How to test the knockout.js click binding with jasmine?

@mallory_cormier 

To test the knockout.js click binding with Jasmine, you can follow these steps:

1. Setup your Jasmine test suite and include the necessary dependencies for testing knockout.js bindings.
2. Create a test spec that sets up a mock view model with a click handler function, and a test element with the click binding that triggers the click handler function when clicked.
3. Use Jasmine's spyOn function to spy on the click handler function and ensure that it is called when the test element is clicked.
4. Trigger a click event on the test element and expect the click handler function to have been called.
5. Run the test suite and check that the click binding is working as expected.

Here is an example of how you can test the knockout.js click binding with Jasmine:

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describe('Knockout.js click binding test', function() {
  var viewModel, element;

  beforeEach(function() {
    viewModel = {
      handleClick: function() {
        console.log('Click handler function called');
      }
    };

    element = document.createElement('div');
    element.setAttribute('data-bind', 'click: handleClick');
    document.body.appendChild(element);

    ko.applyBindings(viewModel, element);
  });

  afterEach(function() {
    document.body.removeChild(element);
  });

  it('should call click handler function when element is clicked', function() {
    spyOn(viewModel, 'handleClick');

    element.click();

    expect(viewModel.handleClick).toHaveBeenCalled();
  });
});

This test spec sets up a mock view model with a handleClick function, creates a test element with a click binding that calls the handleClick function, spies on the handleClick function, triggers a click event on the test element, and expects the handleClick function to have been called.

Run this test spec using Jasmine to ensure that the knockout.js click binding is working as expected.