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#include "strip.h"
#include <library/cpp/testing/unittest/registar.h>
#include <util/charset/wide.h>
Y_UNIT_TEST_SUITE(TStripStringTest) {
struct TStripTest {
TStringBuf Str;
TStringBuf StripLeftRes;
TStringBuf StripRightRes;
TStringBuf StripRes;
};
static constexpr TStripTest StripTests[] = {
{" 012 ", "012 ", " 012", "012"},
{" 012", "012", " 012", "012"},
{"012\t\t", "012\t\t", "012", "012"},
{"\t012\t", "012\t", "\t012", "012"},
{"012", "012", "012", "012"},
{"012\r\n", "012\r\n", "012", "012"},
{"\n012\r", "012\r", "\n012", "012"},
{"\n \t\r", "", "", ""},
{"", "", "", ""},
{"abc", "abc", "abc", "abc"},
{" abc ", "abc ", " abc", "abc"},
{"a c", "a c", "a c", "a c"},
{" long string to avoid SSO \n", "long string to avoid SSO \n", " long string to avoid SSO", "long string to avoid SSO"},
{" набор не-ascii букв ", "набор не-ascii букв ", " набор не-ascii букв", "набор не-ascii букв"},
// Russian "х" ends with \x85, whis is a space character in some encodings.
{"последней буквой идет х ", "последней буквой идет х ", "последней буквой идет х", "последней буквой идет х"},
};
Y_UNIT_TEST(TestStrip) {
for (const auto& test : StripTests) {
TString inputStr(test.Str);
TString s;
Strip(inputStr, s);
UNIT_ASSERT_VALUES_EQUAL(s, test.StripRes);
UNIT_ASSERT_VALUES_EQUAL(StripString(inputStr), test.StripRes);
UNIT_ASSERT_VALUES_EQUAL(StripStringLeft(inputStr), test.StripLeftRes);
UNIT_ASSERT_VALUES_EQUAL(StripStringRight(inputStr), test.StripRightRes);
TStringBuf inputStrBuf(test.Str);
UNIT_ASSERT_VALUES_EQUAL(StripString(inputStrBuf), test.StripRes);
UNIT_ASSERT_VALUES_EQUAL(StripStringLeft(inputStrBuf), test.StripLeftRes);
UNIT_ASSERT_VALUES_EQUAL(StripStringRight(inputStrBuf), test.StripRightRes);
};
}
Y_UNIT_TEST(TestStripInPlace) {
// On Darwin default locale is set to a value which interprets certain cyrillic utf-8 sequences as spaces.
// Which we do not use ::isspace and only strip ASCII spaces, we want to ensure that this will not change in the future.
std::setlocale(LC_ALL, "");
for (const auto& test : StripTests) {
TString str(test.Str);
Y_ASSERT(str.IsDetached() || str.empty()); // prerequisite of the test; check that we don't try to modify shared COW-string in-place by accident
const void* stringPtrPrior = str.data();
StripInPlace(str);
const void* stringPtrAfter = str.data();
UNIT_ASSERT_VALUES_EQUAL(str, test.StripRes);
if (!test.Str.empty()) {
UNIT_ASSERT_EQUAL_C(stringPtrPrior, stringPtrAfter, TString(test.Str).Quote()); // StripInPlace should reuse buffer of original string
}
}
}
Y_UNIT_TEST(TestCustomStrip) {
struct TTest {
const char* Str;
const char* Result;
};
static const TTest tests[] = {
{"//012//", "012"},
{"//012", "012"},
{"012", "012"},
{"012//", "012"},
};
for (auto test : tests) {
UNIT_ASSERT_EQUAL(
StripString(TString(test.Str), EqualsStripAdapter('/')),
test.Result);
};
}
Y_UNIT_TEST(TestCustomStripLeftRight) {
struct TTest {
const char* Str;
const char* ResultLeft;
const char* ResultRight;
};
static const TTest tests[] = {
{"//012//", "012//", "//012"},
{"//012", "012", "//012"},
{"012", "012", "012"},
{"012//", "012//", "012"},
};
for (const auto& test : tests) {
UNIT_ASSERT_EQUAL(
StripStringLeft(TString(test.Str), EqualsStripAdapter('/')),
test.ResultLeft);
UNIT_ASSERT_EQUAL(
StripStringRight(TString(test.Str), EqualsStripAdapter('/')),
test.ResultRight);
};
}
Y_UNIT_TEST(TestNullStringStrip) {
TStringBuf nullString(nullptr, nullptr);
UNIT_ASSERT_EQUAL(
StripString(nullString),
TString());
}
Y_UNIT_TEST(TestWtrokaStrip) {
UNIT_ASSERT_EQUAL(StripString(TWtringBuf(u" abc ")), u"abc");
UNIT_ASSERT_EQUAL(StripStringLeft(TWtringBuf(u" abc ")), u"abc ");
UNIT_ASSERT_EQUAL(StripStringRight(TWtringBuf(u" abc ")), u" abc");
}
Y_UNIT_TEST(TestWtrokaCustomStrip) {
UNIT_ASSERT_EQUAL(
StripString(
TWtringBuf(u"/abc/"),
EqualsStripAdapter(u'/')),
u"abc");
}
Y_UNIT_TEST(TestCollapseUtf32) {
TUtf32String s;
Collapse(UTF8ToUTF32<true>(" 123 456 "), s, IsWhitespace);
UNIT_ASSERT(s == UTF8ToUTF32<true>(" 123 456 "));
Collapse(UTF8ToUTF32<true>(" 123 456 "), s, IsWhitespace, 10);
UNIT_ASSERT(s == UTF8ToUTF32<true>(" 123 456 "));
s = UTF8ToUTF32<true>(" a b c ");
TUtf32String s2 = s;
CollapseInPlace(s2, IsWhitespace);
UNIT_ASSERT(s == s2);
#ifndef TSTRING_IS_STD_STRING
UNIT_ASSERT(s.c_str() == s2.c_str()); // Collapse() does not change the string at all
#endif
}
Y_UNIT_TEST(TestCollapseUtf16) {
TUtf16String s;
Collapse(UTF8ToWide<true>(" 123 456 "), s);
UNIT_ASSERT(s == UTF8ToWide<true>(" 123 456 "));
Collapse(UTF8ToWide<true>(" 123 456 "), s, 10);
UNIT_ASSERT(s == UTF8ToWide<true>(" 123 456 "));
s = UTF8ToWide<true>(" a b c ");
TUtf16String s2 = s;
CollapseInPlace(s2);
UNIT_ASSERT(s == s2);
#ifndef TSTRING_IS_STD_STRING
UNIT_ASSERT(s.c_str() == s2.c_str()); // Collapse() does not change the string at all
#endif
}
Y_UNIT_TEST(TestCollapse) {
TString s;
Collapse(TString(" 123 456 "), s);
UNIT_ASSERT(s == " 123 456 ");
Collapse(TString(" 123 456 "), s, 10);
UNIT_ASSERT(s == " 123 456 ");
s = TString(" a b c ");
TString s2 = s;
CollapseInPlace(s2);
UNIT_ASSERT(s == s2);
#ifndef TSTRING_IS_STD_STRING
UNIT_ASSERT(s.c_str() == s2.c_str()); // Collapse() does not change the string at all
#endif
}
Y_UNIT_TEST(TestCollapseText) {
TString abs1("Very long description string written in unknown language.");
TString abs2(abs1);
TString abs3(abs1);
CollapseText(abs1, 204);
CollapseText(abs2, 54);
CollapseText(abs3, 49);
UNIT_ASSERT_EQUAL(abs1 == "Very long description string written in unknown language.", true);
UNIT_ASSERT_EQUAL(abs2 == "Very long description string written in unknown ...", true);
UNIT_ASSERT_EQUAL(abs3 == "Very long description string written in ...", true);
}
} // Y_UNIT_TEST_SUITE(TStripStringTest)
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