aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/UtilsTest.cpp
blob: f1b1ea9139299dc11e9310684ab74f47d3080e4e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180

/*
 * Copyright 2011 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
#include "Test.h"
#include "SkRandom.h"
#include "SkRefCnt.h"
#include "SkTSearch.h"
#include "SkTSort.h"
#include "SkUtils.h"

class RefClass : public SkRefCnt {
public:
    RefClass(int n) : fN(n) {}
    int get() const { return fN; }

private:
    int fN;
};

static void test_refptr(skiatest::Reporter* reporter) {
    RefClass* r0 = new RefClass(0);

    SkRefPtr<RefClass> rc0;
    REPORTER_ASSERT(reporter, rc0.get() == NULL);
    REPORTER_ASSERT(reporter, !rc0);

    SkRefPtr<RefClass> rc1;
    REPORTER_ASSERT(reporter, rc0 == rc1);
    REPORTER_ASSERT(reporter, rc0.get() != r0);

    rc0 = r0;
    REPORTER_ASSERT(reporter, rc0);
    REPORTER_ASSERT(reporter, rc0 != rc1);
    REPORTER_ASSERT(reporter, rc0.get() == r0);

    rc1 = rc0;
    REPORTER_ASSERT(reporter, rc1);
    REPORTER_ASSERT(reporter, rc0 == rc1);
    REPORTER_ASSERT(reporter, rc0.get() == r0);

    rc0 = NULL;
    REPORTER_ASSERT(reporter, rc0.get() == NULL);
    REPORTER_ASSERT(reporter, !rc0);
    REPORTER_ASSERT(reporter, rc0 != rc1);

    r0->unref();
}

static void test_autounref(skiatest::Reporter* reporter) {
    RefClass obj(0);
    REPORTER_ASSERT(reporter, 1 == obj.getRefCnt());

    SkAutoTUnref<RefClass> tmp(&obj);
    REPORTER_ASSERT(reporter, &obj == tmp.get());
    REPORTER_ASSERT(reporter, 1 == obj.getRefCnt());

    REPORTER_ASSERT(reporter, &obj == tmp.detach());
    REPORTER_ASSERT(reporter, 1 == obj.getRefCnt());
    REPORTER_ASSERT(reporter, NULL == tmp.detach());
    REPORTER_ASSERT(reporter, NULL == tmp.get());

    obj.ref();
    REPORTER_ASSERT(reporter, 2 == obj.getRefCnt());
    {
        SkAutoTUnref<RefClass> tmp2(&obj);
    }
    REPORTER_ASSERT(reporter, 1 == obj.getRefCnt());
}

/////////////////////////////////////////////////////////////////////////////

#define kSEARCH_COUNT   91

static void test_search(skiatest::Reporter* reporter) {
    int         i, array[kSEARCH_COUNT];
    SkRandom    rand;

    for (i = 0; i < kSEARCH_COUNT; i++) {
        array[i] = rand.nextS();
    }

    SkTHeapSort<int>(array, kSEARCH_COUNT);
    // make sure we got sorted properly
    for (i = 1; i < kSEARCH_COUNT; i++) {
        REPORTER_ASSERT(reporter, array[i-1] <= array[i]);
    }

    // make sure we can find all of our values
    for (i = 0; i < kSEARCH_COUNT; i++) {
        int index = SkTSearch<int>(array, kSEARCH_COUNT, array[i], sizeof(int));
        REPORTER_ASSERT(reporter, index == i);
    }

    // make sure that random values are either found, or the correct
    // insertion index is returned
    for (i = 0; i < 10000; i++) {
        int value = rand.nextS();
        int index = SkTSearch<int>(array, kSEARCH_COUNT, value, sizeof(int));

        if (index >= 0) {
            REPORTER_ASSERT(reporter,
                            index < kSEARCH_COUNT && array[index] == value);
        } else {
            index = ~index;
            REPORTER_ASSERT(reporter, index <= kSEARCH_COUNT);
            if (index < kSEARCH_COUNT) {
                REPORTER_ASSERT(reporter, value < array[index]);
                if (index > 0) {
                    REPORTER_ASSERT(reporter, value > array[index - 1]);
                }
            } else {
                // we should append the new value
                REPORTER_ASSERT(reporter, value > array[kSEARCH_COUNT - 1]);
            }
        }
    }
}

static void test_utf16(skiatest::Reporter* reporter) {
    static const SkUnichar gUni[] = {
        0x10000, 0x18080, 0x20202, 0xFFFFF, 0x101234
    };

    uint16_t buf[2];

    for (size_t i = 0; i < SK_ARRAY_COUNT(gUni); i++) {
        size_t count = SkUTF16_FromUnichar(gUni[i], buf);
        REPORTER_ASSERT(reporter, count == 2);
        size_t count2 = SkUTF16_CountUnichars(buf, 2);
        REPORTER_ASSERT(reporter, count2 == 1);
        const uint16_t* ptr = buf;
        SkUnichar c = SkUTF16_NextUnichar(&ptr);
        REPORTER_ASSERT(reporter, c == gUni[i]);
        REPORTER_ASSERT(reporter, ptr - buf == 2);
    }
}

static void TestUTF(skiatest::Reporter* reporter) {
    static const struct {
        const char* fUtf8;
        SkUnichar   fUni;
    } gTest[] = {
        { "a",                  'a' },
        { "\x7f",               0x7f },
        { "\xC2\x80",           0x80 },
        { "\xC3\x83",           (3 << 6) | 3    },
        { "\xDF\xBF",           0x7ff },
        { "\xE0\xA0\x80",       0x800 },
        { "\xE0\xB0\xB8",       0xC38 },
        { "\xE3\x83\x83",       (3 << 12) | (3 << 6) | 3    },
        { "\xEF\xBF\xBF",       0xFFFF },
        { "\xF0\x90\x80\x80",   0x10000 },
        { "\xF3\x83\x83\x83",   (3 << 18) | (3 << 12) | (3 << 6) | 3    }
    };

    for (size_t i = 0; i < SK_ARRAY_COUNT(gTest); i++) {
        const char* p = gTest[i].fUtf8;
        int         n = SkUTF8_CountUnichars(p);
        SkUnichar   u0 = SkUTF8_ToUnichar(gTest[i].fUtf8);
        SkUnichar   u1 = SkUTF8_NextUnichar(&p);

        REPORTER_ASSERT(reporter, n == 1);
        REPORTER_ASSERT(reporter, u0 == u1);
        REPORTER_ASSERT(reporter, u0 == gTest[i].fUni);
        REPORTER_ASSERT(reporter,
                        p - gTest[i].fUtf8 == (int)strlen(gTest[i].fUtf8));
    }

    test_utf16(reporter);
    test_search(reporter);
    test_refptr(reporter);
    test_autounref(reporter);
}

#include "TestClassDef.h"
DEFINE_TESTCLASS("Utils", UtfTestClass, TestUTF)