add tests to tsconfig for checking

Author: keithamus

package.json

@@ -23,9 +23,9 @@
     "lib"
   ],
   "scripts": {
-    "build": "tsc --build",
+    "build": "tsc --build tsconfig.build.json",
     "build:docs": "cd docs && JEKYLL_ENV=production bundle exec jekyll build",
-    "clean": "tsc --build --clean",
+    "clean": "tsc --build --clean tsconfig.build.json",
     "lint": "eslint . --ignore-path .gitignore",
     "prepack": "npm run build",
     "presize": "npm run build",

tsconfig.build.json

@@ -0,0 +1,10 @@
+{
+  "exclude": ["test"],
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "declaration": true,
+    "declarationMap": true,
+    "outDir": "./lib",
+    "noEmit": false
+  }
+}

tsconfig.json

@@ -1,16 +1,13 @@
 {
-  "include": ["src"],
+  "include": ["src", "test"],
   "compilerOptions": {
     "baseUrl": ".",
-    "declaration": true,
-    "declarationMap": true,
     "esModuleInterop": true,
     "experimentalDecorators": true,
     "lib": ["es6", "dom", "dom.iterable"],
     "module": "ESNext",
     "moduleResolution": "node",
-    "noEmit": false,
-    "outDir": "./lib",
+    "noEmit": true,
     "sourceMap": true,
     "strict": true,
     "target": "ES2020"