@swarmion/serverless-contracts/test-utils.js

Generate and use type-safe contracts between your Serverless services.

// src/contracts/apiGateway/testUtils/mockHandlerInput.ts
import { JSONSchemaFaker } from "json-schema-faker";
import seedrandom from "seedrandom";
import {
  getAPIGatewayEventRequestContextMock,
  getAPIGatewayV2EventRequestContextMock
} from "@swarmion/serverless-helpers";

// src/contracts/apiGateway/utils/mockHandlerContext.ts
var getHandlerContextMock = (args) => (
  // @ts-expect-error only partial typing here
  {
    callbackWaitsForEmptyEventLoop: false,
    functionName: "",
    functionVersion: "",
    invokedFunctionArn: "",
    memoryLimitInMB: "",
    awsRequestId: "",
    logGroupName: "",
    logStreamName: "",
    ...args
  }
);

// src/contracts/apiGateway/testUtils/utils/deepMerge.ts
import _ from "lodash";
var deepMerge = (left, right) => _.mergeWith(left, right, keepUnchangedRefsOnly);
var keepUnchangedRefsOnly = (objValue, srcValue) => {
  if (_.isPlainObject(objValue)) {
    return _.assignWith({}, objValue, srcValue, keepUnchangedRefsOnly);
  }
  return void 0;
};

// src/contracts/apiGateway/testUtils/mockHandlerInput.ts
var seed = "MySuperSwarmionSeed";
var setMockHandlerInputSeed = (inputSeed) => {
  seed = inputSeed;
};
var getMockHandlerInput = (contract, partialEvent = {}, ...additionalArgs) => {
  JSONSchemaFaker.option({ random: seedrandom(seed) });
  const defaultBody = getFakerDefault(contract.bodySchema);
  const defaultPathParameters = getFakerDefault(
    contract.pathParametersSchema
  );
  const defaultQueryStringParameters = getFakerDefault(
    contract.queryStringParametersSchema
  );
  const defaultHeaders = getFakerDefault(contract.headersSchema);
  const defaultRequestContext = contract.integrationType === "restApi" ? getAPIGatewayEventRequestContextMock() : getAPIGatewayV2EventRequestContextMock();
  const defaultCustomRequestContext = getFakerDefault(contract.requestContextSchema) ?? {};
  const defaultEvent = {
    pathParameters: defaultPathParameters,
    queryStringParameters: defaultQueryStringParameters,
    headers: defaultHeaders,
    body: defaultBody,
    requestContext: deepMerge(
      defaultRequestContext,
      defaultCustomRequestContext
    )
  };
  const event = deepMerge(defaultEvent, partialEvent);
  const stringifiedEvent = {
    ...event,
    body: event.body !== void 0 ? JSON.stringify(event.body) : void 0
  };
  return [
    stringifiedEvent,
    getHandlerContextMock(),
    () => null,
    ...additionalArgs
  ];
};
var getFakerDefault = (schema) => schema !== void 0 ? JSONSchemaFaker.generate(schema) : void 0;
export {
  getMockHandlerInput,
  setMockHandlerInputSeed
};