build: run tests using actual build (#23)

* build: run tests using actual build

* build: build script that includes hashbang prepending

* ci: missing /bin/zsh

.github/workflows/nodejs.yml

@@ -44,11 +44,13 @@ jobs:
         key: ${{ runner.os }}-build-${{env.cache-name}}-${{ hashFiles('**/yarn.lock') }}-node-${{ matrix.node-version }}
     - if: ${{ steps.cache-npm.outputs.cache-hit != 'true' }}
       run: corepack enable && yarn
+
   integration:
     runs-on: ubuntu-latest
     needs: dependencies
     name: Integration tests
-    
+    env:
+      SHELL: /usr/bin/bash
     strategy:
       matrix:
         node-version: [16, 18]
@@ -95,6 +97,8 @@ jobs:
       matrix:
         node-version: [16, 18]
 
+    env:
+      SHELL: /usr/bin/bash
     steps:
     - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
@@ -115,6 +119,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     needs: dependencies
+    env:
+      SHELL: /usr/bin/bash
     strategy:
       matrix:
         node-version: [16, 18]

package.json

@@ -16,9 +16,10 @@
     "prebuild": "rm -rf dist",
     "lint": "rome format src tests && rome check src tests",
     "lint:fix": "rome format src tests --write && rome check src tests --apply",
-    "test": "ts-node ./src/cli.ts ./tests",
+    "test": "$SHELL ./script/test-suite",
-    "test:integration": "/usr/bin/bash ./script/integration-tests",
+    "test:integration": "$SHELL ./script/integration-tests",
-    "build": "tsc --project ."
+    "build:ts": "tsc --project .",
+    "build": "$SHELL ./script/build"
   },
   "devDependencies": {
     "@types/node": "^18.15.10",

script/build

@@ -0,0 +1,18 @@
+#!/usr/bin/bash
+
+yarn build:ts
+
+# Certain files need hashbangs as they are executables.
+
+NODE_HASHBANG="#!/usr/bin/env node"
+
+addHashbang() {
+    echo $1
+    echo $NODE_HASHBANG > $1_prefixed
+    cat $1 >> $1_prefixed
+    mv $1_prefixed $1
+}
+
+addHashbang dist/cli.js
+addHashbang dist/collector.js
+addHashbang dist/worker.js

script/test-suite

@@ -0,0 +1,23 @@
+#!/usr/bin/bash
+
+#
+# Tests are executed using a built version of the runner.
+#
+# This will first build the package, install it in a temporary
+# environment and run the test suite with it.
+#
+
+yarn pack --out integration-build.tgz
+
+mkdir .tests
+
+echo "{}" > .tests/package.json
+touch .tests/yarn.lock
+
+(
+    cd .tests
+    yarn add ../integration-build.tgz ts-node
+    yarn womm ../tests --ts --workers=2
+)
+
+rm -rf .tests

src/cli.ts

@@ -1,5 +1,3 @@
-#!/usr/bin/env node
-
 import helpText from './help'
 import parseArgs from './argumentParser'
 import { getContext, redText, assertTsNodeInstall } from './utils'

src/collector.ts

@@ -1,5 +1,3 @@
-#!/usr/bin/env ts-node
-
 import { type Context } from './types'
 import { getContext, spawnProcess } from './utils'
 

src/worker.ts

@@ -1,5 +1,3 @@
-#!/usr/bin/env ts-node
-
 import path from 'path'
 
 import { getContext, spawnProcess } from './utils'

tests/expect.test.ts

@@ -1,5 +1,5 @@
 import assert from 'assert'
-import { describe, test, expect } from '../src'
+import { describe, test, expect } from 'works-on-my-machine'
 
 describe('Equality', () => {
 	test.each([1, 'expectations', true])('Equality (value=%s)', (value: unknown) => {

tests/it.test.ts

@@ -1,6 +1,6 @@
 import assert from 'assert'
 
-import { it, test, expect, describe } from '../src'
+import { it, test, expect, describe } from 'works-on-my-machine'
 
 describe.each([it, test])('Runs tests', (fn: unknown) => {
 	const testFn = fn as typeof test