public function testIsText(){ $file1 = new \Core\Filestore\Backends\FileLocal('core/tests/updater-testdocument.txt'); $file2 = new \Core\Filestore\Backends\FileLocal('core/tests/ivak_TV_Test_Screen.png'); $this->assertTrue($file1->isText()); $this->assertFalse($file2->isText()); }