num and string partially done

@@ -24,8 +24,10 @@ extension GetNumUtils on num {
   ///   print('currently running callback 1.2sec');
   /// }
   ///```
-  Future delay([VoidCallback callback]) async =>
-      Future.delayed(Duration(milliseconds: (this * 1000).round()), callback);
+  Future delay([VoidCallback callback]) async => Future.delayed(
+        Duration(milliseconds: (this * 1000).round()),
+        callback,
+      );
 
   /// Easy way to make Durations from numbers.
   ///

@@ -4,18 +4,42 @@ import 'package:get/utils.dart';
 void main() {
   num x = 5;
   num y = 7;
-  test('Test for var.isLowerThan(value)', () {
+  num z = 5;
+
+  var doubleX = 2.1;
+  var doubleY = 3.1;
+  var doubleZ = 5.0;
+  var pi = 3.14159265359;
+
+  group('num extensions text', () {
+    test('var.isLowerThan(value)', () {
       expect(x.isLowerThan(y), true);
       expect(y.isLowerThan(x), false);
+      expect(x.isLowerThan(z), false);
+      expect(doubleX.isLowerThan(doubleY), true);
+      expect(doubleY.isLowerThan(pi), true);
+      expect(x.isLowerThan(doubleX), false);
+      expect(z.isLowerThan(doubleZ), false);
     });
-  test('Test for var.isGreaterThan(value)', () {
+    test('var.isGreaterThan(value)', () {
       expect(x.isGreaterThan(y), false);
       expect(y.isGreaterThan(x), true);
+      expect(x.isGreaterThan(z), false);
+      expect(doubleX.isGreaterThan(doubleY), false);
+      expect(doubleY.isGreaterThan(pi), false);
+      expect(pi.isGreaterThan(3.14159265359), false);
+      expect(y.isGreaterThan(doubleY), true);
+      expect(z.isGreaterThan(doubleZ), false);
     });
-  test('Test for var.isGreaterThan(value)', () {
+    test('var.isEqual(value)', () {
       expect(x.isEqual(y), false);
       expect(y.isEqual(x), false);
       expect(x.isEqual(5), true);
       expect(y.isEqual(7), true);
+      expect(doubleX.isEqual(doubleY), false);
+      expect(doubleY.isEqual(pi), false);
+      expect(pi.isEqual(3.14159265359), true);
+      expect(z.isEqual(doubleZ), true);
+    });
   });
 }

@@ -16,4 +16,99 @@ void main() {
       expect(testString.isNullOrBlank, equals(true));
     });
   });
+
+  group('String extensions', () {
+    var text = "oi";
+    var digit = "5";
+    var specialCaracters = "#\$!%@";
+    var alphaNumeric = "123asd";
+    var numbers = "123";
+    var letters = "foo";
+    String notInitializedVar;
+
+    test('var.isNum', () {
+      expect(digit.isNum, true);
+      expect(text.isNum, false);
+    });
+
+    test('var.isNumericOnly', () {
+      expect(numbers.isNumericOnly, true);
+      expect(letters.isNumericOnly, false);
+      expect(specialCaracters.isNumericOnly, false);
+      expect(alphaNumeric.isNumericOnly, false);
+    });
+
+    test('var.isAlphabetOnly', () {
+      expect(alphaNumeric.isAlphabetOnly, false);
+      expect(numbers.isAlphabetOnly, false);
+      expect(letters.isAlphabetOnly, true);
+    });
+
+    test('var.isBool', () {
+      var trueString = 'true';
+      expect(notInitializedVar.isBool, false);
+      expect(letters.isBool, false);
+      expect(trueString.isBool, true);
+    });
+
+    test('var.isVectorFileName', () {
+      var path = "logo.svg";
+      var fullPath = "C:/Users/Getx/Documents/logo.svg";
+      expect(path.isVectorFileName, true);
+      expect(fullPath.isVectorFileName, true);
+      expect(alphaNumeric.isVectorFileName, false);
+    });
+
+    test('var.isImageFileName', () {
+      var jpgPath = "logo.jpg";
+      var jpegPath = "logo.jpeg";
+      var pngPath = "logo.png";
+      var gifPath = "logo.gif";
+      var bmpPath = "logo.bmp";
+      var svgPath = "logo.svg";
+
+      expect(jpgPath.isImageFileName, true);
+      expect(jpegPath.isImageFileName, true);
+      expect(pngPath.isImageFileName, true);
+      expect(gifPath.isImageFileName, true);
+      expect(bmpPath.isImageFileName, true);
+      expect(svgPath.isImageFileName, false);
+    });
+
+    test('var.isAudioFileName', () {
+      var mp3Path = "logo.mp3";
+      var wavPath = "logo.wav";
+      var wmaPath = "logo.wma";
+      var amrPath = "logo.amr";
+      var oggPath = "logo.ogg";
+      var svgPath = "logo.svg";
+
+      expect(mp3Path.isAudioFileName, true);
+      expect(wavPath.isAudioFileName, true);
+      expect(wmaPath.isAudioFileName, true);
+      expect(amrPath.isAudioFileName, true);
+      expect(oggPath.isAudioFileName, true);
+      expect(svgPath.isAudioFileName, false);
+    });
+
+    test('var.isVideoFileName', () {
+      var mp4Path = "logo.mp4";
+      var aviPath = "logo.avi";
+      var wmvPath = "logo.wmv";
+      var rmvbPath = "logo.rmvb";
+      var mpgPath = "logo.mpg";
+      var mpegPath = "logo.mpeg";
+      var threegpPath = "logo.3gp";
+      var svgPath = "logo.svg";
+
+      expect(mp4Path.isVideoFileName, true);
+      expect(aviPath.isVideoFileName, true);
+      expect(wmvPath.isVideoFileName, true);
+      expect(rmvbPath.isVideoFileName, true);
+      expect(mpgPath.isVideoFileName, true);
+      expect(mpegPath.isVideoFileName, true);
+      expect(threegpPath.isVideoFileName, true);
+      expect(svgPath.isAudioFileName, false);
+    });
+  });
 }