/*
 *  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 Boris V. Kuznetsov
 */

package java.security;

import org.apache.harmony.security.tests.support.MySignature1;

import junit.framework.TestCase;

/**
 * Tests for <code>Signature</code> constructor and methods
 */
public class SignatureTest extends TestCase {

    /*
      * Class under test for Object clone()
      */
    public void testClone() {
        MySignature1 s = new MySignature1("ABC");
        try {
            s.clone();
            fail("No expected CloneNotSupportedException");
        } catch (CloneNotSupportedException e) {
        }
    }

    public void testGetProvider() {
        MySignature1 s = new MySignature1("ABC");

        assertEquals("state", Signature.UNINITIALIZED, s.getState());
        assertNull("provider", s.getProvider());
    }

    public void testGetAlgorithm() {
        MySignature1 s = new MySignature1("ABC");

        assertEquals("state", Signature.UNINITIALIZED, s.getState());
        assertEquals("algorithm", "ABC", s.getAlgorithm());
    }

    /*
      * Class under test for void initVerify(PublicKey)
      */
    public void testInitVerifyPublicKey() throws InvalidKeyException {
        MySignature1 s = new MySignature1("ABC");

        s.initVerify(new MyPublicKey());
        assertEquals("state", Signature.VERIFY, s.getState());
        assertTrue("initVerify() failed", s.runEngineInitVerify);
    }

    /*
      * Class under test for void initVerify(Certificate)
      */
    public void testInitVerifyCertificate() throws InvalidKeyException {
        MySignature1 s = new MySignature1("ABC");

        s.initVerify(new MyCertificate());
        assertEquals("state", Signature.VERIFY, s.getState());
        assertTrue("initVerify() failed", s.runEngineInitVerify);
    }

    /*
      * Class under test for void initSign(PrivateKey)
      */
    public void testInitSignPrivateKey() throws InvalidKeyException {
        MySignature1 s = new MySignature1("ABC");

        s.initSign(new MyPrivateKey());
        assertEquals("state", Signature.SIGN, s.getState());
        assertTrue("initSign() failed", s.runEngineInitSign);
    }

    /*
      * Class under test for void initSign(PrivateKey, SecureRandom)
      */
    public void testInitSignPrivateKeySecureRandom() throws InvalidKeyException {
        MySignature1 s = new MySignature1("ABC");

        s.initSign(new MyPrivateKey(), new SecureRandom());
        assertEquals("state", Signature.SIGN, s.getState());
        assertTrue("initSign() failed", s.runEngineInitSign);
    }

    /*
      * Class under test for byte[] sign()
      */
    public void testSign() throws Exception {
        MySignature1 s = new MySignature1("ABC");
        try {
            s.sign();
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initVerify(new MyPublicKey());

        try {
            s.sign();
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initSign(new MyPrivateKey());
        s.sign();
        assertEquals("state", Signature.SIGN, s.getState());
        assertTrue("sign() failed", s.runEngineSign);
    }

    /*
      * Class under test for boolean verify(byte[])
      */
    public void testVerifybyteArray() throws Exception {
        MySignature1 s = new MySignature1("ABC");
        byte[] b = { 1, 2, 3, 4 };
        try {
            s.verify(b);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initSign(new MyPrivateKey());
        try {
            s.verify(b);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initVerify(new MyPublicKey());
        s.verify(b);
        assertEquals("state", Signature.VERIFY, s.getState());
        assertTrue("verify() failed", s.runEngineVerify);
    }

    /*
      * Class under test for boolean verify(byte[], int, int)
      */
    public void testVerifybyteArrayintint() throws Exception {
        MySignature1 s = new MySignature1("ABC");
        byte[] b = { 1, 2, 3, 4 };
        try {
            s.verify(b, 0, 3);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initSign(new MyPrivateKey());

        try {
            s.verify(b, 0, 3);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initVerify(new MyPublicKey());

        try {
            s.verify(b, 0, 5);
            fail("No expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
        }

        s.verify(b, 0, 3);
        assertEquals("state", Signature.VERIFY, s.getState());
        assertTrue("verify() failed", s.runEngineVerify);
    }

    /*
      * Class under test for void update(byte)
      */
    public void testUpdatebyte() throws Exception {
        MySignature1 s = new MySignature1("ABC");
        try {
            s.update((byte) 1);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initVerify(new MyPublicKey());
        s.update((byte) 1);
        s.initSign(new MyPrivateKey());
        s.update((byte) 1);

        assertEquals("state", Signature.SIGN, s.getState());
        assertTrue("update() failed", s.runEngineUpdate1);
    }

    /*
      * Class under test for void update(byte[])
      */
    public void testUpdatebyteArray() throws Exception {
        MySignature1 s = new MySignature1("ABC");
        byte[] b = { 1, 2, 3, 4 };
        try {
            s.update(b);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initVerify(new MyPublicKey());
        s.update(b);
        s.initSign(new MyPrivateKey());
        s.update(b);

        assertEquals("state", Signature.SIGN, s.getState());
        assertTrue("update() failed", s.runEngineUpdate2);
    }

    /*
      * Class under test for void update(byte[], int, int)
      */
    public void testUpdatebyteArrayintint() throws Exception {
        MySignature1 s = new MySignature1("ABC");
        byte[] b = { 1, 2, 3, 4 };
        try {
            s.update(b, 0, 3);
            fail("No expected SignatureException");
        } catch (SignatureException e) {
        }

        s.initVerify(new MyPublicKey());
        s.update(b, 0, 3);
        s.initSign(new MyPrivateKey());
        s.update(b, 0, 3);

        assertEquals("state", Signature.SIGN, s.getState());
        assertTrue("update() failed", s.runEngineUpdate2);
    }

    /*
      * Class under test for void setParameter(String, Object)
      */
    public void testSetParameterStringObject() {
        MySignature1 s = new MySignature1("ABC");
        s.setParameter("aaa", new Object());
    }

    /*
      * Class under test for void setParameter(AlgorithmParameterSpec)
      */
    public void testSetParameterAlgorithmParameterSpec() throws InvalidAlgorithmParameterException {
        MySignature1 s = new MySignature1("ABC");
        try {
            s.setParameter((java.security.spec.AlgorithmParameterSpec) null);
            fail("No expected UnsupportedOperationException");
        } catch (UnsupportedOperationException e) {
        }
    }

    public void testGetParameter() {
        MySignature1 s = new MySignature1("ABC");
        s.getParameter("aaa");
    }

    private class MyKey implements Key {
        public String getFormat() {
            return "123";
        }

        public byte[] getEncoded() {
            return null;
        }

        public String getAlgorithm() {
            return "aaa";
        }
    }

    private class MyPublicKey extends MyKey implements PublicKey {
    }

    private class MyPrivateKey extends MyKey implements PrivateKey {
    }

    private class MyCertificate extends java.security.cert.Certificate {
        public MyCertificate() {
            super("MyCertificateType");
        }

        public PublicKey getPublicKey() {
            return new MyPublicKey();
        }

        public byte[] getEncoded() {
            return null;
        }

        public void verify(PublicKey key) {
        }

        public void verify(PublicKey key, String sigProvider) {
        }

        public String toString() {
            return "MyCertificate";
        }
    }
}