Angular Web Framework Angular Quality & Compliance 2

Question 1

Which Angular CLI command runs unit tests with code coverage reporting enabled?

Accepted Answer

ng test --code-coverage

Answer

The `ng test --code-coverage` flag instructs Karma to produce an Istanbul coverage report in the `/coverage` folder.

Question 2

In Angular's default Karma configuration, which coverage reporter generates an HTML report you can open in a browser?

Accepted Answer

html

Answer

The `html` reporter produces a browsable HTML coverage report in the coverage output directory.

Question 3

What is the purpose of the `schemas: [NO_ERRORS_SCHEMA]` option in an Angular TestBed configuration?

Accepted Answer

Suppresses unknown element and attribute errors in the test host

Answer

`NO_ERRORS_SCHEMA` tells TestBed to ignore unknown elements and attributes, allowing shallow component testing without declaring every child component.

Question 4

Which ESLint rule configuration file does `ng lint` look for by default in a modern Angular project?

Accepted Answer

.eslintrc.js or .eslintrc.json

Answer

Modern Angular projects generated with `@angular-eslint/schematics` use `.eslintrc.js` or `.eslintrc.json` as the ESLint configuration file.

Question 5

What does the `fixture.detectChanges()` call do in an Angular unit test?

Accepted Answer

Triggers Angular's change detection cycle on the test fixture

Answer

`detectChanges()` manually triggers Angular's change detection so the DOM reflects the component's current state during testing.

Angular Web Framework Practice Test

Angular Web Framework Practice Test

Angular Web Framework Angular Quality & Compliance 2