From 6ac189e71eec22607bb09fbd49ac2939229d4134 Mon Sep 17 00:00:00 2001
From: keqingmoe <me@keqing.moe>
Date: Wed, 19 Mar 2025 15:08:38 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=20test/string.cpp?=
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---
 test/string.cpp | 171 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 test/string.cpp

diff --git a/test/string.cpp b/test/string.cpp
new file mode 100644
index 0000000..eca5b33
--- /dev/null
+++ b/test/string.cpp
@@ -0,0 +1,171 @@
+import std;
+import kqm.str;
+
+using namespace std::literals;
+
+
+#define TEST(x)                                                                                                        \
+    do {                                                                                                               \
+        std::println("Test: {}", #x);                                                                                  \
+        x();                                                                                                           \
+        std::println();                                                                                                \
+    } while (0)
+
+auto fmt(char32_t ch)
+{
+    auto buf = std::array<char, 5>{};
+    auto len = kqm::utf::utf32_to_utf8(ch, buf.data());
+    return std::string{buf.data(), len};
+}
+
+auto test_default_ctor()
+{
+    auto s = kqm::string{};
+    std::println("default ctor: {:?}", s);
+}
+
+auto test_std_sv_ctor()
+{
+    auto s = kqm::string{"sv"sv};
+    std::println("from std::sv: {:?}", s);
+}
+
+auto test_range_ctor()
+{
+    auto chs = std::vector{U'r', U'a', U'n', U'g', U'e'};
+    auto s   = kqm::string{chs.begin(), chs.end()};
+    std::println("from range: {:?}", s);
+}
+
+auto test_sv_ctor()
+{
+    auto s = kqm::string{"test"sv};
+    std::println("from kqm::sv: {:?}", s);
+}
+
+auto test_move_ctor()
+{
+    auto s  = kqm::string{"short string"};
+    auto s2 = std::move(s);
+    std::println("move: {:?} -> {:?}", s, s2);
+
+    s = kqm::string{"large capacity"};
+    s.reserve(32);
+    s2 = std::move(s);
+    std::println("move: {:?} -> {:?}", s, s2);
+}
+
+auto test_front()
+{
+    auto s  = kqm::string{"string"};
+    auto ch = s.front();
+    std::println("{:?}.front() == U's' is {}", s, ch == U's');
+}
+
+auto test_back()
+{
+    auto s  = kqm::string{"string"};
+    auto ch = s.back();
+    std::println("{:?}.back() == U'g' is {}", s, ch == U'g');
+}
+
+auto test_range()
+{
+    auto s = kqm::string{"string"};
+    std::print("{} ->", s);
+    for (auto ch : s) {
+        std::print(" {:?}", fmt(ch));
+    }
+    std::println();
+}
+
+auto test_reverse_range()
+{
+    auto s = kqm::string{"string"};
+    std::print("{} | reverse ->", s);
+    for (auto ch : s | std::views::reverse) {
+        std::print(" {:?}", fmt(ch));
+    }
+    std::println();
+}
+
+auto test_clear()
+{
+    auto s       = kqm::string{"string"};
+    auto old_siz = s.size_bytes();
+    s.clear();
+    std::println("size_bytes(): {} -> {}", old_siz, s.size_bytes());
+}
+
+auto test_append()
+{
+    auto s = kqm::string{"string"};
+    std::println("   {:?}", s);
+    s.append(U';');
+    std::println("-> {:?}", s);
+    s.append(" append"sv);
+    std::println("-> {:?}", s);
+    s.append(kqm::string_view{" a"});
+    std::println("-> {:?}", s);
+    s.append(kqm::string{" new"});
+    std::println("-> {:?}", s);
+    s += " section"sv;
+    std::println("-> {:?}", s);
+}
+
+auto test_replace()
+{
+    auto s     = kqm::string{};
+    auto first = kqm::string::iterator{};
+    auto last  = kqm::string::iterator{};
+    auto init  = [&] {
+        s     = kqm::string{"AAABBBCCC"};
+        first = std::next(s.begin(), 3);
+        last  = std::next(first, 3);
+    };
+    init();
+    std::println("   {:?}", s);
+    s.replace(first, last, U'D');
+    std::println("-> {:?}", s);
+    init();
+    s.replace(first, last, "DD"sv);
+    std::println("-> {:?}", s);
+    init();
+    s.replace(first, last, kqm::string_view{"DDDD"});
+    std::println("-> {:?}", s);
+}
+
+auto test_assign()
+{
+    auto s = kqm::string{"string"};
+    std::println("   {:?}", s);
+    s.assign(U's');
+    std::println("-> {:?}", s);
+    s.assign("std::sv"sv);
+    std::println("-> {:?}", s);
+    s.assign(kqm::string_view{"sv"});
+    std::println("-> {:?}", s);
+    s.assign(kqm::string{"str"});
+    std::println("-> {:?}", s);
+    s += "eq"sv;
+    std::println("-> {:?}", s);
+}
+
+auto main() -> int
+{
+    TEST(test_default_ctor);
+    TEST(test_std_sv_ctor);
+    TEST(test_range_ctor);
+    TEST(test_sv_ctor);
+    TEST(test_move_ctor);
+
+    TEST(test_front);
+    TEST(test_back);
+    TEST(test_range);
+    TEST(test_reverse_range);
+
+    TEST(test_clear);
+    TEST(test_append);
+    TEST(test_replace);
+    TEST(test_assign);
+}