Add buildspec.yml to orchestrate pull request testing (#61)

* Add buildspec.yml to orchestrate pull request testing

* Ensure all packages have the correct types at their disposal

* Prep SNS Message validator for upgrade to Jest 21 and ensure the CPU-intensive test has an adequate timeout

* Ensure everything still compiles even with TypeScript 2.6's strict function types

* Match any 32-char hex string for temp directories rather than mocking out crypto.randomBytes

Author: jeskew

packages/shared-ini-file-loader/src/index.spec.ts

@@ -9,7 +9,7 @@ jest.mock('fs', () => {
     interface FsModule {
         __addMatcher(toMatch: string, toReturn: string): void;
         __clearMatchers(): void;
-        readFile: (path: string, encoding: string, cb: Function) => void
+        readFile: (path: string, encoding: string, cb: (err: Error|null, data?: string) => void) => void
     }
 
     const fs: FsModule = <FsModule>jest.genMockFromModule('fs');

packages/signature-v4/src/SignatureV4.spec.ts

@@ -18,7 +18,6 @@ import {
 import {Sha256} from "@aws/crypto-sha256-node";
 import {Credentials, HttpRequest} from "@aws/types";
 import {iso8601} from "@aws/protocol-timestamp";
-import {PassThrough} from 'stream';
 
 const signer = new SignatureV4({
     service: 'foo',
@@ -45,6 +44,11 @@ const credentials: Credentials = {
     secretAccessKey: 'bar',
 };
 
+/**
+ * An environment specific stream that the signer knows nothing about.
+ */
+class ExoticStream {}
+
 describe('SignatureV4', () => {
     describe('#presignRequest', () => {
         const expiration = Math.floor(
@@ -109,7 +113,7 @@ describe('SignatureV4', () => {
             const {query} = await signer.presignRequest({
                 request: {
                     ...minimalRequest,
-                    body: new PassThrough()
+                    body: new ExoticStream()
                 },
                 expiration,
                 signingDate: new Date('2000-01-01T00:00:00.000Z'),
@@ -317,7 +321,7 @@ describe('SignatureV4', () => {
             const {headers} = await signer.signRequest({
                 request: {
                     ...minimalRequest,
-                    body: new PassThrough(),
+                    body: new ExoticStream(),
                 },
                 signingDate: new Date('2000-01-01T00:00:00.000Z'),
             });

packages/signature-v4/src/getPayloadHash.spec.ts

@@ -2,7 +2,6 @@ import {getPayloadHash} from "./getPayloadHash";
 import {SHA256_HEADER, UNSIGNED_PAYLOAD} from "./constants";
 import {HttpRequest} from "@aws/types";
 import {Sha256} from "@aws/crypto-sha256-node";
-import {PassThrough} from 'stream';
 
 describe('getPayloadHash', () => {
     const minimalRequest: HttpRequest<any> = {
@@ -79,10 +78,15 @@ describe('getPayloadHash', () => {
     it(
         `should return ${UNSIGNED_PAYLOAD} if the request has a streaming body and no stream collector is provided`,
         async () => {
+            /**
+             * An environment specific stream that the signer knows nothing about.
+             */
+            class ExoticStream {}
+
             await expect(getPayloadHash(
                 {
                     ...minimalRequest,
-                    body: new PassThrough(),
+                    body: new ExoticStream(),
                 },
                 Sha256
             )).resolves.toBe(UNSIGNED_PAYLOAD);