Add validator tests for brewery and user commands (#282)

web/backend/Features/Features.Users.Tests/Commands/UpdateProfileValidatorTests.cs

@@ -0,0 +1,97 @@
+using Features.Users.Commands.Profile.UpdateProfile;
+using FluentValidation.TestHelper;
+
+namespace Features.Users.Tests.Commands;
+
+public class UpdateProfileValidatorTests
+{
+    private readonly UpdateProfileValidator _validator = new();
+
+    private static UpdateProfileCommand ValidCommand() =>
+        new(Guid.NewGuid(), "John", "Doe", DateTime.Today.AddYears(-25));
+
+    [Fact]
+    public void Validate_ValidCommand_HasNoValidationErrors()
+    {
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(
+            ValidCommand()
+        );
+
+        result.ShouldNotHaveAnyValidationErrors();
+    }
+
+    [Fact]
+    public void Validate_EmptyFirstName_HasErrorForFirstName()
+    {
+        UpdateProfileCommand command = ValidCommand() with { FirstName = "" };
+
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(command);
+
+        result
+            .ShouldHaveValidationErrorFor(x => x.FirstName)
+            .WithErrorMessage("First name is required");
+    }
+
+    [Fact]
+    public void Validate_FirstNameTooLong_HasErrorForFirstName()
+    {
+        UpdateProfileCommand command = ValidCommand() with { FirstName = new string('a', 129) };
+
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(command);
+
+        result
+            .ShouldHaveValidationErrorFor(x => x.FirstName)
+            .WithErrorMessage("First name cannot exceed 128 characters");
+    }
+
+    [Fact]
+    public void Validate_EmptyLastName_HasErrorForLastName()
+    {
+        UpdateProfileCommand command = ValidCommand() with { LastName = "" };
+
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(command);
+
+        result
+            .ShouldHaveValidationErrorFor(x => x.LastName)
+            .WithErrorMessage("Last name is required");
+    }
+
+    [Fact]
+    public void Validate_LastNameTooLong_HasErrorForLastName()
+    {
+        UpdateProfileCommand command = ValidCommand() with { LastName = new string('a', 129) };
+
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(command);
+
+        result
+            .ShouldHaveValidationErrorFor(x => x.LastName)
+            .WithErrorMessage("Last name cannot exceed 128 characters");
+    }
+
+    [Fact]
+    public void Validate_DefaultDateOfBirth_HasErrorForDateOfBirth()
+    {
+        UpdateProfileCommand command = ValidCommand() with { DateOfBirth = default };
+
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(command);
+
+        result
+            .ShouldHaveValidationErrorFor(x => x.DateOfBirth)
+            .WithErrorMessage("Date of birth is required");
+    }
+
+    [Fact]
+    public void Validate_DateOfBirthExactlyNineteenYearsAgo_HasErrorForDateOfBirth()
+    {
+        UpdateProfileCommand command = ValidCommand() with
+        {
+            DateOfBirth = DateTime.Today.AddYears(-19)
+        };
+
+        TestValidationResult<UpdateProfileCommand> result = _validator.TestValidate(command);
+
+        result
+            .ShouldHaveValidationErrorFor(x => x.DateOfBirth)
+            .WithErrorMessage("You must be at least 19 years old");
+    }
+}