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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed 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 tests.security.spec;
import junit.framework.TestCase;
import java.math.BigInteger;
import java.security.spec.ECFieldF2m;
import java.security.spec.ECParameterSpec;
import java.security.spec.ECPoint;
import java.security.spec.EllipticCurve;
public class ECParameterSpecTest extends TestCase {
EllipticCurve curve;
ECPoint ecpoint;
ECParameterSpec ecps;
protected void setUp() throws Exception {
super.setUp();
curve = new EllipticCurve(new ECFieldF2m(2), BigInteger.valueOf(1),
BigInteger.valueOf(1));
ecpoint = new ECPoint(BigInteger.valueOf(1), BigInteger.valueOf(1));
ecps = new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(1), 1);
}
protected void tearDown() throws Exception {
curve = null;
ecpoint = null;
ecps = null;
super.tearDown();
}
/**
* test for ECParameterSpec(EllipticCurve, ECPoint, BigInteger, int) constructor
* test covers following usecases:
* case 1: creating object with valid parameters
* case 2: NullPointerException - if curve is null
* case 3: NullPointerException - if g is null
* case 4: NullPointerException - if n is null
* case 5: IllegalArgumentException - if n is not positive
* case 6: IllegalArgumentException - if h is not positive
*/
public void test_constructorLjava_security_spec_EllipticCurveLjava_security_spec_ECPointLjava_math_BigIntegerI() {
// case 1: creating object with valid parameters
assertEquals("wrong cofactor was returned", 1, ecps.getCofactor());
assertEquals("wrong elliptic curve", curve, ecps.getCurve());
assertEquals("wrong generator was returned", ecpoint, ecps
.getGenerator());
assertEquals("wrong order was reteurned", BigInteger.valueOf(1), ecps
.getOrder());
// case 2: NullPointerException - if curve is null.
try {
new ECParameterSpec(null, ecpoint, BigInteger.valueOf(1), 1);
fail("NullPointerException exception has not been thrown");
} catch (NullPointerException e) {
// expected
}
// case 3: NullPointerException - if g is null.
try {
new ECParameterSpec(curve, null, BigInteger.valueOf(1), 1);
fail("NullPointerException exception has not been thrown");
} catch (NullPointerException e) {
// expected
}
// case 4: NullPointerException - if n is null.
try {
new ECParameterSpec(curve, ecpoint, null, 1);
fail("NullPointerException exception has not been thrown");
} catch (NullPointerException e) {
// expected
}
// case 5: IllegalArgumentException - if n is not positive.
try {
new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(-1), 1);
fail("IllegalArgumentException exception has not been thrown");
} catch (IllegalArgumentException e) {
// expected
}
// case 6: IllegalArgumentException - if h is not positive.
try {
new ECParameterSpec(curve, ecpoint, BigInteger.valueOf(1), -1);
fail("IllegalArgumentException exception has not been thrown");
} catch (IllegalArgumentException e) {
// expected
}
}
/**
* test for getCurve() method
*/
public void test_GetCurve() {
assertEquals("wrong elliptic curve", curve, ecps.getCurve());
}
/**
* test for getGenerator() method
*/
public void test_GetGenerator() {
assertEquals("wrong generator was returned", ecpoint, ecps
.getGenerator());
}
/**
* test for getOrder() method
*/
public void test_GetOrder() {
assertEquals("wrong order was reteurned", BigInteger.valueOf(1), ecps
.getOrder());
}
/**
* test for getCofactor() method
*/
public void test_GetCofactor() {
assertEquals("wrong cofactor was returned", 1, ecps.getCofactor());
}
}
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