1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package tests.security.spec;
18
19import junit.framework.TestCase;
20
21import java.math.BigInteger;
22import java.security.spec.ECFieldF2m;
23import java.security.spec.ECParameterSpec;
24import java.security.spec.ECPoint;
25import java.security.spec.ECPrivateKeySpec;
26import java.security.spec.EllipticCurve;
27
28public class ECPrivateKeySpecTest extends TestCase {
29
30    BigInteger s;
31
32    ECParameterSpec ecparams;
33
34    ECPrivateKeySpec ecpks;
35
36    protected void setUp() throws Exception {
37        super.setUp();
38
39        ECPoint ecpoint = new ECPoint(BigInteger.valueOf(1), BigInteger
40                .valueOf(1));
41        EllipticCurve curve = new EllipticCurve(new ECFieldF2m(2), BigInteger
42                .valueOf(1), BigInteger.valueOf(1));
43
44        s = BigInteger.valueOf(1);
45        ecparams = new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(1), 1);
46        ecpks = new ECPrivateKeySpec(s, ecparams);
47    }
48
49    protected void tearDown() throws Exception {
50        s = null;
51        ecparams = null;
52        ecpks = null;
53        super.tearDown();
54    }
55
56    /**
57     * test for constructor ECPrivateKeySpec(BigInteger, ECParameterSpec)
58     * test covers following usecases:
59     * case 1: creating object with valid parameters
60     * case 2: catch NullPointerException - if s is null.
61     * case 3: catch NullPointerException - if params is null.
62     */
63    public void test_constructorLjava_math_BigIntegerLjava_security_spec_ECParameterSpec() {
64
65        // case 1: creating object with valid parameters
66        assertEquals("wrong private value", s, ecpks.getS());
67        assertEquals("wrong parameters", ecparams, ecpks.getParams());
68
69        // case 2: catch NullPointerException - if s is null.
70        try {
71            new ECPrivateKeySpec(null, ecparams);
72            fail("NullPointerException has not been thrown");
73        } catch (NullPointerException e) {
74            // expected
75        }
76
77        // case 3: catch NullPointerException - if params is null.
78        try {
79            new ECPrivateKeySpec(s, null);
80            fail("NullPointerException has not been thrown");
81        } catch (NullPointerException e) {
82            // expected
83        }
84    }
85
86    /**
87     * test for getS() method
88     */
89    public void test_GetS() {
90        assertEquals("wrong private value", s, ecpks.getS());
91    }
92
93    /**
94     * test for getParams() method
95     */
96    public void test_GetParams() {
97        assertEquals("wrong parameters", ecparams, ecpks.getParams());
98    }
99}
100