Question

我正在尝试从angularjs控制器测试一个函数。

注射部分：

var $scope, $controller;

beforeEach(module('sigfoxSDISApp'));
beforeEach(inject(function(_$controller_, $rootScope, _$log_, _$translate_, _DeviceService_, _$filter_, _translatableIndexFilter_){
    $controller = _$controller_;
    $scope = $rootScope.$new();
    $controller =  $controller('AcquitModalCtrl', {
        $scope: $scope,
        $log: _$log_,
        $translate: _$translate_,
        DeviceService: _DeviceService_,
        $filter_: _$filter_,
        translatableIndexFilter: _translatableIndexFilter_
    });
}));

测试：

describe('$scope.getReport', function(){
    this.success = 0;
    this.errors = 0;

    it('returns an object with a type, a title and a report', function(){
        var result = $scope.getReport(this.success, this.errors);
        expect(result.type).toBeDefined();
        expect(result.title).toBeDefined();
        expect(result.report).toBeDefined();
    });

    describe('getting type, report and title when success = 0 and errors = 1', function(){
        this.errors = 1;
        var result = $scope.getReport(this.success, this.errors);

        it('returns a type error', function(){
            expect(result.type).toEqual('error');
        });

        it('returns a report empty string', function(){
           expect(result.report).toEqual(''); 
        });

        it('returns a title which is not empty string', function(){
            expect(result.title).toMatch(/[a-z]/);
        });
    });
});

第一个'it'功能正常工作。在'获取类型，报告和标题成功= 0和错误= 1'时，我收到以下错误：“TypeError：无法读取未定义的属性'getReport'”

因此在第一个'it'函数之后不再定义$ scope。我不明白为什么。

来自Jasmine Doc

嵌套描述块

可以嵌套调用描述，并在任何级别定义规范。这允许将套件组合为功能树。在执行规范之前，Jasmine按顺序执行每个beforeEach函数的树。执行规范后，Jasmine同样会遍历afterEach函数。

Answer 1

我只需在每个描述中添加beforeEach来更改变量值并执行getReport函数，如下所示：

describe('$scope.getReport', function(){
  beforeEach(function(){
    this.success = 0;
    this.errors = 0;
  });


  it('returns an object with a type, a title and a report', function(){
    var result = $scope.getReport(this.success, this.errors);
    expect(result.type).toBeDefined();
    expect(result.title).toBeDefined();
    expect(result.report).toBeDefined();
  });

  describe('getting type, report and title when success = 0 and errors = 1', function(){
    beforeEach(function(){
      this.errors = 1;
      this.result = $scope.getReport(this.success, this.errors);
    )}

    it('returns a type error', function(){
        expect(this.result.type).toEqual('error');
    });

    it('returns a report empty string', function(){
       expect(this.result.report).toEqual(''); 
    });

    it('returns a title which is not empty string', function(){
        expect(this.result.title).toMatch(/[a-z]/);
    });
});

}）;

使用茉莉花变化范围

1 个答案: