diff --git a/test cases/d/9 features/app.d b/test cases/d/9 features/app.d
index 6b43bf055..05c56ca5f 100644
--- a/test cases/d/9 features/app.d	
+++ b/test cases/d/9 features/app.d	
@@ -41,6 +41,30 @@ void main (string[] args)
             exit (1);
         }
     }
+    
+    version (With_VersionInteger)
+        version(3) exit(0);
+
+    version (With_Debug)
+        debug exit(0);
+    
+    version (With_DebugInteger)
+        debug(3) exit(0);
+    
+    version (With_DebugIdentifier)
+        debug(DebugIdentifier) exit(0);
+    
+    version (With_DebugAll) {
+        int dbg = 0;
+        debug dbg++;
+        debug(2) dbg++;
+        debug(3) dbg++;
+        debug(4) dbg++;
+        debug(DebugIdentifier) dbg++;
+        
+        if (dbg == 5)
+            exit(0);
+    }
 
     // we fail here
     exit (1);
diff --git a/test cases/d/9 features/meson.build b/test cases/d/9 features/meson.build
index 694e48891..06f03414d 100644
--- a/test cases/d/9 features/meson.build	
+++ b/test cases/d/9 features/meson.build	
@@ -1,4 +1,4 @@
-project('D Features', 'd')
+project('D Features', 'd', default_options : ['debug=false'])
 
 # ONLY FOR BACKWARDS COMPATIBILITY.
 # DO NOT DO THIS IN NEW CODE!
@@ -44,3 +44,63 @@ e_test = executable('dapp_test',
     d_unittest: true
 )
 test('dapp_test', e_test)
+
+# test version level
+e_version_int = executable('dapp_version_int',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_VersionInteger', 3],
+)
+test('dapp_version_int_t', e_version_int, args: ['debug'])
+
+# test version level failure
+e_version_int_fail = executable('dapp_version_int_fail',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_VersionInteger', 2],
+)
+test('dapp_version_int_t_fail', e_version_int_fail, args: ['debug'], should_fail: true)
+
+# test debug conditions: disabled
+e_no_debug = executable('dapp_no_debug',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_Debug'],
+)
+test('dapp_no_debug_t_fail', e_no_debug, args: ['debug'], should_fail: true)
+
+# test debug conditions: enabled
+e_debug = executable('dapp_debug',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_Debug'],
+    d_debug: 1,
+)
+test('dapp_debug_t', e_debug, args: ['debug'])
+
+# test debug conditions: integer
+e_debug_int = executable('dapp_debug_int',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_DebugInteger'],
+    d_debug: 3,
+)
+test('dapp_debug_int_t', e_debug_int, args: ['debug'])
+
+# test debug conditions: identifier
+e_debug_ident = executable('dapp_debug_ident',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_DebugIdentifier'],
+    d_debug: 'DebugIdentifier',
+)
+test('dapp_debug_ident_t', e_debug_ident, args: ['debug'])
+
+# test with all debug conditions at once, and with redundant values
+e_debug_all = executable('dapp_debug_all',
+    test_src,
+    d_import_dirs: [data_dir],
+    d_module_versions: ['With_DebugAll'],
+    d_debug: ['4', 'DebugIdentifier', 2, 'DebugIdentifierUnused'],
+)
+test('dapp_debug_all_t', e_debug_all, args: ['debug'])