In a certain scenario, I am initializing some variables in the controller's $onInit method. How can I verify that these properties are being set correctly?
Controller
ctrl.$onInit = function () {
ctrl.devices = _.cloneDeep(ctrl.formDevices);
};
Unit test
it('should ensure that device related properties are accessible in the view', function () {
expect(controller.devices).toBeDefined();
};
Output
It is important to remember to explicitly invoke the $onInit function in your code. Unlike some other lifecycle hooks, $componentController does not automatically trigger this function during initialization.
However, there are ways to implicitly call $onInit, which can be explored further here.
To ensure that your $onInit function correctly sets properties, a simple way is to manually call $onInit in your testing. Remember, the focus should be on testing the functionality of the $onInit function itself rather than AngularJS lifecycle hooks.
it('should expose device related properties to view', function () {
controller.$onInit();
expect(controller.devices).toBeDefined();
};
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