public async Task OnPageAsync()
{
#region Arrange
var optionsBuilder = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase("InMemoryDb");
var mockDb = new Mock <ApplicationDbContext>(optionsBuilder.Options);
var expectedUsers = ApplicationDbContext.GetSeedMentor();
var expectedUser = expectedUsers.FirstOrDefault();
var username = expectedUser.UserName;
mockDb.Setup(db => db.GetMentorAsync(username))
.Returns(Task.FromResult(expectedUser));
var certificates = ApplicationDbContext.GetSeedCertificates();
var pageModel = new CertificatesModel(mockDb.Object);
pageModel.Username = username;
pageModel.Certificate = certificates.FirstOrDefault();
#endregion
#region Act
var result = await pageModel.OnPostAsync();
#endregion
#region Assert
Assert.IsType <RedirectToPageResult>(result);
#endregion
}
public async Task OnPageAsync_InvalidModelState()
{
#region Arrange
var optionsBuilder = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase("InMemoryDb");
var mockDb = new Mock <ApplicationDbContext>(optionsBuilder.Options);
var expectedUsers = ApplicationDbContext.GetSeedMentor();
var expectedUser = expectedUsers.FirstOrDefault();
var username = expectedUser.UserName;
mockDb.Setup(db => db.GetMentorAsync(username))
.Returns(Task.FromResult(expectedUser));
var certificates = ApplicationDbContext.GetSeedCertificates();
var pageModel = new CertificatesModel(mockDb.Object);
pageModel.Username = username;
pageModel.Certificate = certificates.FirstOrDefault();
pageModel.ModelState.AddModelError("This is an test error", "Error Message!");
#endregion
#region Act
var result = await pageModel.OnPostAsync();
#endregion
#region Assert
Assert.IsType <RedirectResult>(result);
var pageResult = result as RedirectResult;
var url = pageResult.Url;
Assert.Contains(
"Error", url);
#endregion
}
