Add CI workflow for DL3 instrumentation tests

Co-authored-by: kirklandsign <107070759+kirklandsign@users.noreply.github.com>

Author: Copilot

.github/workflows/android-emulator.yml

@@ -0,0 +1,89 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+name: DL3 Android Emulator
+
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - 'dl3/android/**'
+      - '.github/workflows/android-emulator.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  instrumentation-test:
+    runs-on: 8-core-ubuntu
+    env:
+      API_LEVEL: 34
+      ARCH: x86_64
+
+    name: Instrumentation Test DL3
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Enable KVM group perms
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: AVD cache
+        uses: actions/cache@v4
+        id: avd-cache
+        with:
+          path: |
+            ~/.android/avd/*
+            ~/.android/adb*
+          key: avd-${{ env.API_LEVEL }}-${{ env.ARCH }}-ram8G-disk8G-dl3-v1
+
+      - name: Create AVD and generate snapshot for caching
+        if: steps.avd-cache.outputs.cache-hit != 'true'
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: ${{ env.API_LEVEL }}
+          arch: ${{ env.ARCH }}
+          ram-size: 8192M
+          disk-size: 8192M
+          force-avd-creation: true
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none -no-snapshot-save -memory 8192
+          disable-animations: false
+          working-directory: dl3/android/DeepLabV3Demo
+          script: echo "Generated AVD snapshot for caching."
+
+      - name: Run instrumentation tests
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: ${{ env.API_LEVEL }}
+          arch: ${{ env.ARCH }}
+          ram-size: 8192M
+          disk-size: 8192M
+          force-avd-creation: true
+          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none -no-snapshot-save -memory 8192
+          disable-animations: true
+          working-directory: dl3/android/DeepLabV3Demo
+          script: bash ./scripts/run-ci-tests.sh
+
+      - name: Upload logcat
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: logcat-dl3
+          path: /tmp/logcat-dl3.txt
+          retention-days: 7

dl3/android/DeepLabV3Demo/app/src/androidTest/java/org/pytorch/executorchexamples/dl3/UIWorkflowTest.java

@@ -32,7 +32,7 @@
  * UI workflow test that simulates the image segmentation workflow.
  *
  * Prerequisites:
- * - Push a .pte model file to app's private storage or ensure model can be downloaded
+ * - Model will be downloaded automatically by the app during the test
  *
  * This test validates:
  * - Model download/loading workflow
@@ -41,9 +41,9 @@
  * - Reset image button functionality
  * - Inference time display after segmentation
  *
- * Note: This test assumes the model is already present or can be downloaded automatically.
- * For CI/CD, you may need to push the model file before running tests:
- * adb push dl3_xnnpack_fp32.pte /data/local/tmp/
+ * Note: The test downloads the model from the same URL as MainActivity uses,
+ * storing it in the app's private storage (package storage), not /data/local/tmp.
+ * This ensures the test mimics the actual user workflow.
  */
 @RunWith(AndroidJUnit4.class)
 @LargeTest

dl3/android/DeepLabV3Demo/scripts/run-ci-tests.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+# CI test script for running DL3 instrumentation tests
+# The model will be downloaded automatically by the app during the test
+
+set -ex
+
+echo "=== Test Configuration ==="
+echo "DL3 Demo - Model will be downloaded by the app"
+
+echo "=== Emulator Memory Info ==="
+adb shell cat /proc/meminfo | head -5
+
+echo "=== Emulator Disk Space ==="
+adb shell df -h /data
+
+# Start logcat capture
+adb logcat -c
+adb logcat > /tmp/logcat-dl3.txt &
+LOGCAT_PID=$!
+
+echo "=== Starting Gradle ==="
+./gradlew connectedCheck
+TEST_EXIT_CODE=$?
+
+# Stop logcat
+if [ -n "$LOGCAT_PID" ]; then
+  kill $LOGCAT_PID 2>/dev/null || true
+fi
+
+echo "=== Test completion status ==="
+if [ $TEST_EXIT_CODE -eq 0 ]; then
+  echo "✅ Tests passed successfully"
+else
+  echo "❌ Tests failed with exit code $TEST_EXIT_CODE"
+fi
+
+echo "=== Checking for test results in logcat ==="
+grep "UIWorkflowTest" /tmp/logcat-dl3.txt || echo "No UIWorkflowTest logs found"
+
+exit $TEST_EXIT_CODE