Add code coverage for phosphor-host-ipmid.

Change-Id: I940aadefdf0f78182aad1d4e586e3178e2d2fe97
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
diff --git a/test/Makefile.am b/test/Makefile.am
index 75658aa..cb5640e 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,13 +1,16 @@
-AM_CPPFLAGS = -I$(top_srcdir)
+AM_CPPFLAGS = -I$(top_srcdir) $(CODE_COVERAGE_CPPFLAGS)
+AM_CFLAGS = $(CODE_COVERAGE_CFLAGS)
 check_PROGRAMS =
 
 # Run all 'check' test programs
 TESTS = $(check_PROGRAMS)
 
 # Build/add sample_unittest to test suite
-check_PROGRAMS += sample_unittest
 sample_unittest_CPPFLAGS = -Igtest $(GTEST_CPPFLAGS) $(AM_CPPFLAGS)
-sample_unittest_CXXFLAGS = $(PTHREAD_CFLAGS)
-sample_unittest_LDFLAGS = -lgtest_main -lgtest $(PTHREAD_LIBS) $(OESDK_TESTCASE_FLAGS)
-sample_unittest_SOURCES = sample_unittest.cpp
+sample_unittest_CXXFLAGS = $(PTHREAD_CFLAGS) $(CODE_COVERAGE_CXXFLAGS) \
+			   $(CODE_COVERAGE_CFLAGS)
+sample_unittest_LDFLAGS = -lgtest_main -lgtest $(PTHREAD_LIBS) $(OESDK_TESTCASE_FLAGS) \
+   			$(CODE_COVERAGE_LDFLAGS)
+sample_unittest_SOURCES = %reldir%/sample_unittest.cpp
 sample_unittest_LDADD = $(top_builddir)/sample.o
+check_PROGRAMS += %reldir%/sample_unittest