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#===------------------------------------------------------------------------===#
#
# The KLEE Symbolic Virtual Machine
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
#===------------------------------------------------------------------------===#
if (TARGET gtest AND TARGET gtest_main)
# try to reuse LLVM's targets
message(WARNING "LLVM exports 'gtest' and 'gtest_main' targets (for Google "
"Test), so KLEE cannot create them. By default, KLEE will reuse "
"LLVM's 'gtest' and 'gtest_main' targets if they are available. This is, "
"however, only recommended if LLVM and KLEE were build with the same "
"compiler and linker flags to prevent any compatibility issues.\n"
"To prevent CMake from reusing the targets or to use a different version "
"of Google Test, try either of the following:\n"
"- Point LLVM_DIR to the directory containing the `LLVMConfig.cmake` file "
"of an installed copy of LLVM instead of a build tree.\n"
"- Pass -DLLVM_INCLUDE_TESTS=OFF to CMake when building LLVM. This "
"prevents building unit tests in LLVM (but not in KLEE) and exporting the "
"target to the build tree.")
if (GTEST_SRC_DIR)
message(FATAL_ERROR "Cannot use GTEST_SRC_DIR when targets 'gtest' and "
"'gtest_main' are already defined.\n"
"Either reuse LLVM's Google Test setup by not setting GTEST_SRC_DIR or "
"choose one of the options to prevent LLVM from exporting these targets.")
endif()
# check if it's really LLVM that exports them
list(FIND LLVM_EXPORTED_TARGETS "gtest" _GTEST_INDEX)
list(FIND LLVM_EXPORTED_TARGETS "test_main" _GTEST_MAIN_INDEX)
if (${_GTEST_INDEX} GREATER -1 AND ${_GTEST_MAIN_INDEX})
message(STATUS "Google Test: Reusing LLVM's 'gtest' and 'gtest_main' targets.")
# in this case, only include directory has to be set
if (LLVM_BUILD_MAIN_SRC_DIR)
set(GTEST_INCLUDE_DIR
"${LLVM_BUILD_MAIN_SRC_DIR}/utils/unittest/googletest/include"
CACHE
PATH
"Path to Google Test include directory"
)
endif()
else()
message(FATAL_ERROR "Reusing Google Test targets from LLVM failed:"
"LLVM_EXPORTED_TARGETS does not contain 'gtest' or 'gtest_main'.")
endif()
else()
# LLVM's targets are not reused
if (NOT GTEST_SRC_DIR)
if (USE_CMAKE_FIND_PACKAGE_LLVM AND LLVM_BUILD_MAIN_SRC_DIR)
# build from LLVM's utils directory
# NOTE: This can only be done using USE_CMAKE_FIND_PACKAGE_LLVM as
# LLVM replaced Google Test's CMakeLists.txt with its own,
# requiring add_llvm_library() from AddLLVM.cmake.
message(STATUS "Google Test: Building from LLVM's source tree.")
set(GTEST_INCLUDE_DIR
"${LLVM_BUILD_MAIN_SRC_DIR}/utils/unittest/googletest/include"
CACHE
PATH
"Path to Google Test include directory"
)
add_subdirectory("${LLVM_BUILD_MAIN_SRC_DIR}/utils/unittest/"
"${CMAKE_CURRENT_BINARY_DIR}/gtest_build")
# add includes for LLVM's modifications
target_include_directories(gtest BEFORE PRIVATE ${LLVM_INCLUDE_DIRS})
target_include_directories(gtest_main BEFORE PRIVATE ${LLVM_INCLUDE_DIRS})
else()
# try to find Google Test, as GTEST_SRC_DIR is not manually specified
find_path(GTEST_SRC_DIR
"src/gtest.cc"
HINTS
"/usr/src/gtest"
# prevent CMake from finding gtest.cc in LLVM's utils directory
NO_DEFAULT_PATH
DOC
"Path to Google Test source directory"
)
endif()
endif()
if (NOT (TARGET gtest AND TARGET gtest_main))
# building from GTEST_SRC_DIR, not from LLVM's utils directory
find_path(GTEST_INCLUDE_DIR
"gtest/gtest.h"
HINTS
"${GTEST_SRC_DIR}/include"
NO_DEFAULT_PATH
DOC
"Path to Google Test include directory"
)
if (NOT EXISTS "${GTEST_SRC_DIR}")
message(FATAL_ERROR "Google Test source directory \"${GTEST_SRC_DIR}\" "
"cannot be found.\n"
"Try passing -DGTEST_SRC_DIR=<path_to_gtest_source> to CMake where "
"<path_to_gtest_source> is the path to the Google Test source tree.\n"
"Alternatively, you can disable unit tests by passing "
"-DENABLE_UNIT_TESTS=OFF to CMake.")
endif()
message(STATUS "Google Test: Building from source.")
message(STATUS "GTEST_SRC_DIR: ${GTEST_SRC_DIR}")
# Prevent Google Test from adding to our install target.
# Required for >= 1.8.0, but can only be disabled starting with 1.8.1
set(GTEST_INSTALL OFF CACHE BOOL "disable installing Google Test" FORCE)
# Build Google Test as part of our project
add_subdirectory(${GTEST_SRC_DIR} "${CMAKE_CURRENT_BINARY_DIR}/gtest_build")
endif()
# build Google Test with KLEE's defines and compile flags
target_compile_definitions(gtest PRIVATE ${KLEE_COMPONENT_CXX_DEFINES})
target_compile_definitions(gtest_main PRIVATE ${KLEE_COMPONENT_CXX_DEFINES})
target_compile_options(gtest PRIVATE ${KLEE_COMPONENT_CXX_FLAGS})
target_compile_options(gtest_main PRIVATE ${KLEE_COMPONENT_CXX_FLAGS})
endif()
# This keeps track of all the unit test
# targets so we can ensure they are built
# before trying to run them.
define_property(GLOBAL
PROPERTY KLEE_UNIT_TEST_TARGETS
BRIEF_DOCS "KLEE unit tests"
FULL_DOCS "KLEE unit tests"
)
if (NOT IS_DIRECTORY "${GTEST_INCLUDE_DIR}")
message(FATAL_ERROR
"Cannot find Google Test include directory \"${GTEST_INCLUDE_DIR}\"")
endif()
message(STATUS "GTEST_INCLUDE_DIR: ${GTEST_INCLUDE_DIR}")
function(add_klee_unit_test target_name)
add_executable(${target_name} ${ARGN})
target_link_libraries(${target_name} PRIVATE gtest_main)
target_include_directories(${target_name} BEFORE PRIVATE "${GTEST_INCLUDE_DIR}")
target_include_directories(${target_name} BEFORE PRIVATE ${KLEE_COMPONENT_EXTRA_INCLUDE_DIRS})
set_target_properties(${target_name}
PROPERTIES
RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/unittests/"
)
set_property(GLOBAL
APPEND
PROPERTY KLEE_UNIT_TEST_TARGETS
${target_name}
)
endfunction()
# Unit Tests
add_subdirectory(Assignment)
add_subdirectory(Expr)
add_subdirectory(Ref)
add_subdirectory(Solver)
add_subdirectory(TreeStream)
add_subdirectory(DiscretePDF)
add_subdirectory(Time)
# Set up lit configuration
set (UNIT_TEST_EXE_SUFFIX "Test")
configure_file(lit-unit-tests-common.site.cfg.in
${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
@ONLY)
# Add a target to run all the unit tests using lit
get_property(UNIT_TEST_DEPENDS
GLOBAL
PROPERTY KLEE_UNIT_TEST_TARGETS
)
add_custom_target(unittests
COMMAND
"${LIT_TOOL}" ${LIT_ARGS} "${CMAKE_CURRENT_BINARY_DIR}"
DEPENDS ${UNIT_TEST_DEPENDS}
COMMENT "Running unittests"
${ADD_CUSTOM_COMMAND_USES_TERMINAL_ARG}
)
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