w15 challenge

2021/w15/README.md

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+# Week 15 challenge
+
+Congratulations! You have inheritted a huge legacy code base, and it is a mess! The naming convention is a total chaos.
+Variables and functions are named in all sorts of ways. Worst of all - even hybrid naming conventions are there.
+
+You and your colleague decide that it cannot stay that way for longer, and everything must be renamed to camel case.
+Your colleague will do the scraping the codebase and collecting all instances of variable & function names.
+Your task is to write a function `fixCase` which, given a variable name, in one of the many cases, always returns it renamed to a proper camel case.
+
+Examples:
+```
+fixCase('one') // returns 'one'
+fixCase('ONE') // returns 'one'
+fixCase('oneTwoThree') // returns 'oneTwoThree'
+fixCase('OneTwoThree') // returns 'oneTwoThree'
+fixCase('one-two-three') // returns 'oneTwoThree'
+fixCase('one_two_three') // returns 'oneTwoThree'
+fixCase('one_Two_three') // returns 'oneTwoThree'
+fixCase('one_two-three') // returns 'oneTwoThree'
+fixCase('one__two__three') // returns 'oneTwoThree'
+fixCase('one--two--three') // returns 'oneTwoThree'
+fixCase('one__two--three') // returns 'oneTwoThree'
+fixCase('ONE_two_THREE') // returns 'oneTwoThree'
+fixCase('ONE_Two--THREE') // returns 'oneTwoThree'
+fixCase('ONE_Two--THREE') // returns 'oneTwoThree'
+```
+
+
+## Upload link
+
+[https://forms.gle/R1ephy3ASZdNG8JKA]
+
+
+## Results
+

2021/w15/solutions/solution.js

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+const fixCase = (input) => {
+  // your code here
+
+  return undefined;
+};
+
+module.exports = fixCase;

2021/w15/test.js

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+const fs = require("fs");
+const path = require("path");
+const spec = require("./test-cases/spec.json");
+const solutions = fs.readdirSync(path.resolve(__dirname, "solutions"));
+
+describe.each(solutions)("%s", (filename) => {
+  const evaluate = require(path.resolve(__dirname, "solutions", filename));
+  test.each([
+    ['one = one', 'one', 'one'],
+    ['ONE = one', 'ONE', 'one'],
+    ['oneTwoThree = oneTwoThree', 'oneTwoThree', 'oneTwoThree'],
+    ['OneTwoThree = oneTwoThree', 'OneTwoThree', 'oneTwoThree'],
+    ['one-two-three = oneTwoThree', 'one-two-three', 'oneTwoThree'],
+    ['one_two_three = oneTwoThree', 'one_two_three', 'oneTwoThree'],
+    ['one_Two_three = oneTwoThree', 'one_Two_three', 'oneTwoThree'],
+    ['one_two-three = oneTwoThree', 'one_two-three', 'oneTwoThree'],
+    ['one__two__three = oneTwoThree', 'one__two__three', 'oneTwoThree'],
+    ['one--two--three = oneTwoThree', 'one--two--three', 'oneTwoThree'],
+    ['one__two--three = oneTwoThree', 'one__two--three', 'oneTwoThree'],
+    ['ONE_two_THREE = oneTwoThree', 'ONE_two_THREE', 'oneTwoThree'],
+    ['ONE_Two--THREE = oneTwoThree', 'ONE_Two--THREE', 'oneTwoThree'],
+    ['ONE_Two--THREE = oneTwoThree', 'ONE_Two--THREE', 'oneTwoThree'],
+  ])("%s", (expr, input, result) => {
+    expect(evaluate(input)).toBe(result);
+  });
+
+  test.each(spec)("spec[%#]", ({ inputs, result }) => {
+    expect(evaluate(...inputs)).toBe(result);
+  });
+});