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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.
*/
/**
* @author Vladimir N. Molotkov
* @version $Revision$
*/
package tests.security.spec;
import junit.framework.TestCase;
import java.math.BigInteger;
import java.security.spec.ECFieldFp;
/**
* Tests for <code>ECFieldFp</code> class fields and methods.
*
*/
public class ECFieldFpTest extends TestCase {
//
// Tests
//
/**
* Test #1 for <code>ECFieldFp</code> constructor
*
* Assertion: creates new object of <code>ECFieldFp</code> class
* using valid <code>p</code> (odd prime)
*/
public final void testECFieldFp01() {
new ECFieldFp(BigInteger.valueOf(23L));
}
/**
* Test #2 for <code>ECFieldFp</code> constructor
*
* Assertion: creates new object of <code>ECFieldFp</code> class
* using valid <code>p</code> (odd but not prime)
*/
public final void testECFieldFp02() {
new ECFieldFp(BigInteger.valueOf(21L));
}
/**
* Test #3 for <code>ECFieldFp</code> constructor
*
* Assertion: IllegalArgumentException if <code>p</code> is not positive
*/
public final void testECFieldFp03() {
try {
new ECFieldFp(BigInteger.valueOf(-1L));
fail(getName() +
" FAILED: expected exception has not been thrown");
} catch (IllegalArgumentException e) {
}
}
/**
* Test #4 for <code>ECFieldFp</code> constructor
*
* Assertion: IllegalArgumentException if <code>p</code> is not positive
*/
public final void testECFieldFp04() {
try {
new ECFieldFp(BigInteger.valueOf(0L));
fail(getName() +
" FAILED: expected exception has not been thrown");
} catch (IllegalArgumentException e) {
}
}
/**
* Test #4 for <code>ECFieldFp</code> constructor
*
* Assertion: NullPointerException if <code>p</code> is null
*/
public final void testECFieldFp05() {
try {
new ECFieldFp(null);
fail(getName() +
" FAILED: expected exception has not been thrown");
} catch (NullPointerException e) {
}
}
/**
* Test #1 for <code>hashCode()</code> method.<br>
*
* Assertion: must return the same value if invoked
* repeatedly on the same object.
*/
public final void testHashCode01() {
ECFieldFp f = new ECFieldFp(BigInteger.valueOf(23L));
int hc = f.hashCode();
assertTrue(hc == f.hashCode() &&
hc == f.hashCode() &&
hc == f.hashCode() &&
hc == f.hashCode() &&
hc == f.hashCode() &&
hc == f.hashCode() &&
hc == f.hashCode() &&
hc == f.hashCode());
}
/**
* Test #2 for <code>hashCode()</code> method.<br>
*
* Assertion: must return the same value if invoked
* on equal (according to the <code>equals(Object)</code> method) objects.
*/
public final void testHashCode02() {
assertTrue(new ECFieldFp(BigInteger.valueOf(23L)).hashCode() ==
new ECFieldFp(BigInteger.valueOf(23L)).hashCode());
}
/**
* Test for <code>getFieldSize()()</code> method.<br>
*
* Assertion: returns field size in bits which is prime size
*/
public final void testGetFieldSize() {
assertEquals(5, new ECFieldFp(BigInteger.valueOf(23L)).getFieldSize());
}
/**
* Test for <code>getP()</code> method.<br>
*
* Assertion: returns prime
*/
public final void testGetP() {
BigInteger p = BigInteger.valueOf(23L);
assertTrue(p.equals(new ECFieldFp(p).getP()));
}
/**
* Test #1 for <code>equals()</code> method.<br>
*
* Assertion: object equals to itself.
*/
public final void testEqualsObject01() {
ECFieldFp obj = new ECFieldFp(BigInteger.valueOf(23L));
assertTrue(obj.equals(obj));
}
/**
* Test #2 for <code>equals(Object obj)</code> method.<br>
*
* Assertion: returns false if <code>obj</code> is <code>null</code>
*/
public final void testEqualsObject02() {
assertFalse(new ECFieldFp(BigInteger.valueOf(23L)).equals(null));
}
/**
* Test #3 for <code>equals(Object obj)</code> method.<br>
*
* Assertion: returns false if <code>obj</code>
* is not instance of <code>ECFieldFp</code>
*/
public final void testEqualsObject03() {
assertFalse(new ECFieldFp(BigInteger.valueOf(23L)).equals(new Object()));
}
/**
* Test #4 for <code>equals()</code> method.<br>
*
* Assertion: true if prime values match.
*/
public final void testEqualsObject04() {
assertTrue(new ECFieldFp(BigInteger.valueOf(23L)).equals(
new ECFieldFp(BigInteger.valueOf(23L))));
}
}
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