Cape Town | 25-ITP-May | Asanda Dunn | Sprint 3 | Sprint-3/2-practice-tdd/

Sprint-3/2-practice-tdd/count.js

@@ -1,5 +1,12 @@
 function countChar(stringOfCharacters, findCharacter) {
-  return 5
+  let count = 0;
+
+  for (let char of stringOfCharacters) {
+    if (char === findCharacter) {
+      count++;
+    }
+  }
+  return count;
 }
 
 module.exports = countChar;

Sprint-3/2-practice-tdd/count.test.js

@@ -17,7 +17,14 @@ test("should count multiple occurrences of a character", () => {
   expect(count).toEqual(5);
 });
 
-// Scenario: No Occurrences
+//Scenario: No Occurrences
+test("should return 0 when the character does not exist in the string", () => {
+  const str = "hello";
+  const char = "z";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
+
 // Given the input string `str`,
 // And a character `char` that does not exist within `str`.
 // When the function is called with these inputs,

Sprint-3/2-practice-tdd/get-ordinal-number.js

@@ -1,5 +1,21 @@
 function getOrdinalNumber(num) {
-  return "1st";
-}
+      let lastDigit = num % 10;
+      let lastTwoDigits = num % 100;
+      if (lastTwoDigits === 11 || lastTwoDigits === 12 || lastTwoDigits === 13) {
+    return `${num}th`;
+  }
+    if (lastDigit === 1) {
+    return `${num}st`;
+  } 
+  else if (lastDigit === 2) {
+    return `${num}nd`;
+  } 
+  else if (lastDigit === 3) {
+    return `${num}rd`;
+  } 
+  else {
+    return `${num}th`;
+  }
+  }
 
 module.exports = getOrdinalNumber;

Sprint-3/2-practice-tdd/get-ordinal-number.test.js

@@ -18,3 +18,12 @@ test("should append 'st' for numbers ending with 1, except those ending with 11"
   expect(getOrdinalNumber(21)).toEqual("21st");
   expect(getOrdinalNumber(131)).toEqual("131st");
 });
+test("converts 1 to an ordinal number",  () => {
+  expect(getOrdinalNumber(1)).toEqual("1st");
+  expect(getOrdinalNumber(11)).toEqual("11th");
+});
+test("converts numbers to ordinal number",  () => {
+  expect(getOrdinalNumber(21)).toEqual("21st");
+  expect(getOrdinalNumber(33)).toEqual("33rd");
+  expect(getOrdinalNumber(13)).toEqual("13th");
+});

Sprint-3/2-practice-tdd/repeat-str.js

@@ -1,7 +1,13 @@
-function repeatStr() {
+function repeatStr(str, count) {
+  let result = "";
+  for (let i =0; i<count;i++){
+    result +=str;
+  }
+
   // Your implementation of this function must *not* call String.prototype.repeat (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat).
   // The goal is to re-implement that function, not to use it.
-  return "hellohellohello";
+  return result;
 }
+console.log(repeatStr("hello",3))
 
 module.exports = repeatStr;

Sprint-3/2-practice-tdd/repeat-str.test.js

@@ -20,13 +20,35 @@ test("should repeat the string count times", () => {
 // Given a target string `str` and a `count` equal to 1,
 // When the repeatStr function is called with these inputs,
 // Then it should return the original `str` without repetition.
+// Case: handle count of 1:
+test("should return the original string unchanged when count is 1", () => {
+  const str = "apple";
+  const count = 1;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("apple");
+});
+
 
 // Case: Handle count of 0:
 // Given a target string `str` and a `count` equal to 0,
 // When the repeatStr function is called with these inputs,
 // Then it should return an empty string.
 
+test("should return an empty string when count is 0", () => {
+  const str = "world";
+  const count = 0;
+  const repeatedStr = repeatStr(str, count);
+  expect(repeatedStr).toEqual("");
+});
+
 // Case: Handle negative count:
 // Given a target string `str` and a negative integer `count`,
 // When the repeatStr function is called with these inputs,
 // Then it should throw an error, as negative counts are not valid.
+
+test("should throw an error when count is a negative integer", () => {
+  const str = "test";
+  const count = -5;
+  expect(() => repeatStr(str, count)).toThrow();
+});
+