lang: add translation tests

2 files changed, 44 insertions, 1 deletions

diff --git a/lang/CMakeLists.txt b/lang/CMakeLists.txt
index 4bc985c..9ba960b 100644
--- a/lang/CMakeLists.txt
+++ b/lang/CMakeLists.txt
@@ -35,4 +35,18 @@ target_compile_definitions("lang" INTERFACE
   "LOCALEDIR=\"${CMAKE_INSTALL_FULL_LOCALEDIR}\""
 )
 
-add_dependencies("lang" "mofiles")
\ No newline at end of file
+add_dependencies("lang" "mofiles")
+
+# Tests
+
+add_executable("lang-tests"
+  "tests/translations.cpp"
+)
+
+target_link_libraries("lang-tests" PRIVATE
+  "Catch2::Catch2"
+  
+  "turns::intl-test-main"
+)
+
+catch_discover_tests("lang-tests")
\ No newline at end of file
diff --git a/lang/tests/translations.cpp b/lang/tests/translations.cpp
new file mode 100644
index 0000000..1bb78a5
--- /dev/null
+++ b/lang/tests/translations.cpp
@@ -0,0 +1,29 @@
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators.hpp>
+
+#include <libintl.h>
+
+#include <format>
+#include <string>
+
+TEST_CASE("All supported languages have translations")
+{
+  auto message = GENERATE(
+    "Turns",
+    "Add a participant",
+    "No active turn-order",
+    "_Quit"
+  );
+  
+  auto locale = GENERATE(
+    "de_CH.UTF-8",
+    "de_DE.UTF-8",
+    "de_AT.UTF-8"
+  );
+
+  SECTION(std::format("'{}' has a translation in '{}'", message, locale))
+  {
+    setlocale(LC_ALL, locale);
+    REQUIRE(std::string{gettext(message)} != message);
+  }
+}