From 83e37d900e1efec785ba60d4b5e77f581861eeb3 Mon Sep 17 00:00:00 2001
From: Felix Angelov <felix@shorebird.dev>
Date: Mon, 13 Nov 2023 14:56:57 -0600
Subject: [PATCH] ci: add android patch e2e test (#1471)

---
 .github/workflows/patch_e2e.yaml | 75 ++++++++++++++++++++++++++++++++
 scripts/patch_e2e.sh             | 74 +++++++++++++++++++++++++++++++
 2 files changed, 149 insertions(+)
 create mode 100644 .github/workflows/patch_e2e.yaml
 create mode 100755 scripts/patch_e2e.sh

diff --git a/.github/workflows/patch_e2e.yaml b/.github/workflows/patch_e2e.yaml
new file mode 100644
index 00000000..ba3f1db6
--- /dev/null
+++ b/.github/workflows/patch_e2e.yaml
@@ -0,0 +1,75 @@
+name: Patch E2E Tests
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+on:
+  workflow_dispatch:
+  schedule:
+    # At the end of every day
+    - cron: "0 0 * * *"
+
+jobs:
+  android:
+    runs-on: macos-latest
+
+    env:
+      SHOREBIRD_TOKEN: ${{ secrets.SHOREBIRD_TOKEN }}
+      SHOREBIRD_HOSTED_URL: https://api-dev.shorebird.dev
+
+    steps:
+      - name: 📚 Git Checkout
+        uses: actions/checkout@v3
+
+      - name: 🖥️ Add Shorebird to PATH
+        shell: bash
+        run: echo "${GITHUB_WORKSPACE}/bin/" >> $GITHUB_PATH
+
+      - name: 🐦 Verify Shorebird Installation
+        run: |
+          if [[ $(shorebird --version) =~ "Engine • revision" ]]; then          
+            echo '✅ Shorebird CLI is installed!'
+          else
+            echo '❌ Shorebird CLI is not installed.'
+          exit 1
+          fi
+        shell: bash
+
+      - name: ☕ Set up Java
+        uses: actions/setup-java@v3
+        with:
+          distribution: "temurin"
+          java-version: "17"
+
+      - name: 🎯 Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+          flutter-version: 3.13.9
+          cache: true
+
+      - name: 🤖 AVD Cache
+        uses: actions/cache@v3
+        id: avd-cache
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-29
+
+      - name: 🤖 Cache AVD Snapshot
+        if: steps.avd-cache.outputs.cache-hit != 'true'
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 29
+          force-avd-creation: false
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
+          disable-animations: false
+          script: echo "Generated AVD Snapshot"
+
+      - name: 🧪 Patch E2E Tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 29
+          script: ./scripts/patch_e2e.sh
diff --git a/scripts/patch_e2e.sh b/scripts/patch_e2e.sh
new file mode 100755
index 00000000..339c65db
--- /dev/null
+++ b/scripts/patch_e2e.sh
@@ -0,0 +1,74 @@
+#!/bin/bash -ex
+
+# This script tests the patching functionality of Shorebird.
+# It creates a new empty, flutter project, initializes Shorebird,
+# creates a new release, patches the release, and then ensures
+# that the patch was applied correctly.
+#
+# Pre-requisites:
+# - Flutter must be installed.
+# - Android SDK must be installed.
+# - ADB must be installed and be part of PATH.
+# - Android emulator must be running.
+# - Shorebird must be installed.
+#
+# Usage: ./patch_e2e.sh
+
+TEMP_DIR=$(mktemp -d)
+cd $TEMP_DIR
+
+# Create a new empty flutter project
+flutter create e2e_test --empty --platforms android
+cd e2e_test
+
+# Replace the contents of "lib/main.dart" with a single print statement.
+echo "void main() { print('hello world'); }" >lib/main.dart
+
+# Initialize Shorebird
+shorebird init --force -v
+
+# Point to the development environment
+echo "base_url: https://api-dev.shorebird.dev" >> shorebird.yaml
+
+# Extract the app_id from the "shorebird.yaml"
+APP_ID=$(cat shorebird.yaml | grep 'app_id:' | awk '{print $2}')
+
+# Create a new release on Android
+shorebird release android --force -v
+
+# Run the app on Android and ensure that the print statement is printed.
+while IFS= read -r line; do
+    if [[ "$line" == *"I flutter : hello world"* ]]; then
+        adb kill-server
+        echo "✅ 'hello world' was printed"
+        break
+    fi
+done < <(shorebird preview --release-version 0.1.0+1 --app-id $APP_ID --platform android)
+
+# Replace lib/main.dart "hello world" to "hello shorebird"
+sed -i '' 's/hello world/hello shorebird/g' lib/main.dart
+
+# Create a patch
+shorebird patch android --force -v
+
+# Run the app on Android and ensure that the original print statement is printed.
+while IFS= read -r line; do
+    if [[ "$line" == *"I flutter : hello world"* ]]; then
+        sleep 5 # Wait for the patch to be installed.
+        adb kill-server
+        echo "✅ 'hello world' was printed"
+        break
+    fi
+done < <(shorebird preview --release-version 0.1.0+1 --app-id $APP_ID --platform android)
+
+# Re-run the app on Android and ensure that the new print statement is printed.
+while IFS= read -r line; do
+    if [[ "$line" == *"I flutter : hello shorebird"* ]]; then
+        adb kill-server
+        echo "✅ 'hello shorebird' was printed"
+        break
+    fi
+done < <(shorebird preview --release-version 0.1.0+1 --app-id $APP_ID --platform android)
+
+echo "✅ All tests passed!"
+exit 0