Question 1

How to mock a service with shallow-render?

Accepted Answer

Shallow-render automatically mocks dependencies from the component's module, but for custom service mocking, you can use the API to override providers, as referenced in the example tests and documentation links.

Question 2

Shallow-render vs TestBed: which is better for Angular testing?

Accepted Answer

Use shallow-render for isolated unit tests with less boilerplate and faster execution, but choose TestBed for integration tests or when you need full control over the testing environment. Shallow-render excels in simplicity for component-focused scenarios.

Question 3

Does shallow-render work with Angular's latest versions?

Accepted Answer

It supports Angular versions up to 20x as per the README's version table, but check the release notes for updates, as maintenance may lag due to the maintainer's note about limited resources.

Question 4

How to test component inputs and outputs in shallow-render?

Accepted Answer

Access inputs via bindings in the render method and outputs through the 'outputs' object, as demonstrated in the README example where outputs.handleClick.emit is spied on for event verification.

Question 5

Can I use shallow-render for testing directives or pipes directly?

Accepted Answer

It primarily focuses on component testing with automatic mocking of directives and pipes, but for standalone directive or pipe tests, you might need to rely on TestBed or consult the API docs for workarounds.

Question 6

Setting up shallow-render in an existing Angular project

Accepted Answer

Install via npm, import Shallow in spec files, and use the provided schematics for easier integration, as mentioned in the README's schematics section and example tests.

shallow-render

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