test_ios_pos_types.cpp revision 5abe6dfaae971d3c0d1c8e3349b0d2b2ae83cc97 
1/* -*- c++ -*- */
2/*
3 * Copyright (C) 2010 The Android Open Source Project
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *  * Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 *  * Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in
13 *    the documentation and/or other materials provided with the
14 *    distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
19 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
20 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
23 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include "../include/ios_pos_types.h"
31#ifndef ANDROID_ASTL_IOS_POS_TYPES__
32#error "Wrong header included!!"
33#endif
34#include "common.h"
35
36#include <limits>
37
38namespace android {
39using std::fpos;
40using std::streamoff;
41
42bool testConstructor() {
43    {
44        fpos p;
45
46        EXPECT_TRUE(streamoff(p) == 0);
47    }
48    {
49        fpos p(1000);
50
51        EXPECT_TRUE(streamoff(p) == 1000);
52    }
53    return true;
54}
55
56bool testComparator() {
57    {
58        fpos p1(100);
59        fpos p2(100);
60
61        EXPECT_TRUE(p1 == p2);
62        EXPECT_FALSE(p1 != p2);
63    }
64    {
65        fpos p1(100);
66        fpos p2(200);
67
68        EXPECT_TRUE(p1 != p2);
69        EXPECT_FALSE(p1 == p2);
70    }
71    return true;
72}
73
74bool testIncrDecr() {
75    fpos p(100);
76
77    p += 0;
78    EXPECT_TRUE(streamoff(p) == 100);
79
80    p -= 0;
81    EXPECT_TRUE(streamoff(p) == 100);
82
83    p += 100;
84    EXPECT_TRUE(streamoff(p) == 200);
85
86    // overflow -> nop
87    p += std::numeric_limits<long long>::max();
88    EXPECT_TRUE(streamoff(p) == 200);
89
90    p -= 1000;
91    EXPECT_TRUE(streamoff(p) == -800);
92
93    // overflow -> nop
94    p -= std::numeric_limits<long long>::min();
95    EXPECT_TRUE(streamoff(p) == -800);
96
97    return true;
98}
99
100
101}  // namespace android
102
103int main(int argc, char **argv){
104    FAIL_UNLESS(testConstructor);
105    FAIL_UNLESS(testComparator);
106    FAIL_UNLESS(testIncrDecr);
107    return kPassed;
108}
109