How to extends @types/mocha context class?

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by lew , in category: Javascript , a month ago

How to extends @types/mocha context class?

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1 answer

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by domenico , a month ago

@lew 

To extend the context class in @types/mocha, you can create a new class that extends the existing Mocha.TestContext class and add your custom properties or methods to it. Here's an example of how you can do this:

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import { TestContext } from '@types/mocha';

class CustomTestContext extends TestContext {
  // Add your custom properties or methods here
  customProperty: string;

  constructor(test: TestContext) {
    super(test);
    this.customProperty = '';
  }
}

// Now you can use your custom TestContext class in your tests
describe('My test suite', function () {
  it('should have access to custom property', function () {
    const customTest: CustomTestContext = this as CustomTestContext;
    customTest.customProperty = 'Custom value';
    
    console.log('Custom property: ', customTest.customProperty);
  });
});


By creating a new class that extends TestContext, you can add custom properties or methods that are specific to your test suite or test cases. Just make sure to cast the context object to your custom class type when accessing the custom properties or methods.