1 // Copyright 2022 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 // 15 //////////////////////////////////////////////////////////////////////////////// 16 17 package com.google.crypto.tink.internal; 18 19 import static com.google.common.truth.Truth.assertThat; 20 import static org.junit.Assert.assertThrows; 21 22 import com.google.crypto.tink.InsecureSecretKeyAccess; 23 import com.google.crypto.tink.Key; 24 import com.google.crypto.tink.Parameters; 25 import com.google.crypto.tink.SecretKeyAccess; 26 import com.google.crypto.tink.util.Bytes; 27 import com.google.errorprone.annotations.Immutable; 28 import java.security.GeneralSecurityException; 29 import javax.annotation.Nullable; 30 import org.junit.Test; 31 import org.junit.runner.RunWith; 32 import org.junit.runners.JUnit4; 33 34 /** Tests for {@link KeyParser}. */ 35 @RunWith(JUnit4.class) 36 public final class KeyParserTest { 37 38 @Immutable 39 private static class ExampleKey extends Key { 40 @Override equalsKey(Key k)41 public boolean equalsKey(Key k) { 42 return k == this; 43 } 44 45 @Override 46 @Nullable getIdRequirementOrNull()47 public Integer getIdRequirementOrNull() { 48 return null; 49 } 50 51 @Override getParameters()52 public Parameters getParameters() { 53 throw new UnsupportedOperationException("Not needed in test"); 54 } 55 } 56 57 @Immutable 58 private static class ExampleSerialization implements Serialization { 59 @Override getObjectIdentifier()60 public Bytes getObjectIdentifier() { 61 return Bytes.copyFrom(new byte[0]); 62 } 63 } 64 parse( ExampleSerialization serialization, @Nullable SecretKeyAccess access)65 private static ExampleKey parse( 66 ExampleSerialization serialization, @Nullable SecretKeyAccess access) 67 throws GeneralSecurityException { 68 SecretKeyAccess.requireAccess(access); 69 return new ExampleKey(); 70 } 71 72 @Test createParser_works()73 public void createParser_works() throws Exception { 74 Object unused = 75 KeyParser.create( 76 KeyParserTest::parse, Bytes.copyFrom(new byte[0]), ExampleSerialization.class); 77 } 78 79 @Test createParser_parseKey_works()80 public void createParser_parseKey_works() throws Exception { 81 KeyParser<ExampleSerialization> parser = 82 KeyParser.create( 83 KeyParserTest::parse, Bytes.copyFrom(new byte[0]), ExampleSerialization.class); 84 assertThat(parser.parseKey(new ExampleSerialization(), InsecureSecretKeyAccess.get())) 85 .isNotNull(); 86 assertThrows( 87 GeneralSecurityException.class, 88 () -> parser.parseKey(new ExampleSerialization(), /* access = */ null)); 89 } 90 91 @Test createParser_classes_work()92 public void createParser_classes_work() throws Exception { 93 KeyParser<ExampleSerialization> parser = 94 KeyParser.create( 95 KeyParserTest::parse, Bytes.copyFrom(new byte[] {1, 2, 3}), ExampleSerialization.class); 96 assertThat(parser.getObjectIdentifier()).isEqualTo(Bytes.copyFrom(new byte[] {1, 2, 3})); 97 assertThat(parser.getSerializationClass()).isEqualTo(ExampleSerialization.class); 98 } 99 } 100