updated invalid range and description in the get and angle file and reworked negative case in the proper fraction file

Author: Mugs3

implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js

@@ -42,9 +42,10 @@ test(`should return "Reflex angle" when (angle > 180 && angle < 360)`, () => {
 });
 
 // Case 6: Invalid angles
-test(`should return "Invalid angle" when (angle === Invalid)`, () => {
+test(`should return "Invalid angle" when (angle <= 0 or angle >= 360)`, () => {
   // Test various invalid angles, including boundary cases
   expect(getAngleType(361)).toEqual("Invalid angle");
   expect(getAngleType(0)).toEqual("Invalid angle");
   expect(getAngleType(-181)).toEqual("Invalid angle");
+  expect(getAngleType(-1)).toEqual("Invalid angle");
 });

implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js

@@ -18,7 +18,7 @@ test(`should return false when denominator is 2`, () => {
 });
 
 // Special case: numerator is negative number
-test(`should return true when denominator is 1`, () => {
+test(`should return false when the negative numerator's magnitude equals the denominator)`, () => {
   expect(isProperFraction(-1, 1)).toEqual(false);
 });