SA|ITP MAY 2025|INNOCENT NIWATWINE| Structuring and Data Testing| Sprint 3

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

@@ -11,6 +11,14 @@ function getAngleType(angle) {
    if (angle === 90) return "Right angle";
    // read to the end, complete line 36, then pass your test here
 }
+function getAngleType(angle) {
+  if (angle === 90) return "Right angle";
+  if (angle < 90) return "Acute angle";
+  if (angle > 90 && angle < 180) return "Obtuse angle";
+  if (angle === 180) return "Straight angle";
+  if (angle > 180 && angle < 360) return "Reflex angle";
+  else if (angle > 180 && angle < 360) return "Reflex angle";
+}
 
 // we're going to use this helper function to make our assertions easier to read
 // if the actual output matches the target output, the test will pass
@@ -53,4 +61,6 @@ const obtuse = getAngleType(120);
 // 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
+// ====> write your test here, and then add a line to pass the test in the function above
+const reflex = getAngleType(270);
+assertEquals(reflex, "Reflex angle");

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

@@ -8,8 +8,15 @@
 // 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 < denominator) {
+  return true;
+} else if (numerator >= denominator) {
+  return false;
+} else if (numerator === 1) {
+  return true;
 }
+}
+
 
 // here's our helper again
 function assertEquals(actualOutput, targetOutput) {
@@ -39,15 +46,19 @@ assertEquals(improperFraction, false);
 // Input: numerator = -4, denominator = 7
 // 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?
+const unitFraction = isProperFraction(1, 9);
+assertEquals(unitFraction, true);

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

@@ -8,9 +8,16 @@
 // 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;
+  const faceCards = ["10", "J", "Q", "K"];
+  const rank = card.slice(0, -1);
+  if (rank === "A") return 11;
+  if (!isNaN(rank) && Number(rank) >= 2 && Number(rank) <= 9)
+    return Number(rank);
+  if (faceCards.includes(rank)) return 10;
+  throw new Error("Invalid card 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
 // if the actual output matches the target output, the test will pass
@@ -25,7 +32,7 @@ function assertEquals(actualOutput, targetOutput) {
 // Given a card string in the format "A♠" (representing a card in blackjack - the last character will always be an emoji for a suit, and all characters before will be a number 2-10, or one letter of J, Q, K, A),
 // When the function getCardValue is called with this card string as input,
 // Then it should return the numerical card value
-const aceofSpades = getCardValue("A♠");
+const numberCards = getCardValue("5♣");
 assertEquals(aceofSpades, 11);
 
 // Handle Number Cards (2-10):
@@ -34,18 +41,25 @@ assertEquals(aceofSpades, 11);
 // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
 const fiveofHearts = getCardValue("5♥");
 // ====> write your test here, and then add a line to pass the test in the function above
-
+assertEquals(numberCards, 5);
 // 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 faceCards = getCardValue("Q♥");
+assertEquals(faceCards, 10);
 // Handle Ace (A):
 // Given a card with a rank of "A",
 // When the function is called with an Ace,
 // Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack.
-
+const ace = getCardValue("A♠");
+assertEquals(ace, 11);
 // Handle Invalid Cards:
 // 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."
+try {
+  getCardValue("sevenofclubs");
+} catch (error) {
+  assertEquals(error.message, "Invalid card rank");
+}

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

@@ -1,6 +1,14 @@
 function getAngleType(angle) {
   if (angle === 90) return "Right angle";
   // replace with your completed function from key-implement
+  if (angle === 90) return "Right angle";
+  if (angle < 90) return "Acute angle";
+  if (angle > 90 && angle < 180) return "Obtuse angle";
+  if (angle === 180) return "Straight angle";
+  if (angle > 180 && angle < 360) return "Reflex angle";
+  else if (angle > 180 && angle < 360) return "Reflex angle";
+
+  return "Revolution"; 
 
 }
 
@@ -11,6 +19,7 @@ function getAngleType(angle) {
 
 
 
+
 // Don't get bogged down in this detail
 // Jest uses CommonJS module syntax by default as it's quite old
 // We will upgrade our approach to ES6 modules in the next course module, so for now 

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

@@ -6,6 +6,9 @@ test("should identify right angle (90°)", () => {
 
 // REPLACE the comments with the tests
 // make your test descriptions as clear and readable as possible
+test("should identify acute angle (less than 90°)", () => {
+  expect(getAngleType(70)).toEqual("Acute angle");
+});
 
 // Case 2: Identify Acute Angles:
 // When the angle is less than 90 degrees,
@@ -14,11 +17,23 @@ test("should identify right angle (90°)", () => {
 // 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 indentify obtuse angle (greater than 90°)", () => {
+  expect(getAngleType(120)).toEqual("Obtuse angle");
+});
+
+
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
 
+test("should indentify straight angle (180°)", () => {
+  expect(getAngleType(120)).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 indentify reflex angle (greater than 180°)", () => {
+  expect(getAngleType(260)).toEqual("Reflex Angle");
+});

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

@@ -1,5 +1,7 @@
 function isProperFraction(numerator, denominator) {
     if (numerator < denominator) return true;
+  // add your completed function from key-implement here
+  if (numerator >= denominator) return false;
     // add your completed function from key-implement here
 }
 

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

@@ -5,7 +5,17 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
-
+test("should return false for a improper fraction", () => {
+  expect(isProperFraction(5, 2)).toEqual(false);
+});
 // Case 3: Identify Negative Fractions:
 
+test("should return true for a negative fraction", () => {
+  expect(isProperFraction(-4, 7)).toEqual(true);
+});
+
 // Case 4: Identify Equal Numerator and Denominator:
+
+test("should return true for a equal fraction", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});

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

@@ -1,5 +1,10 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
+    const faceCards = ["10", "J", "Q", "K"];
+  const rank = card.slice(0, -1);
+  if (rank === "A") return 11;
+  if (!isNaN(rank) && Number(rank) >= 2 && Number(rank) <= 9)
+    return Number(rank);
+  if (faceCards.includes(rank)) return 10;
+  throw new Error("Invalid card rank"); 
 }
 module.exports = getCardValue;

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

@@ -1,11 +1,28 @@
 const getCardValue = require("./3-get-card-value");
 
-test("should return 11 for Ace of Spades", () => {
-    const aceofSpades = getCardValue("A♠");
-    expect(aceofSpades).toEqual(11);
-    });
+const aceofSpades = getCardValue("A♠");
+expect(aceofSpades).toEqual(11);
+});
 
 // Case 2: Handle Number Cards (2-10):
+test("should return the number value of Number cards", () => {
+    const numberCards = getCardValue("3♦");
+    expect(numberCards).toEqual(3);
+  });
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return 10 for Face cards", () => {
+    const faceCards = getCardValue("Q♣");
+    expect(faceCards).toEqual(10);
+  });
+
 // Case 4: Handle Ace (A):
+test("should return 11 for Ace cards", () => {
+    const aceCards = getCardValue("A♣");
+    expect(aceCards).toEqual(11);
+  });
 // Case 5: Handle Invalid Cards:
+test("should return Invalid card rank for Invalid cards", () => {
+    expect(() => {
+      getCardValue("Z♥");
+    }).toThrow("Invalid card rank");
+  });

Sprint-3/3-mandatory-practice/implement/count.js

@@ -1,5 +1,5 @@
 function countChar(stringOfCharacters, findCharacter) {
-    return 5
+    return stringOfCharacters.split(findCharacter).length - 1;
 }
 
 module.exports = countChar;

Sprint-3/3-mandatory-practice/implement/count.test.js

@@ -22,3 +22,9 @@ test("should count multiple occurrences of a character", () => {
 // And a character char that does not exist within the case-sensitive str,
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of the char were found in the case-sensitive str.
+test("should count no occurences of a character", () => {
+  const str = "shannon";
+  const char = "e";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});

Sprint-3/3-mandatory-practice/implement/get-ordinal-number.js

@@ -1,5 +1,17 @@
 function getOrdinalNumber(num) {
- return "1st";
-}
+    const lastDigits = num % 10;
+    const lastTwoDigits = num % 100;
+
+    if (lastTwoDigits >= 11 && lastTwoDigits <= 13) return num + "th";
+    if (lastDigits === 1) {
+      return num + "st";
+    } else if (lastDigits === 2) {
+      return num + "nd";
+    } else if (lastDigits === 3) {
+      return num + "rd";
+    } else {
+      return num + "th";
+    }
+}  
 
 module.exports = getOrdinalNumber;

Sprint-3/3-mandatory-practice/implement/get-ordinal-number.test.js

@@ -10,4 +10,24 @@ const getOrdinalNumber = require("./get-ordinal-number");
 
 test("should return '1st' for 1", () => {
     expect(getOrdinalNumber(1)).toEqual("1st");
-    });
+});
+
+test("should return '2nd' for 2", () => {
+  expect(getOrdinalNumber(2)).toEqual("2nd");
+});
+
+test("should return '3rd' for 3", () => {
+  expect(getOrdinalNumber(3)).toEqual("3rd");
+});
+
+test("should return 11th for 11", () => {
+  expect(getOrdinalNumber(11)).toEqual("11th");
+});
+
+test("should return 19th for 19", () => {
+  expect(getOrdinalNumber(19)).toEqual("19th");
+});
+
+test("should return 24th for 24", () => {
+  expect(getOrdinalNumber(24)).toEqual("24th");
+});

Sprint-3/3-mandatory-practice/implement/repeat.js

@@ -1,5 +1,9 @@
-function repeat() {
-    return "hellohellohello";
-}
-
+function repeat(str, count) {
+    if (count === 0) return "";
+    if (count < 0) {
+      throw new Error("Not Allowed");
+    } else {
+      return str.repeat(count);
+    }
+  }
 module.exports = repeat;

Sprint-3/3-mandatory-practice/implement/repeat.test.js

@@ -14,19 +14,31 @@ test("should repeat the string count times", () => {
     const count = 3;
     const repeatedStr = repeat(str, count);
     expect(repeatedStr).toEqual("hellohellohello");
-    });
-
+  });
 // case: handle Count of 1:
 // Given a target string str and a count equal to 1,
 // When the repeat function is called with these inputs,
 // Then it should return the original str without repetition, ensuring that a count of 1 results in no repetition.
-
+test("should return original string", () => {
+    const str = "word";
+    const count = 1;
+    const repeatedStr = repeat(str, count);
+    expect(repeatedStr).toEqual("word");
+  });
 // case: Handle Count of 0:
 // Given a target string str and a count equal to 0,
 // When the repeat function is called with these inputs,
 // Then it should return an empty string, ensuring that a count of 0 results in an empty output.
-
+test("should return empty string ", () => {
+    const str = "shannon";
+    const count = 0;
+    const repeatedStr = repeat(str, count);
+    expect(repeatedStr).toEqual("");
+  });
 // case: Negative Count:
 // Given a target string str and a negative integer count,
 // When the repeat function is called with these inputs,
 // Then it should throw an error or return an appropriate error message, as negative counts are not valid.
+test("should return error", () => {
+    expect(() => repeat("hello", -4)).toThrow("Not Allowed");
+  });