rough but works

shell/platform/android/build.gradle

@@ -8,7 +8,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:7.0.4"
+        classpath "com.android.tools.build:gradle:7.4.2"
     }
 }
 
@@ -20,17 +20,46 @@ repositories {
 apply plugin: "com.android.library"
 
 android {
-    compileSdk 34
+    compileSdkVersion 34
+
+    defaultConfig {
+        minSdkVersion 19
+    }
 
     sourceSets {
         main {
             manifest.srcFile 'AndroidManifest.xml'
             java.srcDirs './'
             java.include './io.flutter/**'
+            test {
+                java.srcDir './test'
+                java.include './test/io.flutter/**'
+            }
         }
     }
-}
 
-dependencies {
-    implementation fileTree(include: ["*.jar"], dir: "../../../../third_party/android_embedding_dependencies/lib/")
+    testOptions {
+        unitTests {
+            includeAndroidResources = true
+        }
+
+    }
+
+    dependencies {
+        implementation fileTree(include: ["*.jar"], dir: "../../../../third_party/android_embedding_dependencies/lib/")
+
+        // These dependencies should be kept in line with those in the ./test_runner/build.gradle
+        implementation "androidx.test:core:1.4.0"
+        implementation "com.google.android.play:core:1.8.0"
+        implementation "com.ibm.icu:icu4j:69.1"
+        implementation "org.robolectric:robolectric:4.11"
+        implementation "junit:junit:4.13.2"
+        implementation "androidx.test.ext:junit:1.1.4-alpha07"
+
+        def mockitoVersion = "4.7.0"
+        implementation "org.mockito:mockito-core:$mockitoVersion"
+        implementation "org.mockito:mockito-inline:$mockitoVersion"
+        implementation "org.mockito:mockito-android:$mockitoVersion"
+    }
 }
+