Setup test infrastructure

CMakeLists.txt

@@ -4,6 +4,7 @@ project(Parsodus VERSION 1.0)
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED 14)
 
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
 include(ExternalProject)
 find_package(mstch QUIET)
@@ -46,6 +47,64 @@ if (NOT LEXESIS_EXE_FOUND)
     ExternalProject_Get_Property(ext-lexesis binary_dir)
     set(LEXESIS_EXE "${binary_dir}/bin/Lexesis")
 endif()
+
+#Enable code coverage on debug
+if(CMAKE_BUILD_TYPE MATCHES Debug)
+    option(USE_SYSTEM_LCOV "Use the lcov version found on the system, if available" YES)
+    include(CodeCoverage)
+    if (NOT LCOV_PATH OR NOT USE_SYSTEM_LCOV)
+        ExternalProject_Add(ext-lcov
+            GIT_REPOSITORY https://github.com/linux-test-project/lcov
+            CONFIGURE_COMMAND ""
+            BUILD_COMMAND ""
+            INSTALL_COMMAND ""
+            TEST_COMMAND "")
+        if (${CMAKE_VERSION} STRGREATER "3.0.1")
+            set_target_properties(ext-lcov PROPERTIES EXCLUDE_FROM_ALL 1)
+        endif()
+        ExternalProject_Get_Property(ext-lcov source_dir)
+        set(LCOV_PATH "${source_dir}/bin/lcov")
+        set(GENHTML_PATH "${source_dir}/bin/genhtml")
+    endif()
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -fprofile-arcs -ftest-coverage")
+endif()
+
+option(USE_SYSTEM_GTEST "Use the google test framework installed on the system, if available" YES)
+find_package(GTest)
+if (NOT GTEST_FOUND OR NOT USE_SYSTEM_GTEST)
+    #Google test framework
+    ExternalProject_Add(ext-gtest
+        GIT_REPOSITORY https://github.com/google/googletest.git
+        CMAKE_ARGS -DBUILD_GMOCK=NO -DBUILD_GTEST=YES
+        INSTALL_COMMAND ""
+        )
+    add_library(gtest IMPORTED STATIC GLOBAL)
+    add_dependencies(gtest ext-gtest)
+    add_library(gtest_main IMPORTED STATIC GLOBAL)
+    add_dependencies(gtest_main ext-gtest)
+
+    ExternalProject_Get_Property(ext-gtest source_dir binary_dir)
+
+    find_package(Threads)
+    set_target_properties(gtest PROPERTIES
+        "IMPORTED_LOCATION" "${binary_dir}/googletest/${CMAKE_STATIC_LIBRARY_PREFIX}gtest${CMAKE_STATIC_LIBRARY_SUFFIX}"
+        "IMPORTED_LINK_INTERFACE_LIBRARIES" "${CMAKE_THREAD_LIBS_INIT}"
+        )
+
+    set_target_properties(gtest_main PROPERTIES
+        "IMPORTED_LOCATION" "${binary_dir}/googletest/${CMAKE_STATIC_LIBRARY_PREFIX}gtest_main${CMAKE_STATIC_LIBRARY_SUFFIX}"
+        "IMPORTED_LINK_INTERFACE_LIBRARIES" "${CMAKE_THREAD_LIBS_INIT}"
+        )
+    include_directories(${source_dir}/googletest/include)
+    set(GTEST_LIBRARIES gtest)
+    set(GTEST_BOTH_LIBRARIES gtest_main gtest)
+else()
+    find_package(GTest REQUIRED)
+    find_package(Threads REQUIRED)
+    include_directories(GTEST_INCLUDE_DIRS)
+    set(GTEST_BOTH_LIBRARIES gtest_main gtest ${CMAKE_THREAD_LIBS_INIT})
+endif()
+
 ##########################################
 
 find_package(Doxygen)
@@ -56,8 +115,17 @@ endif(DOXYGEN_FOUND)
 
 set(CMAKE_INSTALL_PREFIX "${CMAKE_CURRENT_BINARY_DIR}")
 
+##Warning level
+if (${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU" OR ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -pedantic")
+elseif (${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
+endif()
+
 include_directories(include)
 add_subdirectory(src)
+enable_testing()
+add_subdirectory(tests)
 add_dependencies(Parsodus ext-optparse)
 
 install(DIRECTORY templates

cmake/CodeCoverage.cmake

@@ -0,0 +1,194 @@
+# Copyright (c) 2012 - 2015, Lars Bilke
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification,
+# are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this
+#    list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+#    this list of conditions and the following disclaimer in the documentation
+#    and/or other materials provided with the distribution.
+#
+# 3. Neither the name of the copyright holder nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without
+#    specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+#
+#
+# 2012-01-31, Lars Bilke
+# - Enable Code Coverage
+#
+# 2013-09-17, Joakim Söderberg
+# - Added support for Clang.
+# - Some additional usage instructions.
+#
+# USAGE:
+
+# 0. (Mac only) If you use Xcode 5.1 make sure to patch geninfo as described here:
+#      http://stackoverflow.com/a/22404544/80480
+#
+# 1. Copy this file into your cmake modules path.
+#
+# 2. Add the following line to your CMakeLists.txt:
+#      INCLUDE(CodeCoverage)
+#
+# 3. Set compiler flags to turn off optimization and enable coverage:
+#    SET(CMAKE_CXX_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage")
+#	 SET(CMAKE_C_FLAGS "-g -O0 -fprofile-arcs -ftest-coverage")
+#
+# 3. Use the function SETUP_TARGET_FOR_COVERAGE to create a custom make target
+#    which runs your test executable and produces a lcov code coverage report:
+#    Example:
+#	 SETUP_TARGET_FOR_COVERAGE(
+#				my_coverage_target  # Name for custom target.
+#				test_driver         # Name of the test driver executable that runs the tests.
+#									# NOTE! This should always have a ZERO as exit code
+#									# otherwise the coverage generation will not complete.
+#				coverage            # Name of output directory.
+#				)
+#
+# 4. Build a Debug build:
+#	 cmake -DCMAKE_BUILD_TYPE=Debug ..
+#	 make
+#	 make my_coverage_target
+#
+#
+
+# Check prereqs
+FIND_PROGRAM( GCOV_PATH gcov )
+FIND_PROGRAM( LCOV_PATH lcov )
+FIND_PROGRAM( GENHTML_PATH genhtml )
+FIND_PROGRAM( GCOVR_PATH gcovr PATHS ${CMAKE_SOURCE_DIR}/tests)
+
+IF(NOT GCOV_PATH)
+	MESSAGE(FATAL_ERROR "gcov not found! Aborting...")
+ENDIF() # NOT GCOV_PATH
+
+IF(NOT CMAKE_COMPILER_IS_GNUCXX)
+	# Clang version 3.0.0 and greater now supports gcov as well.
+	MESSAGE(WARNING "Compiler is not GNU gcc! Clang Version 3.0.0 and greater supports gcov as well, but older versions don't.")
+
+	IF(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+		MESSAGE(FATAL_ERROR "Compiler is not GNU gcc! Aborting...")
+	ENDIF()
+ENDIF() # NOT CMAKE_COMPILER_IS_GNUCXX
+
+SET(CMAKE_CXX_FLAGS_COVERAGE
+    "-g -O0 --coverage -fprofile-arcs -ftest-coverage"
+    CACHE STRING "Flags used by the C++ compiler during coverage builds."
+    FORCE )
+SET(CMAKE_C_FLAGS_COVERAGE
+    "-g -O0 --coverage -fprofile-arcs -ftest-coverage"
+    CACHE STRING "Flags used by the C compiler during coverage builds."
+    FORCE )
+SET(CMAKE_EXE_LINKER_FLAGS_COVERAGE
+    ""
+    CACHE STRING "Flags used for linking binaries during coverage builds."
+    FORCE )
+SET(CMAKE_SHARED_LINKER_FLAGS_COVERAGE
+    ""
+    CACHE STRING "Flags used by the shared libraries linker during coverage builds."
+    FORCE )
+MARK_AS_ADVANCED(
+    CMAKE_CXX_FLAGS_COVERAGE
+    CMAKE_C_FLAGS_COVERAGE
+    CMAKE_EXE_LINKER_FLAGS_COVERAGE
+    CMAKE_SHARED_LINKER_FLAGS_COVERAGE )
+
+IF ( NOT (CMAKE_BUILD_TYPE STREQUAL "Debug" OR CMAKE_BUILD_TYPE STREQUAL "Coverage"))
+  MESSAGE( WARNING "Code coverage results with an optimized (non-Debug) build may be misleading" )
+ENDIF() # NOT CMAKE_BUILD_TYPE STREQUAL "Debug"
+
+
+# Param _targetname     The name of new the custom make target
+# Param _testrunner     The name of the target which runs the tests.
+#						MUST return ZERO always, even on errors.
+#						If not, no coverage report will be created!
+# Param _outputname     lcov output is generated as _outputname.info
+#                       HTML report is generated in _outputname/index.html
+# Optional fourth parameter is passed as arguments to _testrunner
+#   Pass them in list form, e.g.: "-j;2" for -j 2
+FUNCTION(SETUP_TARGET_FOR_COVERAGE _targetname _testrunner _outputname)
+
+	IF(NOT LCOV_PATH)
+		MESSAGE(FATAL_ERROR "lcov not found! Aborting...")
+	ENDIF() # NOT LCOV_PATH
+
+	IF(NOT GENHTML_PATH)
+		MESSAGE(FATAL_ERROR "genhtml not found! Aborting...")
+	ENDIF() # NOT GENHTML_PATH
+
+	# Setup target
+	ADD_CUSTOM_TARGET(${_targetname}
+
+		# Cleanup lcov
+		${LCOV_PATH} --directory . --zerocounters
+
+		# Run tests
+		COMMAND ${_testrunner} ${ARGV3}
+
+		# Capturing lcov counters and generating report
+		COMMAND ${LCOV_PATH} --directory . --capture --output-file ${_outputname}.info
+        COMMAND ${LCOV_PATH} --remove ${_outputname}.info 'tests/*' '/usr/*' '${CMAKE_BINARY_DIR}/ext-*' --output-file ${_outputname}.info.cleaned
+		COMMAND ${GENHTML_PATH} -o ${_outputname} ${_outputname}.info.cleaned
+		COMMAND ${CMAKE_COMMAND} -E remove ${_outputname}.info ${_outputname}.info.cleaned
+
+		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+		COMMENT "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
+	)
+
+	# Show info where to find the report
+	ADD_CUSTOM_COMMAND(TARGET ${_targetname} POST_BUILD
+		COMMAND ;
+		COMMENT "Open ./${_outputname}/index.html in your browser to view the coverage report."
+	)
+
+ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE
+
+# Param _targetname     The name of new the custom make target
+# Param _testrunner     The name of the target which runs the tests
+# Param _outputname     cobertura output is generated as _outputname.xml
+# Optional fourth parameter is passed as arguments to _testrunner
+#   Pass them in list form, e.g.: "-j;2" for -j 2
+FUNCTION(SETUP_TARGET_FOR_COVERAGE_COBERTURA _targetname _testrunner _outputname)
+
+	IF(NOT PYTHON_EXECUTABLE)
+		MESSAGE(FATAL_ERROR "Python not found! Aborting...")
+	ENDIF() # NOT PYTHON_EXECUTABLE
+
+	IF(NOT GCOVR_PATH)
+		MESSAGE(FATAL_ERROR "gcovr not found! Aborting...")
+	ENDIF() # NOT GCOVR_PATH
+
+	ADD_CUSTOM_TARGET(${_targetname}
+
+		# Run tests
+		${_testrunner} ${ARGV3}
+
+		# Running gcovr
+		COMMAND ${GCOVR_PATH} -x -r ${CMAKE_SOURCE_DIR} -e '${CMAKE_SOURCE_DIR}/tests/'  -o ${_outputname}.xml
+		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+		COMMENT "Running gcovr to produce Cobertura code coverage report."
+	)
+
+	# Show info where to find the report
+	ADD_CUSTOM_COMMAND(TARGET ${_targetname} POST_BUILD
+		COMMAND ;
+		COMMENT "Cobertura code coverage report saved in ${_outputname}.xml."
+	)
+
+ENDFUNCTION() # SETUP_TARGET_FOR_COVERAGE_COBERTURA
+

src/CMakeLists.txt

@@ -1,10 +1,17 @@
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in ${CMAKE_CURRENT_BINARY_DIR}/config.h @ONLY)
 include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
 
-add_custom_command(DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/parsodusLexer.lxs"
+if (NOT LEXESIS_EXE_FOUND)
+    add_custom_command(DEPENDS ext-lexesis "${CMAKE_CURRENT_SOURCE_DIR}/parsodusLexer.lxs"
         COMMAND ${LEXESIS_EXE} ARGS -d "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/parsodusLexer.lxs"
         OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/ParsodusLexer.h" "${CMAKE_CURRENT_BINARY_DIR}/ParsodusLexer.cpp"
         )
+else()
+    add_custom_command(DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/parsodusLexer.lxs"
+        COMMAND ${LEXESIS_EXE} ARGS -d "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/parsodusLexer.lxs"
+        OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/ParsodusLexer.h" "${CMAKE_CURRENT_BINARY_DIR}/ParsodusLexer.cpp"
+        )
+endif()
 include_directories("${CMAKE_CURRENT_BINARY_DIR}")
 
 # add_library(Parsodus-tables
@@ -30,17 +37,6 @@ target_link_libraries(Parsodus
     pds
     mstch::mstch)
 
-if (CMAKE_BUILD_TYPE MATCHES Debug)
-    add_executable(Parsodus-test
-        test.cpp
-        )
-    target_link_libraries(Parsodus-test
-        #Parsodus-tables
-        Parsodus-backends
-        pds
-        mstch::mstch)
-endif()
-
 install(TARGETS Parsodus
     RUNTIME DESTINATION bin
     )

src/test.cpp

@@ -1,5 +0,0 @@
-#include <iostream>
-
-int main() {
-    std::cout << "Parsodus to the rescue" << std::endl;
-}

tests/CMakeLists.txt

@@ -0,0 +1,20 @@
+add_executable(Parsodus-test
+    test.cpp
+    )
+target_link_libraries(Parsodus-test
+    #Parsodus-tables
+    Parsodus-backends
+    pds
+    mstch::mstch
+    ${GTEST_BOTH_LIBRARIES}
+    )
+include(FindGTest)
+GTEST_ADD_TESTS(Parsodus-test "" AUTO)
+
+if (CMAKE_BUILD_TYPE MATCHES Debug)
+    SETUP_TARGET_FOR_COVERAGE(coverage Parsodus-test coverage)
+    if (TARGET ext-lcov)
+        add_dependencies(coverage ext-lcov)
+    endif ()
+endif()
+

tests/test.cpp

@@ -0,0 +1,7 @@
+#include <iostream>
+#include "gtest/gtest.h"
+
+TEST(parsodus, temporary) {
+    std::string parsodus = "awesome";
+    ASSERT_EQ(parsodus, "awesome");
+}