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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *  http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17
    18  package org.apache.any23.http;
    19
    20  import org.apache.any23.mime.MIMEType;
    21  import org.junit.Assert;
    22  import org.junit.Test;
    23
    24  import java.util.ArrayList;
    25  import java.util.Arrays;
    26  import java.util.Collection;
    27  import java.util.Collections;
    28
    29  /**
    30   * Reference test for {@link AcceptHeaderBuilder}
    31   *
    32   */
    33  public class AcceptHeaderBuilderTest {
    34
    35      @Test
    36      public void testEmpty() {
    37          Assert.assertNull(buildHeader(Collections.<String> emptyList()));
    38      }
    39
    40      @Test
    41      public void testSingleHeaderSpecific() {
    42          Assert.assertEquals("text/html", buildHeader(Arrays.asList("text/html")));
    43      }
    44
    45      @Test
    46      public void testSingleHeaderSpecificWithQ() {
    47          Assert.assertEquals("text/html;q=0.5", buildHeader(Arrays.asList("text/html;q=0.5")));
    48      }
    49
    50      @Test
    51      public void testSuppressQIfEquals1() {
    52          Assert.assertEquals("text/html", buildHeader(Arrays.asList("text/html;q=1")));
    53      }
    54
    55      @Test
    56      public void testSingleHeaderSubtypeWildcard() {
    57          Assert.assertEquals("text/*;q=0.5", buildHeader(Arrays.asList("text/*;q=0.5")));
    58      }
    59
    60      @Test
    61      public void testSingleHeaderTypeWildcard() {
    62          Assert.assertEquals("*/*;q=0.5", buildHeader(Arrays.asList("*/*;q=0.5")));
    63      }
    64
    65      @Test
    66      public void testMultipleIndependentHeaders() {
    67          Assert.assertEquals("image/jpeg;q=0.2, text/html, text/plain;q=0.5",
    68                  buildHeader(Arrays.asList("image/jpeg;q=0.2", "text/html;q=1.0", "text/plain;q=0.5")));
    69      }
    70
    71      @Test
    72      public void testHighestSpecificValueIsChosen() {
    73          Assert.assertEquals("image/jpeg", buildHeader(Arrays.asList("image/jpeg;q=0.2", "image/jpeg")));
    74          Assert.assertEquals("image/jpeg", buildHeader(Arrays.asList("image/jpeg", "image/jpeg;q=0.2")));
    75      }
    76
    77      @Test
    78      public void testHighestSubtypeWildcardIsChosen() {
    79          Assert.assertEquals("image/*", buildHeader(Arrays.asList("image/*;q=0.2", "image/*")));
    80          Assert.assertEquals("image/*", buildHeader(Arrays.asList("image/*", "image/*;q=0.2")));
    81      }
    82
    83      @Test
    84      public void testHighestTypeWildcardIsChosen() {
    85          Assert.assertEquals("*/*", buildHeader(Arrays.asList("*/*;q=0.2", "*/*")));
    86          Assert.assertEquals("*/*", buildHeader(Arrays.asList("*/*", "*/*;q=0.2")));
    87      }
    88
    89      @Test
    90      public void testTypeWildcardSuppressesLowerValues() {
    91          Assert.assertEquals("*/*;q=0.5", buildHeader(Arrays.asList("*/*;q=0.5", "image/*;q=0.2")));
    92          Assert.assertEquals("*/*;q=0.5", buildHeader(Arrays.asList("*/*;q=0.5", "image/jpeg;q=0.2")));
    93      }
    94
    95      @Test
    96      public void testSubtypeWildcardSuppressesLowerValues() {
    97          Assert.assertEquals("image/*;q=0.5", buildHeader(Arrays.asList("image/*;q=0.5", "image/jpeg;q=0.2")));
    98      }
    99
    100     private String buildHeader(Collection<String> mimeTypes) {
    101         Collection<MIMEType> parsedTypes = new ArrayList<MIMEType>();
    102         for (String s : mimeTypes) {
    103             parsedTypes.add(MIMEType.parse(s));
    104         }
    105         return new AcceptHeaderBuilder(parsedTypes).getAcceptHeader();
    106     }
    107 }