add attachments compatibility test

Author: daantimmer

.vscode/settings.json

@@ -1,6 +1,7 @@
 {
   "cmake.useCMakePresets": "always",
   "cucumberautocomplete.steps": [
+    "compatibility/*/*.cpp",
     "cucumber_cpp/example/steps/*.cpp",
     "cucumber_cpp/acceptance_test/steps/*.cpp"
   ],

compatibility/attachments/attachments.cpp

@@ -0,0 +1,51 @@
+#include "cucumber_cpp/CucumberCpp.hpp"
+#include "library/engine/ExecutionContext.hpp"
+#include <algorithm>
+#include <cstdint>
+#include <numeric>
+#include <sstream>
+#include <string>
+
+namespace
+{
+    const std::filesystem::path currentCompileDir = std::filesystem::path{ std::source_location::current().file_name() }.parent_path();
+}
+
+WHEN(R"(the string {string} is attached as {string})", (const std::string& text, const std::string& mediaType))
+{
+    Attach(text, mediaType);
+}
+
+WHEN(R"(the string {string} is logged)", (const std::string& text))
+{
+    Log(text);
+}
+
+WHEN(R"(text with ANSI escapes is logged)")
+{
+    Log("This displays a \x1b[31mr\x1b[0m\x1b[91ma\x1b[0m\x1b[33mi\x1b[0m\x1b[32mn\x1b[0m\x1b[34mb\x1b[0m\x1b[95mo\x1b[0m\x1b[35mw\x1b[0m");
+}
+
+WHEN(R"(the following string is attached as {string}:)", (const std::string& mediaType))
+{
+    Attach(docString->content, mediaType);
+}
+
+WHEN(R"(an array with {int} bytes is attached as {string})", (std::int32_t size, const std::string& mediaType))
+{
+    std::string data(size, '\0');
+    std::iota(data.begin(), data.end(), 0);
+    std::stringstream stream{ data };
+    Attach(stream, mediaType);
+}
+
+WHEN(R"(a PDF document is attached and renamed)")
+{
+    std::ifstream pdfFile{ currentCompileDir / "document.pdf", std::ios::binary };
+    Attach(pdfFile, cucumber_cpp::library::engine::AttachOptions{ "application/pdf", "renamed.pdf" });
+}
+
+WHEN(R"(a link to {string} is attached)", (const std::string& url))
+{
+    Link(url);
+}

cucumber_cpp/library/engine/ExecutionContext.hpp

@@ -30,7 +30,7 @@ namespace cucumber_cpp::library::engine
         void Attach(std::string data, OptionsOrMediaType mediaType);
         void Attach(std::istream& data, OptionsOrMediaType mediaType);
         void Log(std::string text);
-        void Link(std::string url, std::optional<std::string> title);
+        void Link(std::string url, std::optional<std::string> title = std::nullopt);
 
         Context& context;