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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,19 @@ function getAngleType(angle) {
if (angle === 90) {
return "Right angle";
}
else if (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"
}

// Run the tests, work out what Case 2 is testing, and implement the required code here.
// Then keep going for the other cases, one at a time.
}
Expand Down Expand Up @@ -50,14 +63,19 @@ assertEquals(acute, "Acute angle");
// When the angle is greater than 90 degrees and less than 180 degrees,
// Then the function should return "Obtuse angle"
const obtuse = getAngleType(120);
assertEquals(obtuse,"Obtuse angle");
// ====> write your test here, and then add a line to pass the test in the function above

// 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(190);
assertEquals(reflex, "Reflex angle" );
Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,12 @@
// write one test at a time, and make it pass, build your solution up methodically

function isProperFraction(numerator, denominator) {
if (numerator < denominator) {
if (Math.abs(numerator) < Math.abs(denominator)) {

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Here you are using a common pattern of code:

if (some expression) {
return true
} else {
return false
}

This can be simplified into a single line. Can you see how to do that?

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Thanks. I have changet to line: return (Math.abs(numerator) < Math.abs(denominator))

return true;
}
else {
return false;
}
}

// The line below allows us to load the isProperFraction function into tests in other files.
Expand Down Expand Up @@ -46,14 +49,21 @@ 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);
assertEquals(negativeFraction,true)
// ====> complete with your assertion

// 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);
assertEquals(equalFraction,false);
// ====> complete with your assertion

// Stretch:
// What other scenarios could you test for?
const bothNegativeProperFraction = isProperFraction(-3, -5);
assertEquals(bothNegativeProperFraction,true);
//
const bothNegativeNotProperFraction = isProperFraction(-6, -5);
assertEquals(bothNegativeNotProperFraction,false);
Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,21 @@
// 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) {
let rank = card.slice(0, card.length-1)
if (rank === "A") {
return 11;
}
else if (parseInt(rank) >= 2 && parseInt(rank)){
return parseInt(rank)
}
else if( rank === "J" || rank === "Q" || rank === "K") {
return 10;
}
else{
throw new Error("Invalid card rank.")
}


}

// The line below allows us to load the getCardValue function into tests in other files.
Expand Down Expand Up @@ -39,19 +51,35 @@ 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 cardOfJ = getCardValue("J♥");
assertEquals(cardOfJ, 10);
const cardOfQ = getCardValue("Q♠");
assertEquals(cardOfQ, 10);
const cardOfK = getCardValue("K♠");
assertEquals(cardOfK, 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 aceOfHeart = getCardValue("A♥");
assertEquals(aceOfHeart, 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 {
assertEquals(getCardValue("W♥"), "Invalid card rank");
} catch (error) {
console.log(error.message);
}
Original file line number Diff line number Diff line change
Expand Up @@ -12,15 +12,28 @@ 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 then 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 then 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 identify Straight angle that = 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 then 180 and less then 360", () => {
expect(getAngleType(220)).toEqual("Reflex angle");
});
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,16 @@ test("should return true for a proper fraction", () => {
});

// Case 2: Identify Improper Fractions:
test("should return false for improper fraction", () => {
expect(isProperFraction(5, 2)).toEqual(false);
});

// Case 3: Identify Negative Fractions:
test("should return true for negative fraction", () => {
expect(isProperFraction(-4, 7)).toEqual(true);
});

// Case 4: Identify Equal Numerator and Denominator:
test("should return false for Equal Numerator fraction", () => {
expect(isProperFraction(3, 3)).toEqual(false);
});
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,28 @@ test("should return 11 for Ace of Spades", () => {
});

// Case 2: Handle Number Cards (2-10):
test("Handle Number Cards (2-10)", () => {
const fiveofHearts = getCardValue("5♥");
expect(fiveofHearts).toEqual(5);
});
// Case 3: Handle Face Cards (J, Q, K):
test("Case 3: Handle Face Cards (J, Q, K)", () => {
const cardOfJ = getCardValue("J♥");
expect(cardOfJ).toEqual(10);
});
// Case 4: Handle Ace (A):
test("Case 3: Handle Face Cards (J, Q, K)", () => {
const aceOfHeart = getCardValue("A♥");
expect(aceOfHeart).toEqual(11);
});
// Case 5: Handle Invalid Cards:
test("Case 3: Handle Invalid Cards", () => {
try {
assertEquals(getCardValue("W♥"), "Invalid card rank");
} catch (error) {
console.log(error.message);

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Looking at the jest documentation, can you see any expect() options that would let you test for exceptions?

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Thanks, I have changed to expect(() => { getCardValue("21♠") }).toThrow("Invalid card rank.");

}
});



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