Files
privacy.sexy/tests/unit/presentation/bootstrapping/ApplicationBootstrapper.spec.ts
undergroundwires 7770a9b521 Refactor DI for simplicity and type safety
This commit improves the dependency injection mechanism by introducing a
custom `injectKey` function.

Key improvements are:

- Enforced type consistency during dependency registration and
  instantiation.
- Simplified injection process, abstracting away the complexity with a
  uniform API, regardless of the dependency's lifetime.
- Eliminated the possibility of `undefined` returns during dependency
  injection, promoting fail-fast behavior.
- Removed the necessity for type casting to `symbol` for injection keys
  in unit tests by using existing types.
- Consalidated imports, combining keys and injection functions in one
  `import` statement.
2023-11-09 13:17:38 +01:00

57 lines
2.0 KiB
TypeScript

import { describe, it, expect } from 'vitest';
import { BootstrapperStub } from '@tests/unit/shared/Stubs/BootstrapperStub';
import { ApplicationBootstrapper } from '@/presentation/bootstrapping/ApplicationBootstrapper';
import { expectThrowsAsync } from '@tests/shared/Assertions/ExpectThrowsAsync';
import type { App } from 'vue';
describe('ApplicationBootstrapper', () => {
it('calls bootstrap on each bootstrapper', async () => {
// arrange
const bootstrapper1 = new BootstrapperStub();
const bootstrapper2 = new BootstrapperStub();
const sut = new ApplicationBootstrapper([bootstrapper1, bootstrapper2]);
// act
await sut.bootstrap({} as App);
// assert
expect(bootstrapper1.callHistory.map((c) => c.methodName === 'bootstrap')).to.have.lengthOf(1);
expect(bootstrapper2.callHistory.map((c) => c.methodName === 'bootstrap')).to.have.lengthOf(1);
});
it('calls bootstrap in the correct order', async () => {
// arrange
const callOrder: number[] = [];
const bootstrapper1 = {
async bootstrap(): Promise<void> {
callOrder.push(1);
},
};
const bootstrapper2 = {
async bootstrap(): Promise<void> {
callOrder.push(2);
},
};
const sut = new ApplicationBootstrapper([bootstrapper1, bootstrapper2]);
// act
await sut.bootstrap({} as App);
// assert
expect(callOrder).to.deep.equal([1, 2]);
});
it('stops if a bootstrapper fails', async () => {
// arrange
const expectedError = 'Bootstrap failed';
const bootstrapper1 = {
async bootstrap(): Promise<void> {
throw new Error(expectedError);
},
};
const bootstrapper2 = new BootstrapperStub();
const sut = new ApplicationBootstrapper([bootstrapper1, bootstrapper2]);
// act
const act = async () => { await sut.bootstrap({} as App); };
// assert
await expectThrowsAsync(act, expectedError);
expect(bootstrapper2.callHistory.map((c) => c.methodName === 'bootstrap')).to.have.lengthOf(0);
});
});