aboutsummaryrefslogtreecommitdiffhomepage
path: root/tests/DataRefTest.cpp
blob: 391124e840c97fb7fb6048c7fcaf6c165b617d0d (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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
/*
 * 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 "SkData.h"
#include "SkDataTable.h"
#include "SkOSFile.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
#include "SkStream.h"
#include "Test.h"

static void test_is_equal(skiatest::Reporter* reporter,
                          const SkDataTable* a, const SkDataTable* b) {
    REPORTER_ASSERT(reporter, a->count() == b->count());
    for (int i = 0; i < a->count(); ++i) {
        size_t sizea, sizeb;
        const void* mema = a->at(i, &sizea);
        const void* memb = b->at(i, &sizeb);
        REPORTER_ASSERT(reporter, sizea == sizeb);
        REPORTER_ASSERT(reporter, !memcmp(mema, memb, sizea));
    }
}

static void test_datatable_is_empty(skiatest::Reporter* reporter, SkDataTable* table) {
    REPORTER_ASSERT(reporter, table->isEmpty());
    REPORTER_ASSERT(reporter, 0 == table->count());
}

static void test_emptytable(skiatest::Reporter* reporter) {
    sk_sp<SkDataTable> table0(SkDataTable::MakeEmpty());
    sk_sp<SkDataTable> table1(SkDataTable::MakeCopyArrays(nullptr, nullptr, 0));
    sk_sp<SkDataTable> table2(SkDataTable::MakeCopyArray(nullptr, 0, 0));
    sk_sp<SkDataTable> table3(SkDataTable::MakeArrayProc(nullptr, 0, 0, nullptr, nullptr));

    test_datatable_is_empty(reporter, table0.get());
    test_datatable_is_empty(reporter, table1.get());
    test_datatable_is_empty(reporter, table2.get());
    test_datatable_is_empty(reporter, table3.get());

    test_is_equal(reporter, table0.get(), table1.get());
    test_is_equal(reporter, table0.get(), table2.get());
    test_is_equal(reporter, table0.get(), table3.get());
}

static void test_simpletable(skiatest::Reporter* reporter) {
    const int idata[] = { 1, 4, 9, 16, 25, 63 };
    int icount = SK_ARRAY_COUNT(idata);
    sk_sp<SkDataTable> itable(SkDataTable::MakeCopyArray(idata, sizeof(idata[0]), icount));
    REPORTER_ASSERT(reporter, itable->count() == icount);
    for (int i = 0; i < icount; ++i) {
        size_t size;
        REPORTER_ASSERT(reporter, sizeof(int) == itable->atSize(i));
        REPORTER_ASSERT(reporter, *itable->atT<int>(i, &size) == idata[i]);
        REPORTER_ASSERT(reporter, sizeof(int) == size);
    }
}

static void test_vartable(skiatest::Reporter* reporter) {
    const char* str[] = {
        "", "a", "be", "see", "deigh", "ef", "ggggggggggggggggggggggggggg"
    };
    int count = SK_ARRAY_COUNT(str);
    size_t sizes[SK_ARRAY_COUNT(str)];
    for (int i = 0; i < count; ++i) {
        sizes[i] = strlen(str[i]) + 1;
    }

    sk_sp<SkDataTable> table(SkDataTable::MakeCopyArrays((const void*const*)str, sizes, count));

    REPORTER_ASSERT(reporter, table->count() == count);
    for (int i = 0; i < count; ++i) {
        size_t size;
        REPORTER_ASSERT(reporter, table->atSize(i) == sizes[i]);
        REPORTER_ASSERT(reporter, !strcmp(table->atT<const char>(i, &size),
                                          str[i]));
        REPORTER_ASSERT(reporter, size == sizes[i]);

        const char* s = table->atStr(i);
        REPORTER_ASSERT(reporter, strlen(s) == strlen(str[i]));
    }
}

static void test_tablebuilder(skiatest::Reporter* reporter) {
    const char* str[] = {
        "", "a", "be", "see", "deigh", "ef", "ggggggggggggggggggggggggggg"
    };
    int count = SK_ARRAY_COUNT(str);

    SkDataTableBuilder builder(16);

    for (int i = 0; i < count; ++i) {
        builder.append(str[i], strlen(str[i]) + 1);
    }
    sk_sp<SkDataTable> table(builder.detachDataTable());

    REPORTER_ASSERT(reporter, table->count() == count);
    for (int i = 0; i < count; ++i) {
        size_t size;
        REPORTER_ASSERT(reporter, table->atSize(i) == strlen(str[i]) + 1);
        REPORTER_ASSERT(reporter, !strcmp(table->atT<const char>(i, &size),
                                          str[i]));
        REPORTER_ASSERT(reporter, size == strlen(str[i]) + 1);

        const char* s = table->atStr(i);
        REPORTER_ASSERT(reporter, strlen(s) == strlen(str[i]));
    }
}

static void test_globaltable(skiatest::Reporter* reporter) {
    static const int gData[] = {
        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
    };
    int count = SK_ARRAY_COUNT(gData);

    sk_sp<SkDataTable> table(
        SkDataTable::MakeArrayProc(gData, sizeof(gData[0]), count, nullptr, nullptr));

    REPORTER_ASSERT(reporter, table->count() == count);
    for (int i = 0; i < count; ++i) {
        size_t size;
        REPORTER_ASSERT(reporter, table->atSize(i) == sizeof(int));
        REPORTER_ASSERT(reporter, *table->atT<const char>(i, &size) == i);
        REPORTER_ASSERT(reporter, sizeof(int) == size);
    }
}

DEF_TEST(DataTable, reporter) {
    test_emptytable(reporter);
    test_simpletable(reporter);
    test_vartable(reporter);
    test_tablebuilder(reporter);
    test_globaltable(reporter);
}

static void* gGlobal;

static void delete_int_proc(const void* ptr, void* context) {
    int* data = (int*)ptr;
    SkASSERT(context == gGlobal);
    delete[] data;
}

static void assert_len(skiatest::Reporter* reporter, const sk_sp<SkData>& ref, size_t len) {
    REPORTER_ASSERT(reporter, ref->size() == len);
}

static void assert_data(skiatest::Reporter* reporter, const sk_sp<SkData>& ref,
                        const void* data, size_t len) {
    REPORTER_ASSERT(reporter, ref->size() == len);
    REPORTER_ASSERT(reporter, !memcmp(ref->data(), data, len));
}

static void test_cstring(skiatest::Reporter* reporter) {
    const char str[] = "Hello world";
    size_t     len = strlen(str);

    sk_sp<SkData> r0(SkData::MakeWithCopy(str, len + 1));
    sk_sp<SkData> r1(SkData::MakeWithCString(str));

    REPORTER_ASSERT(reporter, r0->equals(r1.get()));

    sk_sp<SkData> r2(SkData::MakeWithCString(nullptr));
    REPORTER_ASSERT(reporter, 1 == r2->size());
    REPORTER_ASSERT(reporter, 0 == *r2->bytes());
}

static void test_files(skiatest::Reporter* reporter) {
    SkString tmpDir = skiatest::GetTmpDir();
    if (tmpDir.isEmpty()) {
        return;
    }

    SkString path = SkOSPath::Join(tmpDir.c_str(), "data_test");

    const char s[] = "abcdefghijklmnopqrstuvwxyz";
    {
        SkFILEWStream writer(path.c_str());
        if (!writer.isValid()) {
            ERRORF(reporter, "Failed to create tmp file %s\n", path.c_str());
            return;
        }
        writer.write(s, 26);
    }

    FILE* file = sk_fopen(path.c_str(), kRead_SkFILE_Flag);
    sk_sp<SkData> r1(SkData::MakeFromFILE(file));
    REPORTER_ASSERT(reporter, r1.get() != nullptr);
    REPORTER_ASSERT(reporter, r1->size() == 26);
    REPORTER_ASSERT(reporter, strncmp(static_cast<const char*>(r1->data()), s, 26) == 0);

    int fd = sk_fileno(file);
    sk_sp<SkData> r2(SkData::MakeFromFD(fd));
    REPORTER_ASSERT(reporter, r2.get() != nullptr);
    REPORTER_ASSERT(reporter, r2->size() == 26);
    REPORTER_ASSERT(reporter, strncmp(static_cast<const char*>(r2->data()), s, 26) == 0);
}

DEF_TEST(Data, reporter) {
    const char* str = "We the people, in order to form a more perfect union.";
    const int N = 10;

    sk_sp<SkData> r0(SkData::MakeEmpty());
    sk_sp<SkData> r1(SkData::MakeWithCopy(str, strlen(str)));
    sk_sp<SkData> r2(SkData::MakeWithProc(new int[N], N*sizeof(int), delete_int_proc, gGlobal));
    sk_sp<SkData> r3(SkData::MakeSubset(r1.get(), 7, 6));

    assert_len(reporter, r0, 0);
    assert_len(reporter, r1, strlen(str));
    assert_len(reporter, r2, N * sizeof(int));
    assert_len(reporter, r3, 6);

    assert_data(reporter, r1, str, strlen(str));
    assert_data(reporter, r3, "people", 6);

    sk_sp<SkData> tmp(SkData::MakeSubset(r1.get(), strlen(str), 10));
    assert_len(reporter, tmp, 0);
    tmp = SkData::MakeSubset(r1.get(), 0, 0);
    assert_len(reporter, tmp, 0);

    test_cstring(reporter);
    test_files(reporter);
}

///////////////////////////////////////////////////////////////////////////////////////////////////
#include "SkRWBuffer.h"

const char gABC[] = "abcdefghijklmnopqrstuvwxyz";

static void check_abcs(skiatest::Reporter* reporter, const char buffer[], size_t size) {
    REPORTER_ASSERT(reporter, size % 26 == 0);
    for (size_t offset = 0; offset < size; offset += 26) {
        REPORTER_ASSERT(reporter, !memcmp(&buffer[offset], gABC, 26));
    }
}

// stream should contain an integral number of copies of gABC.
static void check_alphabet_stream(skiatest::Reporter* reporter, SkStream* stream) {
    REPORTER_ASSERT(reporter, stream->hasLength());
    size_t size = stream->getLength();
    REPORTER_ASSERT(reporter, size % 26 == 0);

    SkAutoTMalloc<char> storage(size);
    char* array = storage.get();
    size_t bytesRead = stream->read(array, size);
    REPORTER_ASSERT(reporter, bytesRead == size);
    check_abcs(reporter, array, size);

    // try checking backwards
    for (size_t offset = size; offset > 0; offset -= 26) {
        REPORTER_ASSERT(reporter, stream->seek(offset - 26));
        REPORTER_ASSERT(reporter, stream->getPosition() == offset - 26);
        REPORTER_ASSERT(reporter, stream->read(array, 26) == 26);
        check_abcs(reporter, array, 26);
        REPORTER_ASSERT(reporter, stream->getPosition() == offset);
    }
}

// reader should contains an integral number of copies of gABC.
static void check_alphabet_buffer(skiatest::Reporter* reporter, const SkROBuffer* reader) {
    size_t size = reader->size();
    REPORTER_ASSERT(reporter, size % 26 == 0);

    SkAutoTMalloc<char> storage(size);
    SkROBuffer::Iter iter(reader);
    size_t offset = 0;
    do {
        SkASSERT(offset + iter.size() <= size);
        memcpy(storage.get() + offset, iter.data(), iter.size());
        offset += iter.size();
    } while (iter.next());
    REPORTER_ASSERT(reporter, offset == size);
    check_abcs(reporter, storage.get(), size);
}

#include "SkTaskGroup.h"

DEF_TEST(RWBuffer, reporter) {
    // Knowing that the default capacity is 4096, choose N large enough so we force it to use
    // multiple buffers internally.
    const int N = 1000;
    SkROBuffer* readers[N];
    SkStream* streams[N];

    {
        SkRWBuffer buffer;
        for (int i = 0; i < N; ++i) {
            buffer.append(gABC, 26);
            readers[i] = buffer.newRBufferSnapshot();
            streams[i] = buffer.newStreamSnapshot();
        }
        REPORTER_ASSERT(reporter, N*26 == buffer.size());
    }

    // Verify that although the SkRWBuffer's destructor has run, the readers are still valid.
    for (int i = 0; i < N; ++i) {
        REPORTER_ASSERT(reporter, (i + 1) * 26U == readers[i]->size());
        check_alphabet_buffer(reporter, readers[i]);
        check_alphabet_stream(reporter, streams[i]);
        readers[i]->unref();
        delete streams[i];
    }
}

DEF_TEST(RWBuffer_threaded, reporter) {
    // Knowing that the default capacity is 4096, choose N large enough so we force it to use
    // multiple buffers internally.
    const int N = 1000;
    SkTaskGroup tasks;
    SkRWBuffer buffer;
    for (int i = 0; i < N; ++i) {
        buffer.append(gABC, 26);
        sk_sp<SkROBuffer> reader = sk_sp<SkROBuffer>(buffer.newRBufferSnapshot());
        SkStream* stream = buffer.newStreamSnapshot();
        REPORTER_ASSERT(reporter, reader->size() == buffer.size());
        REPORTER_ASSERT(reporter, stream->getLength() == buffer.size());

        // reader's copy constructor will ref the SkROBuffer, which will be unreffed
        // when the task ends.
        // Ownership of stream is passed to the task, which will delete it.
        tasks.add([reporter, i, reader, stream] {
            REPORTER_ASSERT(reporter, (i + 1) * 26U == reader->size());
            REPORTER_ASSERT(reporter, stream->getLength() == reader->size());
            check_alphabet_buffer(reporter, reader.get());
            check_alphabet_stream(reporter, stream);
            REPORTER_ASSERT(reporter, stream->rewind());
            delete stream;
        });
    }
    REPORTER_ASSERT(reporter, N*26 == buffer.size());
    tasks.wait();
}

// Tests that it is safe to call SkROBuffer::Iter::size() when exhausted.
DEF_TEST(RWBuffer_size, r) {
    SkRWBuffer buffer;
    buffer.append(gABC, 26);

    SkAutoTUnref<SkROBuffer> roBuffer(buffer.newRBufferSnapshot());
    SkROBuffer::Iter iter(roBuffer);
    REPORTER_ASSERT(r, iter.data());
    REPORTER_ASSERT(r, iter.size() == 26);

    // There is only one block in this buffer.
    REPORTER_ASSERT(r, !iter.next());
    REPORTER_ASSERT(r, 0 == iter.size());
}

// Tests that operations (including the destructor) are safe on an SkRWBuffer
// without any data appended.
DEF_TEST(RWBuffer_noAppend, r) {
    SkRWBuffer buffer;
    REPORTER_ASSERT(r, 0 == buffer.size());

    sk_sp<SkROBuffer> roBuffer = sk_sp<SkROBuffer>(buffer.newRBufferSnapshot());
    REPORTER_ASSERT(r, roBuffer);
    if (roBuffer) {
        REPORTER_ASSERT(r, roBuffer->size() == 0);
        SkROBuffer::Iter iter(roBuffer.get());
        REPORTER_ASSERT(r, iter.size() == 0);
        REPORTER_ASSERT(r, !iter.data());
        REPORTER_ASSERT(r, !iter.next());
    }

    SkAutoTDelete<SkStream> stream(buffer.newStreamSnapshot());
    REPORTER_ASSERT(r, stream);
    if (stream) {
        REPORTER_ASSERT(r, stream->hasLength());
        REPORTER_ASSERT(r, stream->getLength() == 0);
        REPORTER_ASSERT(r, stream->skip(10) == 0);
    }
}