Added coverage command

Author: PJK

CMakeLists.txt

@@ -2,18 +2,26 @@ cmake_minimum_required (VERSION 2.8)
 project(libcbor)
 include(CTest)
 
-set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -Wall -pedantic -g -ggdb --coverage -DDEBUG=true")
+set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -Wall -pedantic -g -ggdb --coverage -fprofile-arcs -ftest-coverage -DDEBUG=true")
 set(CMAKE_C_FLAGS_RELEASE "-O3 -Wall -pedantic -DNDEBUG")
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11")
 
 
-set(CMAKE_EXE_LINKER_FLAGS "-g --coverage")
+set(CMAKE_EXE_LINKER_FLAGS_DEBUG "-g --coverage -fprofile-arcs -ftest-coverage")
 
 enable_testing()
 
 set(CTEST_MEMORYCHECK_COMMAND "/usr/bin/valgrind")
 set(MEMORYCHECK_COMMAND_OPTIONS "")
 
+add_custom_target(coverage
+                  erb ${CMAKE_CURRENT_SOURCE_DIR}/test/stream_expectations.c.erb > ${CMAKE_CURRENT_SOURCE_DIR}/test/stream_expectations.c
+                  COMMAND ctest
+                  COMMAND lcov --capture --directory . --output-file coverage.info
+                  COMMAND genhtml coverage.info --output-directory coverage_html
+                  COMMAND ${CMAKE_COMMAND} -E remove ${CMAKE_CURRENT_SOURCE_DIR}/test/stream_expectations.c
+                  COMMAND echo "Coverage report ready: file://${CMAKE_CURRENT_BINARY_DIR}/coverage_html/index.html")
+
 include_directories(src)
 subdirs(src)
 subdirs(demo)

doc/source/tests.rst

@@ -19,8 +19,14 @@ Every release is tested for memory correctness. You can run these tests by passi
 Code coverage
 -------------------
 
-Every release is inspected using `GCOV/LCOV <http://ltp.sourceforge.net/coverage/lcov.php>`_. Platform-independent code should be fully covered by the test suite.
+Every release is inspected using `GCOV/LCOV <http://ltp.sourceforge.net/coverage/lcov.php>`_. Platform-independent code should be fully covered by the test suite. Simply run
 
+.. code-block:: bash
+
+  make coverage
+
+
+or alternatively run ``lcov`` by hand using
 
 .. code-block:: bash