1/*
2 *  Licensed to the Apache Software Foundation (ASF) under one or more
3 *  contributor license agreements.  See the NOTICE file distributed with
4 *  this work for additional information regarding copyright ownership.
5 *  The ASF licenses this file to You under the Apache License, Version 2.0
6 *  (the "License"); you may not use this file except in compliance with
7 *  the License.  You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 */
17
18/**
19 * @author Alexander Y. Kleymenov
20 */
21
22package org.apache.harmony.crypto.tests.javax.crypto.spec;
23
24import java.lang.Integer;
25import java.math.BigInteger;
26
27import javax.crypto.spec.DHParameterSpec;
28
29import junit.framework.Test;
30import junit.framework.TestCase;
31import junit.framework.TestSuite;
32
33/**
34 */
35
36public class DHParameterSpecTest extends TestCase {
37
38    /**
39     * DHParameterSpec class testing. Tests the equivalence of parameters
40     * specified in the constructor with the values returned by getters.
41     * The tested object is created by different constructors.
42     */
43    public void testDHParameterSpec() {
44        BigInteger[] ps = { new BigInteger("-1000000000000"), BigInteger.ZERO,
45                BigInteger.ONE, new BigInteger("1000000000000") };
46        BigInteger[] gs = { new BigInteger("-1000000000000"), BigInteger.ZERO,
47                BigInteger.ONE, new BigInteger("1000000000000") };
48        int[] ls = { Integer.MIN_VALUE, 0, 1, Integer.MAX_VALUE };
49        for (int i = 0; i < ps.length; i++) {
50            DHParameterSpec dhps = new DHParameterSpec(ps[i], gs[i]);
51            assertEquals("The value returned by getP() must be "
52                    + "equal to the value specified in the constructor",
53                    dhps.getP(), ps[i]);
54            assertEquals("The value returned by getG() must be "
55                    + "equal to the value specified in the constructor",
56                    dhps.getG(), gs[i]);
57        }
58        for (int i = 0; i < ps.length; i++) {
59            DHParameterSpec dhps = new DHParameterSpec(ps[i], gs[i], ls[i]);
60            assertEquals("The value returned by getP() must be "
61                    + "equal to the value specified in the constructor",
62                    dhps.getP(), ps[i]);
63            assertEquals("The value returned by getG() must be "
64                    + "equal to the value specified in the constructor",
65                    dhps.getG(), gs[i]);
66            assertEquals("The value returned by getL() must be "
67                    + "equal to the value specified in the constructor",
68                    dhps.getL(), ls[i]);
69        }
70    }
71
72    public static Test suite() {
73        return new TestSuite(DHParameterSpecTest.class);
74    }
75
76}
77