public void FetchLogPage_Test()
{
//Arange
const int pageCount = 50;
var stubLogFactory = new Mock<IPrompterDiagnosticsDbContextFactory>();
var stubLogContext = new Mock<IPrompterDiagnosticsDbContext>();
stubLogFactory.Setup(l => l.Create())
.Returns(stubLogContext.Object);
var logs = new List<UserActivity>(pageCount * 2);
for (int i = 0; i < pageCount * 2; i++)
{
logs.Add(new UserActivity());
}
var contextLogs = logs.AsQueryable();
stubLogContext.Setup(c => c.UserActivities.GetEnumerator())
.Returns(contextLogs.GetEnumerator());
stubLogContext.Setup(c => c.UserActivities.Provider)
.Returns(contextLogs.Provider);
stubLogContext.Setup(c => c.UserActivities.Expression)
.Returns(contextLogs.Expression);
var service = new UserActivityService(stubLogFactory.Object);
//Act
var actual = service.FetchLogPage(1);
//Assert
stubLogFactory.Verify(f => f.Create(),
Times.Once);
stubLogContext.Verify(c => c.UserActivities,
Times.Once);
Assert.That(actual.Count == pageCount);
Assert.That(service.FetchLogPage(2)
.Count == pageCount);
Assert.That(service.FetchLogPage(3)
.Count == 0);
}
public void FetchAllLogs_Test()
{
//Arange
var stubDiagnosticFactory = new Mock<IPrompterDiagnosticsDbContextFactory>();
var stubDiagnosticContext = new Mock<IPrompterDiagnosticsDbContext>();
var logs = new List<UserActivity>
{
new UserActivity(),
new UserActivity()
}.AsQueryable();
stubDiagnosticFactory.Setup(f => f.Create())
.Returns(stubDiagnosticContext.Object);
stubDiagnosticContext.Setup(c => c.UserActivities.GetEnumerator())
.Returns(logs.GetEnumerator());
stubDiagnosticContext.Setup(c => c.UserActivities.Provider)
.Returns(logs.Provider);
stubDiagnosticContext.Setup(c => c.UserActivities.Expression)
.Returns(logs.Expression);
var service = new UserActivityService(stubDiagnosticFactory.Object);
//Act
var actual = service.FetchAllLogs();
//Assert
Assert.That(actual.Count == 2);
Assert.That(actual[0].EntityState == EntityState.Unchanged);
Assert.That(actual[1].EntityState == EntityState.Unchanged);
stubDiagnosticFactory.Verify(f => f.Create(), Times.Once());
stubDiagnosticContext.Verify(c => c.UserActivities, Times.Once);
}
public async void SaveActivity_Test()
{
//Arange
var stubDiagnosticFactory = new Mock<IPrompterDiagnosticsDbContextFactory>();
var dummyDiagnosticContext = new Mock<IPrompterDiagnosticsDbContext>();
stubDiagnosticFactory.Setup(d => d.Create())
.Returns(dummyDiagnosticContext.Object);
dummyDiagnosticContext.Setup(d => d.UserActivities
.Add(It.IsAny<UserActivity>()));
var service = new UserActivityService(stubDiagnosticFactory.Object);
//Act
await service.SaveActivityAsync(new UserActivity());
//Assert
stubDiagnosticFactory.Verify(f => f.Create(), Times.Once);
dummyDiagnosticContext.Verify(c => c.SaveChangesAsync(), Times.Once);
Assert.Throws<ArgumentNullException>(
async () => await service.SaveActivityAsync(null));
}