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1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.processor.compat.changeid;
18 
19 import static org.hamcrest.core.StringStartsWith.startsWith;
20 import static org.junit.Assert.assertThat;
21 
22 import org.junit.Test;
23 
24 import java.io.ByteArrayOutputStream;
25 import java.io.OutputStream;
26 
27 public class XmlWriterTest {
28 
29     private static final String HEADER =
30             "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>";
31 
32     private OutputStream mOutputStream = new ByteArrayOutputStream();
33 
34     @Test
testNoChanges()35     public void testNoChanges() throws Exception {
36         XmlWriter writer = new XmlWriter();
37         writer.write(mOutputStream);
38 
39         String expected = HEADER + "<config/>";
40 
41         assertThat(mOutputStream.toString(), startsWith(expected));
42     }
43 
44     @Test
testOneChange()45     public void testOneChange() throws Exception {
46         XmlWriter writer = new XmlWriter();
47         Change c = new Change.Builder()
48                 .id(123456789L)
49                 .name("change-name")
50                 .build();
51 
52         writer.addChange(c);
53         writer.write(mOutputStream);
54 
55         String expected = HEADER + "<config>"
56                 + "<compat-change id=\"123456789\" name=\"change-name\"/>"
57                 + "</config>";
58 
59         assertThat(mOutputStream.toString(), startsWith(expected));
60     }
61 
62     @Test
testSomeChanges()63     public void testSomeChanges() throws Exception {
64         XmlWriter writer = new XmlWriter();
65         Change c = new Change.Builder()
66                 .id(111L)
67                 .name("change-name1")
68                 .description("my nice change")
69                 .build();
70         Change disabled = new Change.Builder()
71                 .id(222L)
72                 .name("change-name2")
73                 .disabled()
74                 .build();
75         Change sdkRestricted = new Change.Builder()
76                 .id(333L)
77                 .name("change-name3")
78                 .enabledAfter(28)
79                 .build();
80         Change both = new Change.Builder()
81                 .id(444L)
82                 .name("change-name4")
83                 .disabled()
84                 .enabledAfter(29)
85                 .build();
86         Change loggingOnly = new Change.Builder()
87                 .id(555L)
88                 .name("change-name5")
89                 .loggingOnly()
90                 .build();
91         Change overridable = new Change.Builder()
92                 .id(666L)
93                 .name("change-name6")
94                 .disabled()
95                 .overridable()
96                 .build();
97 
98         writer.addChange(c);
99         writer.addChange(disabled);
100         writer.addChange(sdkRestricted);
101         writer.addChange(both);
102         writer.addChange(loggingOnly);
103         writer.addChange(overridable);
104         writer.write(mOutputStream);
105 
106         String expected = HEADER + "<config>"
107                 + "<compat-change description=\"my nice change\" id=\"111\" name=\"change-name1\"/>"
108                 + "<compat-change disabled=\"true\" id=\"222\" name=\"change-name2\"/>"
109                 + "<compat-change enableAfterTargetSdk=\"28\" id=\"333\" "
110                 + "name=\"change-name3\"/>"
111                 + "<compat-change disabled=\"true\" enableAfterTargetSdk=\"29\" id=\"444\" "
112                 + "name=\"change-name4\"/>"
113                 + "<compat-change id=\"555\" loggingOnly=\"true\" name=\"change-name5\"/>"
114                 + "<compat-change disabled=\"true\" id=\"666\" name=\"change-name6\" "
115                 + "overridable=\"true\"/>"
116                 + "</config>";
117 
118         assertThat(mOutputStream.toString(), startsWith(expected));
119     }
120 }
121