如何解决如何在.NET中使用xUnit测试强类型的IQueryable
我正在为.NET CORE Web API项目进行测试。我有SchoolService类,它实现一些方法,如下所示。
服务等级
public class SchoolService : ISchoolService
{
private readonly ISchoolEntity schoolEntity;
public SchoolService(ISchoolEntity schoolEntity)
{
this.schoolEntity = schoolEntity;
}
public IQueryable<SchoolDataView> GetAllSchools()
{
var query = this.schoolEntity.GetAllSchool();
return query;
}
public SchoolDataView GetSchoolById(Guid Id)
{
var query = this.schoolEntity.GetSchoolById(Id);
return query;
}
我要测试 1- GetAllSchools返回的对象类型是否为IQueryable? 2-我如何使用autofix或其他方式为schoolEntity.GetAllSchool()返回假的IQueryable?
服务测试
public class SchoolServiceTests
{
private readonly ISchoolService schoolService;
private readonly ISchoolEntity schoolEntity = Substitute.For<ISchoolEntity>();
public SchoolServiceTests()
{
schoolService = new SchoolService(schoolEntity);
}
[Fact]
public void GetAllSchool_ShouldReturn_IQueryableOfSchoolDataView()
{
//Arrange
//Act
var a = schoolEntity.GetAllSchool();
//Assert
Assert.??
}
}
解决方法
我写了以下测试来实现我在问题中陈述的行为。愿意听取更多关于它的反馈和建议。谢谢
[Fact]
public void GetAllSchool_ShouldReturn_IQueryableOfSchoolDataView()
{
//Arrange
var schoolDataViewList = new List<SchoolDataView>
{
new SchoolDataView { SchoolID = Guid.NewGuid(),Name = "London Primary School"},new SchoolDataView { SchoolID = Guid.NewGuid(),Name = "Windsor Gramer School"},Name = "Kings College"},Name = "Reading School"}
}.AsQueryable();
schoolEntity.GetAllSchool().Returns(schoolDataViewList);
//Act
var actualSchoolList = sut.GetAllSchools();
//Assert
Assert.IsAssignableFrom<IQueryable<SchoolDataView>>(actualSchoolList);
}
或使用自动修复
[Fact]
public void GetAllSchool_ShouldReturn_IQueryableOfSchoolDataView()
{
//Arrange
var fixture = new Fixture();
var schoolDataViewMock = fixture.CreateMany<SchoolDataView>();
schoolEntity.GetAllSchool().Returns(schoolDataViewMock.AsQueryable());
//Act
var actualSchoolDataList = sut.GetAllSchools();
//Assert
Assert.IsAssignableFrom<IQueryable<SchoolDataView>>(actualSchoolDataList);
}
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