London | ITP-may-2026 | Hugh Mills | Sprint 3 | Sprint 3 Coursework - Implement and Rewrite #1515

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

@@ -16,7 +16,28 @@
 
 function getAngleType(angle) {
   // TODO: Implement this function
-}
+  if (angle < 0) {
+    return "Invalid angle"
+  } else if (angle < 90) {
+    return "Acute angle"
+  } else if (angle ===90) {
+    return "Right angle"
+  } else if (angle < 180) {
+    return "Obtuse angle"
+  } else if (angle ===180) {
+    return "Straight angle"
+  } else if (angle < 360) {
+    return "Reflex angle"
+  } else if (angle === 360) {
+    return "Acute angle" 
+  } else if (angle > 360) {
+    return "Invalid angle"
+  }
+
+    }
+
+
+
 
 // The line below allows us to load the getAngleType function into tests in other files.
 // This will be useful in the "rewrite tests with jest" step.
@@ -35,3 +56,11 @@ function assertEquals(actualOutput, targetOutput) {
 // Example: Identify Right Angles
 const right = getAngleType(90);
 assertEquals(right, "Right angle");
+// const right = getAngleType(89);
+// assertEquals(right, "Acute angle");
+// const right = getAngleType(145);
+// assertEquals(right, "Obtuse angle");
+// const right = getAngleType(180);
+// assertEquals(right, "Straight angle");
+// const right = getAngleType(200);
+// assertEquals(right, "Invalid angle");

Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js

@@ -11,9 +11,30 @@
 // execute the code to ensure all tests pass.
 
 function isProperFraction(numerator, denominator) {
-  // TODO: Implement this function
+    if (denominator === 0) { 
+    return false 
+    }
+
+    if (numerator === denominator) {
+    return false
+    }
+
+    if (numerator > denominator) {
+    return false
+    }
+
+    if (numerator < denominator) {
+    return true
+    }  
 }
 
+// function isProperFraction(numerator, denominator) {
+//     if (denominator === 0) { 
+//     return false 
+//   } else if (Math.abs(numerator) < Math.abs(denominator)) {
+//     return true
+//   };
+// }
 // The line below allows us to load the isProperFraction function into tests in other files.
 // This will be useful in the "rewrite tests with jest" step.
 module.exports = isProperFraction;

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

@@ -14,7 +14,33 @@ 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 (angle < 180)', () => {
+  expect(getAngleType(91)).toEqual("Obtuse angle");
+  expect(getAngleType(175)).toEqual("Obtuse angle");
+  expect(getAngleType(135)).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 (angle < 360)', () => {
+  expect(getAngleType(190)).toEqual("Reflex angle");
+  expect(getAngleType(250)).toEqual("Reflex angle");
+  expect(getAngleType(359)).toEqual("Reflex angle");
+});
+
 // Case 6: Invalid angles
+test ('should return "Invalid angle" when (angle > 360)', () => {
+  expect(getAngleType(361)).toEqual("Invalid angle");
+  expect(getAngleType(450)).toEqual("Invalid angle");
+  expect(getAngleType(3854)).toEqual("Invalid angle");
+  expect(getAngleType(-12)).toEqual("Invalid angle");
+});

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js

@@ -8,3 +8,20 @@ const isProperFraction = require("../implement/2-is-proper-fraction");
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+// numerator is higher than denominator
+test(`should return false when numerator is higher value than denominator`, () => {
+  expect(isProperFraction(2, 1)).toEqual(false);
+});
+
+// numerator is lower than denominator
+test(`should return true when numerator is lower value than denominator`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true); 
+  expect(isProperFraction(-1, 2 )).toEqual(true);
+  expect(isProperFraction(0, 2 )).toEqual(true);
+})
+
+// numerator is equal to denominator
+test(`should return false when numerator is equal to denominator`, () => {
+  expect(isProperFraction(1, 1)).toEqual(false);
+});