libpeer/third_party/coreMQTT/tools/cmock/coverage.cmake

# Taken from amazon-freertos repository
cmake_minimum_required(VERSION 3.13)
set(BINARY_DIR ${CMAKE_BINARY_DIR})
# reset coverage counters
execute_process(
            COMMAND lcov --directory ${CMAKE_BINARY_DIR}
                         --base-directory ${CMAKE_BINARY_DIR}
                         --zerocounters

            COMMAND mkdir -p  ${CMAKE_BINARY_DIR}/coverage
        )
# make the initial/baseline capture a zeroed out files
execute_process( COMMAND lcov --directory ${CMAKE_BINARY_DIR}
                         --base-directory ${CMAKE_BINARY_DIR}
                         --initial
                         --capture
                         --rc lcov_branch_coverage=1
                         --rc genhtml_branch_coverage=1
                         --output-file=${CMAKE_BINARY_DIR}/base_coverage.info
        )
file(GLOB files "${CMAKE_BINARY_DIR}/bin/tests/*")

set(REPORT_FILE ${CMAKE_BINARY_DIR}/utest_report.txt)
file(WRITE ${REPORT_FILE} "")
# execute all files in bin directory, gathering the output to show it in CI
foreach(testname ${files})
    get_filename_component(test
                           ${testname}
                           NAME_WLE
            )
    message("Running ${testname}")
    execute_process(COMMAND ${testname} OUTPUT_FILE ${CMAKE_BINARY_DIR}/${test}_out.txt)

    file(READ ${CMAKE_BINARY_DIR}/${test}_out.txt CONTENTS)
    file(APPEND ${REPORT_FILE} "${CONTENTS}")
endforeach()

# generate Junit style xml output
execute_process(COMMAND ruby
    ${CMOCK_DIR}/vendor/unity/auto/parse_output.rb
                    -xml ${REPORT_FILE}
                    WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
            )

# capture data after running the tests
execute_process(
            COMMAND lcov --capture
                         --rc lcov_branch_coverage=1
                         --rc genhtml_branch_coverage=1
                         --base-directory ${CMAKE_BINARY_DIR}
                         --directory ${CMAKE_BINARY_DIR}
                         --output-file ${CMAKE_BINARY_DIR}/second_coverage.info
        )

# combile baseline results (zeros) with the one after running the tests
execute_process(
            COMMAND lcov --base-directory ${CMAKE_BINARY_DIR}
                         --directory ${CMAKE_BINARY_DIR}
                         --add-tracefile ${CMAKE_BINARY_DIR}/base_coverage.info
                         --add-tracefile ${CMAKE_BINARY_DIR}/second_coverage.info
                         --output-file ${CMAKE_BINARY_DIR}/coverage.info
                         --no-external
                         --rc lcov_branch_coverage=1
        )
execute_process(
            COMMAND genhtml --rc lcov_branch_coverage=1
                            --branch-coverage
                            --output-directory ${CMAKE_BINARY_DIR}/coverage
                                ${CMAKE_BINARY_DIR}/coverage.info
        )