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// © 2023 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// Fuzzer for ICU Calendar.
#include <cstring>
#include "fuzzer_utils.h"
#include "unicode/listformatter.h"
#include "unicode/locid.h"
void TestFormat(icu::ListFormatter* listFormat, const icu::UnicodeString* items) {
for (size_t i = 0; i <= 4; i++) {
icu::UnicodeString appendTo;
UErrorCode status = U_ZERO_ERROR;
listFormat->format(items, i, appendTo, status);
status = U_ZERO_ERROR;
icu::FormattedList formatted = listFormat->formatStringsToValue(items, i, status);
}
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
uint16_t rnd;
UListFormatterType type;
UListFormatterWidth width;
if (size < sizeof(rnd) + sizeof(type) + sizeof(width)) return 0;
icu::StringPiece fuzzData(reinterpret_cast<const char *>(data), size);
std::memcpy(&rnd, fuzzData.data(), sizeof(rnd));
icu::Locale locale = GetRandomLocale(rnd);
fuzzData.remove_prefix(sizeof(rnd));
std::memcpy(&type, fuzzData.data(), sizeof(type));
fuzzData.remove_prefix(sizeof(type));
std::memcpy(&width, fuzzData.data(), sizeof(width));
fuzzData.remove_prefix(sizeof(width));
size_t len = fuzzData.size() / sizeof(char16_t);
icu::UnicodeString text(false, reinterpret_cast<const char16_t*>(fuzzData.data()), len);
const icu::UnicodeString items[] = { text, text, text, text };
UErrorCode status = U_ZERO_ERROR;
std::unique_ptr<icu::ListFormatter> listFormat(
icu::ListFormatter::createInstance(locale, status));
if (U_SUCCESS(status)) {
TestFormat(listFormat.get(), items);
}
status = U_ZERO_ERROR;
listFormat.reset(
icu::ListFormatter::createInstance(locale, type, width, status));
if (U_SUCCESS(status)) {
TestFormat(listFormat.get(), items);
}
status = U_ZERO_ERROR;
type = static_cast<UListFormatterType>(
static_cast<int>(type) % (static_cast<int>(ULISTFMT_TYPE_UNITS) + 1));
width = static_cast<UListFormatterWidth>(
static_cast<int>(width) % (static_cast<int>(ULISTFMT_WIDTH_NARROW) + 1));
listFormat.reset(
icu::ListFormatter::createInstance(locale, type, width, status));
if (U_SUCCESS(status)) {
TestFormat(listFormat.get(), items);
}
return EXIT_SUCCESS;
}
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