<?php
 namespace MongoDB\Tests\GridFS;
 use MongoDB\Exception\InvalidArgumentException;
 use MongoDB\GridFS\CollectionWrapper;
 use MongoDB\GridFS\WritableStream;
 use Symfony\Bridge\PhpUnit\SetUpTearDownTrait;
 use function str_repeat;
 class WritableStreamFunctionalTest extends FunctionalTestCase {
 use SetUpTearDownTrait;
 private $collectionWrapper;
 private function doSetUp() {
 parent::setUp();
 $this->collectionWrapper = new CollectionWrapper($this->manager, $this->getDatabaseName(), 'fs');
 }
 public function testValidConstructorOptions() {
 new WritableStream($this->collectionWrapper, 'filename', [ '_id' => 'custom-id', 'chunkSizeBytes' => 2, 'metadata' => ['foo' => 'bar'], ]);
 }
 public function testConstructorOptionTypeChecks(array $options) {
 $this->expectException(InvalidArgumentException::class);
 new WritableStream($this->collectionWrapper, 'filename', $options);
 }
 public function provideInvalidConstructorOptions() {
 $options = [];
 foreach ($this->getInvalidIntegerValues(true) as $value) {
 $options[][] = ['chunkSizeBytes' => $value];
 }
 foreach ($this->getInvalidBooleanValues(true) as $value) {
 $options[][] = ['disableMD5' => $value];
 }
 foreach ($this->getInvalidDocumentValues() as $value) {
 $options[][] = ['metadata' => $value];
 }
 return $options;
 }
 public function testConstructorShouldRequireChunkSizeBytesOptionToBePositive() {
 $this->expectException(InvalidArgumentException::class);
 $this->expectExceptionMessage('Expected "chunkSizeBytes" option to be >= 1, 0 given');
 new WritableStream($this->collectionWrapper, 'filename', ['chunkSizeBytes' => 0]);
 }
 public function testWriteBytesAlwaysUpdatesFileSize() {
 $stream = new WritableStream($this->collectionWrapper, 'filename', ['chunkSizeBytes' => 1024]);
 $this->assertSame(0, $stream->getSize());
 $this->assertSame(512, $stream->writeBytes(str_repeat('a', 512)));
 $this->assertSame(512, $stream->getSize());
 $this->assertSame(512, $stream->writeBytes(str_repeat('a', 512)));
 $this->assertSame(1024, $stream->getSize());
 $this->assertSame(512, $stream->writeBytes(str_repeat('a', 512)));
 $this->assertSame(1536, $stream->getSize());
 $stream->close();
 $this->assertSame(1536, $stream->getSize());
 }
 public function testWriteBytesCalculatesMD5($input, $expectedMD5) {
 $stream = new WritableStream($this->collectionWrapper, 'filename');
 $stream->writeBytes($input);
 $stream->close();
 $fileDocument = $this->filesCollection->findOne( ['_id' => $stream->getFile()->_id], ['projection' => ['md5' => 1, '_id' => 0]] );
 $this->assertSameDocument(['md5' => $expectedMD5], $fileDocument);
 }
 public function provideInputDataAndExpectedMD5() {
 return [ ['', 'd41d8cd98f00b204e9800998ecf8427e'], ['foobar', '3858f62230ac3c915f300c664312c63f'], [str_repeat('foobar', 43520), '88ff0e5fcb0acb27947d736b5d69cb73'], [str_repeat('foobar', 43521), '8ff86511c95a06a611842ceb555d8454'], [str_repeat('foobar', 87040), '45bfa1a9ec36728ee7338d15c5a30c13'], [str_repeat('foobar', 87041), '95e78f624f8e745bcfd2d11691fa601e'], ];
 }
 }
 