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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  package org.apache.juneau.http.header;
18  
19  import static org.apache.juneau.TestUtils.*;
20  import static org.apache.juneau.http.HttpHeaders.*;
21  
22  import java.io.*;
23  import java.util.function.*;
24  
25  import org.apache.juneau.*;
26  import org.apache.juneau.annotation.*;
27  import org.apache.juneau.common.utils.*;
28  import org.apache.juneau.http.annotation.*;
29  import org.apache.juneau.rest.annotation.*;
30  import org.apache.juneau.rest.client.*;
31  import org.apache.juneau.rest.mock.*;
32  import org.junit.jupiter.api.*;
33  
34  class ContentLanguage_Test extends TestBase {
35  
36  	private static final String HEADER = "Content-Language";
37  	private static final String VALUE = "foo";
38  	private static final String[] PARSED = { "foo" };
39  
40  	@Rest
41  	public static class A {
42  		@RestOp
43  		public StringReader get(@Header(name=HEADER) @Schema(cf="multi") String[] h) {
44  			return reader(h == null ? "null" : Utils.join(h, ','));
45  		}
46  	}
47  
48  	//------------------------------------------------------------------------------------------------------------------
49  	// Method tests
50  	//------------------------------------------------------------------------------------------------------------------
51  
52  	@Test void a01_basic() throws Exception {
53  		var c = client().build();
54  
55  		// Normal usage.
56  		c.get().header(contentLanguage(VALUE)).run().assertContent(VALUE);
57  		c.get().header(contentLanguage(VALUE)).run().assertContent(VALUE);
58  		c.get().header(contentLanguage(PARSED)).run().assertContent(VALUE);
59  		c.get().header(contentLanguage(()->PARSED)).run().assertContent(VALUE);
60  
61  		// Invalid usage.
62  		c.get().header(contentLanguage((String)null)).run().assertContent().isEmpty();
63  		c.get().header(contentLanguage((Supplier<String[]>)null)).run().assertContent().isEmpty();
64  		c.get().header(contentLanguage(()->null)).run().assertContent().isEmpty();
65  	}
66  
67  	//------------------------------------------------------------------------------------------------------------------
68  	// Helper methods.
69  	//------------------------------------------------------------------------------------------------------------------
70  
71  	private static RestClient.Builder client() {
72  		return MockRestClient.create(A.class);
73  	}
74  }