How to test Functional Router Guard with Parameter within runInInjectionContext

When working with TypeScript, testing functional router guards with parameters within runInInjectionContext can be a bit challenging. In this blog post, we will explore different solutions to this problem.

Solution 1: Using a Mock Router

One way to test a functional router guard with parameters within runInInjectionContext is by using a mock router. This involves creating a mock router object that mimics the behavior of the actual router.

Here’s an example of how you can implement this solution:

// Mock router object
const mockRouter = {
  navigate: jest.fn(),
  getCurrentNavigation: jest.fn(() => ({
    extras: {
      state: {
        // Mock parameter value
        param: 'example',
      },
    },
  })),
};

// Test case
it('should test functional router guard with parameter', () => {
  const guard = // Your functional router guard implementation

  // Call the guard function with the mock router
  const result = guard(mockRouter);

  // Assert the result
  expect(result).toBe(true);
});

This solution involves creating a mock router object with a mock parameter value. You can then pass this mock router object to your functional router guard implementation and assert the expected result.

Solution 2: Using Dependency Injection

Another approach to testing functional router guards with parameters within runInInjectionContext is by using dependency injection. This involves injecting the parameter value into the guard function during testing.

Here’s an example of how you can implement this solution:

// Test case
it('should test functional router guard with parameter', () => {
  const guard = // Your functional router guard implementation
  const param = 'example'; // Mock parameter value

  // Call the guard function with the parameter value
  const result = guard(param);

  // Assert the result
  expect(result).toBe(true);
});

In this solution, you pass the parameter value directly to the guard function during testing. This allows you to test the guard function with different parameter values and assert the expected result.

Both of these solutions provide a way to test functional router guards with parameters within runInInjectionContext. Choose the solution that best suits your testing needs and implement it accordingly.

That’s it! You now have multiple solutions to test functional router guards with parameters within runInInjectionContext in TypeScript. Happy testing!

How to test Functional Router Guard with Parameter within runInInjectionContext