68 lines
2.1 KiB
TypeScript
68 lines
2.1 KiB
TypeScript
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import { ROUTE_ARGS_METADATA } from '@nestjs/common/constants'
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import { HttpArgumentsHost, CustomParamFactory, ExecutionContext } from '@nestjs/common/interfaces'
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import { Request } from 'express'
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import { Paginate, PaginateQuery } from './decorator'
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function getParamDecoratorFactory<T>(decorator: Function): CustomParamFactory {
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class Test {
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public test(@decorator() _value: T): void {
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//
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}
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}
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const args = Reflect.getMetadata(ROUTE_ARGS_METADATA, Test, 'test')
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return args[Object.keys(args)[0]].factory
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}
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const decoratorfactory = getParamDecoratorFactory<PaginateQuery>(Paginate)
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function contextFactory(query: Request['query']): Partial<ExecutionContext> {
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const mockContext: Partial<ExecutionContext> = {
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switchToHttp: (): HttpArgumentsHost =>
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Object({
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getRequest: (): Partial<Request> =>
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Object({
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protocol: 'http',
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get: () => 'localhost',
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baseUrl: '/items',
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path: '/all',
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query: query,
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}),
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}),
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}
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return mockContext
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}
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describe('Decorator', () => {
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it('should handle undefined query fields', () => {
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const context = contextFactory({})
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const result: PaginateQuery = decoratorfactory(null, context)
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expect(result).toStrictEqual({
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page: undefined,
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limit: undefined,
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sortBy: undefined,
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path: 'http://localhost/items/all',
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})
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})
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it('should handle defined query fields', () => {
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const context = contextFactory({
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page: '1',
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limit: '20',
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sortBy: ['id:ASC', 'createdAt:DESC'],
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})
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const result: PaginateQuery = decoratorfactory(null, context)
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expect(result).toStrictEqual({
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page: 1,
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limit: 20,
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sortBy: [
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['id', 'ASC'],
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['createdAt', 'DESC'],
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],
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path: 'http://localhost/items/all',
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})
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})
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})
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