shell/core/src/test/java/org/apache/karaf/shell/support/ShellUtilTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.karaf.shell.support;

import static org.junit.Assert.assertEquals;

import java.util.AbstractList;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.List;

import org.junit.Test;

public class ShellUtilTest {

    @Test
    public void testGetValueStringWithCustomCollection() {
        List<Integer> data = new AbstractList<Integer>() {

            int[] values = new int[15];
            int size = 0;

            @Override
            public boolean add(Integer e) {
                values[size] = e;
                size++;
                return true;
            }

            @Override
            public Integer get(int index) {
                if ( index >= size ) throw new IndexOutOfBoundsException();
                return values[index];
            }

            @Override
            public int size() {
                return size;
            }

            @Override
            public String toString() {
                return "Custom" + super.toString();
            }
        };
        data.add(5);
        assertEquals("[5]", ShellUtil.getValueString(data));
    }

    @Test
    public void testGetValueString() {
        Object data;
        data = "Hello World";
        assertEquals("Hello World", ShellUtil.getValueString(data));

        data = new int[] { 1, 2, 3, 5, 7, 9 };
        assertEquals("[1, 2, 3, 5, 7, 9]", ShellUtil.getValueString(data));

        data = new short[] { 1, 2, 3, 5, 7, 9 };
        assertEquals("[1, 2, 3, 5, 7, 9]", ShellUtil.getValueString(data));

        data = new long[] { 1, 2, 3, 5, 7, 9 };
        assertEquals("[1, 2, 3, 5, 7, 9]", ShellUtil.getValueString(data));

        data = new byte[] { 1, 2, 3, 5, 7, 9 };
        assertEquals("[1, 2, 3, 5, 7, 9]", ShellUtil.getValueString(data));

        data = new float[] { 1, 2, 3, 5, 7, 9 };
        assertEquals("[1.0, 2.0, 3.0, 5.0, 7.0, 9.0]",
                ShellUtil.getValueString(data));

        data = new double[] { 1, 2, 3, 5, 7, 9 };
        assertEquals("[1.0, 2.0, 3.0, 5.0, 7.0, 9.0]",
                ShellUtil.getValueString(data));

        data = new boolean[] { true, true, false };
        assertEquals("[true, true, false]", ShellUtil.getValueString(data));

        data = new char[] { 'a', 'c', 'e' };
        assertEquals("[a, c, e]", ShellUtil.getValueString(data));

        data = new Object[] { new int[] { 1, 2, 3, 5, 8 },
                new char[] { 'h', 'e', 'l', 'l', 'o' }, "World" };
        assertEquals("[[1, 2, 3, 5, 8], [h, e, l, l, o], World]",
                ShellUtil.getValueString(data));

        data = Arrays.asList(5, 10, 15, 25);
        assertEquals("[5, 10, 15, 25]", ShellUtil.getValueString(data));

        data = new LinkedHashSet<>(Arrays.asList(5, 10, 15, 25));
        assertEquals("[5, 10, 15, 25]", ShellUtil.getValueString(data));

        data = new int[][] { { 1, 2, 3 }, { 5, 7, 9 } };
        assertEquals("[[1, 2, 3], [5, 7, 9]]", ShellUtil.getValueString(data));

    }

}