ng-mocks
ng-mocks is an Angular testing library that simplifies unit test setup by providing utilities to mock components, directives, pipes, services, and modules. It reduces boilerplate code and integrates with Jasmine and Jest test runners.
Key facts
Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.
| Field | Value |
|---|---|
| Repository | help-me-mom/ng-mocks |
| Owner | help-me-mom |
| Primary language | TypeScript |
| License | MIT — OSI-approved |
| Stars | 1.2k |
| Forks | 121 |
| Open issues | 85 |
| Latest release | v14.15.3 (2026-05-27) |
| Last updated | 2026-07-08 |
| Source | https://github.com/help-me-mom/ng-mocks |
What ng-mocks is
ng-mocks provides MockBuilder for TestBed configuration, MockRender for component fixture creation, and utility functions (ngMocks.change, ngMocks.trigger, MockInstance) for test interactions. It supports Angular 5–22 with Ivy, standalone components, and signals (limited support).
Get the ng-mocks source
Clone the repository and explore it locally.
git clone https://github.com/help-me-mom/ng-mocks.gitcd ng-mocks# follow the project's README for install & configurationNeed it deployed, integrated, or customized instead? DEV.co ships production installs.
Best use cases
Implementation considerations
- Requires TypeScript and Node.js; install via npm or yarn alongside @angular/core and test runner (Jasmine or Jest).
- Global setup in src/test.ts or src/setup-jest.ts is recommended to configure ngMocks.autoSpy and defaultMock; allows consistent mock behavior across test suite.
- MockBuilder fluent API has a learning curve; review documentation examples and live CodeSandbox/StackBlitz samples before large-scale rollout.
- Mocking strategies (shallow, deep, keep certain imports) must be chosen per spec; no one-size-fits-all approach for all test types.
- CI/CD must run both Jasmine and Jest if testing against both; no built-in runner auto-detection.
When to avoid it — and what to weigh
- Integration testing is your primary goal — ng-mocks is designed for isolation and mocking; it does not facilitate end-to-end or integration test scenarios. Use it alongside e2e tools, not instead of them.
- You need performance or security testing — This is a unit testing utility. Performance profiling, load testing, and security scanning require separate tools and frameworks.
- Your project uses non-standard Angular patterns — ng-mocks assumes standard Angular module structure, TestBed conventions, and reactive forms. Custom DI containers or unusual architectures may require workarounds.
- Angular versions 4 or earlier — Official support begins at Angular 5. Older versions will not be tested or guaranteed compatible.
License & commercial use
MIT License. Permits commercial and private use, modification, and distribution with no restrictions other than inclusion of license and copyright notice.
MIT is a permissive OSI-approved license. Commercial use is permitted. No license review required for standard commercial software projects. Ensure compliance with MIT attribution requirements in your product documentation or code.
DEV.co evaluation signals
Editorial assessment — not user reviews. Directional, with an explicit confidence level.
| Signal | Assessment |
|---|---|
| Maintenance | Active |
| Documentation | Strong |
| License clarity | Clear |
| Deployment complexity | Low |
| DEV.co fit | Good |
| Assessment confidence | High |
No security-sensitive operations performed by ng-mocks; it is a testing utility run only in development and CI environments, not in production. Standard npm supply-chain considerations apply. No network calls or data persistence. Review CHANGELOG for any reported vulnerabilities before major version upgrades.
Alternatives to consider
Spectator
Also simplifies Angular testing with TestBed helpers, but focuses on query and trigger utilities more than mocking. Lighter weight for shallow component tests.
@testing-library/angular
Emphasizes user-centric testing and DOM queries; complements rather than replaces mocking. Best used alongside ng-mocks for integration-like unit tests.
Manual TestBed configuration
No external dependency; requires explicit MockModule, MockComponent, MockPipe setup. Increases boilerplate but provides full control and no learning curve.
Build on ng-mocks with DEV.co software developers
ng-mocks reduces TestBed boilerplate and integrates seamlessly with Jasmine and Jest. Evaluate it for your Angular 5–22 projects today.
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ng-mocks FAQ
Does ng-mocks replace Jasmine or Jest?
Can I use ng-mocks in production code?
What if a dependency is not mockable with ng-mocks?
Is there official commercial support?
Software developers & web developers for hire
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Streamline Your Angular Test Suite
ng-mocks reduces TestBed boilerplate and integrates seamlessly with Jasmine and Jest. Evaluate it for your Angular 5–22 projects today.