Fix camerapreview tests

cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraPreviewTest.java

@@ -149,8 +149,12 @@ public abstract class CameraPreviewTest extends BaseTest {
 
     private float getViewAspectRatioWithScale() {
         Size size = preview.getOutputSurfaceSize();
-        int newWidth = (int) (((float) size.getWidth()) * preview.getView().getScaleX());
+        int newWidth = (int) (((float) size.getWidth()) * getCropScaleX());
-        int newHeight = (int) (((float) size.getHeight()) * preview.getView().getScaleY());
+        int newHeight = (int) (((float) size.getHeight()) * getCropScaleY());
         return AspectRatio.of(newWidth, newHeight).toFloat();
     }
+
+    abstract protected float getCropScaleX();
+
+    abstract protected float getCropScaleY();
 }

cameraview/src/androidTest/java/com/otaliastudios/cameraview/GLCameraPreviewTest.java

@@ -16,4 +16,14 @@ public class GLCameraPreviewTest extends CameraPreviewTest {
     protected CameraPreview createPreview(Context context, ViewGroup parent, CameraPreview.SurfaceCallback callback) {
         return new GLCameraPreview(context, parent, callback);
     }
+
+    @Override
+    protected float getCropScaleY() {
+        return 1F / ((GLCameraPreview) preview).mScaleY;
+    }
+
+    @Override
+    protected float getCropScaleX() {
+        return 1F / ((GLCameraPreview) preview).mScaleX;
+    }
 }

cameraview/src/androidTest/java/com/otaliastudios/cameraview/SurfaceCameraPreviewTest.java

@@ -16,4 +16,14 @@ public class SurfaceCameraPreviewTest extends CameraPreviewTest {
     protected CameraPreview createPreview(Context context, ViewGroup parent, CameraPreview.SurfaceCallback callback) {
         return new SurfaceCameraPreview(context, parent, callback);
     }
+
+    @Override
+    protected float getCropScaleX() {
+        return 1F;
+    }
+
+    @Override
+    protected float getCropScaleY() {
+        return 1F;
+    }
 }

cameraview/src/androidTest/java/com/otaliastudios/cameraview/TextureCameraPreviewTest.java

@@ -40,4 +40,14 @@ public class TextureCameraPreviewTest extends CameraPreviewTest {
     private boolean isHardwareAccelerated() {
         return preview.getView().isHardwareAccelerated();
     }
+
+    @Override
+    protected float getCropScaleX() {
+        return preview.getView().getScaleX();
+    }
+
+    @Override
+    protected float getCropScaleY() {
+        return preview.getView().getScaleY();
+    }
 }

cameraview/src/main/java/com/otaliastudios/cameraview/MediaRecorderVideoRecorder.java

@@ -24,6 +24,9 @@ class MediaRecorderVideoRecorder extends VideoRecorder {
         mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
         mProfile = CamcorderProfile.get(cameraId, CamcorderProfile.QUALITY_HIGH);
         // TODO: should get a profile of a quality compatible with the chosen size.
+        // Might do this by inspecting mResult.getSize(). However, it is not super important.
+        // We are only bound to respect the video size passed by the VideoSizeSelector, and
+        // we are doing that below.
     }
 
     // Camera2 constructor here...

cameraview/src/main/views/com/otaliastudios/cameraview/GLCameraPreview.java

@@ -192,8 +192,8 @@ class GLCameraPreview extends CameraPreview<GLSurfaceView, SurfaceTexture> imple
         return true;
     }
 
-    private float mScaleX = 1F;
+    /* for tests */ float mScaleX = 1F;
-    private float mScaleY = 1F;
+    /* for tests */ float mScaleY = 1F;
 
     /**
      * To crop in GL, we could actually use view.setScaleX and setScaleY, but only from Android N onward.