EditContextCslaExtensionsTests.cs

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using Microsoft.VisualStudio.TestTools.UnitTesting;
using Csla.Blazor.Test.Fakes;
using Microsoft.AspNetCore.Components.Forms;
using System.Collections.Generic;
using System.Linq;
using Microsoft.Extensions.DependencyInjection;
using System;
using Csla.TestHelpers;
 
namespace Csla.Blazor.Test
{
  [TestClass]
  public class EditContextCslaExtensionsTests
  {
    private static TestDIContext _testDIContext;
 
    [ClassInitialize]
    public static void ClassInitialize(TestContext context)
    {
      _testDIContext = TestDIContextFactory.CreateDefaultContext();
    }
    
    [TestMethod]
    public void ValidateModel_EmptyLastName_OneValidationMessage()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set last name to an invalid value
      person.LastName = string.Empty;
 
      // Act
      editContext.Validate();
      IEnumerable<string> messages = editContext.GetValidationMessages();
 
      // Assert
      Assert.AreEqual(1, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateModel_ShortFirstName_NoValidationMessages()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set last name to an invalid value
      person.LastName = "A";
 
      // Act
      editContext.Validate();
      IEnumerable<string> messages = editContext.GetValidationMessages();
 
      // Assert
      Assert.AreEqual(0, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateModel_ShortLastName_NoValidationMessages()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set last name to an invalid value
      person.LastName = "A";
 
      // Act
      editContext.Validate();
      IEnumerable<string> messages = editContext.GetValidationMessages();
 
      // Assert
      Assert.AreEqual(0, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateModel_ExcessiveFirstNameEmptyLastName_TwoValidationMessages()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set first and last names to invalid values
      person.FirstName = "This text is more than twenty five characters long";
      person.LastName = string.Empty;
 
      // Act
      editContext.Validate();
      IEnumerable<string> messages = editContext.GetValidationMessages();
 
      // Assert
      Assert.AreEqual(2, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateModel_NeitherTelephoneProvided_TwoValidationMessages()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set both phone numbers to invalid values
      person.HomeTelephone = "";
      person.MobileTelephone = "";
 
      // Act
      editContext.Validate();
      IEnumerable<string> messages = editContext.GetValidationMessages();
 
      // Assert
      Assert.AreEqual(2, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateModel_EmptyChildEmailAddress_OneValidationMessage()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Create a new child object (which is immediately invalid)
      person.EmailAddresses.AddNew();
 
      // Act
      editContext.Validate();
      IEnumerable<string> messages = editContext.GetValidationMessages();
 
      // Assert
      Assert.AreEqual(1, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateField_ExcessiveFirstNameEmptyLastName_OneValidationMessageForFirstName()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set first and last names to invalid values
      person.FirstName = "This text is more than twenty five characters long";
      person.LastName = string.Empty;
 
      // Act
      editContext.NotifyFieldChanged(new FieldIdentifier(person, nameof(person.FirstName)));
      IEnumerable<string> messages = editContext.GetValidationMessages(new FieldIdentifier(person, nameof(person.FirstName)));
 
      // Assert
      Assert.AreEqual(1, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateField_NeitherTelephoneProvided_OneValidationMessageForHomeTelephone()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set both phone numbers to invalid values
      person.HomeTelephone = "";
      person.MobileTelephone = "";
 
      // Act
      editContext.NotifyFieldChanged(new FieldIdentifier(person, nameof(person.HomeTelephone)));
      IEnumerable<string> messages = editContext.GetValidationMessages(new FieldIdentifier(person, nameof(person.HomeTelephone)));
 
      // Assert
      Assert.AreEqual(1, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateField_ShortFirstName_NoValidationMessagesForFirstName()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set first name to an invalid value
      person.FirstName = "A";
 
      // Act
      editContext.NotifyFieldChanged(new FieldIdentifier(person, nameof(person.FirstName)));
      IEnumerable<string> messages = editContext.GetValidationMessages(new FieldIdentifier(person, nameof(person.FirstName)));
 
      // Assert
      Assert.AreEqual(0, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateField_ShortLastName_NoValidationMessagesForLastName()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Set both last name to an invalid value
      person.LastName = "A";
 
      // Act
      editContext.NotifyFieldChanged(new FieldIdentifier(person, nameof(person.LastName)));
      IEnumerable<string> messages = editContext.GetValidationMessages(new FieldIdentifier(person, nameof(person.LastName)));
 
      // Assert
      Assert.AreEqual(0, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateField_MissingEmailAddress1_OneValidationMessageForEmailAddress1()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Add a new, empty email address
      FakePersonEmailAddress address = person.EmailAddresses.AddNew();
      address.EmailAddress = "";
 
      // Act
      editContext.NotifyFieldChanged(new FieldIdentifier(address, nameof(address.EmailAddress)));
      IEnumerable<string> messages = editContext.GetValidationMessages(new FieldIdentifier(address, nameof(address.EmailAddress)));
 
      // Assert
      Assert.AreEqual(1, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    [TestMethod]
    public void ValidateField_ValidEmailAddress1_NoValidationMessagesForEmailAddress1()
    {
      // Arrange
      FakePerson person = GetValidFakePerson();
      EditContext editContext = new EditContext(person);
      editContext.AddCslaValidation();
 
      // Add a new, valid email address
      FakePersonEmailAddress address = person.EmailAddresses.AddNew();
      address.EmailAddress = "name@domain.com";
 
      // Act
      editContext.NotifyFieldChanged(new FieldIdentifier(address, nameof(address.EmailAddress)));
      IEnumerable<string> messages = editContext.GetValidationMessages(new FieldIdentifier(address, nameof(address.EmailAddress)));
 
      // Assert
      Assert.AreEqual(0, messages.Count(), "Incorrect number of validation messages returned! " + ConcatenateMessages(messages));
 
    }
 
    #region Helper Methods
 
    FakePerson GetValidFakePerson()
    {
      IDataPortal<FakePerson> dataPortal;
      FakePerson person;
 
      // Create an instance of a DataPortal that can be used for instantiating objects
      dataPortal = _testDIContext.CreateDataPortal<FakePerson>();
      person = dataPortal.Create();
 
      person.FirstName = "John";
      person.LastName = "Smith";
      person.HomeTelephone = "01234 567890";
 
      return person;
    }
 
    private string ConcatenateMessages(IEnumerable<string> messages)
    {
      return string.Join("; ", messages);
    }
 
    #endregion
 
  }
}