Work for test refactoring.

There are a few major areas in this change.

* CMake options are now located in a common cmake/NNGOptions.cmake
  file.  This should make it easier for folks to figure out what
  the options are, and how they are used.

* Tests are now scoped with their directory name, which should
  avoid possible name collisions with test names.

* A number of tests have been either moved or incorporated into
  the newer testutil/acutest framework.  We are moving away from
  my old c-convey framework to something easier to debug.

* We use CMake directories a bit more extensively leading to a much
  cleaner CMake structure.  It's not complete, but a big step in the
  right direction, and a preview of future work.

* Tests are now run with verbose flags, so we get more test results
  in the CI/CD logs.

1 files changed, 39 insertions, 0 deletions

diff --git a/src/protocol/bus0/bug1247_test.c b/src/protocol/bus0/bug1247_test.c
new file mode 100644
index 00000000..6f418f53
--- /dev/null
+++ b/src/protocol/bus0/bug1247_test.c
@@ -0,0 +1,39 @@
+//
+// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
+//
+// This software is supplied under the terms of the MIT License, a
+// copy of which should be located in the distribution where this
+// file was obtained (LICENSE.txt).  A copy of the license may also be
+// found online at https://opensource.org/licenses/MIT.
+//
+
+#include <string.h>
+
+#include <nng/nng.h>
+#include <nng/protocol/bus0/bus.h>
+
+#include "acutest.h"
+#include "testutil.h"
+
+void
+test_bug1247(void)
+{
+	nng_socket bus1, bus2;
+	char       addr[64];
+
+	testutil_scratch_addr("tcp", sizeof(addr), addr);
+
+	TEST_NNG_PASS(nng_bus0_open(&bus1));
+	TEST_NNG_PASS(nng_bus0_open(&bus2));
+
+	TEST_NNG_PASS(nng_listen(bus1, addr, NULL, 0));
+	TEST_NNG_FAIL(nng_listen(bus2, addr, NULL, 0), NNG_EADDRINUSE);
+
+	TEST_NNG_PASS(nng_close(bus2));
+	TEST_NNG_PASS(nng_close(bus1));
+}
+
+TEST_LIST = {
+	{ "bug1247", test_bug1247 },
+	{ NULL, NULL },
+};