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, 140 insertions, 0 deletions

diff --git a/cmake/NNGOptions.cmake b/cmake/NNGOptions.cmake
new file mode 100644
index 00000000..b8067bca
--- /dev/null
+++ b/cmake/NNGOptions.cmake
@@ -0,0 +1,140 @@
+#
+# 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.
+#
+
+# NNG Options.  These are user configurable knobs.
+
+include(CMakeDependentOption)
+
+if (CMAKE_CROSSCOMPILING)
+    set(NNG_NATIVE_BUILD OFF)
+else ()
+    set(NNG_NATIVE_BUILD ON)
+endif ()
+
+# Global options.
+option(BUILD_SHARED_LIBS "Build shared library" ${BUILD_SHARED_LIBS})
+
+# We only build command line tools and tests if we are not in a
+# cross-compile situation.  Cross-compiling users who still want to
+# build these must enable them explicitly.  Some of these switches
+# must be enabled rather early as we use their values later.
+option(NNG_TESTS "Build and run tests." ${NNG_NATIVE_BUILD})
+option(NNG_TOOLS "Build extra tools." ${NNG_NATIVE_BUILD})
+option(NNG_ENABLE_NNGCAT "Enable building nngcat utility." ${NNG_TOOLS})
+option(NNG_ENABLE_COVERAGE "Enable coverage reporting." OFF)
+# Eliding deprecated functionality can be used to build a slimmed down
+# version of the library, or alternatively to test for application
+# preparedness for expected feature removals (in the next major release.)
+# Applications can also set the NNG_ELIDE_DEPRECATED preprocessor symbol
+# before including <nng/nng.h> -- this will prevent declarations from
+# being exposed to applications, but it will not affect their ABI
+# availability for existing compiled applications.
+# Note: Currently this breaks the test suite, so we only do it
+# for the public library.
+option(NNG_ELIDE_DEPRECATED "Elide deprecated functionality." OFF)
+
+option(NNG_ENABLE_STATS "Enable statistics." ON)
+mark_as_advanced(NNG_ENABLE_STATS)
+
+# Protocols.
+option (NNG_PROTO_BUS0 "Enable BUSv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_BUS0)
+
+option (NNG_PROTO_PAIR0 "Enable PAIRv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_PAIR0)
+
+option (NNG_PROTO_PAIR1 "Enable PAIRv1 protocol." ON)
+mark_as_advanced(NNG_PROTO_PAIR1)
+
+option (NNG_PROTO_PUSH0 "Enable PUSHv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_PUSH0)
+
+option (NNG_PROTO_PULL0 "Enable PULLv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_PULL0)
+
+option (NNG_PROTO_PUB0 "Enable PUBv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_PUB0)
+
+option (NNG_PROTO_SUB0 "Enable SUBv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_SUB0)
+
+option(NNG_PROTO_REQ0 "Enable REQv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_REQ0)
+
+option(NNG_PROTO_REP0 "Enable REPv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_REP0)
+
+option (NNG_PROTO_RESPONDENT0 "Enable RESPONDENTv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_RESPONDENT0)
+
+option (NNG_PROTO_SURVEYOR0 "Enable SURVEYORv0 protocol." ON)
+mark_as_advanced(NNG_PROTO_SURVEYOR0)
+
+# TLS support.
+
+# Enabling TLS is required to enable support for the TLS transport
+# and WSS.  It does require a 3rd party TLS engine to be selected.
+option(NNG_ENABLE_TLS "Enable TLS support." OFF)
+if (NNG_ENABLE_TLS)
+    set(NNG_SUPP_TLS ON)
+endif ()
+
+if (NNG_ENABLE_TLS)
+    set(NNG_TLS_ENGINES mbed wolf none)
+    # We assume Mbed for now.  (Someday replaced perhaps with Bear.)
+    set(NNG_TLS_ENGINE mbed CACHE STRING "TLS engine to use.")
+    set_property(CACHE NNG_TLS_ENGINE PROPERTY STRINGS ${NNG_TLS_ENGINES})
+else ()
+    set(NNG_TLS_ENGINE none)
+endif ()
+
+# HTTP API support.
+option (NNG_ENABLE_HTTP "Enable HTTP API." ON)
+if (NNG_ENABLE_HTTP)
+    set(NNG_SUPP_HTTP ON)
+endif()
+mark_as_advanced(NNG_ENABLE_HTTP)
+
+#
+# Transport Options.
+#
+
+option (NNG_TRANSPORT_INPROC "Enable inproc transport." ON)
+mark_as_advanced(NNG_TRANSPORT_INPROC)
+
+option (NNG_TRANSPORT_IPC "Enable IPC transport." ON)
+mark_as_advanced(NNG_TRANSPORT_IPC)
+
+# TCP transport
+option (NNG_TRANSPORT_TCP "Enable TCP transport." ON)
+mark_as_advanced(NNG_TRANSPORT_TCP)
+
+# TLS transport
+option (NNG_TRANSPORT_TLS "Enable TLS transport." ON)
+mark_as_advanced(NNG_TRANSPORT_TLS)
+
+# WebSocket
+option (NNG_TRANSPORT_WS "Enable WebSocket transport." ON)
+mark_as_advanced(NNG_TRANSPORT_WS)
+
+CMAKE_DEPENDENT_OPTION(NNG_TRANSPORT_WSS "Enable WSS transport." ON
+        "NNG_ENABLE_TLS" OFF)
+mark_as_advanced(NNG_TRANSPORT_WSS)
+
+# ZeroTier
+option (NNG_TRANSPORT_ZEROTIER "Enable ZeroTier transport (requires libzerotiercore)." OFF)
+mark_as_advanced(NNG_TRANSPORT_ZEROTIER)
+
+if (NNG_TRANSPORT_WS OR NNG_TRANSPORT_WSS)
+    # Make sure things we *MUST* have are enabled.
+    set(NNG_SUPP_WEBSOCKET ON)
+    set(NNG_SUPP_HTTP ON)
+    set(NNG_SUPP_BASE64 ON)
+    set(NNG_SUPP_SHA1 ON)
+endif()