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      1 /*
      2  * Copyright (C) 2009 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.gesture.cts;
     18 
     19 import android.gesture.Gesture;
     20 import android.gesture.GestureStroke;
     21 
     22 import java.util.Arrays;
     23 
     24 import junit.framework.Assert;
     25 
     26 /**
     27  * Helper class to assert that two Gestures are approximately equal
     28  */
     29 class GestureComparator {
     30 
     31     /**
     32      * Compare the contents of two (@link Gesture}'s
     33      *
     34      * @throws {@link junit.framework.AssertionFailedError} if Gesture's are not equal
     35      */
     36     void assertGesturesEquals(Gesture expectedGesture, Gesture observedGesture) {
     37         Assert.assertEquals(expectedGesture.getID(), observedGesture.getID());
     38         Assert.assertEquals(expectedGesture.getStrokesCount(), observedGesture.getStrokesCount());
     39 
     40         // now compare gesture strokes. Order is important
     41         for (int i=0; i < expectedGesture.getStrokesCount(); i++) {
     42             GestureStroke expectedStroke = expectedGesture.getStrokes().get(i);
     43             GestureStroke observedStroke = observedGesture.getStrokes().get(i);
     44             assertGestureStrokesEqual(expectedStroke, observedStroke);
     45         }
     46     }
     47 
     48     /**
     49      * Compare the contents of two {@link GestureStroke}
     50      *
     51      * @throws {@link junit.framework.AssertionFailedError} if GestureStroke's are not
     52      * equal
     53      */
     54     void assertGestureStrokesEqual(GestureStroke expectedStroke, GestureStroke observedStroke) {
     55         Assert.assertEquals(expectedStroke.length, observedStroke.length);
     56         Assert.assertTrue(Arrays.equals(expectedStroke.points, observedStroke.points));
     57     }
     58 }
     59