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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.keyboard.internal;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import com.android.inputmethod.keyboard.internal.MatrixUtils.MatrixOperationFailedException;
import org.junit.Test;
import org.junit.runner.RunWith;
@SmallTest
@RunWith(AndroidJUnit4.class)
public class SmoothingUtilsTests {
// "run tests" -c com.android.inputmethod.keyboard.internal.SmoothingUtilsTests
private static final boolean DEBUG = false;
@Test
public void testGet3DParamaters() {
final float[] xs = new float[] {0, 1, 2, 3, 4};
final float[] ys = new float[] {1, 4, 15, 40, 85}; // y = x^3 + x^2 + x + 1
final float[][] retval = new float[4][1];
try {
SmoothingUtils.get3DParameters(xs, ys, retval);
if (DEBUG) {
MatrixUtils.dump("3d", retval);
}
for (int i = 0; i < 4; ++i) {
assertEquals(retval[i][0], 1.0f, 0.001f);
}
} catch (MatrixOperationFailedException e) {
assertTrue(false);
}
}
}
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