test: move integration tests to dart (#279)

* test: prepare dart-based integration test

* prepare server

* move integration tests to dart

* remove original integration-test app

* update CI

* update ci

* ci

* cache in ci

* update ci

* update cache key

* update ci

* update ci

* update expectations

* update matches

* update matchers for web

.github/workflows/dart_plugin.yml

@@ -37,7 +37,7 @@ jobs:
       - run: scripts/commit-formatted-code.sh $GITHUB_HEAD_REF
         if: env.GITHUB_HEAD_REF != null
 
-      - run: dart test
+      - run: dart test --exclude-tags integration
 
       - name: Build
         run: |
@@ -53,7 +53,7 @@ jobs:
         id: analysis
         with:
           githubToken: ${{ secrets.GITHUB_TOKEN }}
-      - name: "Check scores"
+      - name: 'Check scores'
         env:
           TOTAL: ${{ steps.analysis.outputs.total }}
           TOTAL_MAX: ${{ steps.analysis.outputs.total_max }}

.github/workflows/integration-test.yml

@@ -0,0 +1,53 @@
+name: integration-tests
+
+on:
+  push:
+    branches:
+      - main
+      - release/**
+  pull_request:
+
+jobs:
+  integration-test:
+    name: ${{ matrix.target }} @ ${{ matrix.host }}
+    runs-on: ${{ matrix.host }}-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - host: macos
+            target: macos
+          - host: macos
+            target: ios
+          - host: ubuntu
+            target: linux
+          - host: ubuntu
+            target: web
+          - host: ubuntu
+            target: android
+          - host: windows
+            target: windows
+    env:
+      TEST_PLATFORM: ${{ matrix.target }}
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: subosito/flutter-action@44ac965b96f18d999802d4b807e3256d5a3f9fa1 #2.16.0
+
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - run: sudo apt-get install ninja-build libgtk-3-dev
+        if: runner.os == 'Linux'
+
+      - run: (flutter --version)[0] | Out-File flutter.version
+        shell: pwsh
+
+      - uses: actions/cache@v4
+        with:
+          path: temp/testapp-${{ matrix.target }}
+          key: integration-test-${{ matrix.host }}-${{ matrix.target }}-${{ hashFiles('flutter.version') }}
+
+      - run: dart test --tags integration