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