unit-testing

问题 I'm struggling to use mock.patch in a multiprocessing environment while without multiprocessing mock.patch works fine. Filename: test_mp.py import multiprocessing import mock def inner(): return sub() def sub(): return "abc" def test_local(): assert inner()=="abc" def test_mp(): with multiprocessing.Pool() as pool: assert pool.apply(inner,args=[])=='abc' def test_mock(): with mock.patch('test_mp.sub', return_value='xxx') as xx: assert inner()=="xxx" xx.assert_called_once() def test_mp_mock():

问题 I have a file that exports some functions: function getNow() { console.log('real now'); return dayjs(); } function groupProducts(productInfos, now) { console.log('real group'); return productInfos.reduce((groups, productInfo) => { const groupKey = dayjs(productInfo.saleStartDate) > now ? dayjs(productInfo.saleStartDate).format('YYYY-MM-DD') : dayjs(now).format('YYYY-MM-DD'); let group = groups[groupKey]; if (!group) { group = []; // eslint-disable-next-line no-param-reassign groups[groupKey]

问题 The problem happens after migrating our project from Angular 8.2.14 to Angular 10.2.24. This is the test code fdescribe('PopupModalService Testing', () => { let componentFactoryResolver: ComponentFactoryResolver; let viewContainerRef: ViewContainerRef; let popupModalService: PopupModalService; beforeEach(waitForAsync(() => { const viewContainerRefSpy = jasmine.createSpyObj('ViewContainerRef', ['insert']); TestBed.configureTestingModule({ declarations: [ PopupModalComponent, DialogApiComponent

问题 With google tests, let's assume the following code #include <iostream> using namespace std; using MyFunc = void (*)(void); void foo_robust(MyFunc f) { if(f != nullptr) (*f)(); } void foo_not_robust(MyFunc f) { (*f)(); } void print(void) { cout << "hello world" << endl; } int main() { foo(&print); //works foo(nullptr); //runtime error ? return 0; } When using google test, I can do: TEST(TestAssertDeath, Death) { EXPECT_DEATH(foo(&print)); //will return FAILED, because does not die. EXPECT

问题 I'm integrating with a 3rd party script and have come across a scenario which I don't know how to test properly. The 3rd party script adds an object to the window with a few methods. The second argument of the create method is a callback function which returns a promise that is either rejected or resolved. I need to be able to mock that second argument with either a reject or resolved status so that my unit test can cover whether the UI is updated with either the error or success message. How

问题 I'm integrating with a 3rd party script and have come across a scenario which I don't know how to test properly. The 3rd party script adds an object to the window with a few methods. The second argument of the create method is a callback function which returns a promise that is either rejected or resolved. I need to be able to mock that second argument with either a reject or resolved status so that my unit test can cover whether the UI is updated with either the error or success message. How

问题 I'm using xUnit for implementing tests. I used to install the xUnit Visual Studio runner, xunit.runner.visualstudio nuget package to run tests using the VS GUI. Below is are xUnit-related branches of the dependency tree in VS. You can clearly see the xUnit VS runner has no dependencies: Visual Studio is suddenly asking me to install the Microsoft.NET.Test.Sdk nuget in order to run tests in the GUI. Anyone knows why? Note: I have been using VS 2019 for over a year frequently updating asap. The

问题 Consider I have a class Tournament with methods register() and isAlreadyRegistered() . Below is the sample code. public class Tournament { private boolean register(String teamName) { if(!isAlreadyRegistered(teamName)) { // register team return True; } return False; } private boolean isAlreadyRegistered(String teamName) { // Check if team is already registered, involves DB calls } public static void main(String[] args) throws Exception { Tournament tournament = new Tournament(); tournament

问题 I have the following structure: class A { public A(String p){ // ... } public String AMethod(String p){ // ... } } class B { int method(String param){ A a = new A(param); int n; String s = A.AMethod(param); // ... (initializes n, ...) return n; } } Now I want to test method in class B but control the output of AMethod when it is called. But since I do not create the object A in the test class of B, I cannot mock it normally - how can I mock object A instead? I tried Mockito.spy but it doesn't

问题 I use the System.IO.Abstractions.TestingHelpers to mock FileSystem. In my class, I inject IFileSystem and use the instance to call _fileSystem.File.Exists and _fileSystem.File.Delete. In my test class, I would like to verify that the "Delete" method was called. It's easy by mocking only the IFile, but since I already mocked the FileSystem, I don't want to have to mock the Directory, Path and File on top of it. Is it possible to call something like _fileRepository.FileMock.Verify(x => x.Delete