test(omit) : Enhance omit function tests

[sossost]

Description:
Add additional test cases for the omit function to ensure comprehensive coverage

Changes:

1. Add test case to check if all keys are omitted:

• Verifies that the function returns an empty object when all keys are omitted.

it('should return an empty object if all keys are omitted', () => {
  const obj = { a: 1, b: 2, c: 3 };
  const result = omit(obj, ['a', 'b', 'c']);
  expect(result).toEqual({});
});

2. Add test case to check if no keys are omitted:

• Verifies that the function returns the original object when no keys are omitted.

it('should return the same object if no keys are omitted', () => {
  const obj = { a: 1, b: 2, c: 3 };
  const result = omit(obj, []);
  expect(result).toEqual({ a: 1, b: 2, c: 3 });
});

3. Add test case to check that the original object is not mutated:

• Ensures that the function does not modify the original object and returns a new object instead.

it('should not affect the original object', () => {
  const obj = { a: 1, b: 2, c: 3 };
  const result = omit(obj, ['b']);
  expect(result).toEqual({ a: 1, c: 3 });
  expect(obj).toEqual({ a: 1, b: 2, c: 3 });
});

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[raon0211]

Thanks!