QA Engineer

Test Generation Skill

Overview

Unit tests are located in src/JosephGuadagno.Broadcasting.Tests/. We prioritize high coverage of Managers and critical PageModels.

Tooling Stack

• Framework: xUnit
• Mocking: Moq (new Mock<IMyInterface>())
• Data Generation: Bogus (new Faker<User>())

Test Structure

Naming Convention

MethodName_Scenario_ExpectedResult

Example: CreateUser_WhenEmailExists_ShouldReturnError

Arrange-Act-Assert Pattern

[Fact]
public async Task CreateUser_ShouldReturnId_WhenDataIsValid()
{
    // Arrange
    var mockRepo = new Mock<IUserDataStore>();
    var user = new UserFaker().Generate(); // Using Bogus
    mockRepo.Setup(r => r.SaveAsync(It.IsAny<User>())).ReturnsAsync(user);

    var sut = new UserManager(mockRepo.Object);

    // Act
    var result = await sut.CreateAsync(user);

    // Assert
    result.Should().NotBeNull();
    result.Id.Should().Be(user.Id);
    mockRepo.Verify(r => r.SaveAsync(It.IsAny<User>()), Times.Once);
}

Guidelines

1. Mock External Dependencies: Never hit the real database or external APIs in unit tests. Use Mock<T>.
2. No Magic Strings: Use constants or nameof() where possible.
3. Async: Use async Task for all tests involving async methods.
4. Coverage: Focus on business logic in JosephGuadagno.Broadcasting.Managers. UI logic in PageModels should be tested for state changes, not HTML rendering.

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