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66 lines
1.9 KiB
66 lines
1.9 KiB
2 months ago
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<?php
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declare(strict_types=1);
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namespace GuzzleHttp\Tests\Psr7;
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use GuzzleHttp\Psr7\BufferStream;
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use PHPUnit\Framework\TestCase;
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class BufferStreamTest extends TestCase
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{
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public function testHasMetadata(): void
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{
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$b = new BufferStream(10);
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self::assertTrue($b->isReadable());
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self::assertTrue($b->isWritable());
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self::assertFalse($b->isSeekable());
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self::assertNull($b->getMetadata('foo'));
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self::assertSame(10, $b->getMetadata('hwm'));
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self::assertSame([], $b->getMetadata());
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}
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public function testRemovesReadDataFromBuffer(): void
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{
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$b = new BufferStream();
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self::assertSame(3, $b->write('foo'));
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self::assertSame(3, $b->getSize());
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self::assertFalse($b->eof());
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self::assertSame('foo', $b->read(10));
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self::assertTrue($b->eof());
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self::assertSame('', $b->read(10));
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}
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public function testCanCastToStringOrGetContents(): void
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{
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$b = new BufferStream();
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$b->write('foo');
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$b->write('baz');
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self::assertSame('foo', $b->read(3));
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$b->write('bar');
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self::assertSame('bazbar', (string) $b);
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$this->expectException(\RuntimeException::class);
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$this->expectExceptionMessage('Cannot determine the position of a BufferStream');
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$b->tell();
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}
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public function testDetachClearsBuffer(): void
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{
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$b = new BufferStream();
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$b->write('foo');
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$b->detach();
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self::assertTrue($b->eof());
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self::assertSame(3, $b->write('abc'));
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self::assertSame('abc', $b->read(10));
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}
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public function testExceedingHighwaterMarkReturnsFalseButStillBuffers(): void
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{
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$b = new BufferStream(5);
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self::assertSame(3, $b->write('hi '));
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self::assertSame(0, $b->write('hello'));
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self::assertSame('hi hello', (string) $b);
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self::assertSame(4, $b->write('test'));
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}
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}
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