4.41.79 • Published 4 months ago

@tramvai/test-unit v4.41.79

Weekly downloads
-
License
Apache-2.0
Repository
github
Last release
4 months ago

Tramvai test unit

Helpers library for writing tramvai specific unit-tests

It might be even more useful when used with @tramvai/test-mocks

Installation

npm i --save-dev @tramvai/test-unit

How to

Testing reducers

import { testReducer } from '@tramvai/test-unit';

it('test', async () => {
  const { dispatch, getState } = testReducer(reducer);

  expect(getState()).toEqual([]);

  dispatch(event(1));

  expect(getState()).toEqual([1]);
});

@inline src/state/testReducer.spec.ts

Testing actions

Tramvai context and DI will be created automatically, otherwise you can directly pass it as an argument.

import { testAction } from '@tramvai/test-unit';

it('test', async () => {
  const { run, context } = testAction(action, { initialState: { a: 1 } });

  expect(await run(true)).toBe('hello');
  expect(await run(false)).toBe('world');

  context.getState(); // { a: 1 }
});

@inline src/state/testAction.spec.ts

Testing tramvai module

Testing module in isolation

import { testModule } from '@tramvai/test-unit';

it('test', async () => {
  const { di, module, runLine } = testModule(TestModule);

  expect(module).toBeInstanceOf(TestModule);
  expect(di.get('testToken')).toEqual({ a: 1 });

  // Run only specific command line in order to execute handlers for this line inside module
  await runLine(commandLineListTokens.generatePage);
});

Testing module in conjunction with other modules

import { createTestApp } from '@tramvai/test-unit';

it('test', async () => {
  const { app } = await createTestApp({ modules: [TestModule, DependentModule] });

  // get tokens from di implemented by module
  expect(app.di.get('testToken')).toEqual({ a: 1 });
});

@inline src/module/testModule.spec.ts

Adding providers to DI

Most of the helpers accepts option providers which allows to redefine already existing providers or add new.

For example, passing providers to helper testAction allows to access this provider inside action itself:

import { declareAction } from '@tramvai/core';
import { testAction } from '@tramvai/test-unit';

const action = declareAction({
  name: 'action',
  fn() {
    console.log(this.deps.test); // token value
  },
  deps: {
    test: 'token name',
  },
});

it('test', async () => {
  const { run } = testAction(action, {
    providers: [
      {
        provide: 'token name',
        useValue: 'token value',
      },
    ],
  });
});

Create app only for testing

import { createTestApp } from '@tramvai/test-unit';

it('test', async () => {
  const { app } = await createTestApp({ modules: [TestModule, DependentModule] });

  // get tokens from di implemented by module
  expect(app.di.get('testToken')).toEqual({ a: 1 });
});

@inline src/app/createTestApp.spec.ts

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1.50.0

4 years ago

1.50.3

3 years ago

1.50.2

3 years ago

1.54.0

3 years ago

1.50.4

3 years ago

1.37.1

4 years ago

1.44.4

4 years ago

1.48.2

4 years ago

1.48.1

4 years ago

1.44.5

4 years ago

1.29.1

4 years ago

1.29.4

4 years ago

1.29.2

4 years ago

1.29.3

4 years ago

1.32.1

4 years ago

1.34.0

4 years ago

1.38.0

4 years ago

1.41.0

4 years ago

1.41.2

4 years ago

1.45.0

4 years ago

1.26.1

4 years ago

1.46.11

4 years ago

1.46.10

4 years ago

1.35.1

4 years ago

1.39.1

4 years ago

1.35.6

4 years ago

1.39.0

4 years ago

1.35.4

4 years ago

1.35.8

4 years ago

1.46.6

4 years ago

1.35.10

4 years ago

1.27.0

4 years ago

1.46.5

4 years ago

1.46.8

4 years ago

1.46.7

4 years ago

1.46.9

4 years ago

1.30.2

4 years ago

1.30.0

4 years ago

1.30.1

4 years ago

1.36.0

4 years ago

1.47.0

4 years ago

1.28.2

4 years ago

1.28.0

4 years ago

1.28.4

4 years ago

1.31.1

4 years ago

1.31.0

4 years ago

1.25.4

4 years ago

1.25.0

4 years ago

1.25.1

4 years ago

1.23.0

4 years ago

1.22.2

4 years ago

1.14.1

4 years ago

1.14.0

4 years ago

1.10.3

4 years ago

1.12.0

4 years ago

1.10.2

4 years ago

1.11.0

4 years ago

1.15.0

4 years ago

1.13.1

4 years ago

1.13.0

4 years ago

1.11.1

4 years ago

1.15.2

4 years ago

1.15.1

4 years ago

1.9.11

4 years ago

1.10.0

4 years ago

1.9.10

4 years ago

1.9.9

4 years ago

1.9.8

4 years ago

1.9.7

4 years ago

1.9.6

4 years ago

1.9.1

4 years ago

1.9.5

4 years ago

1.9.4

4 years ago

1.9.3

4 years ago

1.9.2

4 years ago

1.9.0

4 years ago

1.8.8

4 years ago

1.8.7

4 years ago

1.8.6

4 years ago

1.8.5

4 years ago

1.8.4

4 years ago

1.8.2

4 years ago

1.8.1

4 years ago

1.8.0

4 years ago

1.7.8

4 years ago

1.7.7

4 years ago

1.8.3

4 years ago

1.7.3

4 years ago

1.7.6

4 years ago

1.7.5

4 years ago

1.7.4

4 years ago

1.7.1

4 years ago

1.7.0

4 years ago

1.6.0

4 years ago

1.5.0

4 years ago

1.4.0

4 years ago

1.2.4

4 years ago

1.2.3

4 years ago

1.3.0

4 years ago

1.2.0

4 years ago

1.2.2

4 years ago

1.2.1

4 years ago

1.1.2

4 years ago

1.1.1

4 years ago

1.1.0

4 years ago

1.0.10

4 years ago

1.0.9

4 years ago

1.0.8

4 years ago

1.0.7

4 years ago

1.0.6

4 years ago

1.0.0

4 years ago