Run tests automatically on push

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: ⚙️ CI
+on:
+  push:
+    # branches: [ master ]
+    paths-ignore:
+      - "README.md"
+      - "LICENSE"
+      - "**/*.png"
+      - "**/*.svg"
+
+  pull_request:
+    # branches: [ master ]
+    paths-ignore:
+      - "README.md"
+      - "LICENSE"
+      - "**/*.png"
+      - "**/*.svg"
+
+jobs:
+  ci-unit-tests:
+    name: "⚙️ CI: Unit tests"
+    uses: ./.github/workflows/unit_tests.yml
+    with:
+      repo-ref: ${{ github.ref }}
+

.github/workflows/unit_tests.yml

@@ -0,0 +1,111 @@
+name: 🔎 Unit tests
+on:
+  workflow_call:
+    inputs:
+      godot-version:
+        description: Godot Engine version to use for testing.
+        type: string
+        default: 4.2.1-stable
+      repo-ref:
+        description: A commit, branch or tag to use for testing.
+        type: string
+        required: true
+
+  workflow_dispatch:
+    inputs:
+      godot-version:
+        description: Godot Engine version to use for testing.
+        type: string
+        default: 4.2.1-stable
+      repo-ref:
+        description: A commit, branch or tag to use for testing.
+        type: string
+        required: true
+
+jobs:
+  unit-tests-linux:
+    name: 🔎 Unit tests - Linux
+    runs-on: "ubuntu-latest"
+
+    env:
+      DONWLOAD_URL: https://github.com/godotengine/godot/releases/download/${{inputs.godot-version}}/Godot_v${{inputs.godot-version}}_linux.x86_64.zip
+      BIN: Godot_v${{inputs.godot-version}}_linux.x86_64
+
+    steps:
+      - name: Download Godot
+        shell: bash
+        run: |
+          echo "Godot version: ${{ github.event.inputs.godot-version }}"
+          mkdir -p bin
+          cd bin
+          wget "${DONWLOAD_URL}" -O godot.zip
+          unzip godot.zip
+          chmod u+x ${BIN}
+          rm godot.zip
+          ls -l
+
+      - name: Verify Godot binary
+        shell: bash
+        run: |
+          ls -l ./bin/
+          ./bin/${BIN} --version
+
+      - name: Clone repository
+        uses: actions/checkout@v4
+        with:
+          path: repo
+          ref: ${{ inputs.repo-ref }}
+
+      - name: Run tests
+        shell: bash
+        run: |
+          : # Run an editor process in background, because we need its LSP server
+          ./bin/${BIN} --headless --path ./repo/ --editor &
+          sleep 5
+          ./bin/${BIN} --headless --path ./repo/ --script addons/gut/gut_cmdln.gd -gdir=res://test/ -gexit
+
+  unit-tests-windows:
+    name: 🔎 Unit tests - Windows
+    runs-on: "ubuntu-latest"
+
+    env:
+      DONWLOAD_URL: https://github.com/godotengine/godot/releases/download/${{inputs.godot-version}}/Godot_v${{inputs.godot-version}}_win64.exe.zip
+      BIN: Godot_v${{inputs.godot-version}}_win64.exe
+
+    steps:
+      - name: Download Godot
+        shell: bash
+        run: |
+          echo "Godot version: ${{ github.event.inputs.godot-version }}"
+          mkdir -p bin
+          cd bin
+          wget "${DONWLOAD_URL}" -O godot.zip
+          unzip godot.zip
+          chmod u+x ${BIN}
+          rm godot.zip
+          ls -l
+
+      - name: Install wine
+        shell: bash
+        run: |
+          apt-get install wine-stable
+
+      - name: Verify Godot binary
+        shell: bash
+        run: |
+          ls -l ./bin/
+          ./bin/${BIN} --version
+
+      - name: Clone repository
+        uses: actions/checkout@v4
+        with:
+          path: repo
+          ref: ${{ inputs.repo-ref }}
+
+      - name: Run tests
+        shell: bash
+        run: |
+          : # Run an editor process in background, because we need its LSP server
+          wine ./bin/${BIN} --headless --path ./repo/ --editor &
+          sleep 5
+          wine ./bin/${BIN} --headless --path ./repo/ --script addons/gut/gut_cmdln.gd -gdir=res://test/ -gexit