Added test cases, in process of fixing code

Author: leigh-ross

Sprint-3/5-stretch-extend/format-time.js

@@ -2,24 +2,61 @@
 // Make sure to do the prep before you do the coursework
 // Your task is to write tests for as many different groups of input data or edge cases as you can, and fix any bugs you find.
 
+// original code:
+// function formatAs12HourClock(time) {
+//   const hours = Number(time.slice(0, 2));
+//   if (hours > 12) {
+//     return `${hours - 12}:00 pm`;
+//   }
+//   return `${time} am`;
+// }
+
+// const currentOutput = formatAs12HourClock("08:00");
+// const targetOutput = "08:00 am";
+// console.assert(
+//   currentOutput === targetOutput,
+//   `current output: ${currentOutput}, target output: ${targetOutput}`
+// );
+
+// const currentOutput2 = formatAs12HourClock("23:00");
+// const targetOutput2 = "11:00 pm";
+// console.assert(
+//   currentOutput2 === targetOutput2,
+//   `current output: ${currentOutput2}, target output: ${targetOutput2}`
+// );
+
+// my code:
 function formatAs12HourClock(time) {
   const hours = Number(time.slice(0, 2));
-  if (hours > 12) {
-    return `${hours - 12}:00 pm`;
+  if (hours >= 12) {
+    return `${hours - 12}:${time.slice(3)} pm`;
   }
-  return `${time} am`;
+  return `${time}:${time.slice(3)} am`;
 }
 
-const currentOutput = formatAs12HourClock("08:00");
-const targetOutput = "08:00 am";
-console.assert(
-  currentOutput === targetOutput,
-  `current output: ${currentOutput}, target output: ${targetOutput}`
-);
+const cases = [
+  { input: "00:00", expected: "12:00 am" },  // midnight
+  { input: "01:00", expected: "01:00 am" },
+  { input: "02:00", expected: "02:00 am" },  // your failing test
+  { input: "09:00", expected: "09:00 am" },
+  { input: "11:59", expected: "11:59 am" },
+  { input: "12:00", expected: "12:00 pm" },  // noon
+  { input: "12:30", expected: "12:30 pm" },
+  { input: "13:00", expected: "01:00 pm" },
+  { input: "23:00", expected: "11:00 pm" },  // your other test
+  { input: "23:59", expected: "11:59 pm" },
+];
 
-const currentOutput2 = formatAs12HourClock("23:00");
-const targetOutput2 = "11:00 pm";
-console.assert(
-  currentOutput2 === targetOutput2,
-  `current output: ${currentOutput2}, target output: ${targetOutput2}`
-);
+function runTests(cases) {
+  let passed = 0;
+  for (const { input, expected } of cases) {
+    const actual = formatAs12HourClock(input);
+    const ok = actual === expected;
+    if (ok) passed++;
+    console.log(
+      `${ok ? "PASS" : "FAIL"}  input: ${input}  expected: ${expected}  actual: ${actual}`
+    );
+  }
+  console.log(`\n${passed}/${cases.length} passed`);
+}
+runTests(cases);