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Testing & TDD

A comprehensive testing and TDD learning path covering unit tests, integration tests, E2E, mocking, TDD methodology, coverage, and CI integration for building reliable, well-tested software.

technicalintermediate12 nodes70h total
  1. 1

    Testing Fundamentals

    Understand test types, pyramid, and testing principles

    Completion criteria: Create a testing strategy for a sample project

    Next step: Learn unit testing

    ⏱ 6h

  2. 2

    Unit Testing with Jest and Vitest

    Write unit tests with Jest or Vitest and assertions

    Prerequisites: te-01

    Completion criteria: Write comprehensive unit tests for a module

    Next step: Study mocking

    ⏱ 8h

  3. 3

    Mocking and Test Doubles

    Master mocks, stubs, spies, and dependency injection

    Prerequisites: te-02

    Completion criteria: Write tests with proper mocking of dependencies

    Next step: Learn TDD methodology

    ⏱ 8h

  4. 4

    Test-Driven Development Methodology

    Practice Red-Green-Refactor cycle and TDD discipline

    Prerequisites: te-03

    Completion criteria: Build a feature entirely using TDD

    Next step: Study integration testing

    ⏱ 10h

  5. 5

    Integration Testing

    Write integration tests for components and services

    Prerequisites: te-04

    Completion criteria: Write integration tests covering multiple components

    Next step: Learn E2E testing

    ⏱ 8h

  6. 6

    End-to-End Testing with Cypress

    Write E2E tests simulating real user journeys

    Prerequisites: te-05

    Completion criteria: Create E2E tests covering critical user flows

    Next step: Study snapshot testing

    ⏱ 8h

  7. 7

    Snapshot and Visual Regression Testing

    Use snapshot tests and visual regression tools

    Prerequisites: te-06

    Completion criteria: Set up visual regression testing for UI components

    Next step: Learn performance testing

    ⏱ 6h

  8. 8

    Performance and Load Testing

    Write performance tests to identify bottlenecks

    Prerequisites: te-07

    Completion criteria: Create load tests and identify performance issues

    Next step: Study test coverage

    ⏱ 6h

  9. 9

    Test Coverage and Quality Metrics

    Measure coverage, identify gaps, and set quality gates

    Prerequisites: te-08

    Completion criteria: Set up coverage reporting with quality gates

    Next step: Learn CI integration

    ⏱ 4h

  10. 10

    CI/CD Integration for Tests

    Integrate tests into CI pipelines with parallelization

    Prerequisites: te-09

    Completion criteria: Set up a CI pipeline with parallel test execution

    Next step: Study testing patterns

    ⏱ 6h

  11. 11

    Testing Patterns and Anti-Patterns

    Learn best practices and avoid common testing anti-patterns

    Prerequisites: te-10

    Completion criteria: Refactor tests to follow best practices

    Next step: Build a capstone testing project

    ⏱ 4h

  12. 12

    Capstone Testing Project

    Build a fully tested application using TDD methodology

    Prerequisites: te-11

    Completion criteria: Deliver an application with comprehensive test suite using TDD

    Next step: Explore mutation testing and property-based testing

    ⏱ 6h