Add tests for angle classification and error handling in getAngleType function

Author: Monsur0001

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js

@@ -14,7 +14,31 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when angle === 90`, () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (90 < angle < 180)`, () => {
+  // Test various obtuse angles, including boundary cases
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+});
 // Case 4: Straight angle
+test(`should return "Straight angle" when angle === 180`, () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (180 < angle < 360)`, () => {
+  // Test various reflex angles, including boundary cases
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(270)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
 // Case 6: Invalid angles
+test(`should throw an error when angle is negative`, () => {
+  expect(() => getAngleType(-1)).toThrow("Invalid angle");
+});
+test(`should throw an error when angle is greater than or equal to 360`, () => {
+  expect(() => getAngleType(360)).toThrow("Invalid angle");
+});