tests: added angle boundary cases

Author: Zadri415

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

@@ -14,7 +14,43 @@ test(`should return "Acute angle" when (0 < angle < 90)`, () => {
 });
 
 // Case 2: Right angle
+test(`should return "Right angle" when angle is exactly 90`, () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
+
 // Case 3: Obtuse angles
+test(`should return "Obtuse angle" when (90 < angle < 180)`, () => {
+  // Representative obtuse values across the range
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(135)).toEqual("Obtuse angle");
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+});
+
 // Case 4: Straight angle
+test(`should return "Straight angle" for 180`, () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
+
+test(`should NOT return "Straight angle" for values just below or above 180`, () => {
+  expect(getAngleType(179.999)).not.toEqual("Straight angle");
+  expect(getAngleType(180.001)).not.toEqual("Straight angle");
+});
+
+test(`should classify 179 as 'Obtuse angle' and 181 as 'Reflex angle'`, () => {
+  expect(getAngleType(179)).toEqual("Obtuse angle");
+  expect(getAngleType(181)).toEqual("Reflex angle");
+});
+
 // Case 5: Reflex angles
+test(`should return "Reflex angle" when (180 < angle < 360)`, () => {
+  // Representative reflex values across the range
+  expect(getAngleType(181)).toEqual("Reflex angle");
+  expect(getAngleType(270)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
+
 // Case 6: Invalid angles
+test(`should return "Invalid angle" for angles < 0 or > 360`, () => {
+  expect(getAngleType(-1)).toEqual("Invalid angle");
+  expect(getAngleType(360)).toEqual("Invalid angle");
+});

package.json

@@ -11,5 +11,8 @@
   "license": "ISC",
   "dependencies": {
     "jest": "^29.7.0"
+  },
+  "devDependencies": {
+    "prettier": "^3.8.3"
   }
-}
+}