Testing TypeScript

Write robust tests for TypeScript code. Type test helpers, mock typed dependencies, test generic functions, and verify type-safe APIs. Follow the ideas in small steps: first understand the concept, then practice it in the browser, and finally connect it to a realistic coding problem. Each lesson builds on the previous one so the track becomes a skill you can explain and use, not just a list of terms.

180 interactive lessons across 6 units · 36+ hours · intermediate level

What you will learn

Build practical skills in TypeScript, Testing, Jest, TDD through browser-based coding exercises, guided feedback, unit quizzes, a debugging challenge, and a final project.

Course access

Unit 1, including its first 30 lessons and unit quiz, is free. The remaining 5 units require a CodeLearning365 Pro subscription.

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Testing TypeScript curriculum

The curriculum progresses from foundations to applied practice and mastery. Representative topics from every unit are listed below.

Unit 1: Foundations

30 lessons covering topics such as Why Testing? (TypeScript), Build a Typed Test Framework, Typed Assertions and Matchers, Testing Edge Cases with Types, TDD with TypeScript Types.

Why Testing? (TypeScript)
Build a Typed Test Framework
Typed Assertions and Matchers
Testing Edge Cases with Types
TDD with TypeScript Types

Unit 2: Core Concepts

30 lessons covering topics such as Power Up 031: Integration Testing a Typed API, Power Up 032: Typed Boundary Value Analysis, Power Up 033: Typed Property-Based Testing, Power Up 034: Refactoring with Typed Tests, Power Up 035: Typed Regression Testing.

Power Up 031: Integration Testing a Typed API
Power Up 032: Typed Boundary Value Analysis
Power Up 033: Typed Property-Based Testing
Power Up 034: Refactoring with Typed Tests
Power Up 035: Typed Regression Testing

Unit 3: Building Skills

30 lessons covering topics such as Power Up 061: Why Testing? (TypeScript), Power Up 062: Build a Typed Test Framework, Power Up 063: Typed Assertions and Matchers, Power Up 064: Testing Edge Cases with Types, Power Up 065: TDD with TypeScript Types.

Power Up 061: Why Testing? (TypeScript)
Power Up 062: Build a Typed Test Framework
Power Up 063: Typed Assertions and Matchers
Power Up 064: Testing Edge Cases with Types
Power Up 065: TDD with TypeScript Types

Unit 4: Applied Practice

30 lessons covering topics such as Power Up 091: Integration Testing a Typed API, Power Up 092: Typed Boundary Value Analysis, Power Up 093: Typed Property-Based Testing, Power Up 094: Refactoring with Typed Tests, Power Up 095: Typed Regression Testing.

Power Up 091: Integration Testing a Typed API
Power Up 092: Typed Boundary Value Analysis
Power Up 093: Typed Property-Based Testing
Power Up 094: Refactoring with Typed Tests
Power Up 095: Typed Regression Testing

Unit 5: Projects

30 lessons covering topics such as Power Up 121: Why Testing? (TypeScript), Power Up 122: Build a Typed Test Framework, Power Up 123: Typed Assertions and Matchers, Power Up 124: Testing Edge Cases with Types, Power Up 125: TDD with TypeScript Types.

Power Up 121: Why Testing? (TypeScript)
Power Up 122: Build a Typed Test Framework
Power Up 123: Typed Assertions and Matchers
Power Up 124: Testing Edge Cases with Types
Power Up 125: TDD with TypeScript Types

Unit 6: Mastery

30 lessons covering topics such as Power Up 151: Integration Testing a Typed API, Power Up 152: Typed Boundary Value Analysis, Power Up 153: Typed Property-Based Testing, Power Up 154: Refactoring with Typed Tests, Power Up 155: Typed Regression Testing.

Power Up 151: Integration Testing a Typed API
Power Up 152: Typed Boundary Value Analysis
Power Up 153: Typed Property-Based Testing
Power Up 154: Refactoring with Typed Tests
Power Up 155: Typed Regression Testing

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