test: add test for optimized output (#373)

Author: jkrems

.github/workflows/ci.yaml

@@ -80,3 +80,12 @@ jobs:
           node-version: 14
       - run: npm install
       - run: npm run test:typescript
+  optimize:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+      - run: cd test/tscc && npm install && npx @tscc/tscc
+      - run: cd test/tscc && node out.js

test/tscc/.gitignore

@@ -0,0 +1 @@
+*.js

test/tscc/lib

@@ -0,0 +1 @@
+../../lib

test/tscc/optimized.ts

@@ -0,0 +1,47 @@
+import { YargsParser } from './lib/yargs-parser'
+
+const parser = new YargsParser({
+  cwd: () => { return '' },
+  format: (str, arg) => { return str.replace('%s', arg) },
+  normalize: (str) => { return str },
+  resolve: (str) => { return str },
+  require: () => {
+    throw Error('loading config from files not currently supported in browser')
+  },
+  env: () => {}
+})
+
+// Workaround the need for proper nodejs typings and externs
+// eslint-disable-next-line no-eval
+const anyDeepEqual = eval('require("assert").strict.deepEqual') as any
+function deepEqual<T> (actual: T, expected: T, message?: string): void {
+  anyDeepEqual(actual, expected, message)
+}
+
+// Quoted properties aren't allowed in these lint settings.
+const FLAG_X = 'x'
+
+function runTests () {
+  deepEqual(parser.parse([]).argv, { _: [] }, 'empty argv')
+  deepEqual(
+    parser.parse([`--${FLAG_X}=42`]).argv,
+    { _: [], [FLAG_X]: 42 },
+    'guessed numeric value')
+  deepEqual(
+    parser.parse([`--${FLAG_X}=str`]).argv,
+    { _: [], [FLAG_X]: 'str' },
+    'guessed string value')
+  deepEqual(
+    parser.parse([`--no-${FLAG_X}`]).argv,
+    { _: [], [FLAG_X]: false },
+    'guessed boolean negation')
+
+  // Default values for types:
+  deepEqual(
+    parser.parse([`--${FLAG_X}`]).argv,
+    { _: [], [FLAG_X]: true },
+    'guessed boolean default true')
+
+  console.log('ok')
+}
+runTests()

test/tscc/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "optimized-test",
+  "version": "0.0.0",
+  "dependencies": {
+    "@tscc/tscc": "^0.6.4",
+    "@types/node": "^10.0.3"
+  }
+}

test/tscc/tscc.spec.json

@@ -0,0 +1,5 @@
+{
+  "modules": {
+    "out": "optimized.ts"
+  }
+}

test/tscc/tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "es2017",
+    "moduleResolution": "node"
+  },  
+  "include": [
+    "./*.ts",
+    "./lib/**/*.ts"
+  ]
+}