tests: added README.rst, libfaketime as a git submodule, fixed depends

.gitmodules

+[submodule "contrib/socket_wrapper"]
+	path = contrib/socket_wrapper
+	url = git://git.samba.org/socket_wrapper.git
+[submodule "contrib/libfaketime"]
+	path = contrib/libfaketime
+	url = https://github.com/wolfcw/libfaketime.git

Makefile

@@ -29,7 +29,6 @@ $(eval $(call find_python))
 $(eval $(call find_lib,libmemcached,1.0))
 $(eval $(call find_lib,hiredis))
 $(eval $(call find_lib,socket_wrapper))
-$(eval $(call find_libfaketime))
 
 # Work around luajit on OS X
 ifeq ($(PLATFORM), Darwin)

libfaketime @ 18f5ec06

+Subproject commit 18f5ec0671705bac190787a8612fc2a58b1be1d1

contrib/libfaketime/COPYING

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help.mk

@@ -21,5 +21,4 @@ info:
 	$(info [$(HAS_libmemcached)] libmemcached (modules/memcached))
 	$(info [$(HAS_hiredis)] hiredis (modules/redis))
 	$(info [$(HAS_socket_wrapper)] socket_wrapper (lib))
-	$(info [$(HAS_libfaketime)] libfaketime (lib))
 	$(info )

platform.mk

@@ -31,13 +31,6 @@ else
     endif
 endif
 
-# Libfaketime name
-ifeq ($(PLATFORM),Darwin)
-        libfaketime_name := libfaketime.1$(LIBEXT)
-else
-        libfaketime_name := libfaketime$(LIBEXT).1
-endif
-
 # Silent compilation
 ifeq ($(V),1)
 	quiet = $($1)
@@ -132,9 +125,3 @@ define find_python
 	$(call have_lib,python)
 endef
 
-# Find libfaketime
-define find_libfaketime
-        libfaketime_LIBS := $(shell find ./contrib -name $(libfaketime_name) -print -quit 2> /dev/null)
-	$(call have_lib,libfaketime)
-endef
-

tests/README.md

-## Unit tests
-
-## Integration tests

tests/README.rst

+Unit tests
+==========
+
+The tests depend on cmocka_.
+
+.. code-block:: bash
+
+	$ make check-unit
+
+
+.. todo:: Writing tests.
+
+Integration tests
+=================
+
+The tests depend on cwrap's `socket_wrapper`_, libfaketime_ and Python.
+The libfaketime is included in ``contrib/libfaketime`` as it depends on rather latest version of it,
+it is automatically synchronised with ``make``.
+
+Execute the tests by:
+
+.. code-block:: bash
+
+	$ make check-integration
+
+.. todo:: Writing tests.
+
+.. _cmocka: https://cmocka.org/
+.. _`socket_wrapper`: https://cwrap.org/socket_wrapper.html
+.. _libfaketime: https://cwrap.org/socket_wrapper.html

tests/integration.mk

@@ -3,17 +3,28 @@
 #
 
 CWRAP_PATH := $(socket_wrapper_LIBS)
-FAKETIME_PATH := $(libfaketime_LIBS)
 
 # Targets
+libfaketime_DIR := contrib/libfaketime
+libfaketime := $(abspath $(libfaketime_DIR))/src/libfaketime$(LIBEXT).1
 
+# Platform-specific targets
 ifeq ($(PLATFORM),Darwin)
-	preload_syms := DYLD_FORCE_FLAT_NAMESPACE=1 DYLD_INSERT_LIBRARIES="$(FAKETIME_PATH):$(CWRAP_PATH)"
+	preload_syms := DYLD_FORCE_FLAT_NAMESPACE=1 DYLD_INSERT_LIBRARIES="$(libfaketime):$(CWRAP_PATH)"
 else
-	preload_syms := LD_PRELOAD="$(FAKETIME_PATH):$(CWRAP_PATH)"
+	preload_syms := LD_PRELOAD="$(libfaketime):$(CWRAP_PATH)"
 endif
 
-check-integration:
-	$(call preload_LIBS) $(preload_syms) tests/test_integration.py tests/testdata
+# Synchronize submodules
+$(libfaketime_DIR):
+	@git submodule init
+$(libfaketime_DIR)/Makefile: $(libfaketime_DIR)
+	@git submodule update
+# Build libfaketime contrib
+$(libfaketime): $(libfaketime_DIR)/Makefile
+	@$(MAKE) -C $(libfaketime_DIR)
+
+check-integration: $(libfaketime)
+	$(preload_LIBS) $(preload_syms) tests/test_integration.py tests/testdata
 
 .PHONY: check-integration

tests/tests.mk

 # Preload libraries
-preload_PATH := tests
+preload_PATH := tests:contrib/libfaketime/src
 ifeq ($(PLATFORM),Darwin)
 	preload_LIBS := @DYLD_FORCE_FLAT_NAMESPACE=1 \
 	                DYLD_LIBRARY_PATH="$(preload_PATH):${DYLD_LIBRARY_PATH}"
@@ -10,14 +10,19 @@ endif
 # Unit tests
 ifeq ($(HAS_cmocka), yes)
 include tests/unit.mk
+else
+$(warning cmocka not found, skipping unit tests)
+endif
+
 # Integration tests
-ifeq ($(HAS_python), yes)
+ifeq ($(HAS_python)|$(HAS_socket_wrapper), yes|yes)
 include tests/integration.mk
-endif # HAS_python
-endif # HAS_cmocka
+else
+$(warning python or socket_wrapper not found, skipping integration tests)
+endif
 
 # Targets
 tests: check-unit check-integration
-tests-clean: $(foreach test,$(tests_BIN),$(test)-clean) libmock_calls-clean _test_integration-clean
+tests-clean: $(foreach test,$(tests_BIN),$(test)-clean)
 
 .PHONY: tests tests-clean

tests/unit.mk

@@ -26,6 +26,7 @@ tests_LIBS :=  $(libkres_TARGET) $(libkres_LIBS) $(cmocka_LIBS)
 
 # Make test binaries
 define make_test
+$(1)_CFLAGS := -Wno-deprecated-declarations
 $(1)_SOURCES := tests/$(1).c
 $(1)_LIBS := $(tests_LIBS)
 $(1)_DEPEND := $(tests_DEPEND)