chore: test for typescript project references

.gitignore

@@ -39,6 +39,10 @@ jspm_packages/
 # TypeScript v1 declaration files
 typings/
 
+# TypeScript incremental build products
+dist/
+tsconfig.tsbuildinfo
+
 # Optional npm cache directory
 .npm
 

tests/typescript-project-references/lib-bar/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "lib-bar",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "license": "MIT"
+}

tests/typescript-project-references/lib-bar/src/index.ts

@@ -0,0 +1 @@
+export const getMeaningOfLife = () => "42, so they tell me";

tests/typescript-project-references/lib-bar/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "extends": "../tsconfig-base.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src"
+  },
+  "include": ["src/"]
+}

tests/typescript-project-references/service-foo/package.json

@@ -0,0 +1,9 @@
+{
+  "name": "service-foo",
+  "version": "1.0.0",
+  "main": "dist/index.js",
+  "license": "MIT",
+  "dependencies": {
+    "lib-bar": "file:../lib-bar"
+  }
+}

tests/typescript-project-references/service-foo/serverless.yml

@@ -0,0 +1,12 @@
+service: service-foo
+
+plugins:
+  - '../../../index'
+
+provider:
+  name: aws
+  runtime: nodejs10.x
+
+functions:
+  hello:
+    handler: src/handler.hello

tests/typescript-project-references/service-foo/src/handler.ts

@@ -0,0 +1,11 @@
+import { getMeaningOfLife } from "lib-bar";
+
+export const hello = async (event: any) => {
+  return {
+    statusCode: 200,
+    body: JSON.stringify({
+      message: getMeaningOfLife(),
+      input: event
+    })
+  };
+};

tests/typescript-project-references/service-foo/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../tsconfig-base.json",
+  "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src"
+  },
+  "include": ["src/"],
+  "references": [{ "path": "../lib-bar" }]
+}

tests/typescript-project-references/tsconfig-base.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "baseUrl": ".",
+    "target": "es6",
+    "moduleResolution": "node",
+    "composite": true,
+    "incremental": true
+  }
+}

tests/typescript-project-references/typescript-project-references.test.js

@@ -0,0 +1,16 @@
+const { runSlsCommand, clearNpmCache } = require("../helpers");
+const { join } = require("path");
+
+beforeEach(async () => {
+  await clearNpmCache(__dirname);
+});
+
+afterAll(async () => {
+  await clearNpmCache(__dirname);
+});
+
+test("typescript-project-references", async () => {
+  const result = await runSlsCommand(join(__dirname, "service-foo"));
+
+  expect(result).toContain("42, so they tell me");
+});