add string conversion functions + some tests

1 files changed, 81 insertions, 0 deletions

diff --git a/test/convert.cpp b/test/convert.cpp
new file mode 100644
index 0000000..abd7173
--- /dev/null
+++ b/test/convert.cpp
@@ -0,0 +1,81 @@
+// Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "winapi-utf8" project.
+// For details, see https://github.com/egor-tensin/winapi-utf8.
+// Distributed under the MIT License.
+
+#include <winapi/utf8.hpp>
+
+#include <boost/format.hpp>
+#include <boost/test/data/monomorphic.hpp>
+#include <boost/test/data/test_case.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <ostream>
+#include <string>
+#include <vector>
+
+namespace std {
+
+ostream& operator<<(ostream& os, unsigned char c) {
+    return os << boost::format("%|1$02x|") % static_cast<unsigned int>(c);
+}
+
+ostream& operator<<(ostream& os, const vector<unsigned char>& cs) {
+    for (auto c : cs) {
+        os << c;
+    }
+    return os;
+}
+
+}
+
+namespace {
+
+std::vector<unsigned char> from(std::initializer_list<unsigned char> xs) {
+    return {xs};
+}
+
+template <typename CharT>
+std::vector<unsigned char> from(const std::basic_string<CharT>& s) {
+    const auto buf = reinterpret_cast<const unsigned char*>(s.c_str());
+    const auto size = s.size() * sizeof(CharT);
+    return {buf, buf + size};
+}
+
+std::vector<std::vector<unsigned char>> utf16 = {
+    // Hello
+    from({0x48, 0x00, 0x65, 0x00, 0x6c, 0x00, 0x6c, 0x00, 0x6f, 0x00}),
+    // Привет
+    from({0x1f, 0x04, 0x40, 0x04, 0x38, 0x04, 0x32, 0x04, 0x35, 0x04, 0x42, 0x04}),
+};
+
+std::vector<std::vector<unsigned char>> utf8 = {
+    // Hello
+    from({0x48, 0x65, 0x6c, 0x6c, 0x6f}),
+    // Привет
+    from({0xd0, 0x9f, 0xd1, 0x80, 0xd0, 0xb8, 0xd0, 0xb2, 0xd0, 0xb5, 0xd1, 0x82}),
+};
+
+}
+
+BOOST_TEST_SPECIALIZED_COLLECTION_COMPARE(std::vector<unsigned char>);
+
+BOOST_AUTO_TEST_SUITE(convert_tests)
+
+BOOST_DATA_TEST_CASE(test_narrow,
+                     boost::unit_test::data::make(utf16) ^ utf8,
+                     input,
+                     expected) {
+    auto actual = from(winapi::narrow(input));
+    BOOST_TEST(actual == expected, "Expected: " << expected << ", actual: " << actual);
+}
+
+BOOST_DATA_TEST_CASE(test_widen,
+                     boost::unit_test::data::make(utf8) ^ utf16,
+                     input,
+                     expected) {
+    auto actual = from(winapi::widen(input));
+    BOOST_TEST(actual == expected, "Expected: " << expected << ", actual: " << actual);
+}
+
+BOOST_AUTO_TEST_SUITE_END()