Manchester | ITP-May-2025 | Chukwuemeke Ajuebor | Module-Structuring-and-Testing-Data | Sprint 3

Sprint-3/1-key-implement/1-get-angle-type.js

@@ -9,6 +9,10 @@
 
 function getAngleType(angle) {
    if (angle === 90) return "Right angle";
+   else if (angle > 0 && angle < 90) return "Acute angle";
+   else if (angle > 90 && angle < 180) return "Obtuse angle";
+   else if (angle === 180) return "Straight angle";
+   else if (angle > 180 && angle < 360) return "Reflex angle";
    // read to the end, complete line 36, then pass your test here
 }
 
@@ -44,13 +48,18 @@ assertEquals(acute, "Acute angle");
 // Then the function should return "Obtuse angle"
 const obtuse = getAngleType(120);
 // ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(obtuse, "Obtuse angle");
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
+const straight = getAngleType(180);
 // ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(straight, "Straight angle");
 
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
-// ====> write your test here, and then add a line to pass the test in the function above
+const reflex = getAngleType(270);
+// ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(reflex, "Reflex angle");

Sprint-3/1-key-implement/2-is-proper-fraction.js

@@ -8,7 +8,14 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
+    if (numerator === 0 && denominator === 0) return "put numbers above and below";
+    //else if (numerator === 0) return "input non-zero above";  -- not needed as numerator can be zero
+    else if (denominator === 0) return "input non-zero below";
+    else if (numerator < denominator) return true;
+    else if (numerator > denominator) return false;
+    else if (numerator === denominator) return false;
+    //else if (numerator === 0 && denominator === 0) return "put numbers above and below";
+    // the above line of code did not work here it had to go to the top as it is a most specific case considering our function.
 }
 
 // here's our helper again
@@ -40,14 +47,41 @@ assertEquals(improperFraction, false);
 // target output: true
 // Explanation: The fraction -4/7 is a proper fraction because the absolute value of the numerator (4) is less than the denominator (7). The function should return true.
 const negativeFraction = isProperFraction(-4, 7);
-// ====> complete with your assertion
+assertEquals(negativeFraction, true);
 
 // Equal Numerator and Denominator check:
 // Input: numerator = 3, denominator = 3
 // target output: false
 // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
 const equalFraction = isProperFraction(3, 3);
-// ====> complete with your assertion
+assertEquals(equalFraction, false);
 
 // Stretch:
 // What other scenarios could you test for?
+// We could test for if the numerator is zero
+
+// Zero Numerator check:
+// Input: numerator = 0, denominator = 3
+// target output: true
+// Explanation: Even though this gives a zero value it still returns true 
+//so we expect it to be true
+/* const zeroNumeratorFraction = isProperFraction(0, 3); 
+assertEquals(zeroNumeratorFraction, "input non-zero above"); */
+// test case commented out as 0/3 is not a mathematical error
+
+
+// Zero Denominator check:
+// Input: numerator = 3, denominator = 0
+// target output: undefined
+// Explanation: This gives an undefined value.
+const zeroDenominatorFraction = isProperFraction(3, 0); 
+assertEquals(zeroDenominatorFraction, "input non-zero below");
+
+// Zero Numerator and Zero Denominator check:
+// Input: numerator = 0, denominator = 0
+// target output: false
+// Explanation: This will outputs false as the operation is practically impossible.
+/* const zeroZeroFraction = isProperFraction(0, 0); 
+assertEquals(zeroZeroFraction, "put numbers above and below"); */
+//we already check for zero denominator and that is enough 
+// as numerator can indeed be zero.

Sprint-3/1-key-implement/3-get-card-value.js

@@ -8,8 +8,19 @@
 // write one test at a time, and make it pass, build your solution up methodically
 // just make one change at a time -- don't rush -- programmers are deep and careful thinkers
 function getCardValue(card) {
-    if (rank === "A") return 11;
-}
+    let rank;
+    if (card.startsWith("10")) {
+      rank = 10;
+    } else {
+      rank = card[0];
+    }
+    if ((card.length > 3) || (card.length === 3 && !(card[0] === "1" && card[1] === "0" && isNaN(card[2]))))
+    return "Invalid card rank";
+    else if (rank === "A") return 11;
+    else if (rank === "K" || rank === "Q" || rank === "J" ) return 10;
+    else if (Number(rank) >= 2 && Number(rank) <= 10) return Number(rank);
+
+  }
 
 // You need to write assertions for your function to check it works in different cases
 // we're going to use this helper function to make our assertions easier to read
@@ -33,12 +44,15 @@ assertEquals(aceofSpades, 11);
 // When the function is called with such a card,
 // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
 const fiveofHearts = getCardValue("5♥");
+assertEquals(fiveofHearts, 5);
 // ====> write your test here, and then add a line to pass the test in the function above
 
 // Handle Face Cards (J, Q, K):
 // Given a card with a rank of "10," "J," "Q," or "K",
 // When the function is called with such a card,
 // Then it should return the value 10, as these cards are worth 10 points each in blackjack.
+const QueenofDiamonds = getCardValue("Q♦");
+assertEquals(QueenofDiamonds, 10);
 
 // Handle Ace (A):
 // Given a card with a rank of "A",
@@ -49,3 +63,9 @@ const fiveofHearts = getCardValue("5♥");
 // Given a card with an invalid rank (neither a number nor a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+const seventySevenofDiamonds = getCardValue("77♦");
+assertEquals(seventySevenofDiamonds, "Invalid card rank");
+
+//Handle cards with value of ten
+const tenOfHearts = getCardValue("10♥");
+assertEquals(tenOfHearts, 10);

Sprint-3/2-mandatory-rewrite/1-get-angle-type.js

@@ -1,6 +1,9 @@
 function getAngleType(angle) {
   if (angle === 90) return "Right angle";
-  // replace with your completed function from key-implement
+  else if (angle > 0 && angle < 90) return "Acute angle";
+  else if (angle > 90 && angle < 180) return "Obtuse angle";
+  else if (angle === 180) return "Straight angle";
+  else if (angle > 180 && angle < 360) return "Reflex angle";
 
 }
 

Sprint-3/2-mandatory-rewrite/1-get-angle-type.test.js

@@ -8,17 +8,21 @@ test("should identify right angle (90°)", () => {
 // make your test descriptions as clear and readable as possible
 
 // Case 2: Identify Acute Angles:
-// When the angle is less than 90 degrees,
-// Then the function should return "Acute angle"
+test("should identify acute angle (where angle < 90°)", () => {
+  expect(getAngleType(40)).toEqual("Acute angle");
+});
 
 // Case 3: Identify Obtuse Angles:
-// When the angle is greater than 90 degrees and less than 180 degrees,
-// Then the function should return "Obtuse angle"
+test("should identify obtuse angle (where angle > 90°)", () => {
+  expect(getAngleType(125)).toEqual("Obtuse angle");
+});
 
 // Case 4: Identify Straight Angles:
-// When the angle is exactly 180 degrees,
-// Then the function should return "Straight angle"
+test("should identify straight angle (where angle = 180°)", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 
 // Case 5: Identify Reflex Angles:
-// When the angle is greater than 180 degrees and less than 360 degrees,
-// Then the function should return "Reflex angle"
+test("should identify reflex angle (where angle > 180°)", () => {
+  expect(getAngleType(225)).toEqual("Reflex angle");
+});

Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.js

@@ -1,6 +1,12 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
+    if (numerator === 0 && denominator === 0) return "put numbers above and below";
+    //else if (numerator === 0) return "input non-zero above";  -- not needed as numerator can be zero
+    else if (denominator === 0) return "input non-zero below";
+    else if (numerator < denominator) return true;
+    else if (numerator > denominator) return false;
+    else if (numerator === denominator) return false;
+    //else if (numerator === 0 && denominator === 0) return "put numbers above and below";
+    // the above line of code did not work here it had to go to the top as it is a most specific case considering our function.
 }
 
 module.exports = isProperFraction;

Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.test.js

@@ -4,8 +4,27 @@ test("should return true for a proper fraction", () => {
   expect(isProperFraction(2, 3)).toEqual(true);
 });
 
+//we can write the functions that we expect to out true using .toBeTruthy()
+test("should return true for a proper fraction", () => {
+  expect(isProperFraction(7, 11)).toBeTruthy();
+});
+
 // Case 2: Identify Improper Fractions:
+test("should return false for an improper fraction", () => {
+  expect(isProperFraction(7, 3)).toEqual(false);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return true for a negative fraction", () => {
+  expect(isProperFraction(-2, 3)).toEqual(true);
+});
+
+//This type of case that outputs true can also use .toBeTruthy()
+test("should return true for a negative fraction", () => {
+  expect(isProperFraction(-4, 9)).toBeTruthy();
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false if numerator and denominator are equal", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});

Sprint-3/2-mandatory-rewrite/3-get-card-value.js

@@ -1,5 +1,14 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
+    let rank;
+    if (card.startsWith("10")) {
+      rank = "10";
+    } else {
+      rank = card[0];
+    }
+    if ((card.length > 3) || (card.length === 3 && !card.startsWith("10")) || (isNaN(rank) && !"AKQJ".includes(rank)) || rank === "0")
+    return "Invalid card rank";
+    else if (rank === "A") return 11;
+    else if (rank === "K" || rank === "Q" || rank === "J" ) return 10;
+    else if (Number(rank) >= 2 && Number(rank) <= 10) return Number(rank);
 }
 module.exports = getCardValue;

Sprint-3/2-mandatory-rewrite/3-get-card-value.test.js

@@ -6,6 +6,43 @@ test("should return 11 for Ace of Spades", () => {
     });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return number value for card 2-10", () => {
+    const sevenofHearts = getCardValue("7♥");
+    expect(sevenofHearts).toEqual(7);
+    });
+
 // Case 3: Handle Face Cards (J, Q, K):
+test(" should return 10 for JQK cards", () => {
+    const kingofDiamonds = getCardValue("K♦");
+    expect(kingofDiamonds).toEqual(10);
+});
+
 // Case 4: Handle Ace (A):
+test(" should return 11 for Ace cards", () => {
+    const aceofSpades = getCardValue("A♠");
+    expect(aceofSpades).toEqual(11);
+});
+
 // Case 5: Handle Invalid Cards:
+test(" should return a message that card is not valid", () => {
+    const ninetynineLove = getCardValue("99♥");
+    expect(ninetynineLove).toEqual("Invalid card rank");
+});
+
+// Case 6: Handle Ten Cards:
+test(" should return 10", () => {
+    const tenOfHearts = getCardValue("10♥");
+    expect(tenOfHearts).toEqual(10);
+});
+
+//Case 7: more invalid cards:
+test(" should return a message that card not valid", () => {
+    const zeroOfHearts = getCardValue("0♥");
+    expect(zeroOfHearts).toEqual("Invalid card rank");
+});
+
+//Case 8: more invalid cards:
+test(" should return a message that card not valid", () => {
+    const xOfHearts = getCardValue("X♥");
+    expect(xOfHearts).toEqual("Invalid card rank");
+});