ITP -Northwest- JAN 2025 | Jan Lo | Module-Structuring-and-Testing-Data Sprint 3 | WEEK 5

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

@@ -9,6 +9,12 @@
 
 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 +50,19 @@ 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"
 // ====> write your test here, and then add a line to pass the test in the function above
+const straight = getAngleType(180);
+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
+// ====> 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

@@ -9,6 +9,11 @@
 
 function isProperFraction(numerator, denominator) {
     if (numerator < denominator) return true;
+    else if (numerator > denominator) return false;
+    else if (-numerator > denominator) return true;
+    else if (numerator === denominator) return false;
+    else return "Error";
+
 }
 
 // here's our helper again
@@ -41,13 +46,14 @@ assertEquals(improperFraction, false);
 // 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?

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

@@ -8,9 +8,22 @@
 // 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 rank = card.slice(0, -1);
+  if (rank === "A") return 11;
+  if (rank === "2") return 2;
+  if (rank === "3") return 3;
+  if (rank === "4") return 4;
+  if (rank === "5") return 5;
+  if (rank === "6") return 6;
+  if (rank === "7") return 7;
+  if (rank === "8") return 8;
+  if (rank === "9") return 9;
+  if(["10", "J", "Q", "K"].includes(rank)) return 10;
+  throw new Error("Invaild 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
@@ -25,27 +38,40 @@ 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♠");
-assertEquals(aceofSpades, 11);
+const aceOfSpades = getCardValue("A♠");
+assertEquals(aceOfSpades, 11);
 
 // Handle Number Cards (2-10):
 // Given a card with a rank between "2" and "9",
 // 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♥");
+const fiveOfHearts = getCardValue("5♥");
 // ====> write your test here, and then add a line to pass the test in the function above
-
+assertEquals(fiveOfHearts, 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 jackOfSpades = getCardValue("J♠");
+assertEquals(jackOfSpades, 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.
 
+
 // Handle Invalid Cards:
-// Given a card with an invalid rank (neither a number nor a recognized face card),
+// Given a card with an invalid rank (neither a number or a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+try {
+  const invaildCard = getCardValue("222");
+  assertEquals(invaildCard, "Invalid card rank");
+  }
+  catch (error) {
+    assertEquals(error.message, "Invaild card rank");
+
+  }
+
+
+

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

@@ -1,6 +1,11 @@
 function getAngleType(angle) {
   if (angle === 90) return "Right angle";
   // replace with your completed function from key-implement
+  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";
+  return "Invalid angle"; 
 
 }
 

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

@@ -10,15 +10,26 @@ test("should identify right angle (90°)", () => {
 // 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 (less than 90°)", () => {
+  expect(getAngleType(45)).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 (greater than 90° and less than 180°)", () => {
+  expect(getAngleType(135)).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 (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 (greater than 180° and less than 360°)", () => {
+  expect(getAngleType(270)).toEqual("Reflex angle");
+});

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

@@ -1,6 +1,10 @@
 function isProperFraction(numerator, denominator) {
     if (numerator < denominator) return true;
     // add your completed function from key-implement here
+    if (numerator > denominator) return false;
+    if (-numerator > denominator) return true;
+    if (numerator === denominator) return false;
+    else return "Error";
 }
 
 module.exports = isProperFraction;

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

@@ -5,7 +5,28 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
+test("should return false for an improper fraction", () => {
+  expect(isProperFraction(4, 3)).toEqual(false);
+  expect(isProperFraction(3, 3)).toEqual(false);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return true for a proper fraction with negative numerator", () => {
+  expect(isProperFraction(-2, 3)).toEqual(true);
+});
+
+test("should return false for an improper fraction with negative numerator", () => {
+  expect(isProperFraction(-4, 3)).toEqual(false);
+});
 
+test("should return true for a proper fraction with negative denominator", () => {
+  expect(isProperFraction(2, -3)).toEqual(true);
+});
+
+test("should return false for an improper fraction with negative denominator", () => {
+  expect(isProperFraction(4, -3)).toEqual(false);
+});
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false for equal numerator and denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});

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

@@ -1,5 +1,23 @@
 function getCardValue(card) {
     // replace with your code from key-implement
-    return 11;
+    const value = card.slice(0, -1);
+    const rank = value.toString();
+    if (rank === "A") return 11;
+    if (rank === "2") return 2;
+    if (rank === "3") return 3;
+    if (rank === "4") return 4;
+    if (rank === "5") return 5;
+    if (rank === "6") return 6;
+    if (rank === "7") return 7;
+    if (rank === "8") return 8;
+    if (rank === "9") return 9;
+    if(["10", "J", "Q", "K"].includes(rank)) return 10;
+    throw new Error("Invalid card rank")
 }
-module.exports = getCardValue;
+module.exports = getCardValue;
+
+// console.log(getCardValue("A♠"));
+// console.log(getCardValue("5♠"));
+// console.log(getCardValue("10♠"));
+// console.log(getCardValue("J♠"));
+// console.log(getCardValue("11"));

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

@@ -6,6 +6,34 @@ test("should return 11 for Ace of Spades", () => {
     });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return the correct value for number cards", () => {
+    expect(getCardValue("2♠")).toEqual(2);
+    expect(getCardValue("5♠")).toEqual(5);
+    expect(getCardValue("10♠")).toEqual(10);
+  });
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return 10 for face cards", () => {
+    expect(getCardValue("J♠")).toEqual(10);
+    expect(getCardValue("Q♠")).toEqual(10);
+    expect(getCardValue("K♠")).toEqual(10);
+  });
+
 // Case 4: Handle Ace (A):
+test("should return 11 for Ace", () => {
+    expect(getCardValue("A♠")).toEqual(11);
+    expect(getCardValue("A♥")).toEqual(11);
+    expect(getCardValue("A♦")).toEqual(11);
+    expect(getCardValue("A♣")).toEqual(11);
+  });
 // Case 5: Handle Invalid Cards:
+// test("should throw an error for invalid cards", () => {
+//     expect(getCardValue("1♠")).toThrow("Invalid card rank");
+//     expect(getCardValue("Z♠")).toThrow("Invalid card rank");
+//     expect(getCardValue("")).toThrow("Invalid card rank");
+//   });
+
+test("should throw an error for invalid cards", () => {
+    expect(() => getCardValue("1♠")).toThrow("Invalid card rank");
+    expect(() => getCardValue("Z♠")).toThrow("Invalid card rank");
+    expect(() => getCardValue("")).toThrow("Invalid card rank");
+  });

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

@@ -1,5 +1,10 @@
 function countChar(stringOfCharacters, findCharacter) {
-    return 5
-}
-
+    let count = 0;
+    for (let char of stringOfCharacters) {
+      if (char === findCharacter) {
+        count++;
+      }
+    }
+    return count;
+  }
 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 return 0 when the character does not exist in the string", () => {
+  const str = "hello";
+  const char = "s";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});

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

@@ -1,5 +1,14 @@
 function getOrdinalNumber(num) {
- return "1st";
+if (num === 11 || num ===12 || num ===13) return num + "th";
+const lastDigit = num % 10;
+if (lastDigit === 1) return num + "st";
+else if (lastDigit === 2) return num + "nd";
+else if (lastDigit === 3) return num + "rd";
+else return num + "th";
 }
 
+
+
+
+
 module.exports = getOrdinalNumber;

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

@@ -11,3 +11,30 @@ 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 '4th' for 4", () => {
+    expect(getOrdinalNumber(4)).toEqual("4th");
+    });
+test("should return '11th' for 11", () => {
+    expect(getOrdinalNumber(11)).toEqual("11th");
+    });
+test("should return '12th' for 12", () => {
+     expect(getOrdinalNumber(12)).toEqual("12th");
+    });
+test("should return '13th' for 13", () => {
+    expect(getOrdinalNumber(13)).toEqual("13th");
+    });
+test("should return '21st' for 21", () => {
+    expect(getOrdinalNumber(21)).toEqual("21st");
+    });
+test("should return '22nd' for 22", () => {
+     expect(getOrdinalNumber(22)).toEqual("22nd");
+    });
+test("should return '23rd' for 23", () => {
+    expect(getOrdinalNumber(23)).toEqual("23rd");
+     });

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

@@ -1,5 +1,7 @@
-function repeat() {
-    return "hellohellohello";
+function repeat(str, count) {
+    if (count < 0) throw new Error("Error");
+    return str.repeat(count);
+
 }
 
 module.exports = repeat;

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

@@ -20,13 +20,31 @@ test("should repeat the string count times", () => {
 // 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 repeat the string count times", () => {
+    const str = "bye";
+    const count = 1;
+    const repeatedStr = repeat(str, count);
+    expect(repeatedStr).toEqual("bye");
+});
 
 // 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 repeat the string count times", () => {
+    const str = "bye";
+    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 throw an error for negative count", () => {
+    const str = "bye";
+    const count = -1;
+    expect(() => repeat(str, count)).toThrow("Error");
+  });