feat: refactor and test tools steps utilities (#42693)

tools/challenge-helper-scripts/helpers/get-arg-values.test.js

@@ -0,0 +1,34 @@
+const { getArgValues } = require('./get-arg-values');
+
+describe('getArgValues helper', () => {
+  it('should be able to run if there are no values to process', () => {
+    const args = ['/Path/to/node', '/Path/to/script'];
+    expect(getArgValues(args)).toEqual({});
+    expect(getArgValues()).toEqual({});
+  });
+
+  it('should parse the third element (key/value) if provided', () => {
+    const args = ['/Path/to/node', '/Path/to/script', 'num=4'];
+    expect(getArgValues(args)).toEqual({ num: '4' });
+  });
+
+  it('should parse multiple arguments (key/value) if provided', () => {
+    const args = ['/Path/to/node', '/Path/to/script', 'num=4', 'another=5'];
+    expect(getArgValues(args)).toEqual({ another: '5', num: '4' });
+  });
+
+  it('should parse the arguments with spaces (key/value) if provided', () => {
+    const args = ['/Path/to/node', '/Path/to/script', 'num = 3'];
+    expect(getArgValues(args)).toEqual({ num: '3' });
+  });
+
+  it('should throw error on invalid key/value arguments', () => {
+    const items = [
+      ['/Path/to/node', '/Path/to/script', 'num='],
+      ['/Path/to/node', '/Path/to/script', '='],
+      ['/Path/to/node', '/Path/to/script', 'num=2', '= 3']
+    ];
+
+    items.forEach(item => expect(() => getArgValues(item)).toThrow());
+  });
+});