### Raise Coverage and Enhance Testing
Increased coverage thresholds to 90% across all metrics. Added exclusions for `.spec.ts` and `.test.ts` files to the coverage configuration. Introduced new test files for `Decorators` and `Functions`, incorporating detailed unit tests for decorators and DI functionalities. Removed outdated and redundant test files, consolidating their functionality into the updated tests. Also added new npm script for jest watch mode. Marked helper and main index files to be ignored by the coverage.
This commit is contained in:
Max P.
262
src/__tests__/Decorators.spec.ts
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262
src/__tests__/Decorators.spec.ts
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/* eslint-disable @typescript-eslint/no-explicit-any */
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import { Inject } from 'src/decorators/Inject';
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import { DependencyResolutionError } from 'src/interfaces/Exceptions';
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import { ForceConstructor } from 'src/types/GenericContructor';
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import { ITSinjex_, ITSinjex } from '../interfaces/ITSinjex';
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/**
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* Test the Inject decorator.
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* @param Container The implementation to test.
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* @param inject The Inject decorator to test.
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*/
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export function test_InjectDecorator(
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Container: ITSinjex_,
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// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
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inject: Function,
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): void {
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describe('Inject Decorator Tests', () => {
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let container: ITSinjex;
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beforeEach(() => {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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(Container as any)['_instance'] = undefined;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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(Container as any)['_dependencies'] = undefined;
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container = Container.getInstance();
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});
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it('should inject dependency when necessary is true', () => {
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container.register('MockDependencyIdentifier', {
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value: 'test-value',
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});
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class TestClass {
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@Inject('MockDependencyIdentifier')
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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}
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const instance = new TestClass();
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expect(instance.getDependency().value).toBe('test-value');
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});
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it('should inject dependency and run initializer', () => {
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container.register('MockDependencyIdentifier', {
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value: 'test-value',
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});
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class TestClass {
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@Inject('MockDependencyIdentifier', (x: string) => {
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(x as unknown as { value: string }).value =
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'test-value-init';
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return x;
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})
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dependency!: any;
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public getDependency() {
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return this.dependency;
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}
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}
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const instance = new TestClass();
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expect(instance.getDependency().value).toBe('test-value-init');
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});
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it('should throw an error when necessary is true and the initializer throws an error', () => {
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let _error: Error | undefined = undefined;
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container.register('InitThrowDependencie', {
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value: 'test-value',
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});
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try {
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class TestClass {
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@Inject(
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'InitThrowDependencie',
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() => {
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throw new Error('Initializer error');
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},
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true,
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)
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dependency!: any;
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public getDependency() {
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return this.dependency;
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}
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}
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const _instance = new TestClass();
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console.log(_instance.getDependency());
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} catch (error) {
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_error = error;
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}
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expect(_error).toBeInstanceOf(Error);
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});
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it('should throw an error when necessary is true and dependency is not found', () => {
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let _error: Error | undefined = undefined;
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try {
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class TestClass {
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@Inject('NonExistentDependencyIdentifier')
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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}
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const _instance = new TestClass();
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console.log(_instance.getDependency());
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} catch (error) {
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_error = error;
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}
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expect(_error).toBeInstanceOf(DependencyResolutionError);
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});
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});
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}
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export function test_RegisterDecorator(
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Container: ITSinjex_,
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// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
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register: Function,
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): void {
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describe('Register Decorator Tests', () => {
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let container: ITSinjex;
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beforeEach(() => {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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(Container as any)['_instance'] = undefined;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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(Container as any)['_dependencies'] = undefined;
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container = Container.getInstance();
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});
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it('should register a dependency', () => {
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@register('MockDependencyIdentifier')
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class TestClass {
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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}
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expect(container.resolve('MockDependencyIdentifier')).toBe(
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TestClass,
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);
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});
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});
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}
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export function test_RegisterInstanceDecorator(
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Container: ITSinjex_,
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// eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
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registerInstance: Function,
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): void {
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describe('RegisterInstance Decorator Tests', () => {
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let container: ITSinjex;
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beforeEach(() => {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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(Container as any)['_instance'] = undefined;
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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(Container as any)['_dependencies'] = undefined;
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container = Container.getInstance();
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});
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it('should register an instance of a dependency', () => {
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@registerInstance('InstanceIdentifier')
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class TestClass {
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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public mark: string = 'instance';
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}
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expect(
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container.resolve<TestClass>('InstanceIdentifier').mark,
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).toBe('instance');
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});
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it('should register an instance of a dependency an run the init function', () => {
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@registerInstance(
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'InstanceIdentifier',
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(x: ForceConstructor<TestClass>) => {
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const instance = new x();
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instance.mark = 'init';
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return instance;
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},
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)
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class TestClass {
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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public mark: string = 'instance';
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}
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expect(
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container.resolve<TestClass>('InstanceIdentifier').mark,
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).toBe('init');
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});
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it('should register an instance of a dependency and get it on set', () => {
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@registerInstance('InstanceIdentifier')
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class TestClass {
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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public mark: string = 'instance';
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public test: string = 'test';
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}
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container.resolve<TestClass>('InstanceIdentifier').test = 'test2';
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expect(
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container.resolve<TestClass>('InstanceIdentifier').test,
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).toBe('test2');
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});
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it('should register an instance of a dependency an run the init function on set', () => {
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@registerInstance(
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'InstanceIdentifier',
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(x: ForceConstructor<TestClass>) => {
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const instance = new x();
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instance.mark = 'init';
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return instance;
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},
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)
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class TestClass {
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private readonly _dependency!: any;
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public getDependency() {
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return this._dependency;
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}
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public mark: string = 'instance';
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public test: string = 'test';
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}
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container.resolve<TestClass>('InstanceIdentifier').test = 'test2';
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expect(
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container.resolve<TestClass>('InstanceIdentifier').test,
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).toBe('test2');
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});
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});
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}
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