[build] Build Android release when running render tests

circle.yml

@@ -660,7 +660,7 @@ jobs:
           name: Build RenderTestRunner APK
           command: |
             cd render-test/android
-            ./gradlew --parallel --max-workers=8 -Pmapbox.abis=arm64-v8a app:assembleDebug app:assembleDebugAndroidTest
+            ./gradlew --parallel --max-workers=8 -Pmapbox.abis=arm64-v8a app:assembleRelease app:assembleAndroidTest
       - login-google-cloud-platform
       - run:
           name: Run RenderTestRunner Instrumentation Test on Firebase
@@ -669,8 +669,8 @@ jobs:
             if [[ -n "${GCLOUD_SERVICE_ACCOUNT_JSON}" && -z "${SKIP_FIREBASE:-}" ]]; then
               gcloud firebase test android models list
               gcloud firebase test android run --type instrumentation \
-                --app render-test/android/app/build/outputs/apk/debug/app-debug.apk \
-                --test render-test/android/app/build/outputs/apk/androidTest/debug/app-debug-androidTest.apk \
+                --app render-test/android/app/build/outputs/apk/release/app-release.apk \
+                --test render-test/android/app/build/outputs/apk/androidTest/release/app-release-androidTest.apk \
                 --device-ids flame --os-version-ids 29 --locales en --orientations portrait --timeout 20m \
                 --directories-to-pull /sdcard --results-dir render-test-app-${CIRCLE_BUILD_NUM}
               testResult=$(gsutil ls gs://test-lab-186672a0qp5bq-ycr70axads3nc/render-test-app-${CIRCLE_BUILD_NUM}/**/*.html | tail -1)

render-test/android/app/build.gradle

@@ -9,13 +9,13 @@ android {
         targetSdkVersion 28
         def abi = 'all'
         if (project.hasProperty('mapbox.abis')) {
-            abi = project.getProperty("mapbox.abis")
+            abi = project.getProperty('mapbox.abis')
         }
         ndk {
             if (abi != 'all') {
                 abiFilters abi.split(' ')
             } else {
-                abiFilters "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
+                abiFilters 'armeabi-v7a', 'x86', 'arm64-v8a', 'x86_64'
             }
         }
         externalNativeBuild {
@@ -25,7 +25,11 @@ android {
                 targets 'mbgl-render-test-runner'
             }
         }
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        android {
+            testBuildType 'release'
+        }
+
+        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
     }
     externalNativeBuild {
         cmake {
@@ -33,6 +37,11 @@ android {
             path '../../../next/CMakeLists.txt'
         }
     }
+    buildTypes {
+        release {
+            signingConfig signingConfigs.debug
+        }
+    }
 }
 
 dependencies {