Passing one of the parameters in constructor to unit test - angularjs

Question

I am trying to get/set "testModel.number" in my unit test but I can't seem to get it. When I run the test I get this error message:
Error: [$injector:unpr] Unknown provider: testModelProvider <- testModel
Here is the controller:
angular.module("TestApp", [])
.controller("IndexController", function ($scope, testModel) {
$scope.name = "test";
testModel = {
number: 0
}
if (testModel.number === 1) {
$scope.name = "test1";
} else {
$scope.name = "test2";
}
});
Here is the unit test:
describe('IndexController', function () {
var scope, createController;
beforeEach(module("TestApp"));
beforeEach(inject(function ($rootScope, $controller, testModel) {
scope = $rootScope.$new();
createController = function () {
return $controller('IndexController', {
'$scope': scope,
'testModel': testModel
})
}
}));
it('example test', function () {
var controller = createController();
testModel.number = 1;
expect(scope.name).toBe('test1');
});
});
I'm fairly new to unit testing so any suggestions would be great! Thanks in advance!

Answer 1

I think you need to pass the testModel object to the method creating the controller. Jasmine does not know how to inject custom providers.
describe('IndexController', function () {
var scope, createController;
beforeEach(module("TestApp"));
beforeEach(inject(function ($rootScope, $controller) {
scope = $rootScope.$new();
createController = function (testModel) {
return $controller('IndexController', {
'$scope': scope,
'testModel': testModel
})
}
}));
it('example test', function () {
var testModel = { number: 1 };
var controller = createController(testModel);
expect(scope.name).toBe('test1');
});
});
If you will have multiple tests that will need the testModel object, you can also define it at a global level as follows:
describe('IndexController', function () {
var scope, createController;
var testModel = { number: 1 };
beforeEach(module("TestApp"));
beforeEach(inject(function ($rootScope, $controller) {
scope = $rootScope.$new();
createController = function () {
return $controller('IndexController', {
'$scope': scope,
'testModel': testModel
})
}
}));
it('example test', function () {
var controller = createController();
expect(scope.name).toBe('test1');
});
});