Function TestScanCopyUnescapedString

test/unittest/simdtest.cpp:107–158

template <unsigned parseFlags, typename StreamType>
void TestScanCopyUnescapedString() {
    char buffer[1024 + 5 + 32];
    char backup[1024 + 5 + 32];

    // Test "ABCDABCD...\\"
    for (size_t offset = 0; offset < 32; offset++) {
        for (size_t step = 0; step < 1024; step++) {
            char* json = buffer + offset;
            char *p = json;
            *p++ = '\"';
            for (size_t i = 0; i < step; i++)
                *p++ = "ABCD"[i % 4];
            *p++ = '\\';
            *p++ = '\\';
            *p++ = '\"';
            *p++ = '\0';
            strcpy(backup, json); // insitu parsing will overwrite buffer, so need to backup first

            StreamType s(json);
            Reader reader;
            ScanCopyUnescapedStringHandler h;
            reader.Parse<parseFlags>(s, h);
            EXPECT_TRUE(memcmp(h.buffer, backup + 1, step) == 0);
            EXPECT_EQ('\\', h.buffer[step]);    // escaped
            EXPECT_EQ('\0', h.buffer[step + 1]);
        }
    }

    // Test "\\ABCDABCD..."
    for (size_t offset = 0; offset < 32; offset++) {
        for (size_t step = 0; step < 1024; step++) {
            char* json = buffer + offset;
            char *p = json;
            *p++ = '\"';
            *p++ = '\\';
            *p++ = '\\';
            for (size_t i = 0; i < step; i++)
                *p++ = "ABCD"[i % 4];
            *p++ = '\"';
            *p++ = '\0';
            strcpy(backup, json); // insitu parsing will overwrite buffer, so need to backup first

            StreamType s(json);
            Reader reader;
            ScanCopyUnescapedStringHandler h;
            reader.Parse<parseFlags>(s, h);
            EXPECT_TRUE(memcmp(h.buffer + 1, backup + 3, step) == 0);
            EXPECT_EQ('\\', h.buffer[0]);    // escaped
            EXPECT_EQ('\0', h.buffer[step + 1]);
        }
    }
}

TEST(SIMD, SIMD_SUFFIX(ScanCopyUnescapedString)) {
    TestScanCopyUnescapedString<kParseDefaultFlags, StringStream>();