cmake: implements tests using CTest suite

the new tests are implemented with CTest suite of CMake.
To enable the tests you need to run cmake with -DBUILD_TESTING=ON
There are optional tests (that might not work) that can be enabled with
-DOPTIONAL_TEST=ON

So, to enable all tests and run it use the following command

mkdir build
cmake -DBUILD_TESTING=ON -DOPTIONA_TEST=ON ..
make
ctest

to debug the errors use

ctest --debug

You can always find all tests binary on build/test/

Implementation:
- check-modem* tests are implemented with shell script because it
  requires to execute many commands and therefore will be easy to
  manage. The file is configured at configuration time.
- for single binary we verify the exit status (default = 0) so you
  only need to build the binary and add it to add_test()

CMakeLists.txt

@@ -1,8 +1,3 @@
-# TODO:
-#  - check which MSVC are compatible
-#  - cpack
-#  - ctest
-
 cmake_minimum_required(VERSION 3.1.0)
 
 project(direwolf)
@@ -17,6 +12,7 @@ set(direwolf_VERSION_SUFFIX "")
 option(FORCE_SSE "Compile with SSE instruction only" OFF)
 option(FORCE_SSSE3 "Compile with SSSE3 instruction only" OFF)
 option(FORCE_SSE41 "Compile with SSE4.1 instruction only" OFF)
+option(OPTIONAL_TEST "Compile optional test (might be broken)" OFF)
 
 # where cmake find custom modules
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
@@ -70,6 +66,7 @@ if(direwolf_VERSION_COMMIT)
   add_definitions("-DEXTRA_VERSION=${direwolf_VERSION_COMMIT}")
 endif()
 
+set(CUSTOM_SRC_DIR "${CMAKE_SOURCE_DIR}/src")
 set(CUSTOM_EXTERNAL_DIR "${CMAKE_SOURCE_DIR}/external")
 set(CUSTOM_MISC_DIR "${CUSTOM_EXTERNAL_DIR}/misc")
 set(CUSTOM_REGEX_DIR "${CUSTOM_EXTERNAL_DIR}/regex")
@@ -80,6 +77,9 @@ set(CUSTOM_TELEMETRY_DIR "${CUSTOM_SCRIPTS_DIR}/telemetry-toolkit")
 set(CUSTOM_CONF_DIR "${CMAKE_SOURCE_DIR}/conf")
 set(CUSTOM_DOC_DIR "${CMAKE_SOURCE_DIR}/doc")
 set(CUSTOM_MAN_DIR "${CMAKE_SOURCE_DIR}/man")
+set(CUSTOM_TEST_DIR "${CMAKE_SOURCE_DIR}/test")
+set(CUSTOM_TEST_SCRIPTS_DIR "${CUSTOM_TEST_DIR}/scripts")
+set(CUSTOM_SHELL_SHABANG "#!/bin/sh -e")
 
 # if we don't set build_type
 if(NOT DEFINED CMAKE_BUILD_TYPE OR "${CMAKE_BUILD_TYPE}" STREQUAL "")
@@ -124,6 +124,8 @@ elseif (WIN32)
   # compile with full multicore
   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /MP")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP")
+
+  set(CUSTOM_SHELL_BIN "")
 endif()
 
 if (C_CLANG OR C_GCC)
@@ -191,6 +193,15 @@ add_subdirectory(${CUSTOM_MISC_DIR})
 # direwolf source code and utilities
 add_subdirectory(src)
 
+# ctest
+# Note CMake will generate tests only if the enable_testing() command
+# has been invoked. The CTest module invokes the command automatically
+# when the BUILD_TESTING option is ON.
+include(CTest)
+if(BUILD_TESTING)
+  add_subdirectory(test)
+endif()
+
 # manage scripts
 add_subdirectory(scripts)
 

src/CMakeLists.txt

@@ -1,5 +1,6 @@
 # global includes
 # not ideal but not so slow
+# otherwise use target_include_directories
 include_directories(
   ${GPSD_INCLUDE_DIRS}
   ${HAMLIB_INCLUDE_DIRS}
@@ -11,8 +12,7 @@ include_directories(
 
 # build gen_fff to create fsk_fast_filter.h
 # optimization for slow processors
-set(gen_fff_SOURCES
-  ${gen_fff_SOURCES}
+list(APPEND gen_fff_SOURCES
   demod_afsk.c
   dsp.c
   textcolor.c
@@ -32,9 +32,9 @@ add_custom_command(TARGET gen_fff
   WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
   )
 
+
 # direwolf
-set(direwolf_SOURCES
-  ${direwolf_SOURCES}
+list(APPEND direwolf_SOURCES
   direwolf.c
   aprs_tt.c
   audio_stats.c
@@ -97,29 +97,25 @@ set(direwolf_SOURCES
   )
 
 if(LINUX)
-  set(direwolf_SOURCES
-    ${direwolf_SOURCES}
+  list(APPEND direwolf_SOURCES
     audio.c
     )
   if(UDEV_FOUND)
-    set(direwolf_SOURCES
-      ${direwolf_SOURCES}
+    list(APPEND direwolf_SOURCES
       cm108.c
       )
   endif()
   elseif(WIN32) # windows
-      set(direwolf_SOURCES
-        ${direwolf_SOURCES}
-        audio_win.c
+    list(APPEND direwolf_SOURCES
+      audio_win.c
 
-        # icon
-        ${CMAKE_SOURCE_DIR}/cmake/cpack/direwolf.rc
-        )
+      # icon
+      ${CMAKE_SOURCE_DIR}/cmake/cpack/direwolf.rc
+      )
     else() # macOS freebsd openbsd
-  set(direwolf_SOURCES
-    ${direwolf_SOURCES}
-    audio_portaudio.c
-    )
+      list(APPEND direwolf_SOURCES
+        audio_portaudio.c
+        )
 endif()
 
 add_executable(direwolf
@@ -141,8 +137,7 @@ target_link_libraries(direwolf
   )
 
 # decode_aprs
-set(decode_aprs_SOURCES
-  ${decode_aprs_SOURCES}
+list(APPEND decode_aprs_SOURCES
   decode_aprs.c
   kiss_frame.c
   ax25_pad.c
@@ -178,8 +173,7 @@ target_link_libraries(decode_aprs
 
 # Convert between text and touch tone representation.
 # text2tt
-set(text2tt_SOURCES
-  ${text2tt_SOURCES}
+list(APPEND text2tt_SOURCES
   tt_text.c
   )
 
@@ -196,8 +190,7 @@ target_link_libraries(text2tt
   )
 
 # tt2text
-set(tt2text_SOURCES
-  ${tt2text_SOURCES}
+list(APPEND tt2text_SOURCES
   tt_text.c
   )
 
@@ -216,8 +209,7 @@ target_link_libraries(tt2text
 
 # Convert between Latitude/Longitude and UTM coordinates.
 # ll2utm
-set(ll2utm_SOURCES
-  ${ll2utm_SOURCES}
+list(APPEND ll2utm_SOURCES
   ll2utm.c
   textcolor.c
   )
@@ -232,8 +224,7 @@ target_link_libraries(ll2utm
   )
 
 # utm2ll
-set(utm2ll_SOURCES
-  ${utm2ll_SOURCES}
+list(APPEND utm2ll_SOURCES
   utm2ll.c
   textcolor.c
   )
@@ -250,8 +241,7 @@ target_link_libraries(utm2ll
 
 # Convert from log file to GPX.
 # log2gpx
-set(log2gpx_SOURCES
-  ${log2gpx_SOURCES}
+list(APPEND log2gpx_SOURCES
   log2gpx.c
   textcolor.c
   )
@@ -267,8 +257,7 @@ target_link_libraries(log2gpx
 
 # Test application to generate sound.
 # gen_packets
-set(gen_packets_SOURCES
-  ${gen_packets_SOURCES}
+list(APPEND gen_packets_SOURCES
   gen_packets.c
   ax25_pad.c
   hdlc_send.c
@@ -291,8 +280,7 @@ target_link_libraries(gen_packets
 
 # Unit test for AFSK demodulator
 # atest
-set(atest_SOURCES
-  ${atest_SOURCES}
+list(APPEND atest_SOURCES
   atest.c
   demod.c
   demod_afsk.c
@@ -333,8 +321,7 @@ target_link_libraries(atest
 
 # Multiple AGWPE network or serial port clients to test TNCs side by side.
 # aclients
-set(aclients_SOURCES
-  ${aclients_SOURCES}
+list(APPEND aclients_SOURCES
   aclients.c
   ax25_pad.c
   fcs_calc.c
@@ -354,8 +341,7 @@ target_link_libraries(aclients
 # Talk to a KISS TNC.
 # Note:  kiss_frame.c has conditional compilation on KISSUTIL.
 # kissutil
-set(kissutil_SOURCES
-  ${kissutil_SOURCES}
+list(APPEND kissutil_SOURCES
   kissutil.c
   kiss_frame.c
   ax25_pad.c
@@ -383,8 +369,7 @@ target_link_libraries(kissutil
 # List USB audio adapters than can use GPIO for PTT.
 # cm108
 if(UDEV_FOUND)
-  set(cm108_SOURCES
-    ${cm108_SOURCES}
+  list(APPEND cm108_SOURCES
     cm108.c
     textcolor.c
     )
@@ -406,8 +391,7 @@ endif()
 
 # Touch Tone to Speech sample application.
 # ttcalc
-set(ttcalc_SOURCES
-  ${ttcalc_SOURCES}
+list(APPEND ttcalc_SOURCES
   ttcalc.c
   ax25_pad.c
   fcs_calc.c
@@ -438,18 +422,3 @@ install(TARGETS kissutil DESTINATION bin)
 if(UDEV_FOUND)
   install(TARGETS cm108 DESTINATION bin)
 endif()
-
-
-
-## TESTS
-# Note CMake will generate tests only if the enable_testing() command
-# has been invoked. The CTest module invokes the command automatically
-# when the BUILD_TESTING option is ON.
-include(CTest)
-if(BUILD_TESTING)
-  #  add_test(NAME <name> COMMAND <command> [<arg>...]
-  #  [CONFIGURATIONS <config>...]
-#  [WORKING_DIRECTORY <dir>])
-
-
-endif()