improve tests

packages/camera/camera_android/android/src/main/java/io/flutter/plugins/camera/features/exposurepoint/ExposurePointFeature.java

@@ -10,6 +10,7 @@
 import android.util.Size;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 import io.flutter.embedding.engine.systemchannels.PlatformChannel;
 import io.flutter.plugins.camera.CameraProperties;
 import io.flutter.plugins.camera.CameraRegionUtils;
@@ -25,7 +26,7 @@ public class ExposurePointFeature extends CameraFeature<Point> {
   private MeteringRectangle exposureRectangle;
   @NonNull private final SensorOrientationFeature sensorOrientationFeature;
   private boolean defaultRegionsHasBeenSet = false;
-  @Nullable private MeteringRectangle[] defaultRegions;
+  @VisibleForTesting @Nullable public MeteringRectangle[] defaultRegions;
 
   /**
    * Creates a new instance of the {@link ExposurePointFeature}.

packages/camera/camera_android/android/src/test/java/io/flutter/plugins/camera/features/exposurepoint/ExposurePointFeatureTest.java

@@ -6,7 +6,6 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
@@ -28,7 +27,6 @@
 import io.flutter.plugins.camera.features.sensororientation.SensorOrientationFeature;
 import org.junit.Before;
 import org.junit.Test;
-import org.mockito.ArgumentCaptor;
 import org.mockito.MockedStatic;
 import org.mockito.Mockito;
 
@@ -310,7 +308,8 @@ public void updateBuilder_shouldSetDefaultMeteringRectangleWhenNoValidCoordsAreS
     exposurePointFeature.updateBuilder(mockCaptureRequestBuilder);
     exposurePointFeature.setValue(new Point(null, 0d));
     exposurePointFeature.updateBuilder(mockCaptureRequestBuilder);
-    verify(mockCaptureRequestBuilder, times(3)).set(any(), any());
+
+    verify(mockCaptureRequestBuilder, times(3)).set(any(), eq(exposurePointFeature.defaultRegions));
   }
 
   @Test
@@ -327,11 +326,6 @@ public void updateBuilder_shouldSetNonNullMeteringRectangleWhenNullValueIsSuppli
 
     exposurePointFeature.updateBuilder(mockCaptureRequestBuilder);
 
-    ArgumentCaptor<MeteringRectangle[]> meteringRectangleCaptor =
-        ArgumentCaptor.forClass(MeteringRectangle[].class);
-
-    verify(mockCaptureRequestBuilder, times(1))
-        .set(eq(CaptureRequest.CONTROL_AE_REGIONS), meteringRectangleCaptor.capture());
-
+    verify(mockCaptureRequestBuilder, times(1)).set(any(), eq(exposurePointFeature.defaultRegions));
   }
 }