tests: Add test_connection, to check copying

murraycu · murraycu · commit 0136f43a7ad5 · 2019-09-26T11:59:04.000+02:00
For now, this just confirms that we can now copy empty sigc::connection
instances. (See the previous commit.)
diff --git a/tests/.gitignore b/tests/.gitignore
@@ -8,6 +8,7 @@
 /test_bind_refptr
 /test_bind_return
 /test_compose
+/test_connection
 /test_copy_invalid_slot
 /test_cpp11_lambda
 /test_custom
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
@@ -25,6 +25,7 @@ set (TEST_SOURCE_FILES
   test_bind_refptr.cc
   test_bind_return.cc
   test_compose.cc
+  test_connection.cc
   test_copy_invalid_slot.cc
   test_cpp11_lambda.cc
   test_custom.cc
diff --git a/tests/Makefile.am b/tests/Makefile.am
@@ -32,6 +32,7 @@ check_PROGRAMS = \
   test_bind_refptr \
   test_bind_return \
   test_compose \
+  test_connection \
   test_copy_invalid_slot \
   test_cpp11_lambda \
   test_custom \
@@ -75,6 +76,7 @@ test_bind_ref_SOURCES        = test_bind_ref.cc $(sigc_test_util)
 test_bind_refptr_SOURCES     = test_bind_refptr.cc $(sigc_test_util)
 test_bind_return_SOURCES     = test_bind_return.cc $(sigc_test_util)
 test_compose_SOURCES         = test_compose.cc $(sigc_test_util)
+test_connection_SOURCES      = test_connection.cc $(sigc_test_util)
 test_copy_invalid_slot_SOURCES = test_copy_invalid_slot.cc $(sigc_test_util)
 test_cpp11_lambda_SOURCES    = test_cpp11_lambda.cc $(sigc_test_util)
 test_custom_SOURCES          = test_custom.cc $(sigc_test_util)
diff --git a/tests/memleakcheck.sh b/tests/memleakcheck.sh
@@ -5,7 +5,7 @@
 #  valgrind --leak-check=full .libs/lt-test_*
 
 for testprog in  test_accum_iter test_accumulated test_bind test_bind_as_slot \
-  test_bind_ref test_bind_refptr test_bind_return test_compose \
+  test_bind_ref test_bind_refptr test_bind_return test_compose test_connection \
   test_copy_invalid_slot test_cpp11_lambda test_custom test_disconnect \
   test_disconnect_during_emit test_exception_catch test_hide \
   test_limit_reference test_member_method_trait test_mem_fun test_ptr_fun \
diff --git a/tests/test_connection.cc b/tests/test_connection.cc
@@ -0,0 +1,45 @@
+/* Copyright 2019, The libsigc++ Development Team
+ *  Assigned to public domain.  Use as you wish without restriction.
+ */
+
+#include "testutilities.h"
+#include <sigc++/trackable.h>
+#include <sigc++/signal.h>
+#include <iostream>
+
+namespace
+{
+
+TestUtilities* util = nullptr;
+std::ostringstream result_stream;
+
+void
+test_connection_copy_empty()
+{
+  sigc::connection con1;
+
+  // Try to prevent the compiler from optimising away the copy.
+  std::cout << &con1 << std::endl;
+
+  sigc::connection con2(con1);
+
+  // Try to prevent the compiler from optimising away the copy.
+  std::cout << &con2 << std::endl;
+}
+
+} // end anonymous namespace
+
+int
+main(int argc, char* argv[])
+{
+  util = TestUtilities::get_instance();
+
+  if (!util->check_command_args(argc, argv))
+    return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
+
+  test_connection_copy_empty();
+
+  // See also test_disconnection.cc
+
+  return util->get_result_and_delete_instance() ? EXIT_SUCCESS : EXIT_FAILURE;
+}
