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TestSlidingWindow.java
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TestSlidingWindow.java
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/*
* Copyright (c) [2017] [Haibo(Tristan) Yan]
*
* 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.haibo.yan.algorithm.array;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.util.stream.DoubleStream;
import static java.util.stream.Collectors.joining;
import static org.testng.Assert.assertEquals;
public class TestSlidingWindow {
@DataProvider
public Object[][] maxSlideWindosDP() {
return new Object[][]{
{new int[]{1, 3, -1, -3, 5, 3, 6, 7}, 3, new int[]{3, 3, 5, 5, 6, 7}},
{new int[]{}, 0, new int[]{}},
{new int[]{1, 3, 1, 2, 0, 5}, 3, new int[]{3, 3, 2, 5}},
{new int[]{7, 2, 4}, 2, new int[]{7, 4}},
};
}
@Test(dataProvider = "maxSlideWindosDP")
public void testMax(int[] nums, int k, int[] maxWindows) {
assertEquals(SlidingWindow.maxSlidingWindow(nums, k), maxWindows);
}
@DataProvider
public Object[][] medSlideWindosDP() {
return new Object[][]{
{new int[]{1, 3, -1, -3, 5, 3, 6, 7}, 3, new double[]{1, -1, -1, 3, 5, 6}},
{new int[]{}, 0, new double[]{}},
{new int[]{1, 3, 1, 2, 0, 5}, 3, new double[]{1, 2, 1, 2}},
{new int[]{7, 2, 4}, 2, new double[]{4.5, 3}},
{new int[]{Integer.MAX_VALUE, Integer.MAX_VALUE}, 2, new double[]{Integer.MAX_VALUE}},
{new int[]{Integer.MIN_VALUE, Integer.MIN_VALUE, Integer.MAX_VALUE, Integer.MIN_VALUE, Integer.MIN_VALUE,
Integer.MIN_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
Integer.MIN_VALUE, Integer.MAX_VALUE, Integer.MIN_VALUE}, 3,
new double[]{Integer.MIN_VALUE, Integer.MIN_VALUE, Integer.MIN_VALUE, Integer.MIN_VALUE, Integer.MIN_VALUE,
Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE,
Integer.MIN_VALUE}}
};
}
@Test(dataProvider = "medSlideWindosDP")
public void testMed(int[] nums, int k, double[] medWindows) {
double[] actual = SlidingWindow.medianSlidingWindow(nums, k);
assertEquals(actual, medWindows, String.format("actual = %s, expected = %s",
DoubleStream.of(actual).mapToObj(String::valueOf).collect(joining(",", "[", "]")),
DoubleStream.of(medWindows).mapToObj(String::valueOf).collect(joining(",", "[", "]"))
));
}
@DataProvider
public Object[][] minSlideWindosDP() {
return new Object[][]{
{"abcdebdde", "bde", "bcde"}
};
}
@Test(dataProvider = "minSlideWindosDP")
public void testMin(String S, String T, String expected) {
assertEquals(new SlidingWindow().minWindowOrdered(S, T), expected);
}
}