[#394] Add robo test configuration

.github/workflows/pull-request.yml

@@ -297,4 +297,4 @@ jobs:
           ORG_GRADLE_PROJECT_ZCASH_FIREBASE_TEST_LAB_API_KEY_PATH: ${{ steps.auth_test_lab.outputs.credentials_file_path }}
         run: |
           unzip ${BINARIES_ZIP_PATH}
-          ./gradlew :app:runFlankSanityConfig
+          ./gradlew :demo-app:runFlankSanityConfig

demo-app/build.gradle.kts

@@ -4,6 +4,7 @@ plugins {
     id("org.jetbrains.kotlin.android")
     id("kotlin-parcelize")
     id("androidx.navigation.safeargs")
+    id("com.osacky.fladle")
 }
 
 android {
@@ -74,3 +75,48 @@ dependencies {
 
     implementation(libs.bundles.grpc)
 }
+
+// Firebase Test Lab has min and max values that might differ from our project's
+// These are determined by `gcloud firebase test android models list`
+@Suppress("MagicNumber", "PropertyName", "VariableNaming")
+val FIREBASE_TEST_LAB_MIN_API = 23
+
+@Suppress("MagicNumber", "PropertyName", "VariableNaming")
+val FIREBASE_TEST_LAB_MAX_API = 30
+
+val firebaseTestLabKeyPath = project.properties["ZCASH_FIREBASE_TEST_LAB_API_KEY_PATH"].toString()
+if (firebaseTestLabKeyPath.isNotBlank()) {
+    val minSdkVersion = run {
+        val buildMinSdk =
+            project.properties["ANDROID_MIN_SDK_VERSION"].toString().toInt()
+        buildMinSdk.coerceAtLeast(FIREBASE_TEST_LAB_MIN_API).toString()
+    }
+    val targetSdkVersion = run {
+        val buildTargetSdk =
+            project.properties["ANDROID_TARGET_SDK_VERSION"].toString().toInt()
+        buildTargetSdk.coerceAtMost(FIREBASE_TEST_LAB_MAX_API).toString()
+    }
+
+    fladle {
+        serviceAccountCredentials.set(File(firebaseTestLabKeyPath))
+
+        configs {
+            create("sanityConfig") {
+                clearPropertiesForSanityRobo()
+
+                debugApk.set(
+                    project.provider {
+                        "${buildDir}/outputs/apk/zcashmainnet/release/demo-app-zcashmainnet-release.apk"
+                    }
+                )
+
+                testTimeout.set("5m")
+
+                devices.addAll(
+                    mapOf("model" to "NexusLowRes", "version" to minSdkVersion),
+                    mapOf("model" to "NexusLowRes", "version" to targetSdkVersion)
+                )
+            }
+        }
+    }
+}