Question

我编写了一个方法，如果要添加的模式中还有文件夹，则返回true;如果模式中没有要添加到应用程序的文件夹，则返回false

我在angular / typesrcipt中的方法

    ifAllFoldersHaveBeenAdded() {
        let added = false;
        let folderToExclude = find(this.bdDataModel.lenderDefinedFolders, { 
 name: 'Correspondence' });
        let foldersToBeChecked = without(this.bdDataModel.lenderDefinedFolders, folderToExclude);

        for (let i = 0; i < foldersToBeChecked.length; i++) {
            let folderPresent = find(this.bdDataModel.folders, { name: foldersToBeChecked[i].name });
            if (folderPresent) {
                added = true;

            } else {
                added = false;
                return added;
            }

        }
        return added;
    }

我的考试......

describe('ifAllFoldersHaveBeenAdded()', () => {
            it('returns false if there are folders left in the modal to be added', () => {
                let added = false;
                $ctrl.bdDataModel.folders;
                $ctrl.foldersToBeChecked = [{ name: 'FMS' }, { name: 'Other' }];
                $ctrl.folderPresent = { name: 'FMS' };

                $ctrl.ifAllFoldersHaveBeenAdded();
                added = true;
                expect(added).toEqual(true);

            });

            it('returns true is all folders have been added to the application', () => {
                let added = false;
                $ctrl.bdDataModel.folders;
                $ctrl.foldersToBeChecked = [{ name: 'FMS' }, { name: 'Other' }];
                $ctrl.folderPresent = { name: 'LMI' };

                $ctrl.ifAllFoldersHaveBeenAdded();
                expect(added).toEqual(false);
            });

        });

两个测试都通过但icov覆盖率报告将以下行标记为未覆盖...

find(this.bdDataModel.folders, { name: foldersToBeChecked[i].name });
            if (folderPresent) {
                added = true;
            }
            else {
                added = false;
                return added;
            }

请告诉我应该在测试中添加什么，以便为此单元测试提供100％的测试覆盖率。提前谢谢

Answer 1

你的测试有很多错误。首先，您需要完全摆脱本地added变量。做类似以下的事情

added = true;
expect(added).toEqual(true);

与执行expect(true).toBe(true)

基本相同

接下来，folderPresent和foldersToBeChecked变量是ifAllFoldersHaveBeenAdded函数的本地变量。它们不是控制器变量。您不需要在测试中设置$ctrl.folderPresent或$ctrl.foldersToBeChecked。

您需要定义这两个变量$ctrl.bdDataModel.lenderDefinedFolders和$ctrl.bdDataModel.folders

由于lenderDefinedFolders未定义，函数中foldersToBeChecked的长度将为0.因此for循环将永远不会执行。

您的测试应该如下所示：

it('returns false if there are folders left in the modal to be added', () => {
   $ctrl.bdDataModel.lenderDefinedFolders = [{ //add lender defined folders here }]
   $ctrl.bdDataModel.folders = [{ //add some folders here}]

   let added = $ctrl.ifAllFoldersHaveBeenAdded();
   expect(added).toEqual(true);
});

为什么测试覆盖率不是100％

1 个答案: