Check array for NULL, fix gcov call

Author: za-arthur

.dockerignore

@@ -3,3 +3,9 @@ img
 travis
 .git
 .travis.yml
+
+*.gcno
+*.gcda
+*.gcov
+*.so
+*.o

src/rum_arr_utils.c

@@ -51,7 +51,11 @@
 
 #define CHECKARRVALID(x) \
 	do { \
-		if (x) { \
+		if (x == NULL) \
+			ereport(ERROR, \
+					(errcode(ERRCODE_NULL_VALUE_NOT_ALLOWED), \
+					 errmsg("array must not be NULL"))); \
+		else if (x) { \
 			if (ARR_NDIM(x) != NDIM && ARR_NDIM(x) != 0) \
 				ereport(ERROR, \
 						(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR), \

travis/run_tests.sh

@@ -99,7 +99,7 @@ if test -f regression.diffs; then cat regression.diffs; fi
 if [ $status -ne 0 ]; then exit 1; fi
 
 # generate *.gcov files
-gcov *.c *.h
+gcov src/*.c src/*.h
 
 
 set +ux