forked from mpusz/mp-units
feat: basic_fixed_string implementation and testing improved
This commit is contained in:
Mateusz Pusz
@@ -27,36 +27,152 @@ using namespace mp_units;
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namespace {
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constexpr std::array array = {'a', 'b', 'c'};
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auto from_string = [] {
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std::string txt = "abc";
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return fixed_string<3>(std::from_range, txt);
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};
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auto from_string_iter = [] {
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std::string txt = "abc";
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return fixed_string<3>(txt.begin(), txt.end());
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};
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constexpr fixed_string<0> txt0;
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constexpr basic_fixed_string txt1('a');
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constexpr basic_fixed_string txt2('a', 'b', 'c');
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constexpr basic_fixed_string txt3 = "abc";
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constexpr fixed_string<3> txt4(array.begin(), array.end());
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constexpr basic_fixed_string txt5(std::from_range, array);
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constexpr basic_fixed_string txt6(from_string());
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constexpr basic_fixed_string txt7(from_string_iter());
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constexpr fixed_string<3> txt8(txt2.begin(), txt2.end());
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constexpr fixed_string<3> txt9(txt2.rbegin(), txt2.rend());
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static_assert(txt0.size() == 0);
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static_assert(txt1.size() == 1);
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static_assert(txt2.size() == 3);
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static_assert(txt3.size() == 3);
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static_assert(txt4.size() == 3);
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static_assert(txt5.size() == 3);
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static_assert(txt6.size() == 3);
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static_assert(txt7.size() == 3);
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static_assert(txt8.size() == 3);
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static_assert(txt9.size() == 3);
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static_assert(txt0.length() == 0);
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static_assert(txt1.length() == 1);
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static_assert(txt2.length() == 3);
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static_assert(txt0.max_size() == 0);
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static_assert(txt1.max_size() == 1);
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static_assert(txt2.max_size() == 3);
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static_assert(txt0.empty() == true);
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static_assert(txt1.empty() == false);
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static_assert(txt2.empty() == false);
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static_assert(txt3.empty() == false);
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static_assert(txt4.empty() == false);
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static_assert(txt5.empty() == false);
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static_assert(txt6.empty() == false);
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static_assert(txt7.empty() == false);
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static_assert(txt8.empty() == false);
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static_assert(txt9.empty() == false);
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static_assert(txt1[0] == 'a');
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static_assert(txt2[0] == 'a');
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static_assert(txt2[1] == 'b');
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static_assert(txt2[2] == 'c');
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static_assert(txt9[0] == 'c');
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static_assert(txt9[1] == 'b');
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static_assert(txt9[2] == 'a');
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static_assert(txt1.at(0) == 'a');
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static_assert(txt2.at(0) == 'a');
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static_assert(txt2.at(1) == 'b');
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static_assert(txt2.at(2) == 'c');
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static_assert(txt9.at(0) == 'c');
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static_assert(txt9.at(1) == 'b');
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static_assert(txt9.at(2) == 'a');
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static_assert(txt1.front() == 'a');
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static_assert(txt1.back() == 'a');
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static_assert(txt2.front() == 'a');
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static_assert(txt2.back() == 'c');
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static_assert(txt5.front() == 'a');
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static_assert(txt5.back() == 'c');
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static_assert(txt6.front() == 'a');
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static_assert(txt6.back() == 'c');
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static_assert(txt7.front() == 'a');
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static_assert(txt7.back() == 'c');
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static_assert(txt8.front() == 'a');
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static_assert(txt8.back() == 'c');
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static_assert(txt9.front() == 'c');
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static_assert(txt9.back() == 'a');
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static_assert(std::string_view(txt0.data()) == "");
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static_assert(std::string_view(txt0.c_str()) == "");
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static_assert(std::string_view(txt1.data()) == "a");
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static_assert(std::string_view(txt1.c_str()) == "a");
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static_assert(std::string_view(txt2.data()) == "abc");
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static_assert(std::string_view(txt2.c_str()) == "abc");
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static_assert(txt0 == "");
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static_assert("a" == txt1);
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static_assert(txt2 == "abc");
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static_assert(txt3 == "abc");
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static_assert(txt4 == "abc");
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static_assert(txt5 == "abc");
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static_assert(txt6 == "abc");
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static_assert(txt7 == "abc");
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static_assert(txt8 == "abc");
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static_assert(txt9 == "cba");
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static_assert(txt1 == basic_fixed_string("a"));
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static_assert(txt1 != basic_fixed_string("b"));
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static_assert(txt1 != basic_fixed_string("aa"));
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static_assert(txt1 < basic_fixed_string("b"));
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static_assert(txt1 < basic_fixed_string("aa"));
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static_assert(txt1 + basic_fixed_string('b') == basic_fixed_string("ab"));
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static_assert(basic_fixed_string('b') + txt1 == basic_fixed_string("ba"));
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static_assert(txt1 + basic_fixed_string("bc") == basic_fixed_string("abc"));
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static_assert(basic_fixed_string("bc") + txt1 == basic_fixed_string("bca"));
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static_assert(txt1 == "a");
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static_assert(txt1 != "b");
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static_assert(txt1 != "aa");
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static_assert(txt1 < "b");
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static_assert(txt1 < "aa");
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static_assert(txt1 + basic_fixed_string('b') == "ab");
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static_assert(basic_fixed_string('b') + txt1 == "ba");
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static_assert(txt1 + basic_fixed_string("bc") == "abc");
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static_assert(basic_fixed_string("bc") + txt1 == "bca");
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static_assert(txt1 + 'b' == "ab");
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static_assert('b' + txt1 == "ba");
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static_assert(txt1 + "bc" == "abc");
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static_assert("bc" + txt1 == "bca");
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constexpr basic_fixed_string txt2("abc");
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static_assert(txt2.size() == 3);
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static_assert(txt2[0] == 'a');
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static_assert(txt2[1] == 'b');
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static_assert(txt2[2] == 'c');
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static_assert(txt2 == basic_fixed_string("abc"));
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static_assert(txt2 != basic_fixed_string("cba"));
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static_assert(txt2 != basic_fixed_string("abcd"));
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static_assert(txt2 < basic_fixed_string("b"));
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static_assert(txt2 > basic_fixed_string("aa"));
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static_assert(txt2 + basic_fixed_string('d') == basic_fixed_string("abcd"));
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static_assert(basic_fixed_string('d') + txt2 == basic_fixed_string("dabc"));
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static_assert(txt2 + basic_fixed_string("def") == basic_fixed_string("abcdef"));
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static_assert(basic_fixed_string("def") + txt2 == basic_fixed_string("defabc"));
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static_assert(txt2 == "abc");
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static_assert(txt2 != "cba");
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static_assert(txt2 != "abcd");
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static_assert(txt2 < "b");
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static_assert(txt2 > "aa");
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#ifndef MP_UNITS_COMP_GCC
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static_assert(std::string_view(basic_fixed_string("abcd")).find('c') == 2);
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#endif
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static_assert(txt2 + basic_fixed_string('d') == "abcd");
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static_assert(basic_fixed_string('d') + txt2 == "dabc");
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static_assert(txt2 + basic_fixed_string("def") == "abcdef");
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static_assert(basic_fixed_string("def") + txt2 == "defabc");
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static_assert(txt2 + 'd' == "abcd");
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static_assert('d' + txt2 == "dabc");
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static_assert(txt2 + "def" == "abcdef");
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static_assert("def" + txt2 == "defabc");
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static_assert(std::string_view(txt2) == "abc");
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static_assert(txt2.view() == "abc");
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static_assert(std::string_view(txt2).find('b') == 1);
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static_assert(txt2.view().find('b') == 1);
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} // namespace
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