1/*
2 * Copyright 2017 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
17package org.conscrypt;
18
19import static org.junit.Assert.assertEquals;
20import static org.mockito.Matchers.same;
21import static org.mockito.Mockito.when;
22
23import java.nio.charset.Charset;
24import javax.net.ssl.SSLEngine;
25import org.junit.Before;
26import org.junit.Test;
27import org.mockito.Matchers;
28import org.mockito.Mock;
29import org.mockito.MockitoAnnotations;
30
31public class ApplicationProtocolSelectorAdapterTest {
32    private static Charset US_ASCII = Charset.forName("US-ASCII");
33    private static final String[] PROTOCOLS = new String[] {"a", "b", "c"};
34    private static final byte[] PROTOCOL_BYTES = SSLUtils.encodeProtocols(PROTOCOLS);
35
36    @Mock private ApplicationProtocolSelector selector;
37
38    @Mock private SSLEngine engine;
39
40    private ApplicationProtocolSelectorAdapter adapter;
41
42    @Before
43    public void setup() {
44        MockitoAnnotations.initMocks(this);
45
46        adapter = new ApplicationProtocolSelectorAdapter(engine, selector);
47    }
48
49    @Test
50    public void nullProtocolsShouldNotSelect() {
51        mockSelection("a");
52        assertEquals(-1, select(null));
53    }
54
55    @Test
56    public void emptyProtocolsShouldNotSelect() {
57        mockSelection("a");
58        assertEquals(-1, select(EmptyArray.BYTE));
59    }
60
61    @Test
62    public void selectCorrectProtocol() {
63        for (String protocol : PROTOCOLS) {
64            mockSelection(protocol);
65            assertEquals(protocol, getProtocolAt(select(PROTOCOL_BYTES)));
66        }
67    }
68
69    @Test
70    public void invalidProtocolShouldNotSelect() {
71        mockSelection("d");
72        assertEquals(-1, select(PROTOCOL_BYTES));
73    }
74
75    private int select(byte[] protocols) {
76        return adapter.selectApplicationProtocol(protocols);
77    }
78
79    private void mockSelection(String returnValue) {
80        when(selector.selectApplicationProtocol(same(engine), Matchers.anyListOf(String.class)))
81                .thenReturn(returnValue);
82    }
83
84    private String getProtocolAt(int index) {
85        int len = PROTOCOL_BYTES[index];
86        return new String(PROTOCOL_BYTES, index + 1, len, US_ASCII);
87    }
88}
89