CMK-450: Make unit tests for Livestatus & Microcore possible

For now, this contains just a simple test for a header-only function, but
the rest of the machinery is there when you need it.

Fun fact: This test immediately uncovered a (harmless) bug, which will be
fixed in an upcoming commit.

Change-Id: I65686642e660e1aa15255fba8bc5f7de8caaf923

Makefile

@@ -106,7 +106,8 @@ FILES_TO_FORMAT    := $(wildcard $(addprefix agents/,*.cc *.c *.h)) \
                       $(wildcard $(addprefix livestatus/src/,*.cc *.h)) \
                       $(wildcard $(addprefix bin/,*.cc *.c *.h)) \
                       $(wildcard $(addprefix enterprise/core/src/,*.cc *.h)) \
-                      $(wildcard $(addprefix enterprise/core/src/checkhelper/,*.cc *.h))
+                      $(wildcard $(addprefix enterprise/core/src/checkhelper/,*.cc *.h)) \
+                      $(wildcard $(addprefix enterprise/core/src/test/,*.cc *.h))
 
 WERKS              := $(wildcard .werks/[0-9]*)
 

livestatus/iwyu-mappings/check_mk.imp

@@ -23,6 +23,10 @@
   { include: ["<pcap/bpf.h>", private, "<pcap.h>", public ] },
   { include: ["<pcap/dlt.h>", private, "<pcap.h>", public ] },
   { include: ["<pcap/pcap.h>", private, "<pcap.h>", public ] },
+  { include: ['@"gmock/.*"', private, '"gmock/gmock.h"', public ] },
+  { include: ["@<gmock/.*>", private, "<gmock/gmock.h>", public ] },
+  { include: ['@"gtest/.*"', private, '"gtest/gtest.h"', public ] },
+  { include: ["@<gtest/.*>", private, "<gtest/gtest.h>", public ] },
   { symbol: ["int32_t", private, "<stdint.h>", public ] },
   { symbol: ["std::ofstream", private, "<fstream>", public ] },
   { symbol: ["std::ostringstream", private, "<sstream>", public ] },

omd/Makefile.omd

@@ -97,3 +97,8 @@ check-python-modules:
 # perl #########################################################################
 
 PACKAGE_BOOST_DESTDIR := $(PACKAGE_BASE)/boost/destdir
+
+
+# googletest ###################################################################
+
+PACKAGE_GOOGLETEST_DESTDIR := $(PACKAGE_BASE)/googletest/destdir

omd/packages/googletest/.gitignore

@@ -0,0 +1,2 @@
+destdir/
+googletest-??????????/

omd/packages/googletest/Makefile

@@ -0,0 +1,33 @@
+include ../../Makefile.omd
+
+# tar file generated by cloning https://github.com/google/googletest and doing:
+# ( VERSION=0048647619; git archive --prefix=googletest-$VERSION/ -o ~/git/check_mk/omd/packages/googletest/googletest-$VERSION.tar.gz $VERSION )
+
+NAME    := googletest
+VERSION := 0048647619
+DIR     := $(NAME)-$(VERSION)
+
+.PHONY: build install skel clean
+
+# The rules below are not perfect, but good enough for now...
+build: $(DIR)/Makefile
+	$(MAKE) -C $(DIR)
+	mkdir -p $(PACKAGE_GOOGLETEST_DESTDIR)/lib
+# We do not ship the headers and libraries, we just need them at a known
+# location for testing.
+	cp -au $(DIR)/googletest/include $(DIR)/googlemock/include $(PACKAGE_GOOGLETEST_DESTDIR)
+	cp -au $(DIR)/googletest/lib/.libs/lib*.a $(DIR)/googlemock/lib/.libs/lib*.a $(PACKAGE_GOOGLETEST_DESTDIR)/lib
+
+$(DIR)/Makefile.in: $(DIR).tar.gz
+	tar xzf $(DIR).tar.gz
+	cd $(DIR) && autoreconf -i
+
+$(DIR)/Makefile: $(DIR)/Makefile.in
+	cd $(DIR) && ./configure --disable-shared
+
+install:
+
+skel:
+
+clean:
+	rm -rf $(DIR) $(PACKAGE_GOOGLETEST_DESTDIR)