java/src/test/java/com/google/crypto/tink/signature/SigUtilTest.java

// Copyright 2018 Google Inc.
//
// 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 com.google.crypto.tink.signature;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import com.google.crypto.tink.proto.HashType;
import com.google.crypto.tink.subtle.Enums;
import java.security.GeneralSecurityException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Unit tests for SigUtil. */
@RunWith(JUnit4.class)
public final class SigUtilTest {
  @Test
  public void testToHashType() throws Exception {
    assertEquals(Enums.HashType.SHA256, SigUtil.toHashType(HashType.SHA256));
    assertEquals(Enums.HashType.SHA384, SigUtil.toHashType(HashType.SHA384));
    assertEquals(Enums.HashType.SHA512, SigUtil.toHashType(HashType.SHA512));
    try {
      SigUtil.toHashType(HashType.UNKNOWN_HASH);
      fail("Invalid hash, should have thrown exception");
    } catch (GeneralSecurityException expected) {
    }
  }
}