1 /*
2 * Copyright (C) 2016 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 // Unit tests for AAudio Handle Tracker
18
19 #include <stdlib.h>
20 #include <math.h>
21
22 #include <gtest/gtest.h>
23
24 #include <aaudio/AAudio.h>
25 #include "utility/HandleTracker.h"
26
27 // Test adding one address.
TEST(test_handle_tracker,aaudio_handle_tracker)28 TEST(test_handle_tracker, aaudio_handle_tracker) {
29 const int MAX_HANDLES = 4;
30 HandleTracker tracker(MAX_HANDLES);
31 handle_tracker_type_t type = 3; // arbitrary generic type
32 int data; // something that has an address we can use
33 handle_tracker_address_t found;
34
35 // repeat the test several times to see if it breaks
36 const int SEVERAL = 5; // arbitrary
37 for (int i = 0; i < SEVERAL; i++) {
38 // should fail to find a bogus handle
39 found = tracker.get(type, 0); // bad handle
40 EXPECT_EQ(nullptr, found);
41
42 // create a valid handle and use it to lookup the object again
43 aaudio_handle_t dataHandle = tracker.put(type, &data);
44 ASSERT_TRUE(dataHandle > 0);
45 found = tracker.get(type, dataHandle);
46 EXPECT_EQ(&data, found);
47 found = tracker.get(type, 0); // bad handle
48 EXPECT_EQ(nullptr, found);
49
50 // wrong type
51 found = tracker.get(type+1, dataHandle);
52 EXPECT_EQ(nullptr, found);
53
54 // remove from storage
55 found = tracker.remove(type, dataHandle);
56 EXPECT_EQ(&data, found);
57 // should fail the second time
58 found = tracker.remove(type, dataHandle);
59 EXPECT_EQ(nullptr, found);
60 }
61 }
62
63 // Test filling the tracker.
TEST(test_handle_tracker,aaudio_full_up)64 TEST(test_handle_tracker, aaudio_full_up) {
65 const int MAX_HANDLES = 5;
66 HandleTracker tracker(MAX_HANDLES);
67 handle_tracker_type_t type = 4; // arbitrary generic type
68 int data[MAX_HANDLES];
69 aaudio_handle_t handles[MAX_HANDLES];
70 handle_tracker_address_t found;
71
72 // repeat the test several times to see if it breaks
73 const int SEVERAL = 5; // arbitrary
74 for (int i = 0; i < SEVERAL; i++) {
75 for (int i = 0; i < MAX_HANDLES; i++) {
76 // add a handle
77 handles[i] = tracker.put(type, &data[i]);
78 ASSERT_TRUE(handles[i] > 0);
79 found = tracker.get(type, handles[i]);
80 EXPECT_EQ(&data[i], found);
81 }
82
83 // Now that it is full, try to add one more.
84 aaudio_handle_t handle = tracker.put(type, &data[0]);
85 EXPECT_TRUE(handle < 0);
86
87 for (int i = 0; i < MAX_HANDLES; i++) {
88 // look up each handle
89 found = tracker.get(type, handles[i]);
90 EXPECT_EQ(&data[i], found);
91 }
92
93 // remove one from storage
94 found = tracker.remove(type, handles[2]);
95 EXPECT_EQ(&data[2], found);
96 // now try to look up the same handle and fail
97 found = tracker.get(type, handles[2]);
98 EXPECT_EQ(nullptr, found);
99
100 // add that same one back
101 handle = tracker.put(type, &data[2]);
102 ASSERT_TRUE(handle > 0);
103 found = tracker.get(type, handle);
104 EXPECT_EQ(&data[2], found);
105 // now use a stale handle again with a valid index and fail
106 found = tracker.get(type, handles[2]);
107 EXPECT_EQ(nullptr, found);
108
109 // remove them all
110 handles[2] = handle;
111 for (int i = 0; i < MAX_HANDLES; i++) {
112 // look up each handle
113 found = tracker.remove(type, handles[i]);
114 EXPECT_EQ(&data[i], found);
115 }
116 }
117 }
118