/*
    * 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.
   */
  package org.eclipse.aether.util;
  
  import org.junit.Test;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.is;
  import static org.junit.Assert.fail;
  
  public class StringDigestUtilTest {
      @Test
      public void sha1Simple() {
          assertThat(StringDigestUtil.sha1(null), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(StringDigestUtil.sha1(""), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(StringDigestUtil.sha1("something"), is("1af17e73721dbe0c40011b82ed4bb1a7dbe3ce29"));
          assertThat(StringDigestUtil.sha1().update(null).digest(), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(StringDigestUtil.sha1().update("").digest(), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(
                  StringDigestUtil.sha1().update("something").digest(), is("1af17e73721dbe0c40011b82ed4bb1a7dbe3ce29"));
          assertThat(
                  StringDigestUtil.sha1().update("some").update("thing").digest(),
                  is("1af17e73721dbe0c40011b82ed4bb1a7dbe3ce29"));
      }
  
      @Test
      public void sha1Manual() {
          assertThat(new StringDigestUtil("SHA-1").digest(), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(new StringDigestUtil("SHA-1").update("").digest(), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(
                  new StringDigestUtil("SHA-1").update("something").digest(),
                  is("1af17e73721dbe0c40011b82ed4bb1a7dbe3ce29"));
          assertThat(new StringDigestUtil("SHA-1").update(null).digest(), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(new StringDigestUtil("SHA-1").update("").digest(), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
          assertThat(
                  new StringDigestUtil("SHA-1").update("something").digest(),
                  is("1af17e73721dbe0c40011b82ed4bb1a7dbe3ce29"));
          assertThat(
                  new StringDigestUtil("SHA-1").update("some").update("thing").digest(),
                  is("1af17e73721dbe0c40011b82ed4bb1a7dbe3ce29"));
      }
  
      @Test
      public void md5Manual() {
          assertThat(new StringDigestUtil("MD5").digest(), is("d41d8cd98f00b204e9800998ecf8427e"));
          assertThat(new StringDigestUtil("MD5").update("").digest(), is("d41d8cd98f00b204e9800998ecf8427e"));
          assertThat(new StringDigestUtil("MD5").update("something").digest(), is("437b930db84b8079c2dd804a71936b5f"));
          assertThat(new StringDigestUtil("MD5").update(null).digest(), is("d41d8cd98f00b204e9800998ecf8427e"));
          assertThat(new StringDigestUtil("MD5").update("").digest(), is("d41d8cd98f00b204e9800998ecf8427e"));
          assertThat(new StringDigestUtil("MD5").update("something").digest(), is("437b930db84b8079c2dd804a71936b5f"));
          assertThat(
                  new StringDigestUtil("MD5").update("some").update("thing").digest(),
                  is("437b930db84b8079c2dd804a71936b5f"));
      }
  
      @Test
      public void unsupportedAlg() {
          try {
              new StringDigestUtil("FOO-BAR");
              fail("StringDigestUtil should throw");
          } catch (IllegalStateException e) {
              // good
          }
      }
  }