@studyportals/sp-r2d2/environment-tests/execution-environments/dynamodb/event-translation/dynamo-db-stream-event-translator.test.js

A framework that contains various components used when developing projects that will be deployed via AWS λ.

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const mocha_1 = require("@testdeck/mocha");
const Moq = require("typemoq");
const chai_1 = require("chai");
const dynamo_db_stream_event_translator_class_1 = require("../../../../environment/execution-environments/dynamodb/event-translation/dynamo-db-stream-event-translator.class");
const environment_1 = require("../../../../environment");
let DynamoDBStreamEventTranslatorTest = class DynamoDBStreamEventTranslatorTest {
    get streamRecordMock() {
        return this._streamRecordMock;
    }
    get streamRecord() {
        return this.streamRecordMock.object;
    }
    get dynamoDBStreamRecordMock() {
        return this._dynamoDBStreamRecordMock;
    }
    get dynamoDBStreamRecord() {
        return this.dynamoDBStreamRecordMock.object;
    }
    get dynamoDBStreamEventMock() {
        return this._dynamoDBStreamEventMock;
    }
    get dynamoDBStreamEvent() {
        return this.dynamoDBStreamEventMock.object;
    }
    get testInstanceMock() {
        return this._testInstanceMock;
    }
    get testInstance() {
        return this.testInstanceMock.object;
    }
    before() {
        this._streamRecordMock = Moq.Mock.ofType();
        this._dynamoDBStreamRecordMock = Moq.Mock.ofType();
        this._dynamoDBStreamEventMock = Moq.Mock.ofType();
        this._testInstanceMock = Moq.Mock.ofType(dynamo_db_stream_event_translator_class_1.DynamoDBStreamEventTranslator);
        this.testInstanceMock.callBase = true;
    }
    translate_OneRecord_DeserializedString() {
        return __awaiter(this, void 0, void 0, function* () {
            const expectedData = { SomeProperty: 'SomeValue' };
            const rawData = { SomeProperty: { S: 'SomeValue' } };
            this.dynamoDBStreamEventMock.setup((_) => _.Records).returns(() => [this.dynamoDBStreamRecord]);
            this.dynamoDBStreamRecordMock.setup((_) => _.dynamodb).returns(() => this.streamRecord);
            this.streamRecordMock.setup((_) => _.NewImage).returns(() => rawData);
            const result = yield this.testInstance.translate(this.dynamoDBStreamEvent);
            chai_1.assert.deepEqual(result.data.Records[0].dynamodb.NewImage, expectedData);
        });
    }
    translate_OneRecord_DeserializedNumber() {
        return __awaiter(this, void 0, void 0, function* () {
            const expectedData = { SomeProperty: 123 };
            const rawData = { SomeProperty: { N: '123' } };
            this.dynamoDBStreamEventMock.setup((_) => _.Records).returns(() => [this.dynamoDBStreamRecord]);
            this.dynamoDBStreamRecordMock.setup((_) => _.dynamodb).returns(() => this.streamRecord);
            this.streamRecordMock.setup((_) => _.NewImage).returns(() => rawData);
            const result = yield this.testInstance.translate(this.dynamoDBStreamEvent);
            chai_1.assert.deepEqual(result.data.Records[0].dynamodb.NewImage, expectedData);
        });
    }
    translate_OneRecord_NoBody() {
        return __awaiter(this, void 0, void 0, function* () {
            const expectedData = 'SomeEventID';
            this.dynamoDBStreamEventMock.setup((_) => _.Records).returns(() => [this.dynamoDBStreamRecord]);
            this.dynamoDBStreamRecordMock.setup((_) => _.eventID).returns(() => expectedData);
            const result = yield this.testInstance.translate(this.dynamoDBStreamEvent);
            chai_1.assert.deepEqual(result.data.Records[0].eventID, expectedData);
            chai_1.assert.deepEqual(result.data.Records[0].dynamodb, undefined);
        });
    }
    translate_MultipleRecords_DeserializedMixed() {
        return __awaiter(this, void 0, void 0, function* () {
            const expectedDataString = { SomeProperty: 'SomeValue' };
            const expectedDataNumber = { SomeProperty: 123 };
            const rawDataString = { SomeProperty: { S: 'SomeValue' } };
            const rawDataNumber = { SomeProperty: { N: '123' } };
            this.dynamoDBStreamEventMock
                .setup((_) => _.Records)
                .returns(() => [this.dynamoDBStreamRecord, this.dynamoDBStreamRecord]);
            this.dynamoDBStreamRecordMock.setup((_) => _.dynamodb).returns(() => this.streamRecord);
            this.streamRecordMock.setup((_) => _.NewImage).returns(() => rawDataString);
            this.streamRecordMock.setup((_) => _.OldImage).returns(() => rawDataNumber);
            const result = yield this.testInstance.translate(this.dynamoDBStreamEvent);
            chai_1.assert.deepEqual(result.data.Records[0].dynamodb.NewImage, expectedDataString);
            chai_1.assert.deepEqual(result.data.Records[0].dynamodb.OldImage, expectedDataNumber);
            chai_1.assert.deepEqual(result.data.Records[1].dynamodb.NewImage, expectedDataString);
            chai_1.assert.deepEqual(result.data.Records[1].dynamodb.OldImage, expectedDataNumber);
        });
    }
    translate_NoRecords_EventTranslationError() {
        return __awaiter(this, void 0, void 0, function* () {
            this.dynamoDBStreamEventMock.setup((_) => _.Records).returns(() => []);
            let receivedError;
            try {
                yield this.testInstance.translate(this.dynamoDBStreamEvent);
            }
            catch (e) {
                receivedError = e;
            }
            chai_1.assert.instanceOf(receivedError, environment_1.EventTranslationError);
        });
    }
};
__decorate([
    mocha_1.test
], DynamoDBStreamEventTranslatorTest.prototype, "translate_OneRecord_DeserializedString", null);
__decorate([
    mocha_1.test
], DynamoDBStreamEventTranslatorTest.prototype, "translate_OneRecord_DeserializedNumber", null);
__decorate([
    mocha_1.test
], DynamoDBStreamEventTranslatorTest.prototype, "translate_OneRecord_NoBody", null);
__decorate([
    mocha_1.test
], DynamoDBStreamEventTranslatorTest.prototype, "translate_MultipleRecords_DeserializedMixed", null);
__decorate([
    mocha_1.test
], DynamoDBStreamEventTranslatorTest.prototype, "translate_NoRecords_EventTranslationError", null);
DynamoDBStreamEventTranslatorTest = __decorate([
    (0, mocha_1.suite)()
], DynamoDBStreamEventTranslatorTest);
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