xUnit IClassFixture 在每次测试中都不是运行

Question

根据 IClassFixture https://xunit.net/docs/shared-context 的文档，它说

"Just before the first tests in MyDatabaseTests is run, xUnit.net will create an instance of DatabaseFixture. For each test, it will create a new instance of MyDatabaseTests, and pass the shared instance of DatabaseFixture to the constructor."

我盯着 "For each test" 部分看。因为，它只调用一次继承的夹具，至少在我的代码中是这样。

   public class TransportSequenceResourceAggregateServiceTests : IClassFixture<TransportSequenceResourceAggregateServiceFixture>
{
    private TransportSequenceResourceAggregateServiceFixture fixture;
    public TransportSequenceResourceAggregateServiceTests(TransportSequenceResourceAggregateServiceFixture fixture)
    {
        this.fixture = fixture;
    }

    [Fact]
    public void If_No_Aggregate_Exist_Return_Null()
    {
        var sut = fixture.transportSequenceResourceAggregateService;

        var aggrate = sut.Get("some_new_resource");

        Assert.True(aggrate == null);
    }

    [Fact]
    public void If_Resource_Does_Not_Exists_Create_New_Aggreagate()
    {
        var sut = fixture.transportSequenceResourceAggregateService;

        var aggrate = sut.Create("some_new_resource");

        Assert.True(aggrate.ResourcePosition == null);
        Assert.True(aggrate.TransportSequences == null);
    }

但也许我读错了？

难道不应该在每次测试时都创建一个新的夹具运行吗？

谢谢

Answer 1

注意 MyDatabaseTests 是你的测试 class 而 DatabaseFixture 是 class 你想要实例化一次并传递给每个测试的实例

Just before the first tests in MyDatabaseTests is run, xUnit.net will create an instance of DatabaseFixture.

然后

For each test, it will create a new instance of MyDatabaseTests, and pass the shared instance of DatabaseFixture to the constructor

将是：为每个测试 xUnit 创建新的测试实例 class 并传递已创建的 fixture

实例

另一种方法

MyDatabaseTests => TransportSequenceResourceAggregateServiceTests
DatabaseFixture => TransportSequenceResourceAggregateServiceFixture

因此 fixture 只会创建一次。

xUnit IClassFixture 在每次测试中都不是 运行

xUnit IClassFixture is not run at every test

xunit

xUnit IClassFixture 在每次测试中都不是运行