case 'pdf': return 'fa-file-pdf-o';
                case 'doc': case 'docx': return 'fa-file-word-o';
                case 'xls': case 'xlsx': return 'fa-file-excel-o';
                case 'ppt': case 'pptx': return 'fa-file-powerpoint-o';
                case 'jpg': case 'jpeg': case 'png': case 'gif': return 'fa-file-image-o';
                case 'txt': case 'md': return 'fa-file-text-o';

		shouldPass bool
	}{
		// cases which should pass the test.
		// passing in valid object name.
		{"object", true},
		{"The Shining Script <v1>.pdf", true},
		{"Cost Benefit Analysis (2009-2010).pptx", true},
		{"117Gn8rfHL2ACARPAhaFd0AGzic9pUbIA/5OCn5A", true},
		{"SHØRT", true},
		{"f*le", true},
		{"contains-^-caret", true},
		{"contains-|-pipe", true},
		{"contains-`-tick", true},
		{"..test", true},