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      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 
     17 package tests.security.spec;
     18 
     19 import junit.framework.TestCase;
     20 
     21 import java.math.BigInteger;
     22 import java.security.spec.ECFieldF2m;
     23 import java.security.spec.ECParameterSpec;
     24 import java.security.spec.ECPoint;
     25 import java.security.spec.ECPublicKeySpec;
     26 import java.security.spec.EllipticCurve;
     27 
     28 public class ECPublicKeySpecTest extends TestCase {
     29     ECPoint w;
     30 
     31     ECParameterSpec params;
     32 
     33     ECPublicKeySpec ecpks;
     34 
     35     protected void setUp() throws Exception {
     36         super.setUp();
     37         ECPoint ecpoint = new ECPoint(BigInteger.valueOf(1), BigInteger
     38                 .valueOf(1));
     39         EllipticCurve curve = new EllipticCurve(new ECFieldF2m(2), BigInteger
     40                 .valueOf(1), BigInteger.valueOf(1));
     41 
     42         w = new ECPoint(BigInteger.valueOf(1), BigInteger.valueOf(1));
     43         params = new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(1), 1);
     44         ecpks = new ECPublicKeySpec(w, params);
     45     }
     46 
     47     protected void tearDown() throws Exception {
     48         w = null;
     49         params = null;
     50         ecpks = null;
     51         super.tearDown();
     52     }
     53 
     54     /**
     55      * test for constructor ECPublicKeySpec(ECPoint, ECParameterSpec)
     56      * test covers following usecases:
     57      * case 1: creating object with valid parameters
     58      * case 2: catch NullPointerException - if w is null.
     59      * case 3: catch NullPointerException - if params is null.
     60      */
     61     public final void test_constructorLjava_security_spec_ECPointLjava_security_spec_ECParameterSpec() {
     62 
     63         // case 1: creating object with valid parameters
     64         assertEquals("wrong params value", params, ecpks.getParams());
     65         assertEquals("wrong w value", w, ecpks.getW());
     66 
     67         // case 2: catch NullPointerException - if w is null.
     68         try {
     69             new ECPublicKeySpec(null, params);
     70             fail("NullPointerException has not been thrown");
     71         } catch (NullPointerException e) {
     72             // expected
     73         }
     74 
     75         // case 3: catch NullPointerException - if params is null.
     76         try {
     77             new ECPublicKeySpec(w, null);
     78             fail("NullPointerException has not been thrown");
     79         } catch (NullPointerException e) {
     80             // expected
     81         }
     82     }
     83 
     84     /**
     85      * test for getW() method
     86      */
     87     public final void testGetW() {
     88         assertEquals("wrong w value", w, ecpks.getW());
     89     }
     90 
     91     /**
     92      * test for getParams() meyhod
     93      */
     94     public final void testGetParams() {
     95         assertEquals("wrong params value", params, ecpks.getParams());
     96     }
     97 }
     98