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test(dynamodb): added tests for dynamo db adapter and improved other …
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| import { DynamoDBStreamEvent } from 'aws-lambda'; | ||
| import { DynamoDBAdapter } from '../../../src/v2/adapters/aws'; | ||
| import { Resolver } from '../../../src/v2/contracts'; | ||
| import { | ||
| EmptyResponse, | ||
| getEventBodyAsBuffer, | ||
| IEmptyResponse, | ||
| ILogger, | ||
| } from '../../../src/v2/core'; | ||
| import { createCanHandleTestsForAdapter } from '../utils/can-handle'; | ||
| import { createDynamoDBEvent } from './utils/dynamodb'; | ||
|
|
||
| describe(DynamoDBAdapter.name, () => { | ||
| let adapter!: DynamoDBAdapter; | ||
|
|
||
| beforeEach(() => { | ||
| adapter = new DynamoDBAdapter(); | ||
| }); | ||
|
|
||
| describe('getAdapterName', () => { | ||
| it('should be the same name of the class', () => { | ||
| expect(adapter.getAdapterName()).toBe(DynamoDBAdapter.name); | ||
| }); | ||
| }); | ||
|
|
||
| createCanHandleTestsForAdapter(() => new DynamoDBAdapter(), undefined); | ||
|
|
||
| describe('getRequest', () => { | ||
| it('should return the correct mapping for the request', () => { | ||
| const event = createDynamoDBEvent(); | ||
|
|
||
| const result = adapter.getRequest(event); | ||
|
|
||
| expect(result.method).toBe('POST'); | ||
| expect(result.path).toBe('/dynamo'); | ||
| expect(result.headers).toHaveProperty('host', 'dynamodb.amazonaws.com'); | ||
| expect(result.headers).toHaveProperty('content-type', 'application/json'); | ||
|
|
||
| const [bodyBuffer, contentLength] = getEventBodyAsBuffer( | ||
| JSON.stringify(event), | ||
| false | ||
| ); | ||
|
|
||
| expect(result.body).toBeInstanceOf(Buffer); | ||
| expect(result.body).toStrictEqual(bodyBuffer); | ||
|
|
||
| expect(result.headers).toHaveProperty( | ||
| 'content-length', | ||
| String(contentLength) | ||
| ); | ||
| }); | ||
|
|
||
| it('should return the correct mapping for the request with custom path and method', () => { | ||
| const event = createDynamoDBEvent(); | ||
|
|
||
| const method = 'PUT'; | ||
| const path = '/custom/dynamo'; | ||
|
|
||
| const customAdapter = new DynamoDBAdapter({ | ||
| dynamoDBForwardMethod: method, | ||
| dynamoDBForwardPath: path, | ||
| }); | ||
|
|
||
| const result = customAdapter.getRequest(event); | ||
|
|
||
| expect(result.method).toBe(method); | ||
| expect(result.path).toBe(path); | ||
| expect(result.headers).toHaveProperty('host', 'dynamodb.amazonaws.com'); | ||
| expect(result.headers).toHaveProperty('content-type', 'application/json'); | ||
|
|
||
| const [bodyBuffer, contentLength] = getEventBodyAsBuffer( | ||
| JSON.stringify(event), | ||
| false | ||
| ); | ||
|
|
||
| expect(result.body).toBeInstanceOf(Buffer); | ||
| expect(result.body).toStrictEqual(bodyBuffer); | ||
|
|
||
| expect(result.headers).toHaveProperty( | ||
| 'content-length', | ||
| String(contentLength) | ||
| ); | ||
| }); | ||
| }); | ||
|
|
||
| describe('getResponse', () => { | ||
| it('should return the correct mapping for the response', () => { | ||
| const result = adapter.getResponse(); | ||
|
|
||
| expect(result).toBe(EmptyResponse); | ||
| }); | ||
| }); | ||
|
|
||
| describe('onErrorWhileForwarding', () => { | ||
| it('should resolver call succeed', () => { | ||
| const event = createDynamoDBEvent(); | ||
|
|
||
| const error = new Error('fail because I need to test.'); | ||
| const resolver: Resolver<DynamoDBStreamEvent> = { | ||
| fail: jest.fn(), | ||
| succeed: jest.fn(), | ||
| }; | ||
|
|
||
| const oldGetResponse = adapter.getResponse.bind(adapter); | ||
|
|
||
| let getResponseResult: IEmptyResponse; | ||
|
|
||
| adapter.getResponse = jest.fn(() => { | ||
| getResponseResult = oldGetResponse(); | ||
|
|
||
| return getResponseResult; | ||
| }); | ||
|
|
||
| adapter.onErrorWhileForwarding({ | ||
| event, | ||
| error, | ||
| resolver, | ||
| log: {} as ILogger, | ||
| respondWithErrors: false, | ||
| }); | ||
|
|
||
| // eslint-disable-next-line @typescript-eslint/unbound-method | ||
| expect(adapter.getResponse).toHaveBeenCalledTimes(0); | ||
|
|
||
| expect(resolver.fail).toHaveBeenCalledTimes(1); | ||
| expect(resolver.succeed).toHaveBeenCalledTimes(0); | ||
| }); | ||
| }); | ||
| }); |
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