Added more recognize tests to iOS Gesture Recognizer Objective C tests

mediapipe/tasks/ios/test/vision/gesture_recognizer/MPPGestureRecognizerTests.m

@@ -284,4 +284,128 @@ static const float kLandmarksErrorTolerance = 0.03f;
                                                       thumbUpGestureRecognizerResult]];
 }
 
+- (void)testRecognizeWithEmptyResultsSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+
+  MPPGestureRecognizerResult *gestureRecognizerResult =
+      [self recognizeImageWithFileInfo:kNoHandsImage usingGestureRecognizer:gestureRecognizer];
+  AssertGestureRecognizerResultIsEmpty(gestureRecognizerResult);
+}
+
+- (void)testRecognizeWithScoreThresholdSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+  gestureRecognizerOptions.cannedGesturesClassifierOptions = [[MPPClassifierOptions alloc] init];
+  gestureRecognizerOptions.cannedGesturesClassifierOptions.scoreThreshold = 0.5f;
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+
+  MPPGestureRecognizerResult *gestureRecognizerResult =
+      [self recognizeImageWithFileInfo:kThumbUpImage usingGestureRecognizer:gestureRecognizer];
+
+  MPPGestureRecognizerResult *expectedGestureRecognizerResult =
+      [MPPGestureRecognizerTests thumbUpGestureRecognizerResult];
+
+  XCTAssertTrue(gestureRecognizerResult.gestures.count == 1);
+  AssertEqualGestures(gestureRecognizerResult.gestures[0][0],
+                      expectedGestureRecognizerResult.gestures[0][0], 0, 0);
+}
+
+- (void)testRecognizeWithNumHandsSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+
+  const NSInteger numberOfHands = 2;
+  gestureRecognizerOptions.numberOfHands = numberOfHands;
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+
+  MPPGestureRecognizerResult *gestureRecognizerResult =
+      [self recognizeImageWithFileInfo:kTwoHandsImage usingGestureRecognizer:gestureRecognizer];
+
+  XCTAssertTrue(gestureRecognizerResult.handedness.count == numberOfHands);
+}
+
+- (void)testRecognizeWithRotationSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+
+  const NSInteger numberOfHands = 2;
+  gestureRecognizerOptions.numberOfHands = numberOfHands;
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+  MPPImage *mppImage = [self imageWithFileInfo:kPointingUpRotatedImage
+                                   orientation:UIImageOrientationRight];
+
+  MPPGestureRecognizerResult *gestureRecognizerResult = [gestureRecognizer recognizeImage:mppImage
+                                                                                    error:nil];
+
+  XCTAssertNotNil(gestureRecognizerResult);
+
+  const NSInteger expectedGesturesCount = 1;
+
+  XCTAssertEqual(gestureRecognizerResult.gestures.count, expectedGesturesCount);
+  XCTAssertEqualObjects(gestureRecognizerResult.gestures[0][0].categoryName,
+                        kExpectedPointingUpLabel);
+}
+
+- (void)testRecognizeWithCannedGestureFistSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+
+  const NSInteger numberOfHands = 1;
+  gestureRecognizerOptions.numberOfHands = numberOfHands;
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+
+  [self assertResultsOfRecognizeImageWithFileInfo:kFistImage
+                           usingGestureRecognizer:gestureRecognizer
+       approximatelyEqualsGestureRecognizerResult:
+           [MPPGestureRecognizerTests fistGestureRecognizerResultWithLabel:kFistLabel]];
+}
+
+- (void)testRecognizeWithAllowGestureFistSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+  gestureRecognizerOptions.cannedGesturesClassifierOptions = [[MPPClassifierOptions alloc] init];
+  gestureRecognizerOptions.cannedGesturesClassifierOptions.scoreThreshold = 0.5f;
+  gestureRecognizerOptions.cannedGesturesClassifierOptions.categoryAllowlist = @[ kFistLabel ];
+
+  const NSInteger numberOfHands = 1;
+  gestureRecognizerOptions.numberOfHands = numberOfHands;
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+
+  [self assertResultsOfRecognizeImageWithFileInfo:kFistImage
+                           usingGestureRecognizer:gestureRecognizer
+       approximatelyEqualsGestureRecognizerResult:
+           [MPPGestureRecognizerTests fistGestureRecognizerResultWithLabel:kFistLabel]];
+}
+
+- (void)testRecognizeWithDenyGestureFistSucceeds {
+  MPPGestureRecognizerOptions *gestureRecognizerOptions =
+      [self gestureRecognizerOptionsWithModelFileInfo:kGestureRecognizerBundleAssetFile];
+  gestureRecognizerOptions.cannedGesturesClassifierOptions = [[MPPClassifierOptions alloc] init];
+  gestureRecognizerOptions.cannedGesturesClassifierOptions.scoreThreshold = 0.5f;
+  gestureRecognizerOptions.cannedGesturesClassifierOptions.categoryDenylist = @[ kFistLabel ];
+
+  const NSInteger numberOfHands = 1;
+  gestureRecognizerOptions.numberOfHands = numberOfHands;
+
+  MPPGestureRecognizer *gestureRecognizer =
+      [self createGestureRecognizerWithOptionsSucceeds:gestureRecognizerOptions];
+  MPPGestureRecognizerResult *gestureRecognizerResult =
+      [self recognizeImageWithFileInfo:kFistImage usingGestureRecognizer:gestureRecognizer];
+  AssertGestureRecognizerResultIsEmpty(gestureRecognizerResult);
+}
+
 @end