Add github CI, fix cmake test definition

.github/workflows/cmake.yml

@@ -0,0 +1,37 @@
+name: CMake
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+env:
+  # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
+  BUILD_TYPE: Release
+
+jobs:
+  build:
+    # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
+    # You can convert this to a matrix build if you need cross-platform coverage.
+    # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Configure CMake
+      # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
+      # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DWITH_TESTS=ON -DWITH_EXAMPLE=ON
+
+    - name: Build
+      # Build your program with the given configuration
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+
+    - name: Test
+      working-directory: ${{github.workspace}}/build
+      # Execute tests defined by the CMake configuration.  
+      # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
+      run: ctest -C ${{env.BUILD_TYPE}}
+

.gitignore

@@ -30,3 +30,9 @@ docopt-config-version.cmake
 
 # Files configured by CMake
 run_tests
+
+# cmake build directory
+build/
+
+# VS Code directory
+.vscode/

CMakeLists.txt

@@ -2,6 +2,7 @@ cmake_minimum_required(VERSION 3.1)
 project(docopt.cpp VERSION 0.6.2)
 
 include(GNUInstallDirs)
+enable_testing()
 
 #============================================================================
 # Settable options
@@ -73,6 +74,7 @@ endif()
 # Tests
 #============================================================================
 if(WITH_TESTS)
+	find_program(PYTHON python REQUIRED)
 	set(TESTPROG "${CMAKE_CURRENT_BINARY_DIR}/run_testcase")
 	set(TESTCASES "${PROJECT_SOURCE_DIR}/testcases.docopt")
 	add_executable(run_testcase run_testcase.cpp)
@@ -82,7 +84,9 @@ if(WITH_TESTS)
 			"${CMAKE_CURRENT_BINARY_DIR}/run_tests"
 			ESCAPE_QUOTES
 	)
-	add_test("Testcases docopt" ${TESTPROG})
+	add_test(NAME Testcases_docopt 
+	COMMAND ${PYTHON} "${CMAKE_CURRENT_BINARY_DIR}/run_tests"
+	WORKING_DIRECTORY ${PROJECT_SOURCE_DIR})
 endif()
 
 #============================================================================