Bump versions and fix test

Author: camsim99

packages/camera/camera_android_camerax/android/build.gradle

@@ -55,7 +55,7 @@ dependencies {
     implementation "androidx.camera:camera-core:${camerax_version}"
     implementation "androidx.camera:camera-camera2:${camerax_version}"
     implementation "androidx.camera:camera-lifecycle:${camerax_version}"
-    implementation 'com.google.guava:guava:28.1-android'
+    implementation 'com.google.guava:guava:31.1-android'
     testImplementation 'junit:junit:4.13.2'
     testImplementation 'org.mockito:mockito-inline:4.7.0'
     testImplementation 'androidx.test:core:1.4.0'

packages/camera/camera_android_camerax/android/src/test/java/io/flutter/plugins/camerax/ProcessCameraProviderTest.java

@@ -16,7 +16,8 @@
 import androidx.camera.core.CameraInfo;
 import androidx.camera.lifecycle.ProcessCameraProvider;
 import androidx.test.core.app.ApplicationProvider;
-import com.google.common.util.concurrent.SettableFuture;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
 import io.flutter.plugin.common.BinaryMessenger;
 import java.util.Arrays;
 import java.util.Objects;
@@ -25,6 +26,7 @@
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.MockedStatic;
 import org.mockito.Mockito;
@@ -58,8 +60,8 @@ public void tearDown() {
   public void getInstanceTest() {
     final ProcessCameraProviderHostApiImpl processCameraProviderHostApi =
         new ProcessCameraProviderHostApiImpl(mockBinaryMessenger, testInstanceManager, context);
-    SettableFuture processCameraProviderFuture = SettableFuture.create();
-    processCameraProviderFuture.set(processCameraProvider);
+    final ListenableFuture<ProcessCameraProvider> processCameraProviderFuture =
+        spy(Futures.immediateFuture(processCameraProvider));
     final GeneratedCameraXLibrary.Result<Long> mockResult =
         mock(GeneratedCameraXLibrary.Result.class);
 
@@ -69,9 +71,15 @@ public void getInstanceTest() {
         Mockito.mockStatic(ProcessCameraProvider.class)) {
       mockedProcessCameraProvider
           .when(() -> ProcessCameraProvider.getInstance(context))
-          .thenAnswer((Answer<SettableFuture>) invocation -> processCameraProviderFuture);
+          .thenAnswer(
+              (Answer<ListenableFuture<ProcessCameraProvider>>)
+                  invocation -> processCameraProviderFuture);
+
+      final ArgumentCaptor<Runnable> runnableCaptor = ArgumentCaptor.forClass(Runnable.class);
 
       processCameraProviderHostApi.getInstance(mockResult);
+      verify(processCameraProviderFuture).addListener(runnableCaptor.capture(), any());
+      runnableCaptor.getValue().run();
       verify(mockResult).success(0L);
     }
   }