Add running tests on unity2019 branch

.github/workflows/test-unity2019.yml

@@ -0,0 +1,85 @@
+# Copyright (c) 2021-2023 Koji Hasegawa.
+# This software is released under the MIT License.
+
+name: Test running on unity2019 branch
+
+on:
+  push:
+    branches:
+      - unity2019
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      checks: write
+    strategy:
+      fail-fast: false
+      matrix:
+        unityVersion: # Available versions see: https://game.ci/docs/docker/versions
+          - 2019.4.40f1
+          - 2020.3.48f1
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: false
+          lfs: false
+
+      - uses: actions/cache@v3
+        with:
+          path: Library
+          key: Library-${{ matrix.unityVersion }}
+          restore-keys: |
+            Library-
+
+      - name: Set coverage assembly filters
+        run: |
+          assemblies=$(find ./Packages -name "*.asmdef" | sed -e s/.*\\//\+/ | sed -e s/\\.asmdef// | sed -e s/^.*\\.Tests//)
+          assemblies+=("+LocalPackageSample*")
+          # shellcheck disable=SC2001,SC2048,SC2086
+          echo "assembly_filters=+<assets>,$(echo ${assemblies[*]} | sed -e s/\ /,/g),-*.Tests" >> "$GITHUB_ENV"
+
+      - name: Set license secret key
+        run: echo "secret_key=UNITY_LICENSE_$(echo ${{ matrix.unityVersion }} | cut -c 1-4)" >> "$GITHUB_ENV"
+
+      - name: Run tests
+        uses: game-ci/unity-test-runner@v3
+        with:
+          githubToken: ${{ secrets.GITHUB_TOKEN }}
+          unityVersion: ${{ matrix.unityVersion }}  # Default is `auto`
+          checkName: test result (${{ matrix.unityVersion }})
+          customParameters: -testCategory "!IgnoreCI;!Integration"
+          coverageOptions: generateAdditionalMetrics;generateTestReferences;generateHtmlReport;generateAdditionalReports;dontClear;assemblyFilters:${{ env.assembly_filters }}
+          # see: https://docs.unity3d.com/Packages/[email protected]/manual/CoverageBatchmode.html
+        env:
+          UNITY_LICENSE: ${{ secrets[env.secret_key] }}
+        id: test
+
+      - name: Upload test results
+        uses: actions/upload-artifact@v3
+        with:
+          name: TestResults-Unity${{ matrix.unityVersion }}
+          path: |
+            ${{ steps.test.outputs.artifactsPath }}
+            ${{ steps.test.outputs.coveragePath }}
+        if: always()
+
+  notify:
+    needs: test
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+    if: always()
+
+    steps:
+      - uses: Gamesight/[email protected]
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL }}