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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.
*/
package org.apache.harmony.security.tests.java.security;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.SecureRandom;
import java.security.SecureRandomSpi;
import java.security.Security;
public class SecureRandom2Test extends junit.framework.TestCase {
private static final byte[] SEED_BYTES = { (byte) 33, (byte) 15, (byte) -3,
(byte) 22, (byte) 77, (byte) -16, (byte) -33, (byte) 56 };
private static final int SEED_SIZE = 539;
private static final long SEED_VALUE = 5335486759L;
/**
* @tests java.security.SecureRandom#SecureRandom()
*/
public void test_Constructor() {
// Test for method java.security.SecureRandom()
new SecureRandom();
}
/**
* @tests java.security.SecureRandom#SecureRandom(byte[])
*/
public void test_Constructor$B() {
// Test for method java.security.SecureRandom(byte [])
new SecureRandom(SEED_BYTES);
}
/**
* @tests java.security.SecureRandom#generateSeed(int)
*/
public void test_generateSeedI() {
// Test for method byte [] java.security.SecureRandom.generateSeed(int)
byte[] seed = new SecureRandom().generateSeed(SEED_SIZE);
assertEquals("seed has incorrect size", SEED_SIZE, seed.length);
}
/**
* @tests java.security.SecureRandom#getInstance(java.lang.String)
*/
public void test_getInstanceLjava_lang_String() {
// Test for method java.security.SecureRandom
// java.security.SecureRandom.getInstance(java.lang.String)
try {
SecureRandom.getInstance("SHA1PRNG");
} catch (NoSuchAlgorithmException e) {
fail("getInstance did not find a SHA1PRNG algorithm");
}
}
/**
* @tests java.security.SecureRandom#getInstance(java.lang.String,
*java.lang.String)
*/
public void test_getInstanceLjava_lang_StringLjava_lang_String() {
// Test for method java.security.SecureRandom
// java.security.SecureRandom.getInstance(java.lang.String,
// java.lang.String)
try {
Provider[] providers = Security
.getProviders("SecureRandom.SHA1PRNG");
if (providers != null) {
for (int i = 0; i < providers.length; i++) {
SecureRandom
.getInstance("SHA1PRNG", providers[i].getName());
}// end for
} else {
fail("No providers support SHA1PRNG");
}
} catch (NoSuchAlgorithmException e) {
fail("getInstance did not find a SHA1PRNG algorithm");
} catch (NoSuchProviderException e) {
fail("getInstance did not find the provider for SHA1PRNG");
}
}
/**
* @tests java.security.SecureRandom#getSeed(int)
*/
public void test_getSeedI() {
// Test for method byte [] java.security.SecureRandom.getSeed(int)
byte[] seed = SecureRandom.getSeed(SEED_SIZE);
assertEquals("seed has incorrect size", SEED_SIZE, seed.length);
}
/**
* @tests java.security.SecureRandom#nextBytes(byte[])
*/
public void test_nextBytes$B() {
// Test for method void java.security.SecureRandom.nextBytes(byte [])
byte[] bytes = new byte[313];
new SecureRandom().nextBytes(bytes);
}
/**
* @tests java.security.SecureRandom#setSeed(byte[])
*/
public void test_setSeed$B() {
// Test for method void java.security.SecureRandom.setSeed(byte [])
new SecureRandom().setSeed(SEED_BYTES);
}
/**
* @tests java.security.SecureRandom#setSeed(long)
*/
public void test_setSeedJ() {
// Test for method void java.security.SecureRandom.setSeed(long)
new SecureRandom().setSeed(SEED_VALUE);
}
/**
* @tests java.security.SecureRandom#getAlgorithm()
*/
public void test_getAlgorithm() {
// Regression for HARMONY-750
SecureRandomSpi spi = new SecureRandomSpi() {
protected void engineSetSeed(byte[] arg) {
}
protected void engineNextBytes(byte[] arg) {
}
protected byte[] engineGenerateSeed(int arg) {
return null;
}
};
SecureRandom sr = new SecureRandom(spi, null) {
};
assertEquals("unknown", sr.getAlgorithm());
}
//Regression Test for HARMONY-3552.
public void test_nextJ() throws Exception {
MySecureRandom mySecureRandom = new MySecureRandom(
new MySecureRandomSpi(), null);
int numBits = 29;
int random = mySecureRandom.getNext(numBits);
assertEquals(numBits, Integer.bitCount(random));
numBits = 0;
random = mySecureRandom.getNext(numBits);
assertEquals(numBits, Integer.bitCount(random));
numBits = 40;
random = mySecureRandom.getNext(numBits);
assertEquals(32, Integer.bitCount(random));
numBits = -1;
random = mySecureRandom.getNext(numBits);
assertEquals(0, Integer.bitCount(random));
}
class MySecureRandom extends SecureRandom {
private static final long serialVersionUID = 1L;
public MySecureRandom(SecureRandomSpi secureRandomSpi, Provider provider) {
super(secureRandomSpi, provider);
}
public int getNext(int numBits) {
return super.next(numBits);
}
}
class MySecureRandomSpi extends SecureRandomSpi {
private static final long serialVersionUID = 1L;
@Override
protected byte[] engineGenerateSeed(int arg0) {
return null;
}
@Override
protected void engineNextBytes(byte[] bytes) {
for (int i = 0; i < bytes.length; i++) {
bytes[i] = (byte) 0xFF;
}
}
@Override
protected void engineSetSeed(byte[] arg0) {
return;
}
}
}
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