General roadmap for developers to learn testing

Version 1.0.4

This roadmap helps you learn testing concepts in a structured and principled way.
It also allows you to evaluate yourself — to see what you're already familiar with and where you might need improvement.

📌 What to Expect

• A clear structure to learn testing step by step
• A self-assessment guide to track your strengths and weaknesses
• A mix of concepts and tools to give you a complete view of the testing world

With just one glance, you’ll be able to revisit and review all essential testing topics.

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🤝 Contribute to This Roadmap

To expand and improve this repository, we need your help!
If you know useful tools, resources, or have experience in testing that others can benefit from, feel free to share them.
You’re welcome to open a Pull Request or create an Issue — every contribution makes a difference!

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Give a Star! ⭐

📌 Start from wherever you are — move forward with clarity!

Test Concepts

• White Box
• Gray Box
• Black Box

Test Design

• Criteria Base
  • Equivalence Partitioning
  • Boundary Value Analysis
  • State Transition Diagrams
  • Decision Table Testing
  • Graph Coverage
• Human Base

Naming Standards

• MethodName_StateUnderTest_ExpectedBehavior
• MethodName_ExpectedBehavior_StateUnderTest
• test[Feature being tested]
• Feature to be tested
• Should_ExpectedBehavior_When_StateUnderTest
• When_StateUnderTest_Expect_ExpectedBehavior
• Given_Preconditions_When_StateUnderTest_Then_ExpectedBehavior

Patterns

• AAA Pattern
  • Arrange
  • Act
  • Assert
    • .NET
      • Shouldly
      • Fluent Assertion
    • JS
      • jest
    • Python
      • pytest
    • PHP
      • PHPUnit
• Four Phase Test
  • Setup
  • Exercise
  • Verify
  • Teardown

Development approach

• TLD
• TDD
  • Read
  • Green
  • Refactor
• BDD
  • Gherkin
    • Given
    • When
    • Then
  • Tools
    • Cucumber

Test Types

• Functional
  • Unit Test
    • Terminologies
      • Isolated
      • Repeatable
    • Test Doubles
      • Dummy
      • Fake
      • Stub
      • Spy
      • Mock
    • Internal Functions Testing
      • .NET Friend assemblies
    • Frameworks
      • .NET
        • XUnit
        • NUnit
      • JS
        • Jest
      • Python
        • unittest
      • PHP
        • PHPUnit
    • Mock Tools
      • .NET
        • Moq
        • RichardSzalay.MockHttp
        • NSubstitute
      • JS
        • Jest
      • Python
        • unittest.mock
      • PHP
        • PHPUnit Mock Objects
  • Integration Test
    • Types
      • Non Incremental
        • Big Bang Integration
      • Incremental
        • Top - Down
        • Bottom - Up
    • Third party Integration
      • Database Sandbox
        • EFCore InMemoryDatabase
        • SQLite
      • Container Integration
        • Test Container
        • Gitlab Service container
        • Github Service container
    • Mock Server
      • Mockito
      • Wire mock
    • Tools
      • White Box
        • .NET WebApplicationFactory
      • Black Box
        • Playwright
        • Postman
  • End-to-end
    • headless
    • headed
    • Tools
      • Playwright
      • .NET WebApplicationFactory
      • Cypress
      • Selenium
  • System Test
  • Acceptance Test
• Non-Functional
  • Performance Testing
    • Types
      • Load testing
      • Stress testing
      • Volume testing
      • Spike testing
      • Soak testing
    • Tools
      • K6
      • Apache JMeter
  • Usability Testing
  • Compatibility Testing
  • Reliability testing
    • Failover
    • Fault tolerance
  • Architecture Testing
    • .NET
      • ArchUnitNET
    • PHP
      • phpat
• Other Test Types
• Smoke Testing
  • Smoke Testing
    • K8S readiness
    • K8S liveness
  • A/B Testing
  • Snapshot Testing
    • .NET
      • Verify
    • JS
      • Jest
    • Python
      • snapshottest
    • PHP
      • phpunit-snapshot-assertions
  • Canary Testing

Test Pyramid

Fake Data Generation

• .NET
  • AutoFixture
  • Bogus
• JS
  • Faker.js
• Python
  • Faker
• PHP
  • FakerPHP

Test Coverage

• CLI
  • dotnet-coverage
• Visual
  • IDE Tools
  • dotCover

Test smells

• Test Logic
• Magic strings
• Slow Tests
• Multiple Act
• Stub static references
  • DateTime
  • System.IO
• Flaky
• Test Duplication in test levels

Clean Test Code

• Test code is as important as production code
• Duplication is okay, if it improves readability
• Use the Rule of Three to decide to refactor
• Test one condition per test

Test execution

• Manual
• Automate
  • Without Pipeline
    • Git Hooks
      • Husky .NET
      • Husky
  • With Pipeline
    • CI
    • CD

Static Code Analysis

• Plugin
  • analysis-tools
• External
  • Sonarqube
  • VeraCode
  • OWASP Code Pulse

Books

• The art of unit testing - Roy Osherov
• TDD by Example - Kent Beck
• XUnit Test Patterns by Gerard Meszaros

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Contribute

If you have any ideas, I’d be happy to receive them as a PR. The raw file for this roadmap is available, so feel free to use it and apply your own changes.

Idea from: AspNetCore Developer Roadmap

🧠 Stay curious!