[tests] Add 'coverage' make target

README.rst

@@ -45,3 +45,4 @@ Extra make targets
 -----------
 
 * check: run tests directly inside build tree
+* coverage: generate code coverage report

connman-qt.pro

@@ -6,6 +6,9 @@ check.depends = all
 check.CONFIG = phony recursive
 QMAKE_EXTRA_TARGETS += check
 
+# Adds 'coverage' target
+include(coverage.pri)
+
 # CONFIG flag to disable qml plugin
 !noplugin {
     SUBDIRS += plugin

coverage.pri

@@ -0,0 +1,20 @@
+COVERAGE_EXCLUDES = \
+    /usr/* \
+    */moc_*.cpp \
+    */*.moc \
+    */qrc_*.cpp \
+    /build/* \
+    /tests/* \
+
+coverage.CONFIG = phony
+coverage.commands = '\
+        echo "--- coverage: extracting info" \
+        && lcov -c -o lcov.info -d . \
+        && echo "--- coverage: excluding $$join(COVERAGE_EXCLUDES, ", ")" \
+        && lcov -r lcov.info $$join(COVERAGE_EXCLUDES, "' '", "'", "'") -o lcov.info \
+        && echo "--- coverage: generating html" \
+        && genhtml -o coverage lcov.info --demangle-cpp \
+        && echo -e "--- coverage: done\\n\\n\\tfile://$${OUT_PWD}/coverage/index.html\\n" \
+        '
+
+QMAKE_EXTRA_TARGETS += coverage