Verify Production Types in Travis CI

.travis.yml

@@ -22,6 +22,12 @@ matrix:
       install: npm i
       script: npm run lint
 
+    #TODO(issues/936): Fix existing errors before requiring this to pass
+    #- node_js: 10
+    #  env: TEST_SUITE=types
+    #  install: npm i
+    #  script: npm run test:types
+
     - node_js: 10
       install: npm i
       services:

docs/contributions/running-tests.md

@@ -63,3 +63,13 @@ npm run lint
 ```
 
 This will print any lines that do not follow the eslint standards, which you will need to fix before opeing a PR.
+
+## Type Tests
+
+Due to [multiple issues in production type files](https://github.com/material-components/material-components-web-react/issues/936) an easy way to [validate production type files has been added](https://github.com/material-components/material-components-web-react/pull/900):
+
+```bash
+npm run test:types
+```
+
+This command will perform a full production build, install the locally built versions, [generate a file that imports them all](../../test/types/gen-index.js), and then build it to expose any issues in the locally built `.d.ts` files.

package.json

@@ -19,6 +19,7 @@
     "test:unit-ci": "karma start karma.ci.js --single-run",
     "test:image-diff": "MDC_COMMIT_HASH=$(git rev-parse --short HEAD) MDC_BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD) mocha --require ts-node/register --require babel-core/register --ui tdd --timeout 60000 test/screenshot/diff-suite.tsx",
     "test:screenshots": "docker run -it --rm --cap-add=SYS_ADMIN -e MDC_GCLOUD_SERVICE_ACCOUNT_KEY=\"${MDC_GCLOUD_SERVICE_ACCOUNT_KEY}\" mdcreact/screenshots /bin/sh -c 'git checkout .; git checkout master; git pull; npm i; /home/pptruser/material-components-web-react/test/screenshot/start.sh; sleep 40s; npm run test:image-diff'",
+    "test:types": "npm run build && node scripts/release/cp-pkgs.js && rm -rf packages/*/node_modules && npm install packages/ripple && ls -d ./packages/*/ | xargs -n1 -I{} npm install {} && node test/types/gen-index.js && cp tsconfig.json test/types/tsconfig.json && tsc --project test/types",
     "upload:screenshots": "node ./test/screenshot/upload-screenshots.js"
   },
   "config": {

test/types/gen-index.js

@@ -0,0 +1,38 @@
+// The MIT License
+//
+// Copyright (c) 2019 Google, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+/**
+ * @fileoverview Generates index.ts file with imports for all repo packages.
+ */
+
+const {join} = require('path');
+const {readdirSync, statSync, writeFileSync} = require('fs');
+
+let out = 'import "react";\n';
+const dir = 'packages';
+for (const subdir of readdirSync(dir)) {
+  if (!statSync(join(dir, subdir)).isDirectory()) {
+    continue;
+  }
+  out += 'import "@material/react-' + subdir + '";\n';
+}
+writeFileSync('test/types/index.ts', out, 'ascii');