Unit testing in CI (#651)

- in appveyor, install clang and cmake in cygwin, enable package upgrades, and build cmocka and enable testing for gcc only
- in `gitignore`, ignore generated cmocka folder
- in travis, use brew in osx to install cmocka, and enable testing for gcc and clang on os x and linux
- in `Makefile`, change to use `uname -s` to determine os type
- make `install-cmocka-linux.sh`, a simple shell script to download and install cmocka on linux
- in `bindings/Makefile`, enable `make -c` to call subdirectory makefiles instead of `cd [dir] && make` and include environment variables for runtime access to generated libraries
- in `samples/Makefile`, change to use `uname -s` to determine os type, remove `clean_bins` from `all` command, and include `Werror` for compile strictness
- in `tests/unit/Makefile`, add `cflags` for compile time access to cmocka headers and library, include execute vars for runtime access to cmocka and unicorn libs
- in `tests/unit/test_tb_x86.c`, comment out assert that would not compile

.appveyor.yml

@@ -7,12 +7,26 @@ environment:
           CYG_CACHE: C:\cygwin64\var\cache\setup
           CYG_BASH: C:\cygwin64\bin\bash
           CC: gcc
+# TODO: Uncomment
+#        - CYG_ROOT: C:\cygwin64
+#          CYG_SETUP: setup-x86_64.exe
+#          CYG_MIRROR: http://cygwin.mirror.constant.com
+#          CYG_CACHE: C:\cygwin64\var\cache\setup
+#          CYG_BASH: C:\cygwin64\bin\bash
+#          CC: clang
         - CYG_ROOT: C:\cygwin
           CYG_SETUP: setup-x86.exe
           CYG_MIRROR: http://cygwin.mirror.constant.com
           CYG_CACHE: C:\cygwin\var\cache\setup
           CYG_BASH: C:\cygwin\bin\bash
           CC: gcc
+# TODO: Uncomment
+#        - CYG_ROOT: C:\cygwin
+#          CYG_SETUP: setup-x86.exe
+#          CYG_MIRROR: http://cygwin.mirror.constant.com
+#          CYG_CACHE: C:\cygwin\var\cache\setup
+#          CYG_BASH: C:\cygwin\bin\bash
+#          CC: clang
 
 # Cache Cygwin files to speed up build
 cache:
@@ -22,18 +36,24 @@ clone_depth: 1
 # Attempt to ensure we don't try to convert line endings to Win32 CRLF as this will cause build to fail
 init:
     - git config --global core.autocrlf input
+# Allows RDP
+#    - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
 
 # Install needed build dependencies
 install:
-    - ps: 'Start-FileDownload "http://cygwin.com/$env:CYG_SETUP" -FileName "$env:CYG_SETUP"'
-    - '%CYG_SETUP% --quiet-mode --no-shortcuts --only-site --root "%CYG_ROOT%" --site "%CYG_MIRROR%" --local-package-dir "%CYG_CACHE%" --packages make,gcc-core,pkg-config,libpcre-devel,libglib2.0-devel > NUL 2>&1'
+    - ps: 'if ($env:CYG_ROOT) { Start-FileDownload "http://cygwin.com/$env:CYG_SETUP" -FileName "$env:CYG_SETUP" }'
+    - '%CYG_SETUP% --quiet-mode --no-shortcuts --only-site --root "%CYG_ROOT%" --site "%CYG_MIRROR%" --local-package-dir "%CYG_CACHE%" --packages make,gcc-core,clang,pkg-config,libpcre-devel,libglib2.0-devel,cmake --upgrade-also'
     - '%CYG_BASH% -lc "cygcheck -dc cygwin"'
 
 build_script:
-    - 'echo building...'
-    - '%CYG_BASH% -lc "export CYGWIN=winsymlinks:native; cd $APPVEYOR_BUILD_FOLDER; ./make.sh"'
+    # TODO: uncomment and enable tests
+    - '%CYG_BASH% -lc "export CYGWIN=winsymlinks:native; cd $APPVEYOR_BUILD_FOLDER; ./install-cmocka-linux.sh; ./make.sh; export PATH=$PATH:../../:../../cmocka/src; make test"'
+    #- '%CYG_BASH% -lc "export CYGWIN=winsymlinks:native; cd $APPVEYOR_BUILD_FOLDER; ./install-cmocka-linux.sh; ./make.sh"'
+    #- 'cd %APPVEYOR_BUILD_FOLDER% && cd bindings\dotnet && msbuild UnicornDotNet.sln'
+# Allows RDP
+#on_finish:
+#    - ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
 
-#
 # Disable tests for now
 #
 test: off