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- // Copyright 2018 Google LLC.
- // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
- #include "src/utils/SkUTF.h"
- #include "tests/Test.h"
- DEF_TEST(SkUTF_UTF16, reporter) {
- // Test non-basic-multilingual-plane unicode.
- static const SkUnichar gUni[] = {
- 0x10000, 0x18080, 0x20202, 0xFFFFF, 0x101234
- };
- for (SkUnichar uni : gUni) {
- uint16_t buf[2];
- size_t count = SkUTF::ToUTF16(uni, buf);
- REPORTER_ASSERT(reporter, count == 2);
- size_t count2 = SkUTF::CountUTF16(buf, sizeof(buf));
- REPORTER_ASSERT(reporter, count2 == 1);
- const uint16_t* ptr = buf;
- SkUnichar c = SkUTF::NextUTF16(&ptr, buf + SK_ARRAY_COUNT(buf));
- REPORTER_ASSERT(reporter, c == uni);
- REPORTER_ASSERT(reporter, ptr - buf == 2);
- }
- }
- DEF_TEST(SkUTF_UTF8, 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 (auto test : gTest) {
- const char* p = test.fUtf8;
- const char* stop = p + strlen(p);
- int n = SkUTF::CountUTF8(p, strlen(p));
- SkUnichar u1 = SkUTF::NextUTF8(&p, stop);
- REPORTER_ASSERT(reporter, n == 1);
- REPORTER_ASSERT(reporter, u1 == test.fUni);
- REPORTER_ASSERT(reporter, p - test.fUtf8 == (int)strlen(test.fUtf8));
- }
- }
- #define ASCII_BYTE "X"
- #define CONTINUATION_BYTE "\xA1"
- #define LEADING_TWO_BYTE "\xC2"
- #define LEADING_THREE_BYTE "\xE1"
- #define LEADING_FOUR_BYTE "\xF0"
- #define INVALID_BYTE "\xFC"
- DEF_TEST(SkUTF_CountUTF8, r) {
- static const struct {
- int expectedCount;
- const char* utf8String;
- } testCases[] = {
- { 0, "" },
- { 1, ASCII_BYTE },
- { 2, ASCII_BYTE ASCII_BYTE },
- { 1, LEADING_TWO_BYTE CONTINUATION_BYTE },
- { 2, ASCII_BYTE LEADING_TWO_BYTE CONTINUATION_BYTE },
- { 3, ASCII_BYTE ASCII_BYTE LEADING_TWO_BYTE CONTINUATION_BYTE },
- { 1, LEADING_THREE_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { 2, ASCII_BYTE LEADING_THREE_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { 3, ASCII_BYTE ASCII_BYTE LEADING_THREE_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { 1, LEADING_FOUR_BYTE CONTINUATION_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { 2, ASCII_BYTE LEADING_FOUR_BYTE CONTINUATION_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { 3, ASCII_BYTE ASCII_BYTE LEADING_FOUR_BYTE CONTINUATION_BYTE CONTINUATION_BYTE
- CONTINUATION_BYTE },
- { -1, INVALID_BYTE },
- { -1, INVALID_BYTE CONTINUATION_BYTE },
- { -1, INVALID_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { -1, INVALID_BYTE CONTINUATION_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { -1, LEADING_TWO_BYTE },
- { -1, CONTINUATION_BYTE },
- { -1, CONTINUATION_BYTE CONTINUATION_BYTE },
- { -1, LEADING_THREE_BYTE CONTINUATION_BYTE },
- { -1, CONTINUATION_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { -1, LEADING_FOUR_BYTE CONTINUATION_BYTE },
- { -1, CONTINUATION_BYTE CONTINUATION_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- };
- for (auto testCase : testCases) {
- const char* str = testCase.utf8String;
- REPORTER_ASSERT(r, testCase.expectedCount == SkUTF::CountUTF8(str, strlen(str)));
- }
- }
- DEF_TEST(SkUTF_NextUTF8_ToUTF8, r) {
- struct {
- SkUnichar expected;
- const char* utf8String;
- } testCases[] = {
- { -1, INVALID_BYTE },
- { -1, "" },
- { 0x0058, ASCII_BYTE },
- { 0x00A1, LEADING_TWO_BYTE CONTINUATION_BYTE },
- { 0x1861, LEADING_THREE_BYTE CONTINUATION_BYTE CONTINUATION_BYTE },
- { 0x010330, LEADING_FOUR_BYTE "\x90\x8C\xB0" },
- };
- for (auto testCase : testCases) {
- const char* str = testCase.utf8String;
- SkUnichar uni = SkUTF::NextUTF8(&str, str + strlen(str));
- REPORTER_ASSERT(r, str == testCase.utf8String + strlen(testCase.utf8String));
- REPORTER_ASSERT(r, uni == testCase.expected);
- char buff[5] = {0, 0, 0, 0, 0};
- size_t len = SkUTF::ToUTF8(uni, buff);
- if (buff[len] != 0) {
- ERRORF(r, "unexpected write");
- continue;
- }
- if (uni == -1) {
- REPORTER_ASSERT(r, len == 0);
- continue;
- }
- if (len == 0) {
- ERRORF(r, "unexpected failure.");
- continue;
- }
- if (len > 4) {
- ERRORF(r, "wrote too much");
- continue;
- }
- str = testCase.utf8String;
- REPORTER_ASSERT(r, len == strlen(buff));
- REPORTER_ASSERT(r, len == strlen(str));
- REPORTER_ASSERT(r, 0 == strcmp(str, buff));
- }
- }
- #undef ASCII_BYTE
- #undef CONTINUATION_BYTE
- #undef LEADING_TWO_BYTE
- #undef LEADING_THREE_BYTE
- #undef LEADING_FOUR_BYTE
- #undef INVALID_BYTE
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