Sprint 3 implement functions and tests

Author: MacDonald91

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

@@ -16,6 +16,20 @@
 
 function getAngleType(angle) {
   // TODO: Implement this function
+
+  if (angle > 0 && angle < 90) {
+    return "Acute angle";
+  } else if (angle === 90) {
+    return "Right 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";
+  } else {
+    return "Invalid angle";
+  }
 }
 
 // The line below allows us to load the getAngleType function into tests in other files.
@@ -35,3 +49,29 @@ function assertEquals(actualOutput, targetOutput) {
 // Example: Identify Right Angles
 const right = getAngleType(90);
 assertEquals(right, "Right angle");
+
+// Acute angle test
+const acute = getAngleType(45);
+assertEquals(acute, "Acute angle");
+
+// Obtuse angle test
+const obtuse = getAngleType(120);
+assertEquals(obtuse, "Obtuse angle");
+
+// Straight angle test
+const straight = getAngleType(180);
+assertEquals(straight, "Straight angle");
+
+// Reflex angle test
+const reflex = getAngleType(270);
+assertEquals(reflex, "Reflex angle");
+
+// Boundary tests
+assertEquals(getAngleType(1), "Acute angle");
+assertEquals(getAngleType(359), "Reflex angle");
+
+// Invalid angle tests
+assertEquals(getAngleType(0), "Invalid angle");
+assertEquals(getAngleType(360), "Invalid angle");
+assertEquals(getAngleType(-10), "Invalid angle");
+assertEquals(getAngleType(500), "Invalid angle");

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

@@ -12,6 +12,16 @@
 
 function isProperFraction(numerator, denominator) {
   // TODO: Implement this function
+
+  if (denominator === 0) {
+    return false;
+  }
+
+  if (Math.abs(numerator) < Math.abs(denominator)) {
+    return true;
+  }
+
+  return false;
 }
 
 // The line below allows us to load the isProperFraction function into tests in other files.
@@ -31,3 +41,23 @@ function assertEquals(actualOutput, targetOutput) {
 
 // Example: 1/2 is a proper fraction
 assertEquals(isProperFraction(1, 2), true);
+
+// numerator smaller than denominator
+assertEquals(isProperFraction(3, 4), true);
+
+// numerator equal to denominator (not proper)
+assertEquals(isProperFraction(5, 5), false);
+
+// numerator larger than denominator
+assertEquals(isProperFraction(7, 3), false);
+
+// numerator is zero
+assertEquals(isProperFraction(0, 5), true);
+
+// denominator is zero (invalid)
+assertEquals(isProperFraction(1, 0), false);
+
+// negative numbers
+assertEquals(isProperFraction(-1, 2), true);
+assertEquals(isProperFraction(1, -2), true);
+assertEquals(isProperFraction(-3, -2), false);

Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js

@@ -23,6 +23,30 @@
 
 function getCardValue(card) {
   // TODO: Implement this function
+
+  const suits = ["♠", "♥", "♦", "♣"];
+
+  if (typeof card !== "string" || card.length < 2) {
+    throw new Error("Invalid card");
+  }
+
+  const suit = card.slice(-1);
+  const rank = card.slice(0, -1);
+
+  if (!suits.includes(suit)) {
+    throw new Error("Invalid card");
+  }
+
+  if (rank === "A") return 11;
+  if (rank === "J" || rank === "Q" || rank === "K") return 10;
+
+  const numberValue = Number(rank);
+
+  if (numberValue >= 2 && numberValue <= 10) {
+    return numberValue;
+  }
+
+  throw new Error("Invalid card");
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -41,6 +65,18 @@ function assertEquals(actualOutput, targetOutput) {
 // Examples:
 assertEquals(getCardValue("9♠"), 9);
 
+// Ace
+assertEquals(getCardValue("A♠"), 11);
+
+// Face cards
+assertEquals(getCardValue("J♥"), 10);
+assertEquals(getCardValue("Q♦"), 10);
+assertEquals(getCardValue("K♣"), 10);
+
+// Number cards
+assertEquals(getCardValue("2♠"), 2);
+assertEquals(getCardValue("10♥"), 10);
+
 // Handling invalid cards
 try {
   getCardValue("invalid");
@@ -49,4 +85,15 @@ try {
   console.error("Error was not thrown for invalid card");
 } catch (e) {}
 
-// What other invalid card cases can you think of?
+// More invalid cases
+try {
+  getCardValue("11♠");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {}
+
+try {
+  getCardValue("A");
+  console.error("Error was not thrown for invalid card");
+} catch (e) {}
+
+// What other invalid card cases can you think of?