feat(tests): add unit and integration tests for MageForge extension

.github/workflows/_integration-tests.yml

@@ -0,0 +1,41 @@
+name: Integration Tests
+
+on:
+    workflow_call:
+        inputs:
+            os:
+                required: true
+                type: string
+
+permissions:
+    contents: read
+
+jobs:
+    integration-tests:
+        name: Integration Tests (${{ inputs.os }})
+        runs-on: ${{ inputs.os }}
+        steps:
+            - uses: actions/checkout@v7
+
+            - name: Setup Node.js
+              uses: actions/setup-node@v7
+              with:
+                  node-version-file: .nvmrc
+                  cache: npm
+
+            - name: Install dependencies
+              run: npm ci
+
+            - name: Compile tests
+              run: npm run compile-tests
+
+            # VS Code integration tests need a display server on Linux
+            - name: Run extension tests (Linux)
+              if: inputs.os == 'ubuntu-latest'
+              uses: coactions/setup-xvfb@v1
+              with:
+                  run: npm test
+
+            - name: Run extension tests (Windows/macOS)
+              if: inputs.os != 'ubuntu-latest'
+              run: npm test

.github/workflows/ci.yml

@@ -45,14 +45,10 @@ jobs:
             - name: Package (production build)
               run: npm run package
 
-    test:
-        name: Test (${{ matrix.os }})
+    unit-tests:
+        name: Unit Tests & Coverage
+        runs-on: ubuntu-latest
         needs: build
-        strategy:
-            fail-fast: false
-            matrix:
-                os: [ubuntu-latest, windows-latest, macos-latest]
-        runs-on: ${{ matrix.os }}
         steps:
             - uses: actions/checkout@v7
 
@@ -65,16 +61,12 @@ jobs:
             - name: Install dependencies
               run: npm ci
 
-            - name: Compile tests
-              run: npm run compile-tests
+            - name: Run unit tests with coverage
+              run: npm run test:unit:coverage
 
-            # VS Code integration tests need a display server on Linux
-            - name: Run extension tests (Linux)
-              if: runner.os == 'Linux'
-              uses: coactions/setup-xvfb@v1
+            - name: Upload coverage to Codecov
+              uses: codecov/codecov-action@v5
+              if: github.repository == 'OpenForgeProject/mageforge-vscode'
               with:
-                  run: npm test
-
-            - name: Run extension tests (Windows/macOS)
-              if: runner.os != 'Linux'
-              run: npm test
+                  files: ./coverage/lcov.info
+                  fail_ci_if_error: false

.github/workflows/test-integration-macos.yml

@@ -0,0 +1,20 @@
+name: Integration Tests (macOS)
+
+on:
+    push:
+        branches: [main]
+    pull_request:
+        branches: [main]
+
+permissions:
+    contents: read
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.ref }}
+    cancel-in-progress: true
+
+jobs:
+    integration-tests:
+        uses: ./.github/workflows/_integration-tests.yml
+        with:
+            os: macos-latest

.github/workflows/test-integration-ubuntu.yml

@@ -0,0 +1,20 @@
+name: Integration Tests (Ubuntu)
+
+on:
+    push:
+        branches: [main]
+    pull_request:
+        branches: [main]
+
+permissions:
+    contents: read
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.ref }}
+    cancel-in-progress: true
+
+jobs:
+    integration-tests:
+        uses: ./.github/workflows/_integration-tests.yml
+        with:
+            os: ubuntu-latest

.github/workflows/test-integration-windows.yml

@@ -0,0 +1,20 @@
+name: Integration Tests (Windows)
+
+on:
+    push:
+        branches: [main]
+    pull_request:
+        branches: [main]
+
+permissions:
+    contents: read
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.ref }}
+    cancel-in-progress: true
+
+jobs:
+    integration-tests:
+        uses: ./.github/workflows/_integration-tests.yml
+        with:
+            os: windows-latest

.gitignore

@@ -7,5 +7,8 @@ out/
 # VS Code test binaries & cache
 .vscode-test/
 
+# Test coverage
+coverage/
+
 # Local tooling
 .DS_Store

.vscode-test.mjs

@@ -1,6 +1,14 @@
 import { defineConfig } from '@vscode/test-cli';
+import * as fs from 'node:fs';
+import * as os from 'node:os';
+import * as path from 'node:path';
+
+const workspaceDir = fs.mkdtempSync(path.join(os.tmpdir(), 'mageforge-vscode-test-'));
+fs.mkdirSync(path.join(workspaceDir, 'app', 'etc'), { recursive: true });
+fs.writeFileSync(path.join(workspaceDir, 'app', 'etc', 'env.php'), '<?php return [];');
 
 export default defineConfig({
-    files: 'out/**/*.test.js',
+    files: 'out/test/extension.test.js',
     version: '1.131.0',
+    workspaceFolder: workspaceDir,
 });

README.md

@@ -3,9 +3,13 @@
 ![MageForge Hero](./.github/assets/MageForge-Header.png)
 
 ![CI](https://github.com/OpenForgeProject/mageforge-vscode/actions/workflows/ci.yml/badge.svg)
+![Integration Tests (Ubuntu)](https://github.com/OpenForgeProject/mageforge-vscode/actions/workflows/test-integration-ubuntu.yml/badge.svg)
+![Integration Tests (Windows)](https://github.com/OpenForgeProject/mageforge-vscode/actions/workflows/test-integration-windows.yml/badge.svg)
+![Integration Tests (macOS)](https://github.com/OpenForgeProject/mageforge-vscode/actions/workflows/test-integration-macos.yml/badge.svg)
 ![Release Please](https://github.com/OpenForgeProject/mageforge-vscode/actions/workflows/release-please.yml/badge.svg)
 [![Version](https://img.shields.io/visual-studio-marketplace/v/OpenForgeProject.mageforge)](https://marketplace.visualstudio.com/items?itemName=OpenForgeProject.mageforge)
 [![License](https://img.shields.io/github/license/OpenForgeProject/mageforge-vscode)](./LICENSE)
+[![Coverage](https://codecov.io/gh/OpenForgeProject/mageforge-vscode/branch/main/graph/badge.svg)](https://codecov.io/gh/OpenForgeProject/mageforge-vscode)
 
 The official VS Code integration for [MageForge](https://github.com/OpenForgeProject/mageforge).