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// © 2024 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// usetheaderonlytest.cpp
// created: 2024dec11 Markus W. Scherer
#include <memory>
#include <string>
// Test header-only ICU C++ APIs. Do not use other ICU C++ APIs.
// Non-default configuration:
#define U_SHOW_CPLUSPLUS_API 0
// Default configuration:
// #define U_SHOW_CPLUSPLUS_HEADER_API 1
#include "unicode/utypes.h"
#include "unicode/uset.h"
// for commented-out sample code: #include "unicode/ustring.h"
#include "unicode/utf.h"
#include "unicode/utf16.h"
#include "intltest.h"
class USetHeaderOnlyTest : public IntlTest {
public:
USetHeaderOnlyTest() = default;
void runIndexedTest(int32_t index, UBool exec, const char *&name, char *par=nullptr) override;
void TestUSetCodePointIterator();
void TestUSetRangeIterator();
void TestUSetStringIterator();
void TestUSetElementIterator();
};
extern IntlTest *createUSetHeaderOnlyTest() {
return new USetHeaderOnlyTest();
}
void USetHeaderOnlyTest::runIndexedTest(int32_t index, UBool exec, const char *&name, char * /*par*/) {
if(exec) {
logln("TestSuite USetHeaderOnlyTest: ");
}
TESTCASE_AUTO_BEGIN;
TESTCASE_AUTO(TestUSetCodePointIterator);
TESTCASE_AUTO(TestUSetRangeIterator);
TESTCASE_AUTO(TestUSetStringIterator);
TESTCASE_AUTO(TestUSetElementIterator);
TESTCASE_AUTO_END;
}
std::u16string cpString(UChar32 c) {
if (U_IS_BMP(c)) {
return {static_cast<char16_t>(c)};
} else {
return {U16_LEAD(c), U16_TRAIL(c)};
}
}
void USetHeaderOnlyTest::TestUSetCodePointIterator() {
IcuTestErrorCode errorCode(*this, "TestUSetCodePointIterator");
using U_HEADER_NESTED_NAMESPACE::USetCodePoints;
std::unique_ptr<USet, decltype(&uset_close)> uset(
uset_openPattern(u"[abcçカ🚴]", -1, errorCode), &uset_close);
std::u16string result;
for (UChar32 c : USetCodePoints(uset.get())) {
result.append(u" ").append(cpString(c));
// Commented-out sample code for pasting into the API docs.
// printf("uset.codePoint U+%04lx\n", (long)c);
}
assertEquals(WHERE, u" a b c ç カ 🚴", result);
USetCodePoints range1(uset.get());
auto range2(range1); // copy constructor
auto iter = range1.begin();
auto limit = range2.end();
// operator* with pre- and post-increment
assertEquals(WHERE, u'a', *iter);
++iter;
assertEquals(WHERE, u'b', *iter);
assertEquals(WHERE, u'c', *++iter);
auto iter2(iter); // copy constructor
assertEquals(WHERE, u'c', *iter2++);
assertEquals(WHERE, u'ç', *iter2++);
assertEquals(WHERE, u'カ', *iter2);
assertTrue(WHERE, ++iter2 != limit);
auto iter3(iter2++);
assertEquals(WHERE, U'🚴', *iter3);
assertTrue(WHERE, iter2 == limit);
}
void USetHeaderOnlyTest::TestUSetRangeIterator() {
IcuTestErrorCode errorCode(*this, "TestUSetRangeIterator");
using U_HEADER_NESTED_NAMESPACE::USetRanges;
using U_HEADER_NESTED_NAMESPACE::CodePointRange;
std::unique_ptr<USet, decltype(&uset_close)> uset(
uset_openPattern(u"[abcçカ🚴]", -1, errorCode), &uset_close);
std::u16string result;
for (auto [start, end] : USetRanges(uset.get())) {
result.append(u" ").append(cpString(start)).append(u"-").append(cpString(end));
// Commented-out sample code for pasting into the API docs.
// printf("uset.range U+%04lx..U+%04lx\n", (long)start, (long)end);
}
assertEquals(WHERE, u" a-c ç-ç カ-カ 🚴-🚴", result);
result.clear();
for (auto range : USetRanges(uset.get())) {
for (UChar32 c : range) {
result.append(u" ").append(cpString(c));
// Commented-out sample code for pasting into the API docs.
// printf("uset.range.c U+%04lx\n", (long)c);
}
result.append(u" |");
}
assertEquals(WHERE, u" a b c | ç | カ | 🚴 |", result);
USetRanges range1(uset.get());
auto range2(range1); // copy constructor
auto iter = range1.begin();
auto limit = range2.end();
// operator* with pre- and post-increment
{
auto cpRange = *iter;
assertEquals(WHERE, u'a', cpRange.rangeStart);
assertEquals(WHERE, u'c', cpRange.rangeEnd);
assertEquals(WHERE, 3, cpRange.size());
auto cpRange2(cpRange);
auto cpIter = cpRange.begin();
auto cpLimit = cpRange2.end();
assertEquals(WHERE, u'a', *cpIter++);
assertEquals(WHERE, u'b', *cpIter);
assertTrue(WHERE, cpIter != cpLimit);
CodePointRange::iterator cpIter2(u'b'); // public constructor
assertTrue(WHERE, cpIter == cpIter2);
assertEquals(WHERE, u'c', *++cpIter);
assertTrue(WHERE, cpIter != cpIter2);
assertTrue(WHERE, ++cpIter == cpLimit);
}
++iter;
auto iter2(iter); // copy constructor
assertEquals(WHERE, u'ç', (*iter2).rangeStart);
assertEquals(WHERE, u'ç', (*iter2).rangeEnd);
assertEquals(WHERE, 1, (*iter2).size());
assertEquals(WHERE, u'ç', (*iter2++).rangeStart);
assertEquals(WHERE, u'カ', (*iter2).rangeStart);
assertTrue(WHERE, ++iter2 != limit);
auto iter3(iter2++);
assertEquals(WHERE, U'🚴', (*iter3).rangeStart);
assertTrue(WHERE, iter2 == limit);
{
CodePointRange cpRange(u'h', u'k'); // public constructor
// FYI: currently no operator==
assertEquals(WHERE, u'h', cpRange.rangeStart);
assertEquals(WHERE, u'k', cpRange.rangeEnd);
assertEquals(WHERE, 4, cpRange.size());
assertEquals(WHERE, u'i', *++(cpRange.begin()));
}
}
void USetHeaderOnlyTest::TestUSetStringIterator() {
IcuTestErrorCode errorCode(*this, "TestUSetStringIterator");
using U_HEADER_NESTED_NAMESPACE::USetStrings;
std::unique_ptr<USet, decltype(&uset_close)> uset(
uset_openPattern(u"[abcçカ🚴{}{abc}{de}]", -1, errorCode), &uset_close);
std::u16string result;
for (auto s : USetStrings(uset.get())) {
result.append(u" \"").append(s).append(u"\"");
// Commented-out sample code for pasting into the API docs.
// int32_t len32 = s.length();
// char utf8[200];
// u_strToUTF8WithSub(utf8, int32_t{sizeof(utf8) - 1}, nullptr,
// s.data(), len32, 0xFFFD, nullptr, errorCode);
// printf("uset.string length %ld \"%s\"\n", long{len32}, utf8);
}
assertEquals(WHERE, uR"( "" "abc" "de")", result);
USetStrings range1(uset.get());
auto range2(range1); // copy constructor
auto iter = range1.begin();
auto limit = range2.end();
// operator* with pre- and post-increment
assertEquals(WHERE, u"", *iter);
assertEquals(WHERE, u"abc", *++iter);
auto iter2(iter); // copy constructor
assertEquals(WHERE, u"abc", *iter2++);
assertTrue(WHERE, iter2 != limit);
auto iter3(iter2++);
assertEquals(WHERE, u"de", *iter3);
assertTrue(WHERE, iter2 == limit);
}
void USetHeaderOnlyTest::TestUSetElementIterator() {
IcuTestErrorCode errorCode(*this, "TestUSetElementIterator");
using U_HEADER_NESTED_NAMESPACE::USetElements;
std::unique_ptr<USet, decltype(&uset_close)> uset(
uset_openPattern(u"[abcçカ🚴{}{abc}{de}]", -1, errorCode), &uset_close);
std::u16string result;
for (auto el : USetElements(uset.get())) {
result.append(u" \"").append(el).append(u"\"");
// Commented-out sample code for pasting into the API docs.
// int32_t len32 = el.length();
// char utf8[200];
// u_strToUTF8WithSub(utf8, int32_t{sizeof(utf8) - 1}, nullptr,
// el.data(), len32, 0xFFFD, nullptr, errorCode);
// printf("uset.element length %ld \"%s\"\n", long{len32}, utf8);
}
assertEquals(WHERE, uR"( "a" "b" "c" "ç" "カ" "🚴" "" "abc" "de")", result);
USetElements range1(uset.get());
auto range2(range1); // copy constructor
auto iter = range1.begin();
auto limit = range2.end();
// operator* with pre- and post-increment
assertEquals(WHERE, u"a", *iter);
++iter;
assertEquals(WHERE, u"b", *iter);
assertEquals(WHERE, u"c", *++iter);
auto iter2(iter); // copy constructor
assertEquals(WHERE, u"c", *iter2++);
// skip çカ🚴
++++++iter2;
assertEquals(WHERE, u"", *iter2++);
assertEquals(WHERE, u"abc", *iter2);
assertTrue(WHERE, ++iter2 != limit);
auto iter3(iter2++);
assertEquals(WHERE, u"de", *iter3);
assertTrue(WHERE, iter2 == limit);
}
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