example angular tests

describe("Contract payment controller should", function () {

  var ctrl, scope, gateway, deffer, growl, pageForwarding, stateParams;

  beforeEach(function () {
    module('bss.contract.payments');

    inject(function ($controller, $q, $rootScope) {
      scope = $rootScope.$new();
      deffer = $q.defer();
      gateway = {};
      growl = {};
      pageForwarding = {};
      stateParams = {};

      ctrl = $controller("ContractPaymentsCtrl", {
        contractBillsGateway: gateway,
        growl: growl,
        bssPageForwarding: pageForwarding,
        $scope: scope,
        $stateParams: stateParams
      });
    });
  });

  it("show contract invoices", function () {
    var contractCode = 1111;
    pageForwarding.internal = {contractInvoices: jasmine.createSpy("contractInvoices")};

    ctrl.showContractInvoices(contractCode);

    expect(pageForwarding.internal.contractInvoices).toHaveBeenCalledWith(contractCode);
  });

  it("initialize page", function () {
    gateway.getBillingPlan = jasmine.createSpy("get billing plan").and.returnValue(deffer.promise);
    stateParams.code = "contractCode";
    stateParams.method = "paymentMethod";

    ctrl.init();

    expect(ctrl.contractCode).toBe("contractCode");
    expect(ctrl.paymentMethod).toBe("paymentMethod");

    expect(gateway.getBillingPlan).toHaveBeenCalledWith("contractCode");

    deffer.resolve({customer: "ivan", bills: [{id: "billId"}]});
    scope.$digest();

    expect(ctrl.billingPlan).toEqual({customer: "ivan", bills: [{id: "billId"}]});
    expect(ctrl.bills).toEqual([{id: "billId"}]);
  });

  it("initialize page when contract code is missing", function () {
    growl.warning = jasmine.createSpy("grow warning");
    stateParams.code = undefined;

    ctrl.init();

    expect(growl.warning).toHaveBeenCalled();
  });

  it("initialize page when payment method is missing", function () {
    growl.warning = jasmine.createSpy("grow warning");
    stateParams.method = undefined;

    ctrl.init();

    expect(growl.warning).toHaveBeenCalled();
  });

  it("pay selected bills", function () {
    var selectedBills = [{id: 1111}, {id: 2222}];
    var contractCode = "code";
    var paymentMethod = "CASH";
    var userPaymentCode = "0000";
    gateway.payBills = jasmine.createSpy("pay bills").and.returnValue(deffer.promise);

    ctrl.payBills(selectedBills, contractCode, paymentMethod, userPaymentCode);

    expect(gateway.payBills).toHaveBeenCalledWith([1111, 2222], contractCode, paymentMethod, userPaymentCode);

    deffer.resolve([{id: 1111, payedOn: "dummy date"}, {id: 2222, payedOn: "otherDate"}]);
    scope.$digest();

    expect(selectedBills).toEqual([{id: 1111, payedOn: "dummy date"}, {id: 2222, payedOn: "otherDate"}]);
  });


  it("disable payment when there no bills are selected", function () {
    var paymentCode = "paymentCode";
    var selectedBills = [];

    var disabled = ctrl.paymentIsDisabled(selectedBills, paymentCode);

    expect(disabled).toBeTruthy();
  });

  it("disable payment when paymentCode is not filled", function () {
    var paymentCode = "";
    var selectedBills = [{id: 1111}];

    var disabled = ctrl.paymentIsDisabled(selectedBills, paymentCode);

    expect(disabled).toBeTruthy();
  });

  it("enable payment", function () {
    var paymentCode = "paymentCode";
    var selectedBills = [{id: 1111}];

    var disabled = ctrl.paymentIsDisabled(selectedBills, paymentCode);

    expect(disabled).toBeFalsy();
  });

  it("show payment button", function () {
    var selectedBills = [{id: 1111, status: 'NOT_CHARGED'}, {id: 2222, status: 'NOT_CHARGED'}];

    var buttonIsShown = ctrl.showPaymentBtn(selectedBills);

    expect(buttonIsShown).toBeTruthy();
  });

  it("hide payment button", function () {
    var selectedBills = [{id: 1111, status: 'CHARGED'}, {id: 2222, status: 'CHARGED'}];

    var buttonIsShown = ctrl.showPaymentBtn(selectedBills);

    expect(buttonIsShown).toBeFalsy();
  });

  it("show payment button when no bills are selected", function () {
    var selectedBills = [];

    var buttonIsShown = ctrl.showPaymentBtn(selectedBills);

    expect(buttonIsShown).toBeTruthy();
  });

  it("show reverse button", function () {
    var selectedBills = [{id: 1111, status: 'CHARGED'}, {id: 2222, status: 'CHARGED'}];

    var buttonIsShown = ctrl.showReverseBtn(selectedBills);

    expect(buttonIsShown).toBeTruthy();
  });

  it("hide reverse button", function () {
    var selectedBills = [{id: 1111, status: 'NOT_CHARGED'}, {id: 2222, status: 'NOT_CHARGED'}];

    var buttonIsShown = ctrl.showReverseBtn(selectedBills);

    expect(buttonIsShown).toBeFalsy();
  });

  it("hide reverse button when no bills are selected", function () {
    var selectedBills = [];

    var buttonIsShown = ctrl.showReverseBtn(selectedBills);

    expect(buttonIsShown).toBeFalsy();
  });

  it("reverse payed bills", function () {
    var selectedBills = [{id: 1111, status: 'CHARGED'}, {id: 2222, status: 'CHARGED'}];
    var contractCode = "code";
    var userPaymentCode = "0000";
    gateway.reverseBills = jasmine.createSpy("create invoice").and.returnValue(deffer.promise);

    ctrl.reverseBills(selectedBills, contractCode, userPaymentCode);

    expect(gateway.reverseBills).toHaveBeenCalledWith([1111, 2222], contractCode, userPaymentCode);

    deffer.resolve([{id: 1111, status: "REVERSED"}, {id: 2222, status: "REVERSED"}]);
    scope.$digest();

    expect(selectedBills).toEqual([{id: 1111, status: "REVERSED"}, {id: 2222, status: "REVERSED"}]);
  });

  it("create bank invoice", function () {
    var selectedBills = [{id: 1111}, {id: 2222}];
    var contractCode = "code";
    var userPaymentCode = "0000";
    gateway.createBankInvoice = jasmine.createSpy("create invoice").and.returnValue(deffer.promise);

    ctrl.createBankInvoice(selectedBills, contractCode, userPaymentCode);

    expect(gateway.createBankInvoice).toHaveBeenCalledWith([1111, 2222], contractCode, userPaymentCode);

    deffer.resolve([{id: 1111, status: "INVOICED"}, {id: 2222, status: "INVOICED"}]);
    scope.$digest();

    expect(selectedBills).toEqual([{id: 1111, status: "INVOICED"}, {id: 2222, status: "INVOICED"}]);
  });
})