Init Server Composer Components

server/vendor/guzzlehttp/psr7/tests/LimitStreamTest.php

@@ -0,0 +1,166 @@
+<?php
+namespace GuzzleHttp\Tests\Psr7;
+
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\FnStream;
+use GuzzleHttp\Psr7\Stream;
+use GuzzleHttp\Psr7\LimitStream;
+use GuzzleHttp\Psr7\NoSeekStream;
+
+/**
+ * @covers GuzzleHttp\Psr7\LimitStream
+ */
+class LimitStreamTest extends \PHPUnit_Framework_TestCase
+{
+    /** @var LimitStream */
+    protected $body;
+
+    /** @var Stream */
+    protected $decorated;
+
+    public function setUp()
+    {
+        $this->decorated = Psr7\stream_for(fopen(__FILE__, 'r'));
+        $this->body = new LimitStream($this->decorated, 10, 3);
+    }
+
+    public function testReturnsSubset()
+    {
+        $body = new LimitStream(Psr7\stream_for('foo'), -1, 1);
+        $this->assertEquals('oo', (string) $body);
+        $this->assertTrue($body->eof());
+        $body->seek(0);
+        $this->assertFalse($body->eof());
+        $this->assertEquals('oo', $body->read(100));
+        $this->assertSame('', $body->read(1));
+        $this->assertTrue($body->eof());
+    }
+
+    public function testReturnsSubsetWhenCastToString()
+    {
+        $body = Psr7\stream_for('foo_baz_bar');
+        $limited = new LimitStream($body, 3, 4);
+        $this->assertEquals('baz', (string) $limited);
+    }
+
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage Unable to seek to stream position 10 with whence 0
+     */
+    public function testEnsuresPositionCanBeekSeekedTo()
+    {
+        new LimitStream(Psr7\stream_for(''), 0, 10);
+    }
+
+    public function testReturnsSubsetOfEmptyBodyWhenCastToString()
+    {
+        $body = Psr7\stream_for('01234567891234');
+        $limited = new LimitStream($body, 0, 10);
+        $this->assertEquals('', (string) $limited);
+    }
+
+    public function testReturnsSpecificSubsetOBodyWhenCastToString()
+    {
+        $body = Psr7\stream_for('0123456789abcdef');
+        $limited = new LimitStream($body, 3, 10);
+        $this->assertEquals('abc', (string) $limited);
+    }
+
+    public function testSeeksWhenConstructed()
+    {
+        $this->assertEquals(0, $this->body->tell());
+        $this->assertEquals(3, $this->decorated->tell());
+    }
+
+    public function testAllowsBoundedSeek()
+    {
+        $this->body->seek(100);
+        $this->assertEquals(10, $this->body->tell());
+        $this->assertEquals(13, $this->decorated->tell());
+        $this->body->seek(0);
+        $this->assertEquals(0, $this->body->tell());
+        $this->assertEquals(3, $this->decorated->tell());
+        try {
+            $this->body->seek(-10);
+            $this->fail();
+        } catch (\RuntimeException $e) {}
+        $this->assertEquals(0, $this->body->tell());
+        $this->assertEquals(3, $this->decorated->tell());
+        $this->body->seek(5);
+        $this->assertEquals(5, $this->body->tell());
+        $this->assertEquals(8, $this->decorated->tell());
+        // Fail
+        try {
+            $this->body->seek(1000, SEEK_END);
+            $this->fail();
+        } catch (\RuntimeException $e) {}
+    }
+
+    public function testReadsOnlySubsetOfData()
+    {
+        $data = $this->body->read(100);
+        $this->assertEquals(10, strlen($data));
+        $this->assertSame('', $this->body->read(1000));
+
+        $this->body->setOffset(10);
+        $newData = $this->body->read(100);
+        $this->assertEquals(10, strlen($newData));
+        $this->assertNotSame($data, $newData);
+    }
+
+    /**
+     * @expectedException \RuntimeException
+     * @expectedExceptionMessage Could not seek to stream offset 2
+     */
+    public function testThrowsWhenCurrentGreaterThanOffsetSeek()
+    {
+        $a = Psr7\stream_for('foo_bar');
+        $b = new NoSeekStream($a);
+        $c = new LimitStream($b);
+        $a->getContents();
+        $c->setOffset(2);
+    }
+
+    public function testCanGetContentsWithoutSeeking()
+    {
+        $a = Psr7\stream_for('foo_bar');
+        $b = new NoSeekStream($a);
+        $c = new LimitStream($b);
+        $this->assertEquals('foo_bar', $c->getContents());
+    }
+
+    public function testClaimsConsumedWhenReadLimitIsReached()
+    {
+        $this->assertFalse($this->body->eof());
+        $this->body->read(1000);
+        $this->assertTrue($this->body->eof());
+    }
+
+    public function testContentLengthIsBounded()
+    {
+        $this->assertEquals(10, $this->body->getSize());
+    }
+
+    public function testGetContentsIsBasedOnSubset()
+    {
+        $body = new LimitStream(Psr7\stream_for('foobazbar'), 3, 3);
+        $this->assertEquals('baz', $body->getContents());
+    }
+
+    public function testReturnsNullIfSizeCannotBeDetermined()
+    {
+        $a = new FnStream([
+            'getSize' => function () { return null; },
+            'tell'    => function () { return 0; },
+        ]);
+        $b = new LimitStream($a);
+        $this->assertNull($b->getSize());
+    }
+
+    public function testLengthLessOffsetWhenNoLimitSize()
+    {
+        $a = Psr7\stream_for('foo_bar');
+        $b = new LimitStream($a, -1, 4);
+        $this->assertEquals(3, $b->getSize());
+    }
+}