// Copyright 2018 The Bazel Authors. All rights reserved. // // 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.devtools.build.lib.vfs; import static com.google.common.truth.Truth.assertThat; import com.google.common.hash.Hashing; import com.google.devtools.build.lib.vfs.DigestHashFunction.DigestFunctionConverter; import org.junit.Test; import org.junit.runner.RunWith; import org.junit.runners.JUnit4; /** * Tests for DigestHashFunction, notably that the static instances can be compared with reference * equality. */ @RunWith(JUnit4.class) public class DigestHashFunctionTest { private final DigestFunctionConverter converter = new DigestFunctionConverter(); @Test public void convertReturnsTheSameValueAsTheConstant() throws Exception { assertThat(converter.convert("sha-256")).isSameAs(DigestHashFunction.SHA256); assertThat(converter.convert("SHA-256")).isSameAs(DigestHashFunction.SHA256); assertThat(converter.convert("SHA256")).isSameAs(DigestHashFunction.SHA256); assertThat(converter.convert("sha256")).isSameAs(DigestHashFunction.SHA256); assertThat(converter.convert("SHA-1")).isSameAs(DigestHashFunction.SHA1); assertThat(converter.convert("sha-1")).isSameAs(DigestHashFunction.SHA1); assertThat(converter.convert("SHA1")).isSameAs(DigestHashFunction.SHA1); assertThat(converter.convert("sha1")).isSameAs(DigestHashFunction.SHA1); assertThat(converter.convert("MD5")).isSameAs(DigestHashFunction.MD5); assertThat(converter.convert("md5")).isSameAs(DigestHashFunction.MD5); } @Test public void lateRegistrationGetsPickedUpByConverter() throws Exception { DigestHashFunction.register(Hashing.goodFastHash(32), "goodFastHash32"); assertThat(converter.convert("goodFastHash32")).isSameAs(converter.convert("GOODFASTHASH32")); } @Test public void lateRegistrationWithAlternativeNamesGetsPickedUpByConverter() throws Exception { DigestHashFunction.register( Hashing.goodFastHash(64), "goodFastHash64", "goodFastHash-64", "good-fast-hash-64"); assertThat(converter.convert("goodFastHash64")).isSameAs(converter.convert("GOODFASTHASH64")); assertThat(converter.convert("goodFastHash64")).isSameAs(converter.convert("goodFastHash-64")); assertThat(converter.convert("goodFastHash64")) .isSameAs(converter.convert("good-fast-hash-64")); assertThat(converter.convert("goodFastHash64")) .isSameAs(converter.convert("GOOD-fast-HASH-64")); } }