Update Sprint 3

reduce tasks, add naively passing tests

Author: SallyMcGrath

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

@@ -0,0 +1,56 @@
+// Implement a function getAngleType
+// Build up your function case by case, writing tests as you go
+// The first test and case is written for you. The next case has a test, but no code.
+// Execute this script in your terminal
+// node 1-get-angle-type.js
+// The assertion error will tell you what the expected output is
+// Write the code to pass the test
+// Then, write the next test! :) Go through this process until all the cases are implemented
+
+function getAngleType(angle) {
+   if (angle === 90) return "Right angle";
+   // read to the end, complete line 36, then pass your test here
+}
+
+// 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
+function assertEquals(actualOutput, targetOutput) {
+  console.assert(
+    actualOutput === targetOutput,
+    `Expected ${actualOutput} to equal ${targetOutput}`
+  );
+}
+
+// Acceptance criteria:
+
+// Given an angle in degrees,
+// When the function getAngleType is called with this angle,
+// Then it should:
+
+// Case 1: Identify Right Angles:
+// When the angle is exactly 90 degrees,
+// Then the function should return "Right angle"
+const right = getAngleType(90);
+assertEquals(right, "Right angle");
+
+// Case 2: Identify Acute Angles:
+// When the angle is less than 90 degrees,
+// Then the function should return "Acute angle"
+const acute = getAngleType(45);
+assertEquals(acute, "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"
+const obtuse = getAngleType(120);
+// ====> 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
+
+// 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

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

@@ -1,34 +1,53 @@
-// You wil need to implement a function isProperFraction
-// You need to write assertions for your function to check it works in different cases
-
+// Implement a function isProperFraction
+// Write assertions for your function to check it works in different cases
 // Terms:
 // Fractions: https://www.bbc.co.uk/bitesize/topics/zt9n6g8/articles/zjxpp4j
 // Written here like this: 1/2 == Numerator/Denominator
+// the first test and first case is written for you
+// complete the rest of the tests and cases
+// write one test at a time, and make it pass, build your solution up methodically
+
+function isProperFraction(numerator, denominator) {
+    if (numerator < denominator) return true;
+}
+
+// here's our helper again
+function assertEquals(actualOutput, targetOutput) {
+  console.assert(
+    actualOutput === targetOutput,
+    `Expected ${actualOutput} to equal ${targetOutput}`
+  );
+}
 
 // Acceptance criteria:
 
 // Proper Fraction check:
 // Input: numerator = 2, denominator = 3
 // target output: true
 // Explanation: The fraction 2/3 is a proper fraction, where the numerator is less than the denominator. The function should return true.
+const properFraction = isProperFraction(2, 3);
+assertEquals(properFraction, true);
 
 // Improper Fraction check:
 // Input: numerator = 5, denominator = 2
 // target output: false
 // Explanation: The fraction 5/2 is an improper fraction, where the numerator is greater than or equal to the denominator. The function should return false.
-
-// Zero Denominator check:
-// Input: numerator = 3, denominator = 0
-// No target output: Error (Denominator cannot be zero)
-// Explanation: The function should throw an error when the denominator is zero, as it's not a valid fraction.
+const improperFraction = isProperFraction(5, 2);
+assertEquals(improperFraction, false);
 
 // Negative Fraction check:
 // 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
 
 // 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.
-// These acceptance criteria cover a range of scenarios to ensure that the isProperFraction function handles both proper and improper fractions correctly and handles potential errors such as a zero denominator.
+const equalFraction = isProperFraction(3, 3);
+// ====> complete with your assertion
+
+// Stretch:
+// What other scenarios could you test for?

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

@@ -1,19 +1,39 @@
 // This problem involves playing cards: https://en.wikipedia.org/wiki/Standard_52-card_deck
 
 // You will need to implement a function getCardValue
+// the function takes a single parameter, a string representing a playing card
+// the function should return the numerical value of the card
+// the first test and first case is written for you
+// complete the rest of the tests and cases
+// 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;
+}
 
 // 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
+function assertEquals(actualOutput, targetOutput) {
+  console.assert(
+    actualOutput === targetOutput,
+    `Expected ${actualOutput} to equal ${targetOutput}`
+  );
+}
 // Acceptance criteria:
 
 // 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);
 
 // 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♥");
+// ====> 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",

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

@@ -0,0 +1,18 @@
+function getAngleType(angle) {
+  if (angle === 90) return "Right angle";
+  // replace with your completed function from key-implement
+
+}
+
+
+
+
+
+
+
+
+// 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 
+// we have just written the CommonJS module.exports syntax for you
+module.exports = getAngleType;

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

@@ -1,27 +1,24 @@
-// Implement a function getAngleType
+const getAngleType = require("./1-get-angle-type");
 
-// Acceptance criteria:
+test("should identify right angle (90°)", () => {
+  expect(getAngleType(90)).toEqual("Right angle");
+});
 
-// Given an angle in degrees,
-// When the function getAngleType is called with this angle,
-// Then it should:
+// REPLACE the comments with the tests
+// make your test descriptions as clear and readable as possible
 
-// Identify Right Angles:
-// When the angle is exactly 90 degrees,
-// Then the function should return "Right angle"
-
-// Identify Acute Angles:
+// Case 2: Identify Acute Angles:
 // When the angle is less than 90 degrees,
 // Then the function should return "Acute angle"
 
-// Identify Obtuse Angles:
+// 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"
 
-// Identify Straight Angles:
+// Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
 
-// Identify Reflex Angles:
+// 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"

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

@@ -0,0 +1,6 @@
+function isProperFraction(numerator, denominator) {
+    if (numerator < denominator) return true;
+    // add your completed function from key-implement here
+}
+
+module.exports = isProperFraction;

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

@@ -0,0 +1,11 @@
+const isProperFraction = require("./2-is-proper-fraction");
+
+test("should return true for a proper fraction", () => {
+  expect(isProperFraction(2, 3)).toEqual(true);
+});
+
+// Case 2: Identify Improper Fractions:
+
+// Case 3: Identify Negative Fractions:
+
+// Case 4: Identify Equal Numerator and Denominator:

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

@@ -0,0 +1,5 @@
+function getCardValue(card) {
+    // replace with your code from key-implement
+    return 11;
+}
+module.exports = getCardValue;

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

@@ -0,0 +1,11 @@
+const getCardValue = require("./3-get-card-value");
+
+test("should return 11 for Ace of Spades", () => {
+    const aceofSpades = getCardValue("A♠");
+    expect(aceofSpades).toEqual(11);
+    });
+
+// Case 2: Handle Number Cards (2-10):
+// Case 3: Handle Face Cards (J, Q, K):
+// Case 4: Handle Ace (A):
+// Case 5: Handle Invalid Cards:

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

@@ -0,0 +1,5 @@
+function countChar(stringOfCharacters, findCharacter) {
+    return 5
+}
+
+module.exports = countChar;