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server/vendor/guzzlehttp/promises/tests/AggregateExceptionTest.php

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+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\AggregateException;
+
+class AggregateExceptionTest extends \PHPUnit_Framework_TestCase
+{
+    public function testHasReason()
+    {
+        $e = new AggregateException('foo', ['baz', 'bar']);
+        $this->assertContains('foo', $e->getMessage());
+        $this->assertEquals(['baz', 'bar'], $e->getReason());
+    }
+}

server/vendor/guzzlehttp/promises/tests/EachPromiseTest.php

@@ -0,0 +1,294 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Promise\FulfilledPromise;
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Promise\EachPromise;
+use GuzzleHttp\Promise as P;
+
+/**
+ * @covers GuzzleHttp\Promise\EachPromise
+ */
+class EachPromiseTest extends \PHPUnit_Framework_TestCase
+{
+    public function testReturnsSameInstance()
+    {
+        $each = new EachPromise([], ['concurrency' => 100]);
+        $this->assertSame($each->promise(), $each->promise());
+    }
+
+    public function testInvokesAllPromises()
+    {
+        $promises = [new Promise(), new Promise(), new Promise()];
+        $called = [];
+        $each = new EachPromise($promises, [
+            'fulfilled' => function ($value) use (&$called) {
+                $called[] = $value;
+            }
+        ]);
+        $p = $each->promise();
+        $promises[0]->resolve('a');
+        $promises[1]->resolve('c');
+        $promises[2]->resolve('b');
+        P\queue()->run();
+        $this->assertEquals(['a', 'c', 'b'], $called);
+        $this->assertEquals(PromiseInterface::FULFILLED, $p->getState());
+    }
+
+    public function testIsWaitable()
+    {
+        $a = new Promise(function () use (&$a) { $a->resolve('a'); });
+        $b = new Promise(function () use (&$b) { $b->resolve('b'); });
+        $called = [];
+        $each = new EachPromise([$a, $b], [
+            'fulfilled' => function ($value) use (&$called) { $called[] = $value; }
+        ]);
+        $p = $each->promise();
+        $this->assertNull($p->wait());
+        $this->assertEquals(PromiseInterface::FULFILLED, $p->getState());
+        $this->assertEquals(['a', 'b'], $called);
+    }
+
+    public function testCanResolveBeforeConsumingAll()
+    {
+        $called = 0;
+        $a = new Promise(function () use (&$a) { $a->resolve('a'); });
+        $b = new Promise(function () { $this->fail(); });
+        $each = new EachPromise([$a, $b], [
+            'fulfilled' => function ($value, $idx, Promise $aggregate) use (&$called) {
+                $this->assertSame($idx, 0);
+                $this->assertEquals('a', $value);
+                $aggregate->resolve(null);
+                $called++;
+            },
+            'rejected' => function (\Exception $reason) {
+                $this->fail($reason->getMessage());
+            }
+        ]);
+        $p = $each->promise();
+        $p->wait();
+        $this->assertNull($p->wait());
+        $this->assertEquals(1, $called);
+        $this->assertEquals(PromiseInterface::FULFILLED, $a->getState());
+        $this->assertEquals(PromiseInterface::PENDING, $b->getState());
+        // Resolving $b has no effect on the aggregate promise.
+        $b->resolve('foo');
+        $this->assertEquals(1, $called);
+    }
+
+    public function testLimitsPendingPromises()
+    {
+        $pending = [new Promise(), new Promise(), new Promise(), new Promise()];
+        $promises = new \ArrayIterator($pending);
+        $each = new EachPromise($promises, ['concurrency' => 2]);
+        $p = $each->promise();
+        $this->assertCount(2, $this->readAttribute($each, 'pending'));
+        $pending[0]->resolve('a');
+        $this->assertCount(2, $this->readAttribute($each, 'pending'));
+        $this->assertTrue($promises->valid());
+        $pending[1]->resolve('b');
+        P\queue()->run();
+        $this->assertCount(2, $this->readAttribute($each, 'pending'));
+        $this->assertTrue($promises->valid());
+        $promises[2]->resolve('c');
+        P\queue()->run();
+        $this->assertCount(1, $this->readAttribute($each, 'pending'));
+        $this->assertEquals(PromiseInterface::PENDING, $p->getState());
+        $promises[3]->resolve('d');
+        P\queue()->run();
+        $this->assertNull($this->readAttribute($each, 'pending'));
+        $this->assertEquals(PromiseInterface::FULFILLED, $p->getState());
+        $this->assertFalse($promises->valid());
+    }
+
+    public function testDynamicallyLimitsPendingPromises()
+    {
+        $calls = [];
+        $pendingFn = function ($count) use (&$calls) {
+            $calls[] = $count;
+            return 2;
+        };
+        $pending = [new Promise(), new Promise(), new Promise(), new Promise()];
+        $promises = new \ArrayIterator($pending);
+        $each = new EachPromise($promises, ['concurrency' => $pendingFn]);
+        $p = $each->promise();
+        $this->assertCount(2, $this->readAttribute($each, 'pending'));
+        $pending[0]->resolve('a');
+        $this->assertCount(2, $this->readAttribute($each, 'pending'));
+        $this->assertTrue($promises->valid());
+        $pending[1]->resolve('b');
+        $this->assertCount(2, $this->readAttribute($each, 'pending'));
+        P\queue()->run();
+        $this->assertTrue($promises->valid());
+        $promises[2]->resolve('c');
+        P\queue()->run();
+        $this->assertCount(1, $this->readAttribute($each, 'pending'));
+        $this->assertEquals(PromiseInterface::PENDING, $p->getState());
+        $promises[3]->resolve('d');
+        P\queue()->run();
+        $this->assertNull($this->readAttribute($each, 'pending'));
+        $this->assertEquals(PromiseInterface::FULFILLED, $p->getState());
+        $this->assertEquals([0, 1, 1, 1], $calls);
+        $this->assertFalse($promises->valid());
+    }
+
+    public function testClearsReferencesWhenResolved()
+    {
+        $called = false;
+        $a = new Promise(function () use (&$a, &$called) {
+            $a->resolve('a');
+            $called = true;
+        });
+        $each = new EachPromise([$a], [
+            'concurrency'       => function () { return 1; },
+            'fulfilled' => function () {},
+            'rejected'  => function () {}
+        ]);
+        $each->promise()->wait();
+        $this->assertNull($this->readAttribute($each, 'onFulfilled'));
+        $this->assertNull($this->readAttribute($each, 'onRejected'));
+        $this->assertNull($this->readAttribute($each, 'iterable'));
+        $this->assertNull($this->readAttribute($each, 'pending'));
+        $this->assertNull($this->readAttribute($each, 'concurrency'));
+        $this->assertTrue($called);
+    }
+
+    public function testCanBeCancelled()
+    {
+        $this->markTestIncomplete();
+    }
+
+    public function testFulfillsImmediatelyWhenGivenAnEmptyIterator()
+    {
+        $each = new EachPromise(new \ArrayIterator([]));
+        $result = $each->promise()->wait();
+    }
+
+    public function testDoesNotBlowStackWithFulfilledPromises()
+    {
+        $pending = [];
+        for ($i = 0; $i < 100; $i++) {
+            $pending[] = new FulfilledPromise($i);
+        }
+        $values = [];
+        $each = new EachPromise($pending, [
+            'fulfilled' => function ($value) use (&$values) {
+                $values[] = $value;
+            }
+        ]);
+        $called = false;
+        $each->promise()->then(function () use (&$called) {
+            $called = true;
+        });
+        $this->assertFalse($called);
+        P\queue()->run();
+        $this->assertTrue($called);
+        $this->assertEquals(range(0, 99), $values);
+    }
+
+    public function testDoesNotBlowStackWithRejectedPromises()
+    {
+        $pending = [];
+        for ($i = 0; $i < 100; $i++) {
+            $pending[] = new RejectedPromise($i);
+        }
+        $values = [];
+        $each = new EachPromise($pending, [
+            'rejected' => function ($value) use (&$values) {
+                $values[] = $value;
+            }
+        ]);
+        $called = false;
+        $each->promise()->then(
+            function () use (&$called) { $called = true; },
+            function () { $this->fail('Should not have rejected.'); }
+        );
+        $this->assertFalse($called);
+        P\queue()->run();
+        $this->assertTrue($called);
+        $this->assertEquals(range(0, 99), $values);
+    }
+
+    public function testReturnsPromiseForWhatever()
+    {
+        $called = [];
+        $arr = ['a', 'b'];
+        $each = new EachPromise($arr, [
+            'fulfilled' => function ($v) use (&$called) { $called[] = $v; }
+        ]);
+        $p = $each->promise();
+        $this->assertNull($p->wait());
+        $this->assertEquals(['a', 'b'], $called);
+    }
+
+    public function testRejectsAggregateWhenNextThrows()
+    {
+        $iter = function () {
+            yield 'a';
+            throw new \Exception('Failure');
+        };
+        $each = new EachPromise($iter());
+        $p = $each->promise();
+        $e = null;
+        $received = null;
+        $p->then(null, function ($reason) use (&$e) { $e = $reason; });
+        P\queue()->run();
+        $this->assertInstanceOf('Exception', $e);
+        $this->assertEquals('Failure', $e->getMessage());
+    }
+
+    public function testDoesNotCallNextOnIteratorUntilNeededWhenWaiting()
+    {
+        $results = [];
+        $values = [10];
+        $remaining = 9;
+        $iter = function () use (&$values) {
+            while ($value = array_pop($values)) {
+                yield $value;
+            }
+        };
+        $each = new EachPromise($iter(), [
+            'concurrency' => 1,
+            'fulfilled' => function ($r) use (&$results, &$values, &$remaining) {
+                $results[] = $r;
+                if ($remaining > 0) {
+                    $values[] = $remaining--;
+                }
+            }
+        ]);
+        $each->promise()->wait();
+        $this->assertEquals(range(10, 1), $results);
+    }
+
+    public function testDoesNotCallNextOnIteratorUntilNeededWhenAsync()
+    {
+        $firstPromise = new Promise();
+        $pending = [$firstPromise];
+        $values = [$firstPromise];
+        $results = [];
+        $remaining = 9;
+        $iter = function () use (&$values) {
+            while ($value = array_pop($values)) {
+                yield $value;
+            }
+        };
+        $each = new EachPromise($iter(), [
+            'concurrency' => 1,
+            'fulfilled' => function ($r) use (&$results, &$values, &$remaining, &$pending) {
+                $results[] = $r;
+                if ($remaining-- > 0) {
+                    $pending[] = $values[] = new Promise();
+                }
+            }
+        ]);
+        $i = 0;
+        $each->promise();
+        while ($promise = array_pop($pending)) {
+            $promise->resolve($i++);
+            P\queue()->run();
+        }
+        $this->assertEquals(range(0, 9), $results);
+    }
+}

server/vendor/guzzlehttp/promises/tests/FulfilledPromiseTest.php

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+<?php
+namespace GuzzleHttp\Tests\Promise;
+
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\FulfilledPromise;
+
+/**
+ * @covers GuzzleHttp\Promise\FulfilledPromise
+ */
+class FulfilledPromiseTest extends \PHPUnit_Framework_TestCase
+{
+    public function testReturnsValueWhenWaitedUpon()
+    {
+        $p = new FulfilledPromise('foo');
+        $this->assertEquals('fulfilled', $p->getState());
+        $this->assertEquals('foo', $p->wait(true));
+    }
+
+    public function testCannotCancel()
+    {
+        $p = new FulfilledPromise('foo');
+        $this->assertEquals('fulfilled', $p->getState());
+        $p->cancel();
+        $this->assertEquals('foo', $p->wait());
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @exepctedExceptionMessage Cannot resolve a fulfilled promise
+     */
+    public function testCannotResolve()
+    {
+        $p = new FulfilledPromise('foo');
+        $p->resolve('bar');
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @exepctedExceptionMessage Cannot reject a fulfilled promise
+     */
+    public function testCannotReject()
+    {
+        $p = new FulfilledPromise('foo');
+        $p->reject('bar');
+    }
+
+    public function testCanResolveWithSameValue()
+    {
+        $p = new FulfilledPromise('foo');
+        $p->resolve('foo');
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCannotResolveWithPromise()
+    {
+        new FulfilledPromise(new Promise());
+    }
+
+    public function testReturnsSelfWhenNoOnFulfilled()
+    {
+        $p = new FulfilledPromise('a');
+        $this->assertSame($p, $p->then());
+    }
+
+    public function testAsynchronouslyInvokesOnFulfilled()
+    {
+        $p = new FulfilledPromise('a');
+        $r = null;
+        $f = function ($d) use (&$r) { $r = $d; };
+        $p2 = $p->then($f);
+        $this->assertNotSame($p, $p2);
+        $this->assertNull($r);
+        \GuzzleHttp\Promise\queue()->run();
+        $this->assertEquals('a', $r);
+    }
+
+    public function testReturnsNewRejectedWhenOnFulfilledFails()
+    {
+        $p = new FulfilledPromise('a');
+        $f = function () { throw new \Exception('b'); };
+        $p2 = $p->then($f);
+        $this->assertNotSame($p, $p2);
+        try {
+            $p2->wait();
+            $this->fail();
+        } catch (\Exception $e) {
+            $this->assertEquals('b', $e->getMessage());
+        }
+    }
+
+    public function testOtherwiseIsSugarForRejections()
+    {
+        $c = null;
+        $p = new FulfilledPromise('foo');
+        $p->otherwise(function ($v) use (&$c) { $c = $v; });
+        $this->assertNull($c);
+    }
+
+    public function testDoesNotTryToFulfillTwiceDuringTrampoline()
+    {
+        $fp = new FulfilledPromise('a');
+        $t1 = $fp->then(function ($v) { return $v . ' b'; });
+        $t1->resolve('why!');
+        $this->assertEquals('why!', $t1->wait());
+    }
+}

server/vendor/guzzlehttp/promises/tests/NotPromiseInstance.php

@@ -0,0 +1,50 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\PromiseInterface;
+
+class NotPromiseInstance extends Thennable implements PromiseInterface
+{
+    private $nextPromise = null;
+
+    public function __construct()
+    {
+        $this->nextPromise = new Promise();
+    }
+
+    public function then(callable $res = null, callable $rej = null)
+    {
+        return $this->nextPromise->then($res, $rej);
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then($onRejected);
+    }
+
+    public function resolve($value)
+    {
+        $this->nextPromise->resolve($value);
+    }
+
+    public function reject($reason)
+    {
+        $this->nextPromise->reject($reason);
+    }
+
+    public function wait($unwrap = true, $defaultResolution = null)
+    {
+
+    }
+
+    public function cancel()
+    {
+
+    }
+
+    public function getState()
+    {
+        return $this->nextPromise->getState();
+    }
+}

server/vendor/guzzlehttp/promises/tests/PromiseTest.php

@@ -0,0 +1,579 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\CancellationException;
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Promise\RejectionException;
+
+/**
+ * @covers GuzzleHttp\Promise\Promise
+ */
+class PromiseTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @expectedException \LogicException
+     * @expectedExceptionMessage The promise is already fulfilled
+     */
+    public function testCannotResolveNonPendingPromise()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $p->resolve('bar');
+        $this->assertEquals('foo', $p->wait());
+    }
+
+    public function testCanResolveWithSameValue()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $p->resolve('foo');
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @expectedExceptionMessage Cannot change a fulfilled promise to rejected
+     */
+    public function testCannotRejectNonPendingPromise()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $p->reject('bar');
+        $this->assertEquals('foo', $p->wait());
+    }
+
+    public function testCanRejectWithSameValue()
+    {
+        $p = new Promise();
+        $p->reject('foo');
+        $p->reject('foo');
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @expectedExceptionMessage Cannot change a fulfilled promise to rejected
+     */
+    public function testCannotRejectResolveWithSameValue()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $p->reject('foo');
+    }
+
+    public function testInvokesWaitFunction()
+    {
+        $p = new Promise(function () use (&$p) { $p->resolve('10'); });
+        $this->assertEquals('10', $p->wait());
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\RejectionException
+     */
+    public function testRejectsAndThrowsWhenWaitFailsToResolve()
+    {
+        $p = new Promise(function () {});
+        $p->wait();
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\RejectionException
+     * @expectedExceptionMessage The promise was rejected with reason: foo
+     */
+    public function testThrowsWhenUnwrapIsRejectedWithNonException()
+    {
+        $p = new Promise(function () use (&$p) { $p->reject('foo'); });
+        $p->wait();
+    }
+
+    /**
+     * @expectedException \UnexpectedValueException
+     * @expectedExceptionMessage foo
+     */
+    public function testThrowsWhenUnwrapIsRejectedWithException()
+    {
+        $e = new \UnexpectedValueException('foo');
+        $p = new Promise(function () use (&$p, $e) { $p->reject($e); });
+        $p->wait();
+    }
+
+    public function testDoesNotUnwrapExceptionsWhenDisabled()
+    {
+        $p = new Promise(function () use (&$p) { $p->reject('foo'); });
+        $this->assertEquals('pending', $p->getState());
+        $p->wait(false);
+        $this->assertEquals('rejected', $p->getState());
+    }
+
+    public function testRejectsSelfWhenWaitThrows()
+    {
+        $e = new \UnexpectedValueException('foo');
+        $p = new Promise(function () use ($e) { throw $e; });
+        try {
+            $p->wait();
+            $this->fail();
+        } catch (\UnexpectedValueException $e) {
+            $this->assertEquals('rejected', $p->getState());
+        }
+    }
+
+    public function testWaitsOnNestedPromises()
+    {
+        $p = new Promise(function () use (&$p) { $p->resolve('_'); });
+        $p2 = new Promise(function () use (&$p2) { $p2->resolve('foo'); });
+        $p3 = $p->then(function () use ($p2) { return $p2; });
+        $this->assertSame('foo', $p3->wait());
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\RejectionException
+     */
+    public function testThrowsWhenWaitingOnPromiseWithNoWaitFunction()
+    {
+        $p = new Promise();
+        $p->wait();
+    }
+
+    public function testThrowsWaitExceptionAfterPromiseIsResolved()
+    {
+        $p = new Promise(function () use (&$p) {
+            $p->reject('Foo!');
+            throw new \Exception('Bar?');
+        });
+
+        try {
+            $p->wait();
+            $this->fail();
+        } catch (\Exception $e) {
+            $this->assertEquals('Bar?', $e->getMessage());
+        }
+    }
+
+    public function testGetsActualWaitValueFromThen()
+    {
+        $p = new Promise(function () use (&$p) { $p->reject('Foo!'); });
+        $p2 = $p->then(null, function ($reason) {
+            return new RejectedPromise([$reason]);
+        });
+
+        try {
+            $p2->wait();
+            $this->fail('Should have thrown');
+        } catch (RejectionException $e) {
+            $this->assertEquals(['Foo!'], $e->getReason());
+        }
+    }
+
+    public function testWaitBehaviorIsBasedOnLastPromiseInChain()
+    {
+        $p3 = new Promise(function () use (&$p3) { $p3->resolve('Whoop'); });
+        $p2 = new Promise(function () use (&$p2, $p3) { $p2->reject($p3); });
+        $p = new Promise(function () use (&$p, $p2) { $p->reject($p2); });
+        $this->assertEquals('Whoop', $p->wait());
+    }
+
+    public function testCannotCancelNonPending()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $p->cancel();
+        $this->assertEquals('fulfilled', $p->getState());
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\CancellationException
+     */
+    public function testCancelsPromiseWhenNoCancelFunction()
+    {
+        $p = new Promise();
+        $p->cancel();
+        $this->assertEquals('rejected', $p->getState());
+        $p->wait();
+    }
+
+    public function testCancelsPromiseWithCancelFunction()
+    {
+        $called = false;
+        $p = new Promise(null, function () use (&$called) { $called = true; });
+        $p->cancel();
+        $this->assertEquals('rejected', $p->getState());
+        $this->assertTrue($called);
+    }
+
+    public function testCancelsUppermostPendingPromise()
+    {
+        $called = false;
+        $p1 = new Promise(null, function () use (&$called) { $called = true; });
+        $p2 = $p1->then(function () {});
+        $p3 = $p2->then(function () {});
+        $p4 = $p3->then(function () {});
+        $p3->cancel();
+        $this->assertEquals('rejected', $p1->getState());
+        $this->assertEquals('rejected', $p2->getState());
+        $this->assertEquals('rejected', $p3->getState());
+        $this->assertEquals('pending', $p4->getState());
+        $this->assertTrue($called);
+
+        try {
+            $p3->wait();
+            $this->fail();
+        } catch (CancellationException $e) {
+            $this->assertContains('cancelled', $e->getMessage());
+        }
+
+        try {
+            $p4->wait();
+            $this->fail();
+        } catch (CancellationException $e) {
+            $this->assertContains('cancelled', $e->getMessage());
+        }
+
+        $this->assertEquals('rejected', $p4->getState());
+    }
+
+    public function testCancelsChildPromises()
+    {
+        $called1 = $called2 = $called3 = false;
+        $p1 = new Promise(null, function () use (&$called1) { $called1 = true; });
+        $p2 = new Promise(null, function () use (&$called2) { $called2 = true; });
+        $p3 = new Promise(null, function () use (&$called3) { $called3 = true; });
+        $p4 = $p2->then(function () use ($p3) { return $p3; });
+        $p5 = $p4->then(function () { $this->fail(); });
+        $p4->cancel();
+        $this->assertEquals('pending', $p1->getState());
+        $this->assertEquals('rejected', $p2->getState());
+        $this->assertEquals('rejected', $p4->getState());
+        $this->assertEquals('pending', $p5->getState());
+        $this->assertFalse($called1);
+        $this->assertTrue($called2);
+        $this->assertFalse($called3);
+    }
+
+    public function testRejectsPromiseWhenCancelFails()
+    {
+        $called = false;
+        $p = new Promise(null, function () use (&$called) {
+            $called = true;
+            throw new \Exception('e');
+        });
+        $p->cancel();
+        $this->assertEquals('rejected', $p->getState());
+        $this->assertTrue($called);
+        try {
+            $p->wait();
+            $this->fail();
+        } catch (\Exception $e) {
+            $this->assertEquals('e', $e->getMessage());
+        }
+    }
+
+    public function testCreatesPromiseWhenFulfilledAfterThen()
+    {
+        $p = new Promise();
+        $carry = null;
+        $p2 = $p->then(function ($v) use (&$carry) { $carry = $v; });
+        $this->assertNotSame($p, $p2);
+        $p->resolve('foo');
+        P\queue()->run();
+
+        $this->assertEquals('foo', $carry);
+    }
+
+    public function testCreatesPromiseWhenFulfilledBeforeThen()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $carry = null;
+        $p2 = $p->then(function ($v) use (&$carry) { $carry = $v; });
+        $this->assertNotSame($p, $p2);
+        $this->assertNull($carry);
+        \GuzzleHttp\Promise\queue()->run();
+        $this->assertEquals('foo', $carry);
+    }
+
+    public function testCreatesPromiseWhenFulfilledWithNoCallback()
+    {
+        $p = new Promise();
+        $p->resolve('foo');
+        $p2 = $p->then();
+        $this->assertNotSame($p, $p2);
+        $this->assertInstanceOf('GuzzleHttp\Promise\FulfilledPromise', $p2);
+    }
+
+    public function testCreatesPromiseWhenRejectedAfterThen()
+    {
+        $p = new Promise();
+        $carry = null;
+        $p2 = $p->then(null, function ($v) use (&$carry) { $carry = $v; });
+        $this->assertNotSame($p, $p2);
+        $p->reject('foo');
+        P\queue()->run();
+        $this->assertEquals('foo', $carry);
+    }
+
+    public function testCreatesPromiseWhenRejectedBeforeThen()
+    {
+        $p = new Promise();
+        $p->reject('foo');
+        $carry = null;
+        $p2 = $p->then(null, function ($v) use (&$carry) { $carry = $v; });
+        $this->assertNotSame($p, $p2);
+        $this->assertNull($carry);
+        P\queue()->run();
+        $this->assertEquals('foo', $carry);
+    }
+
+    public function testCreatesPromiseWhenRejectedWithNoCallback()
+    {
+        $p = new Promise();
+        $p->reject('foo');
+        $p2 = $p->then();
+        $this->assertNotSame($p, $p2);
+        $this->assertInstanceOf('GuzzleHttp\Promise\RejectedPromise', $p2);
+    }
+
+    public function testInvokesWaitFnsForThens()
+    {
+        $p = new Promise(function () use (&$p) { $p->resolve('a'); });
+        $p2 = $p
+            ->then(function ($v) { return $v . '-1-'; })
+            ->then(function ($v) { return $v . '2'; });
+        $this->assertEquals('a-1-2', $p2->wait());
+    }
+
+    public function testStacksThenWaitFunctions()
+    {
+        $p1 = new Promise(function () use (&$p1) { $p1->resolve('a'); });
+        $p2 = new Promise(function () use (&$p2) { $p2->resolve('b'); });
+        $p3 = new Promise(function () use (&$p3) { $p3->resolve('c'); });
+        $p4 = $p1
+            ->then(function () use ($p2) { return $p2; })
+            ->then(function () use ($p3) { return $p3; });
+        $this->assertEquals('c', $p4->wait());
+    }
+
+    public function testForwardsFulfilledDownChainBetweenGaps()
+    {
+        $p = new Promise();
+        $r = $r2 = null;
+        $p->then(null, null)
+            ->then(function ($v) use (&$r) { $r = $v; return $v . '2'; })
+            ->then(function ($v) use (&$r2) { $r2 = $v; });
+        $p->resolve('foo');
+        P\queue()->run();
+        $this->assertEquals('foo', $r);
+        $this->assertEquals('foo2', $r2);
+    }
+
+    public function testForwardsRejectedPromisesDownChainBetweenGaps()
+    {
+        $p = new Promise();
+        $r = $r2 = null;
+        $p->then(null, null)
+            ->then(null, function ($v) use (&$r) { $r = $v; return $v . '2'; })
+            ->then(function ($v) use (&$r2) { $r2 = $v; });
+        $p->reject('foo');
+        P\queue()->run();
+        $this->assertEquals('foo', $r);
+        $this->assertEquals('foo2', $r2);
+    }
+
+    public function testForwardsThrownPromisesDownChainBetweenGaps()
+    {
+        $e = new \Exception();
+        $p = new Promise();
+        $r = $r2 = null;
+        $p->then(null, null)
+            ->then(null, function ($v) use (&$r, $e) {
+                $r = $v;
+                throw $e;
+            })
+            ->then(
+                null,
+                function ($v) use (&$r2) { $r2 = $v; }
+            );
+        $p->reject('foo');
+        P\queue()->run();
+        $this->assertEquals('foo', $r);
+        $this->assertSame($e, $r2);
+    }
+
+    public function testForwardsReturnedRejectedPromisesDownChainBetweenGaps()
+    {
+        $p = new Promise();
+        $rejected = new RejectedPromise('bar');
+        $r = $r2 = null;
+        $p->then(null, null)
+            ->then(null, function ($v) use (&$r, $rejected) {
+                $r = $v;
+                return $rejected;
+            })
+            ->then(
+                null,
+                function ($v) use (&$r2) { $r2 = $v; }
+            );
+        $p->reject('foo');
+        P\queue()->run();
+        $this->assertEquals('foo', $r);
+        $this->assertEquals('bar', $r2);
+        try {
+            $p->wait();
+        } catch (RejectionException $e) {
+            $this->assertEquals('foo', $e->getReason());
+        }
+    }
+
+    public function testForwardsHandlersToNextPromise()
+    {
+        $p = new Promise();
+        $p2 = new Promise();
+        $resolved = null;
+        $p
+            ->then(function ($v) use ($p2) { return $p2; })
+            ->then(function ($value) use (&$resolved) { $resolved = $value; });
+        $p->resolve('a');
+        $p2->resolve('b');
+        P\queue()->run();
+        $this->assertEquals('b', $resolved);
+    }
+
+    public function testRemovesReferenceFromChildWhenParentWaitedUpon()
+    {
+        $r = null;
+        $p = new Promise(function () use (&$p) { $p->resolve('a'); });
+        $p2 = new Promise(function () use (&$p2) { $p2->resolve('b'); });
+        $pb = $p->then(
+            function ($v) use ($p2, &$r) {
+                $r = $v;
+                return $p2;
+            })
+            ->then(function ($v) { return $v . '.'; });
+        $this->assertEquals('a', $p->wait());
+        $this->assertEquals('b', $p2->wait());
+        $this->assertEquals('b.', $pb->wait());
+        $this->assertEquals('a', $r);
+    }
+
+    public function testForwardsHandlersWhenFulfilledPromiseIsReturned()
+    {
+        $res = [];
+        $p = new Promise();
+        $p2 = new Promise();
+        $p2->resolve('foo');
+        $p2->then(function ($v) use (&$res) { $res[] = 'A:' . $v; });
+        // $res is A:foo
+        $p
+            ->then(function () use ($p2, &$res) { $res[] = 'B'; return $p2; })
+            ->then(function ($v) use (&$res) { $res[] = 'C:' . $v; });
+        $p->resolve('a');
+        $p->then(function ($v) use (&$res) { $res[] = 'D:' . $v; });
+        P\queue()->run();
+        $this->assertEquals(['A:foo', 'B', 'D:a', 'C:foo'], $res);
+    }
+
+    public function testForwardsHandlersWhenRejectedPromiseIsReturned()
+    {
+        $res = [];
+        $p = new Promise();
+        $p2 = new Promise();
+        $p2->reject('foo');
+        $p2->then(null, function ($v) use (&$res) { $res[] = 'A:' . $v; });
+        $p->then(null, function () use ($p2, &$res) { $res[] = 'B'; return $p2; })
+            ->then(null, function ($v) use (&$res) { $res[] = 'C:' . $v; });
+        $p->reject('a');
+        $p->then(null, function ($v) use (&$res) { $res[] = 'D:' . $v; });
+        P\queue()->run();
+        $this->assertEquals(['A:foo', 'B', 'D:a', 'C:foo'], $res);
+    }
+
+    public function testDoesNotForwardRejectedPromise()
+    {
+        $res = [];
+        $p = new Promise();
+        $p2 = new Promise();
+        $p2->cancel();
+        $p2->then(function ($v) use (&$res) { $res[] = "B:$v"; return $v; });
+        $p->then(function ($v) use ($p2, &$res) { $res[] = "B:$v"; return $p2; })
+            ->then(function ($v) use (&$res) { $res[] = 'C:' . $v; });
+        $p->resolve('a');
+        $p->then(function ($v) use (&$res) { $res[] = 'D:' . $v; });
+        P\queue()->run();
+        $this->assertEquals(['B:a', 'D:a'], $res);
+    }
+
+    public function testRecursivelyForwardsWhenOnlyThennable()
+    {
+        $res = [];
+        $p = new Promise();
+        $p2 = new Thennable();
+        $p2->resolve('foo');
+        $p2->then(function ($v) use (&$res) { $res[] = 'A:' . $v; });
+        $p->then(function () use ($p2, &$res) { $res[] = 'B'; return $p2; })
+            ->then(function ($v) use (&$res) { $res[] = 'C:' . $v; });
+        $p->resolve('a');
+        $p->then(function ($v) use (&$res) { $res[] = 'D:' . $v; });
+        P\queue()->run();
+        $this->assertEquals(['A:foo', 'B', 'D:a', 'C:foo'], $res);
+    }
+
+    public function testRecursivelyForwardsWhenNotInstanceOfPromise()
+    {
+        $res = [];
+        $p = new Promise();
+        $p2 = new NotPromiseInstance();
+        $p2->then(function ($v) use (&$res) { $res[] = 'A:' . $v; });
+        $p->then(function () use ($p2, &$res) { $res[] = 'B'; return $p2; })
+            ->then(function ($v) use (&$res) { $res[] = 'C:' . $v; });
+        $p->resolve('a');
+        $p->then(function ($v) use (&$res) { $res[] = 'D:' . $v; });
+        P\queue()->run();
+        $this->assertEquals(['B', 'D:a'], $res);
+        $p2->resolve('foo');
+        P\queue()->run();
+        $this->assertEquals(['B', 'D:a', 'A:foo', 'C:foo'], $res);
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @expectedExceptionMessage Cannot fulfill or reject a promise with itself
+     */
+    public function testCannotResolveWithSelf()
+    {
+        $p = new Promise();
+        $p->resolve($p);
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @expectedExceptionMessage Cannot fulfill or reject a promise with itself
+     */
+    public function testCannotRejectWithSelf()
+    {
+        $p = new Promise();
+        $p->reject($p);
+    }
+
+    public function testDoesNotBlowStackWhenWaitingOnNestedThens()
+    {
+        $inner = new Promise(function () use (&$inner) { $inner->resolve(0); });
+        $prev = $inner;
+        for ($i = 1; $i < 100; $i++) {
+            $prev = $prev->then(function ($i) { return $i + 1; });
+        }
+
+        $parent = new Promise(function () use (&$parent, $prev) {
+            $parent->resolve($prev);
+        });
+
+        $this->assertEquals(99, $parent->wait());
+    }
+
+    public function testOtherwiseIsSugarForRejections()
+    {
+        $p = new Promise();
+        $p->reject('foo');
+        $p->otherwise(function ($v) use (&$c) { $c = $v; });
+        P\queue()->run();
+        $this->assertEquals($c, 'foo');
+    }
+}

server/vendor/guzzlehttp/promises/tests/RejectedPromiseTest.php

@@ -0,0 +1,143 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+
+/**
+ * @covers GuzzleHttp\Promise\RejectedPromise
+ */
+class RejectedPromiseTest extends \PHPUnit_Framework_TestCase
+{
+    public function testThrowsReasonWhenWaitedUpon()
+    {
+        $p = new RejectedPromise('foo');
+        $this->assertEquals('rejected', $p->getState());
+        try {
+            $p->wait(true);
+            $this->fail();
+        } catch (\Exception $e) {
+            $this->assertEquals('rejected', $p->getState());
+            $this->assertContains('foo', $e->getMessage());
+        }
+    }
+
+    public function testCannotCancel()
+    {
+        $p = new RejectedPromise('foo');
+        $p->cancel();
+        $this->assertEquals('rejected', $p->getState());
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @exepctedExceptionMessage Cannot resolve a rejected promise
+     */
+    public function testCannotResolve()
+    {
+        $p = new RejectedPromise('foo');
+        $p->resolve('bar');
+    }
+
+    /**
+     * @expectedException \LogicException
+     * @exepctedExceptionMessage Cannot reject a rejected promise
+     */
+    public function testCannotReject()
+    {
+        $p = new RejectedPromise('foo');
+        $p->reject('bar');
+    }
+
+    public function testCanRejectWithSameValue()
+    {
+        $p = new RejectedPromise('foo');
+        $p->reject('foo');
+    }
+
+    public function testThrowsSpecificException()
+    {
+        $e = new \Exception();
+        $p = new RejectedPromise($e);
+        try {
+            $p->wait(true);
+            $this->fail();
+        } catch (\Exception $e2) {
+            $this->assertSame($e, $e2);
+        }
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCannotResolveWithPromise()
+    {
+        new RejectedPromise(new Promise());
+    }
+
+    public function testReturnsSelfWhenNoOnReject()
+    {
+        $p = new RejectedPromise('a');
+        $this->assertSame($p, $p->then());
+    }
+
+    public function testInvokesOnRejectedAsynchronously()
+    {
+        $p = new RejectedPromise('a');
+        $r = null;
+        $f = function ($reason) use (&$r) { $r = $reason; };
+        $p->then(null, $f);
+        $this->assertNull($r);
+        \GuzzleHttp\Promise\queue()->run();
+        $this->assertEquals('a', $r);
+    }
+
+    public function testReturnsNewRejectedWhenOnRejectedFails()
+    {
+        $p = new RejectedPromise('a');
+        $f = function () { throw new \Exception('b'); };
+        $p2 = $p->then(null, $f);
+        $this->assertNotSame($p, $p2);
+        try {
+            $p2->wait();
+            $this->fail();
+        } catch (\Exception $e) {
+            $this->assertEquals('b', $e->getMessage());
+        }
+    }
+
+    public function testWaitingIsNoOp()
+    {
+        $p = new RejectedPromise('a');
+        $p->wait(false);
+    }
+
+    public function testOtherwiseIsSugarForRejections()
+    {
+        $p = new RejectedPromise('foo');
+        $p->otherwise(function ($v) use (&$c) { $c = $v; });
+        \GuzzleHttp\Promise\queue()->run();
+        $this->assertSame('foo', $c);
+    }
+
+    public function testCanResolveThenWithSuccess()
+    {
+        $actual = null;
+        $p = new RejectedPromise('foo');
+        $p->otherwise(function ($v) {
+            return $v . ' bar';
+        })->then(function ($v) use (&$actual) {
+            $actual = $v;
+        });
+        \GuzzleHttp\Promise\queue()->run();
+        $this->assertEquals('foo bar', $actual);
+    }
+
+    public function testDoesNotTryToRejectTwiceDuringTrampoline()
+    {
+        $fp = new RejectedPromise('a');
+        $t1 = $fp->then(null, function ($v) { return $v . ' b'; });
+        $t1->resolve('why!');
+        $this->assertEquals('why!', $t1->wait());
+    }
+}

server/vendor/guzzlehttp/promises/tests/RejectionExceptionTest.php

@@ -0,0 +1,47 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\RejectionException;
+
+class Thing1
+{
+    public function __construct($message)
+    {
+        $this->message = $message;
+    }
+
+    public function __toString()
+    {
+        return $this->message;
+    }
+}
+
+class Thing2 implements \JsonSerializable
+{
+    public function jsonSerialize()
+    {
+        return '{}';
+    }
+}
+
+/**
+ * @covers GuzzleHttp\Promise\RejectionException
+ */
+class RejectionExceptionTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCanGetReasonFromException()
+    {
+        $thing = new Thing1('foo');
+        $e = new RejectionException($thing);
+
+        $this->assertSame($thing, $e->getReason());
+        $this->assertEquals('The promise was rejected with reason: foo', $e->getMessage());
+    }
+
+    public function testCanGetReasonMessageFromJson()
+    {
+        $reason = new Thing2();
+        $e = new RejectionException($reason);
+        $this->assertContains("{}", $e->getMessage());
+    }
+}

server/vendor/guzzlehttp/promises/tests/TaskQueueTest.php

@@ -0,0 +1,31 @@
+<?php
+namespace GuzzleHttp\Promise\Test;
+
+use GuzzleHttp\Promise\TaskQueue;
+
+class TaskQueueTest extends \PHPUnit_Framework_TestCase
+{
+    public function testKnowsIfEmpty()
+    {
+        $tq = new TaskQueue(false);
+        $this->assertTrue($tq->isEmpty());
+    }
+
+    public function testKnowsIfFull()
+    {
+        $tq = new TaskQueue(false);
+        $tq->add(function () {});
+        $this->assertFalse($tq->isEmpty());
+    }
+
+    public function testExecutesTasksInOrder()
+    {
+        $tq = new TaskQueue(false);
+        $called = [];
+        $tq->add(function () use (&$called) { $called[] = 'a'; });
+        $tq->add(function () use (&$called) { $called[] = 'b'; });
+        $tq->add(function () use (&$called) { $called[] = 'c'; });
+        $tq->run();
+        $this->assertEquals(['a', 'b', 'c'], $called);
+    }
+}

server/vendor/guzzlehttp/promises/tests/Thennable.php

@@ -0,0 +1,24 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise\Promise;
+
+class Thennable
+{
+    private $nextPromise = null;
+
+    public function __construct()
+    {
+        $this->nextPromise = new Promise();
+    }
+
+    public function then(callable $res = null, callable $rej = null)
+    {
+        return $this->nextPromise->then($res, $rej);
+    }
+
+    public function resolve($value)
+    {
+        $this->nextPromise->resolve($value);
+    }
+}

server/vendor/guzzlehttp/promises/tests/bootstrap.php

@@ -0,0 +1,4 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+require __DIR__ . '/Thennable.php';
+require __DIR__ . '/NotPromiseInstance.php';

server/vendor/guzzlehttp/promises/tests/functionsTest.php

@@ -0,0 +1,694 @@
+<?php
+namespace GuzzleHttp\Promise\Tests;
+
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\FulfilledPromise;
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+
+class FunctionsTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCreatesPromiseForValue()
+    {
+        $p = \GuzzleHttp\Promise\promise_for('foo');
+        $this->assertInstanceOf('GuzzleHttp\Promise\FulfilledPromise', $p);
+    }
+
+    public function testReturnsPromiseForPromise()
+    {
+        $p = new Promise();
+        $this->assertSame($p, \GuzzleHttp\Promise\promise_for($p));
+    }
+
+    public function testReturnsPromiseForThennable()
+    {
+        $p = new Thennable();
+        $wrapped = \GuzzleHttp\Promise\promise_for($p);
+        $this->assertNotSame($p, $wrapped);
+        $this->assertInstanceOf('GuzzleHttp\Promise\PromiseInterface', $wrapped);
+        $p->resolve('foo');
+        P\queue()->run();
+        $this->assertEquals('foo', $wrapped->wait());
+    }
+
+    public function testReturnsRejection()
+    {
+        $p = \GuzzleHttp\Promise\rejection_for('fail');
+        $this->assertInstanceOf('GuzzleHttp\Promise\RejectedPromise', $p);
+        $this->assertEquals('fail', $this->readAttribute($p, 'reason'));
+    }
+
+    public function testReturnsPromisesAsIsInRejectionFor()
+    {
+        $a = new Promise();
+        $b = \GuzzleHttp\Promise\rejection_for($a);
+        $this->assertSame($a, $b);
+    }
+
+    public function testWaitsOnAllPromisesIntoArray()
+    {
+        $e = new \Exception();
+        $a = new Promise(function () use (&$a) { $a->resolve('a'); });
+        $b = new Promise(function () use (&$b) { $b->reject('b'); });
+        $c = new Promise(function () use (&$c, $e) { $c->reject($e); });
+        $results = \GuzzleHttp\Promise\inspect_all([$a, $b, $c]);
+        $this->assertEquals([
+            ['state' => 'fulfilled', 'value' => 'a'],
+            ['state' => 'rejected', 'reason' => 'b'],
+            ['state' => 'rejected', 'reason' => $e]
+        ], $results);
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\RejectionException
+     */
+    public function testUnwrapsPromisesWithNoDefaultAndFailure()
+    {
+        $promises = [new FulfilledPromise('a'), new Promise()];
+        \GuzzleHttp\Promise\unwrap($promises);
+    }
+
+    public function testUnwrapsPromisesWithNoDefault()
+    {
+        $promises = [new FulfilledPromise('a')];
+        $this->assertEquals(['a'], \GuzzleHttp\Promise\unwrap($promises));
+    }
+
+    public function testUnwrapsPromisesWithKeys()
+    {
+        $promises = [
+            'foo' => new FulfilledPromise('a'),
+            'bar' => new FulfilledPromise('b'),
+        ];
+        $this->assertEquals([
+            'foo' => 'a',
+            'bar' => 'b'
+        ], \GuzzleHttp\Promise\unwrap($promises));
+    }
+
+    public function testAllAggregatesSortedArray()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $c = new Promise();
+        $d = \GuzzleHttp\Promise\all([$a, $b, $c]);
+        $b->resolve('b');
+        $a->resolve('a');
+        $c->resolve('c');
+        $d->then(
+            function ($value) use (&$result) { $result = $value; },
+            function ($reason) use (&$result) { $result = $reason; }
+        );
+        P\queue()->run();
+        $this->assertEquals(['a', 'b', 'c'], $result);
+    }
+
+    public function testAllThrowsWhenAnyRejected()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $c = new Promise();
+        $d = \GuzzleHttp\Promise\all([$a, $b, $c]);
+        $b->resolve('b');
+        $a->reject('fail');
+        $c->resolve('c');
+        $d->then(
+            function ($value) use (&$result) { $result = $value; },
+            function ($reason) use (&$result) { $result = $reason; }
+        );
+        P\queue()->run();
+        $this->assertEquals('fail', $result);
+    }
+
+    public function testSomeAggregatesSortedArrayWithMax()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $c = new Promise();
+        $d = \GuzzleHttp\Promise\some(2, [$a, $b, $c]);
+        $b->resolve('b');
+        $c->resolve('c');
+        $a->resolve('a');
+        $d->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals(['b', 'c'], $result);
+    }
+
+    public function testSomeRejectsWhenTooManyRejections()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $d = \GuzzleHttp\Promise\some(2, [$a, $b]);
+        $a->reject('bad');
+        $b->resolve('good');
+        P\queue()->run();
+        $this->assertEquals($a::REJECTED, $d->getState());
+        $d->then(null, function ($reason) use (&$called) {
+            $called = $reason;
+        });
+        P\queue()->run();
+        $this->assertInstanceOf('GuzzleHttp\Promise\AggregateException', $called);
+        $this->assertContains('bad', $called->getReason());
+    }
+
+    public function testCanWaitUntilSomeCountIsSatisfied()
+    {
+        $a = new Promise(function () use (&$a) { $a->resolve('a'); });
+        $b = new Promise(function () use (&$b) { $b->resolve('b'); });
+        $c = new Promise(function () use (&$c) { $c->resolve('c'); });
+        $d = \GuzzleHttp\Promise\some(2, [$a, $b, $c]);
+        $this->assertEquals(['a', 'b'], $d->wait());
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\AggregateException
+     * @expectedExceptionMessage Not enough promises to fulfill count
+     */
+    public function testThrowsIfImpossibleToWaitForSomeCount()
+    {
+        $a = new Promise(function () use (&$a) { $a->resolve('a'); });
+        $d = \GuzzleHttp\Promise\some(2, [$a]);
+        $d->wait();
+    }
+
+    /**
+     * @expectedException \GuzzleHttp\Promise\AggregateException
+     * @expectedExceptionMessage Not enough promises to fulfill count
+     */
+    public function testThrowsIfResolvedWithoutCountTotalResults()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $d = \GuzzleHttp\Promise\some(3, [$a, $b]);
+        $a->resolve('a');
+        $b->resolve('b');
+        $d->wait();
+    }
+
+    public function testAnyReturnsFirstMatch()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $c = \GuzzleHttp\Promise\any([$a, $b]);
+        $b->resolve('b');
+        $a->resolve('a');
+        //P\queue()->run();
+        //$this->assertEquals('fulfilled', $c->getState());
+        $c->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals('b', $result);
+    }
+
+    public function testSettleFulfillsWithFulfilledAndRejected()
+    {
+        $a = new Promise();
+        $b = new Promise();
+        $c = new Promise();
+        $d = \GuzzleHttp\Promise\settle([$a, $b, $c]);
+        $b->resolve('b');
+        $c->resolve('c');
+        $a->reject('a');
+        P\queue()->run();
+        $this->assertEquals('fulfilled', $d->getState());
+        $d->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals([
+            ['state' => 'rejected', 'reason' => 'a'],
+            ['state' => 'fulfilled', 'value' => 'b'],
+            ['state' => 'fulfilled', 'value' => 'c']
+        ], $result);
+    }
+
+    public function testCanInspectFulfilledPromise()
+    {
+        $p = new FulfilledPromise('foo');
+        $this->assertEquals([
+            'state' => 'fulfilled',
+            'value' => 'foo'
+        ], \GuzzleHttp\Promise\inspect($p));
+    }
+
+    public function testCanInspectRejectedPromise()
+    {
+        $p = new RejectedPromise('foo');
+        $this->assertEquals([
+            'state'  => 'rejected',
+            'reason' => 'foo'
+        ], \GuzzleHttp\Promise\inspect($p));
+    }
+
+    public function testCanInspectRejectedPromiseWithNormalException()
+    {
+        $e = new \Exception('foo');
+        $p = new RejectedPromise($e);
+        $this->assertEquals([
+            'state'  => 'rejected',
+            'reason' => $e
+        ], \GuzzleHttp\Promise\inspect($p));
+    }
+
+    public function testCallsEachLimit()
+    {
+        $p = new Promise();
+        $aggregate = \GuzzleHttp\Promise\each_limit($p, 2);
+        $p->resolve('a');
+        P\queue()->run();
+        $this->assertEquals($p::FULFILLED, $aggregate->getState());
+    }
+
+    public function testEachLimitAllRejectsOnFailure()
+    {
+        $p = [new FulfilledPromise('a'), new RejectedPromise('b')];
+        $aggregate = \GuzzleHttp\Promise\each_limit_all($p, 2);
+        P\queue()->run();
+        $this->assertEquals(P\PromiseInterface::REJECTED, $aggregate->getState());
+        $result = \GuzzleHttp\Promise\inspect($aggregate);
+        $this->assertEquals('b', $result['reason']);
+    }
+
+    public function testIterForReturnsIterator()
+    {
+        $iter = new \ArrayIterator();
+        $this->assertSame($iter, \GuzzleHttp\Promise\iter_for($iter));
+    }
+
+    public function testKnowsIfFulfilled()
+    {
+        $p = new FulfilledPromise(null);
+        $this->assertTrue(P\is_fulfilled($p));
+        $this->assertFalse(P\is_rejected($p));
+    }
+
+    public function testKnowsIfRejected()
+    {
+        $p = new RejectedPromise(null);
+        $this->assertTrue(P\is_rejected($p));
+        $this->assertFalse(P\is_fulfilled($p));
+    }
+
+    public function testKnowsIfSettled()
+    {
+        $p = new RejectedPromise(null);
+        $this->assertTrue(P\is_settled($p));
+        $p = new Promise();
+        $this->assertFalse(P\is_settled($p));
+    }
+
+    public function testReturnsTrampoline()
+    {
+        $this->assertInstanceOf('GuzzleHttp\Promise\TaskQueue', P\queue());
+        $this->assertSame(P\queue(), P\queue());
+    }
+
+    public function testCanScheduleThunk()
+    {
+        $tramp = P\queue();
+        $promise = P\task(function () { return 'Hi!'; });
+        $c = null;
+        $promise->then(function ($v) use (&$c) { $c = $v; });
+        $this->assertNull($c);
+        $tramp->run();
+        $this->assertEquals('Hi!', $c);
+    }
+
+    public function testCanScheduleThunkWithRejection()
+    {
+        $tramp = P\queue();
+        $promise = P\task(function () { throw new \Exception('Hi!'); });
+        $c = null;
+        $promise->otherwise(function ($v) use (&$c) { $c = $v; });
+        $this->assertNull($c);
+        $tramp->run();
+        $this->assertEquals('Hi!', $c->getMessage());
+    }
+
+    public function testCanScheduleThunkWithWait()
+    {
+        $tramp = P\queue();
+        $promise = P\task(function () { return 'a'; });
+        $this->assertEquals('a', $promise->wait());
+        $tramp->run();
+    }
+
+    public function testYieldsFromCoroutine()
+    {
+        $promise = P\coroutine(function () {
+            $value = (yield new P\FulfilledPromise('a'));
+            yield  $value . 'b';
+        });
+        $promise->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals('ab', $result);
+    }
+
+    public function testCanCatchExceptionsInCoroutine()
+    {
+        $promise = P\coroutine(function () {
+            try {
+                yield new P\RejectedPromise('a');
+                $this->fail('Should have thrown into the coroutine!');
+            } catch (P\RejectionException $e) {
+                $value = (yield new P\FulfilledPromise($e->getReason()));
+                yield  $value . 'b';
+            }
+        });
+        $promise->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals(P\PromiseInterface::FULFILLED, $promise->getState());
+        $this->assertEquals('ab', $result);
+    }
+
+    public function testRejectsParentExceptionWhenException()
+    {
+        $promise = P\coroutine(function () {
+            yield new P\FulfilledPromise(0);
+            throw new \Exception('a');
+        });
+        $promise->then(
+            function () { $this->fail(); },
+            function ($reason) use (&$result) { $result = $reason; }
+        );
+        P\queue()->run();
+        $this->assertInstanceOf('Exception', $result);
+        $this->assertEquals('a', $result->getMessage());
+    }
+
+    public function testCanRejectFromRejectionCallback()
+    {
+        $promise = P\coroutine(function () {
+            yield new P\FulfilledPromise(0);
+            yield new P\RejectedPromise('no!');
+        });
+        $promise->then(
+            function () { $this->fail(); },
+            function ($reason) use (&$result) { $result = $reason; }
+        );
+        P\queue()->run();
+        $this->assertInstanceOf('GuzzleHttp\Promise\RejectionException', $result);
+        $this->assertEquals('no!', $result->getReason());
+    }
+
+    public function testCanAsyncReject()
+    {
+        $rej = new P\Promise();
+        $promise = P\coroutine(function () use ($rej) {
+            yield new P\FulfilledPromise(0);
+            yield $rej;
+        });
+        $promise->then(
+            function () { $this->fail(); },
+            function ($reason) use (&$result) { $result = $reason; }
+        );
+        $rej->reject('no!');
+        P\queue()->run();
+        $this->assertInstanceOf('GuzzleHttp\Promise\RejectionException', $result);
+        $this->assertEquals('no!', $result->getReason());
+    }
+
+    public function testCanCatchAndThrowOtherException()
+    {
+        $promise = P\coroutine(function () {
+            try {
+                yield new P\RejectedPromise('a');
+                $this->fail('Should have thrown into the coroutine!');
+            } catch (P\RejectionException $e) {
+                throw new \Exception('foo');
+            }
+        });
+        $promise->otherwise(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals(P\PromiseInterface::REJECTED, $promise->getState());
+        $this->assertContains('foo', $result->getMessage());
+    }
+
+    public function testCanCatchAndYieldOtherException()
+    {
+        $promise = P\coroutine(function () {
+            try {
+                yield new P\RejectedPromise('a');
+                $this->fail('Should have thrown into the coroutine!');
+            } catch (P\RejectionException $e) {
+                yield new P\RejectedPromise('foo');
+            }
+        });
+        $promise->otherwise(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals(P\PromiseInterface::REJECTED, $promise->getState());
+        $this->assertContains('foo', $result->getMessage());
+    }
+
+    public function createLotsOfSynchronousPromise()
+    {
+        return P\coroutine(function () {
+            $value = 0;
+            for ($i = 0; $i < 1000; $i++) {
+                $value = (yield new P\FulfilledPromise($i));
+            }
+            yield $value;
+        });
+    }
+
+    public function testLotsOfSynchronousDoesNotBlowStack()
+    {
+        $promise = $this->createLotsOfSynchronousPromise();
+        $promise->then(function ($v) use (&$r) { $r = $v; });
+        P\queue()->run();
+        $this->assertEquals(999, $r);
+    }
+
+    public function testLotsOfSynchronousWaitDoesNotBlowStack()
+    {
+        $promise = $this->createLotsOfSynchronousPromise();
+        $promise->then(function ($v) use (&$r) { $r = $v; });
+        $this->assertEquals(999, $promise->wait());
+        $this->assertEquals(999, $r);
+    }
+
+    private function createLotsOfFlappingPromise()
+    {
+        return P\coroutine(function () {
+            $value = 0;
+            for ($i = 0; $i < 1000; $i++) {
+                try {
+                    if ($i % 2) {
+                        $value = (yield new P\FulfilledPromise($i));
+                    } else {
+                        $value = (yield new P\RejectedPromise($i));
+                    }
+                } catch (\Exception $e) {
+                    $value = (yield new P\FulfilledPromise($i));
+                }
+            }
+            yield $value;
+        });
+    }
+
+    public function testLotsOfTryCatchingDoesNotBlowStack()
+    {
+        $promise = $this->createLotsOfFlappingPromise();
+        $promise->then(function ($v) use (&$r) { $r = $v; });
+        P\queue()->run();
+        $this->assertEquals(999, $r);
+    }
+
+    public function testLotsOfTryCatchingWaitingDoesNotBlowStack()
+    {
+        $promise = $this->createLotsOfFlappingPromise();
+        $promise->then(function ($v) use (&$r) { $r = $v; });
+        $this->assertEquals(999, $promise->wait());
+        $this->assertEquals(999, $r);
+    }
+
+    public function testAsyncPromisesWithCorrectlyYieldedValues()
+    {
+        $promises = [
+            new P\Promise(),
+            new P\Promise(),
+            new P\Promise()
+        ];
+
+        $promise = P\coroutine(function () use ($promises) {
+            $value = null;
+            $this->assertEquals('skip', (yield new P\FulfilledPromise('skip')));
+            foreach ($promises as $idx => $p) {
+                $value = (yield $p);
+                $this->assertEquals($value, $idx);
+                $this->assertEquals('skip', (yield new P\FulfilledPromise('skip')));
+            }
+            $this->assertEquals('skip', (yield new P\FulfilledPromise('skip')));
+            yield $value;
+        });
+
+        $promises[0]->resolve(0);
+        $promises[1]->resolve(1);
+        $promises[2]->resolve(2);
+
+        $promise->then(function ($v) use (&$r) { $r = $v; });
+        P\queue()->run();
+        $this->assertEquals(2, $r);
+    }
+
+    public function testYieldFinalWaitablePromise()
+    {
+        $p1 = new P\Promise(function () use (&$p1) {
+            $p1->resolve('skip me');
+        });
+        $p2 = new P\Promise(function () use (&$p2) {
+            $p2->resolve('hello!');
+        });
+        $co = P\coroutine(function() use ($p1, $p2) {
+            yield $p1;
+            yield $p2;
+        });
+        P\queue()->run();
+        $this->assertEquals('hello!', $co->wait());
+    }
+
+    public function testCanYieldFinalPendingPromise()
+    {
+        $p1 = new P\Promise();
+        $p2 = new P\Promise();
+        $co = P\coroutine(function() use ($p1, $p2) {
+            yield $p1;
+            yield $p2;
+        });
+        $p1->resolve('a');
+        $p2->resolve('b');
+        $co->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals('b', $result);
+    }
+
+    public function testCanNestYieldsAndFailures()
+    {
+        $p1 = new P\Promise();
+        $p2 = new P\Promise();
+        $p3 = new P\Promise();
+        $p4 = new P\Promise();
+        $p5 = new P\Promise();
+        $co = P\coroutine(function() use ($p1, $p2, $p3, $p4, $p5) {
+            try {
+                yield $p1;
+            } catch (\Exception $e) {
+                yield $p2;
+                try {
+                    yield $p3;
+                    yield $p4;
+                } catch (\Exception $e) {
+                    yield $p5;
+                }
+            }
+        });
+        $p1->reject('a');
+        $p2->resolve('b');
+        $p3->resolve('c');
+        $p4->reject('d');
+        $p5->resolve('e');
+        $co->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals('e', $result);
+    }
+
+    public function testCanYieldErrorsAndSuccessesWithoutRecursion()
+    {
+        $promises = [];
+        for ($i = 0; $i < 20; $i++) {
+            $promises[] = new P\Promise();
+        }
+
+        $co = P\coroutine(function() use ($promises) {
+            for ($i = 0; $i < 20; $i += 4) {
+                try {
+                    yield $promises[$i];
+                    yield $promises[$i + 1];
+                } catch (\Exception $e) {
+                    yield $promises[$i + 2];
+                    yield $promises[$i + 3];
+                }
+            }
+        });
+
+        for ($i = 0; $i < 20; $i += 4) {
+            $promises[$i]->resolve($i);
+            $promises[$i + 1]->reject($i + 1);
+            $promises[$i + 2]->resolve($i + 2);
+            $promises[$i + 3]->resolve($i + 3);
+        }
+
+        $co->then(function ($value) use (&$result) { $result = $value; });
+        P\queue()->run();
+        $this->assertEquals('19', $result);
+    }
+
+    public function testCanWaitOnPromiseAfterFulfilled()
+    {
+        $f = function () {
+            static $i = 0;
+            $i++;
+            return $p = new P\Promise(function () use (&$p, $i) {
+                $p->resolve($i . '-bar');
+            });
+        };
+
+        $promises = [];
+        for ($i = 0; $i < 20; $i++) {
+            $promises[] = $f();
+        }
+
+        $p = P\coroutine(function () use ($promises) {
+            yield new P\FulfilledPromise('foo!');
+            foreach ($promises as $promise) {
+                yield $promise;
+            }
+        });
+
+        $this->assertEquals('20-bar', $p->wait());
+    }
+
+    public function testCanWaitOnErroredPromises()
+    {
+        $p1 = new P\Promise(function () use (&$p1) { $p1->reject('a'); });
+        $p2 = new P\Promise(function () use (&$p2) { $p2->resolve('b'); });
+        $p3 = new P\Promise(function () use (&$p3) { $p3->resolve('c'); });
+        $p4 = new P\Promise(function () use (&$p4) { $p4->reject('d'); });
+        $p5 = new P\Promise(function () use (&$p5) { $p5->resolve('e'); });
+        $p6 = new P\Promise(function () use (&$p6) { $p6->reject('f'); });
+
+        $co = P\coroutine(function() use ($p1, $p2, $p3, $p4, $p5, $p6) {
+            try {
+                yield $p1;
+            } catch (\Exception $e) {
+                yield $p2;
+                try {
+                    yield $p3;
+                    yield $p4;
+                } catch (\Exception $e) {
+                    yield $p5;
+                    yield $p6;
+                }
+            }
+        });
+
+        $res = P\inspect($co);
+        $this->assertEquals('f', $res['reason']);
+    }
+
+    public function testCoroutineOtherwiseIntegrationTest()
+    {
+        $a = new P\Promise();
+        $b = new P\Promise();
+        $promise = P\coroutine(function () use ($a, $b) {
+            // Execute the pool of commands concurrently, and process errors.
+            yield $a;
+            yield $b;
+        })->otherwise(function (\Exception $e) {
+            // Throw errors from the operations as a specific Multipart error.
+            throw new \OutOfBoundsException('a', 0, $e);
+        });
+        $a->resolve('a');
+        $b->reject('b');
+        $reason = P\inspect($promise)['reason'];
+        $this->assertInstanceOf('OutOfBoundsException', $reason);
+        $this->assertInstanceOf('GuzzleHttp\Promise\RejectionException', $reason->getPrevious());
+    }
+}