largeFile = vfsStream::newFile('large.txt') ->withContent(LargeFileContent::withGigabytes(100)) ->at($root); } /** * @test */ public function hasLargeFileSize() { if (PHP_INT_MAX == 2147483647) { $this->markTestSkipped('Requires 64-bit version of PHP'); } $this->assertEquals( 100 * 1024 * 1024 * 1024, filesize($this->largeFile->url()) ); } /** * @test */ public function canReadFromLargeFile() { $fp = fopen($this->largeFile->url(), 'rb'); $data = fread($fp, 15); fclose($fp); $this->assertEquals(str_repeat(' ', 15), $data); } /** * @test */ public function canWriteIntoLargeFile() { $fp = fopen($this->largeFile->url(), 'rb+'); fseek($fp, 100 * 1024 * 1024, SEEK_SET); fwrite($fp, 'foobarbaz'); fclose($fp); $this->largeFile->seek((100 * 1024 * 1024) - 3, SEEK_SET); $this->assertEquals( ' foobarbaz ', $this->largeFile->read(15) ); } }