From 2c4b48d4e042b763b0cad58a47b37e9ff357c5cb Mon Sep 17 00:00:00 2001
From: Anders Dalvander <anders.dalvander@gmail.com>
Date: Mon, 25 Nov 2024 15:25:36 +0100
Subject: [PATCH 1/2] add unicode_test

---
 tests/BUILD.bazel      |  9 +++++++++
 tests/CMakeLists.txt   |  1 +
 tests/unicode_test.cpp | 46 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 tests/unicode_test.cpp

diff --git a/tests/BUILD.bazel b/tests/BUILD.bazel
index 5d1512f1..ea3dad32 100644
--- a/tests/BUILD.bazel
+++ b/tests/BUILD.bazel
@@ -97,6 +97,15 @@ cc_test(
     ],
 )
 
+cc_test(
+    name = "unicode_test",
+    srcs = ["unicode_test.cpp"],
+    deps = [
+        "//:fast_float",
+        "@doctest//doctest",
+    ],
+)
+
 cc_test(
     name = "string_test",
     srcs = ["string_test.cpp"],
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 63df2e50..297fd3a9 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -68,6 +68,7 @@ endfunction(fast_float_add_cpp_test)
 
 fast_float_add_cpp_test(rcppfastfloat_test)
 fast_float_add_cpp_test(wide_char_test)
+fast_float_add_cpp_test(unicode_test)
 fast_float_add_cpp_test(example_test)
 fast_float_add_cpp_test(example_comma_test)
 fast_float_add_cpp_test(basictest)
diff --git a/tests/unicode_test.cpp b/tests/unicode_test.cpp
new file mode 100644
index 00000000..1362d492
--- /dev/null
+++ b/tests/unicode_test.cpp
@@ -0,0 +1,46 @@
+#include "fast_float/fast_float.h"
+#include <iostream>
+#include <string>
+#include <system_error>
+
+template <typename UC> bool test(std::string s, double expected) {
+  std::basic_string<UC> input(s.begin(), s.end());
+  double result;
+  auto answer =
+      fast_float::from_chars(input.data(), input.data() + input.size(), result);
+  if (answer.ec != std::errc()) {
+    std::cerr << "parsing of \"" << s << "\" should succeed\n";
+    return false;
+  }
+  if (result != expected && !(std::isnan(result) && std::isnan(expected))) {
+    std::cerr << "parsing of \"" << s << "\" succeeded, expected " << expected
+              << " got " << result << "\n";
+    return false;
+  }
+  return true;
+}
+
+int main() {
+  if (!test<char>("4.2", 4.2)) {
+    std::cout << "test failure for char" << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  if (!test<wchar_t>("4.2", 4.2)) {
+    std::cout << "test failure for wchar_t" << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  if (!test<char16_t>("4.2", 4.2)) {
+    std::cout << "test failure for char16_t" << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  if (!test<char32_t>("4.2", 4.2)) {
+    std::cout << "test failure for char32_t" << std::endl;
+    return EXIT_FAILURE;
+  }
+
+  std::cout << "all ok" << std::endl;
+  return EXIT_SUCCESS;
+}

From 396feb63534da42244c361d5dc255307805fd5e4 Mon Sep 17 00:00:00 2001
From: Anders Dalvander <anders.dalvander@gmail.com>
Date: Mon, 25 Nov 2024 15:43:51 +0100
Subject: [PATCH 2/2] add char8_t test

---
 tests/BUILD.bazel                                    | 4 ++--
 tests/CMakeLists.txt                                 | 2 +-
 tests/{unicode_test.cpp => supported_chars_test.cpp} | 7 +++++++
 3 files changed, 10 insertions(+), 3 deletions(-)
 rename tests/{unicode_test.cpp => supported_chars_test.cpp} (89%)

diff --git a/tests/BUILD.bazel b/tests/BUILD.bazel
index ea3dad32..57d8c342 100644
--- a/tests/BUILD.bazel
+++ b/tests/BUILD.bazel
@@ -98,8 +98,8 @@ cc_test(
 )
 
 cc_test(
-    name = "unicode_test",
-    srcs = ["unicode_test.cpp"],
+    name = "supported_chars_test",
+    srcs = ["supported_chars_test.cpp"],
     deps = [
         "//:fast_float",
         "@doctest//doctest",
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 297fd3a9..c4e43b21 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -68,7 +68,7 @@ endfunction(fast_float_add_cpp_test)
 
 fast_float_add_cpp_test(rcppfastfloat_test)
 fast_float_add_cpp_test(wide_char_test)
-fast_float_add_cpp_test(unicode_test)
+fast_float_add_cpp_test(supported_chars_test)
 fast_float_add_cpp_test(example_test)
 fast_float_add_cpp_test(example_comma_test)
 fast_float_add_cpp_test(basictest)
diff --git a/tests/unicode_test.cpp b/tests/supported_chars_test.cpp
similarity index 89%
rename from tests/unicode_test.cpp
rename to tests/supported_chars_test.cpp
index 1362d492..3660f818 100644
--- a/tests/unicode_test.cpp
+++ b/tests/supported_chars_test.cpp
@@ -31,6 +31,13 @@ int main() {
     return EXIT_FAILURE;
   }
 
+#ifdef __cpp_char8_t
+  if (!test<char8_t>("4.2", 4.2)) {
+    std::cout << "test failure for char8_t" << std::endl;
+    return EXIT_FAILURE;
+  }
+#endif
+
   if (!test<char16_t>("4.2", 4.2)) {
     std::cout << "test failure for char16_t" << std::endl;
     return EXIT_FAILURE;