Add tests for Recovery Controller Parcelables

/*

 * Copyright (C) 2018 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 android.security.keystore.recovery;

import static org.junit.Assert.assertArrayEquals;

import static org.junit.Assert.assertEquals;

import android.os.Parcel;

import android.support.test.filters.SmallTest;

import android.support.test.runner.AndroidJUnit4;

import org.junit.Test;

import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)

@SmallTest

public class KeyChainProtectionParamsTest {

    private static final byte[] SALT = new byte[] { 0, 1, 2, 3, 4, 5 };

    private static final byte[] SECRET = new byte[] { 5, 4, 3, 2, 1, 0 };

    private static final int USER_SECRET_TYPE = KeyChainProtectionParams.TYPE_LOCKSCREEN;

    private static final int LOCK_SCREEN_UI_FORMAT = KeyChainProtectionParams.UI_FORMAT_PATTERN;

    @Test

    public void build_setsSecret() {

        assertArrayEquals(SECRET, createTestParams().getSecret());

    }

    @Test

    public void build_setsLockScreenUiFormat() {

        assertEquals(LOCK_SCREEN_UI_FORMAT, createTestParams().getLockScreenUiFormat());

    }

    @Test

    public void build_setsUserSecretType() {

        assertEquals(USER_SECRET_TYPE, createTestParams().getUserSecretType());

    }

    @Test

    public void build_setsKeyDerivationParams() {

        KeyChainProtectionParams protParams = createTestParams();

        KeyDerivationParams keyDerivationParams = protParams.getKeyDerivationParams();

        assertEquals(KeyDerivationParams.ALGORITHM_SHA256, keyDerivationParams.getAlgorithm());

        assertArrayEquals(SALT, keyDerivationParams.getSalt());

    }

    @Test

    public void writeToParcel_writesSecret() {

        KeyChainProtectionParams protParams = writeToThenReadFromParcel(createTestParams());

        assertArrayEquals(SECRET, protParams.getSecret());

    }

    @Test

    public void writeToParcel_writesUserSecretType() {

        KeyChainProtectionParams protParams = writeToThenReadFromParcel(createTestParams());

        assertEquals(USER_SECRET_TYPE, protParams.getUserSecretType());

    }

    @Test

    public void writeToParcel_writesLockScreenUiFormat() {

        KeyChainProtectionParams protParams = writeToThenReadFromParcel(createTestParams());

        assertEquals(LOCK_SCREEN_UI_FORMAT, protParams.getLockScreenUiFormat());

    }

    @Test

    public void writeToParcel_writesKeyDerivationParams() {

        KeyChainProtectionParams protParams = writeToThenReadFromParcel(createTestParams());

        KeyDerivationParams keyDerivationParams = protParams.getKeyDerivationParams();

        assertEquals(KeyDerivationParams.ALGORITHM_SHA256, keyDerivationParams.getAlgorithm());

        assertArrayEquals(SALT, keyDerivationParams.getSalt());

    }

    private KeyChainProtectionParams writeToThenReadFromParcel(KeyChainProtectionParams params) {

        Parcel parcel = Parcel.obtain();

        params.writeToParcel(parcel, /*flags=*/ 0);

        parcel.setDataPosition(0);

        KeyChainProtectionParams fromParcel =

                KeyChainProtectionParams.CREATOR.createFromParcel(parcel);

        parcel.recycle();

        return fromParcel;

    }

    private KeyChainProtectionParams createTestParams() {

        return new KeyChainProtectionParams.Builder()

                .setKeyDerivationParams(KeyDerivationParams.createSha256Params(SALT))

                .setSecret(SECRET)

                .setUserSecretType(USER_SECRET_TYPE)

                .setLockScreenUiFormat(LOCK_SCREEN_UI_FORMAT)

                .build();

    }

}

/*

 * Copyright (C) 2018 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 android.security.keystore.recovery;

import static org.junit.Assert.assertArrayEquals;

import static org.junit.Assert.assertEquals;

import android.os.Parcel;

import android.support.test.filters.SmallTest;

import android.support.test.runner.AndroidJUnit4;

import org.junit.Test;

import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)

@SmallTest

public class KeyDerivationParamsTest {

    private static final byte[] SALT = new byte[] { 0, 1, 2, 3 };

    @Test

    public void createSha256Params_setsAlgorithm() {

        KeyDerivationParams keyDerivationParams = KeyDerivationParams.createSha256Params(SALT);

        assertEquals(KeyDerivationParams.ALGORITHM_SHA256, keyDerivationParams.getAlgorithm());

    }

    @Test

    public void createSha256Params_setsSalt() {

        KeyDerivationParams keyDerivationParams = KeyDerivationParams.createSha256Params(SALT);

        assertArrayEquals(SALT, keyDerivationParams.getSalt());

    }

    @Test

    public void writeToParcel_writesAlgorithm() {

        KeyDerivationParams keyDerivationParams =

                writeToThenReadFromParcel(KeyDerivationParams.createSha256Params(SALT));

        assertEquals(KeyDerivationParams.ALGORITHM_SHA256, keyDerivationParams.getAlgorithm());

    }

    @Test

    public void writeToParcel_writesSalt() {

        KeyDerivationParams keyDerivationParams =

                writeToThenReadFromParcel(KeyDerivationParams.createSha256Params(SALT));

        assertArrayEquals(SALT, keyDerivationParams.getSalt());

    }

    private KeyDerivationParams writeToThenReadFromParcel(KeyDerivationParams params) {

        Parcel parcel = Parcel.obtain();

        params.writeToParcel(parcel, /*flags=*/ 0);

        parcel.setDataPosition(0);

        KeyDerivationParams fromParcel =

                KeyDerivationParams.CREATOR.createFromParcel(parcel);

        parcel.recycle();

        return fromParcel;

    }

}