From 1f4060442116511dddae5e322c824b92eb309e52 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 17 Apr 2024 12:08:02 -0400
Subject: Tests/CompileFeatures: Cover CUDA default standard level

---
 Tests/CMakeLists.txt                     |  2 ++
 Tests/CompileFeatures/CMakeLists.txt     | 16 ++++++++++++++++
 Tests/CompileFeatures/default_dialect.cu |  1 +
 3 files changed, 19 insertions(+)
 create mode 100644 Tests/CompileFeatures/default_dialect.cu

diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index fa388e0..42d958c 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -398,8 +398,10 @@ if(BUILD_TESTING)
   set(CompileFeatures_BUILD_OPTIONS
     -DCMake_TEST_C_STANDARDS=${TEST_STDS_C}
     -DCMake_TEST_CXX_STANDARDS=${TEST_STDS_CXX}
+    -DCMake_TEST_CUDA=${CMake_TEST_CUDA}
     )
   ADD_TEST_MACRO(CompileFeatures CompileFeatures)
+  set_property(TEST CompileFeatures APPEND PROPERTY LABELS "CUDA")
 
   ADD_TEST_MACRO(CMakeCommands.target_compile_features)
 
diff --git a/Tests/CompileFeatures/CMakeLists.txt b/Tests/CompileFeatures/CMakeLists.txt
index d6acd7b..8f118f3 100644
--- a/Tests/CompileFeatures/CMakeLists.txt
+++ b/Tests/CompileFeatures/CMakeLists.txt
@@ -298,6 +298,22 @@ if (CMAKE_CXX_COMPILE_FEATURES)
   endif()
 endif ()
 
+if (CMake_TEST_CUDA
+    AND CMAKE_CUDA_COMPILE_FEATURES
+    AND CMAKE_CUDA_STANDARD_DEFAULT
+    AND NOT CMAKE_CUDA_FLAGS MATCHES "-std=")
+  add_executable(default_dialect_cuda default_dialect.cu)
+  target_compile_definitions(default_dialect_cuda PRIVATE
+    DEFAULT_CXX26=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},26>
+    DEFAULT_CXX23=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},23>
+    DEFAULT_CXX20=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},20>
+    DEFAULT_CXX17=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},17>
+    DEFAULT_CXX14=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},14>
+    DEFAULT_CXX11=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},11>
+    DEFAULT_CXX98=$<EQUAL:${CMAKE_CUDA_STANDARD_DEFAULT},03>
+  )
+endif ()
+
 # always add a target "CompileFeatures"
 if ((NOT CXX_expected_features) OR
     (NOT cxx_auto_type IN_LIST CXX_expected_features))
diff --git a/Tests/CompileFeatures/default_dialect.cu b/Tests/CompileFeatures/default_dialect.cu
new file mode 100644
index 0000000..a549a5c
--- /dev/null
+++ b/Tests/CompileFeatures/default_dialect.cu
@@ -0,0 +1 @@
+#include "default_dialect.cpp"
-- 
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