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