com.rest4j.impl.UtilTest.java Source code

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Here is the source code for com.rest4j.impl.UtilTest.java

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/*
 * 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 com.rest4j.impl;

import com.rest4j.impl.petapi.RelationType;
import org.apache.commons.lang.StringUtils;
import org.junit.Test;

import java.io.IOException;
import java.io.Serializable;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadMXBean;
import java.util.List;

import static org.junit.Assert.*;

/**
 * @author Joseph Kapizza <joseph@rest4j.com>
 */
public class UtilTest {
    static List<String> listField;

    @Test
    public void testGetClass_simple() {
        assertSame(String.class, Util.getClass(String.class));
    }

    @Test
    public void testGetClass_list() throws NoSuchFieldException {
        assertSame(List.class, Util.getClass(getClass().getDeclaredField("listField").getGenericType()));
    }

    @Test(expected = AssertionError.class)
    public void testGetEnumConstant_failure() {
        Util.getEnumConstant(RelationType.class, "zzz");
    }

    @Test
    public void testGetEnumConstant_success() {
        assertEquals(RelationType.mated, Util.getEnumConstant(RelationType.class, "mated"));
    }

    @Test(expected = IllegalArgumentException.class)
    public void testGetParameterNames_not_found() throws IOException {
        Util.getParameterNames(UtilTest.class, "zzz");
    }

    @Test(expected = IllegalArgumentException.class)
    public void testGetParameterNames_static() throws IOException {
        Util.getParameterNames(Util.class, "getParameterNames");
    }

    @Test
    public void testGetParameterNames_no_params() throws IOException {
        String[] names = Util.getParameterNames(UtilTest.class, "noParamsMethod");
        assertEquals(0, names.length);
    }

    @Test
    public void testGetParameterNames_params() throws IOException {
        String[] names = Util.getParameterNames(UtilTest.class, "methodWithParams");
        assertArrayEquals(new String[] { "param1", "param2" }, names);
    }

    @Test
    public void testGetParameterNames_nested_class() throws IOException {
        Runnable some = new Runnable() {
            public void run() {
            }

            public void test(String a) {
            }
        };
        String[] names = Util.getParameterNames(some.getClass(), "test");
        assertArrayEquals(new String[] { "a" }, names);
    }

    static class Tree implements Serializable {
        String name;
        int a, b, c, d, e;
        double f, g, h;
        Tree left, right;
    }

    @Test
    public void testClone() {
        Tree test = new Tree();
        test.name = StringUtils.repeat("TEST", 10000);
        test.left = new Tree();
        test.right = test.left;

        ThreadMXBean threadMx = ManagementFactory.getThreadMXBean();
        long start = threadMx.getCurrentThreadCpuTime();
        int N = 10000;
        for (int i = 0; i < N; i++)
            test = Util.deepClone(test);
        System.out.println("cloned in " + (threadMx.getCurrentThreadCpuTime() - start) / N + "ns");
        assertSame(test.left, test.right);
    }

    void noParamsMethod() {
    }

    void methodWithParams(String param1, String param2) {
    }

}