public void FetchLastDiagnostics_Test()
{
//Arrange
var diagnosticsContextFactory = new Mock<IPrompterDiagnosticsDbContextFactory>();
var diagnosticsContext = new Mock<IPrompterDiagnosticsDbContext>();
var diagnosticsDbSet = new Mock<IDbSet<Diagnostics>>();
var diagnostics = new List<Diagnostics>
{
new Diagnostics
{
DiagnosticsId = 1,
Date = DateTime.Now
},
new Diagnostics
{
DiagnosticsId = 2,
Date = DateTime.Now
}
}.AsQueryable();
diagnosticsContextFactory.Setup(t => t.Create())
.Returns(diagnosticsContext.Object);
diagnosticsDbSet.Setup(t => t.Provider)
.Returns(diagnostics.Provider);
diagnosticsDbSet.Setup(t => t.Expression)
.Returns(diagnostics.Expression);
diagnosticsDbSet.Setup(t => t.GetEnumerator())
.Returns(diagnostics.GetEnumerator());
diagnosticsContext.Setup(t => t.Diagnostics)
.Returns(diagnosticsDbSet.Object);
var diagnosticsService = new DiagnosticsService(diagnosticsContextFactory.Object);
//Act
var actual = diagnosticsService.FetchLastDiagnostics();
//Assert
Assert.That(actual, Is.Not.Null);
Assert.That(actual.Count, Is.EqualTo(2));
diagnosticsContext.Verify(t => t.Diagnostics, Times.Once());
}
public async void SaveDiagnosticAsync_Test()
{
//Arrange
var diagnosticContextFactory = new Mock<IPrompterDiagnosticsDbContextFactory>();
var diagnosticContext = new Mock<IPrompterDiagnosticsDbContext>();
diagnosticContext.Setup(t => t.Diagnostics.Add(It.IsAny<Diagnostics>()));
diagnosticContextFactory.Setup(t => t.Create())
.Returns(diagnosticContext.Object);
var diagnosticsService = new DiagnosticsService(diagnosticContextFactory.Object);
//Act
await diagnosticsService.SaveDiagnosticAsync(new Diagnostics());
//Assert
diagnosticContextFactory.Verify(t => t.Create(), Times.Once);
diagnosticContext.Verify(t => t.SaveChangesAsync(), Times.Once);
Assert.Throws<ArgumentNullException>(
async () => await diagnosticsService.SaveDiagnosticAsync(null));
}
