make the regression tests independent of local time zone in which they are run

README.rst

@@ -372,6 +372,10 @@ reproduces the same value that was present in the log, while
 varnishncsa performs floating point conversions, with some loss of
 precision.
 
+The date/time formatters ``%t`` and ``%{X}t`` assume the local time
+zone, as set in varnishevent's environment. You can control the output
+by setting the ``TZ`` environment variable.
+
 REQUIREMENTS
 ============
 

src/test/regress.sh

@@ -4,6 +4,10 @@ echo
 echo "TEST: $0"
 echo '... testing output and log against known checksums'
 
+# Ensure that the local time date formatters produce the same output
+# wherever the test is run.
+export TZ=UTC
+
 LOG=test.log
 OUT=output.log
 
@@ -12,7 +16,7 @@ rm -f $LOG $OUT
 ../varnishevent -f varnishevent.conf -r varnish-4.1.0-doc.log -w $OUT -v
 
 CKSUM=$( cksum $OUT )
-if [ "$CKSUM" != "1046111307 442153 $OUT" ]; then
+if [ "$CKSUM" != "54743924 442153 $OUT" ]; then
     echo "ERROR: Regression test log output incorrect cksum: $CKSUM"
     exit 1
 fi

src/test/vslarg.sh

@@ -8,10 +8,14 @@ IN=varnish-4.1.0-doc.log
 CONF=varnishevent.conf
 LOG=/dev/null
 
+# Ensure that the local time date formatters produce the same output
+# wherever the test is run.
+export TZ=UTC
+
 echo "... no VSL args"
 CKSUM=$( ../varnishevent -r ${IN} -f ${CONF} -l ${LOG} | cksum)
 
-if [ "$CKSUM" != '2861633151 442191' ]; then
+if [ "$CKSUM" != '2542287168 442191' ]; then
     echo "ERROR: no VSL args unexpected cksum: $CKSUM"
     exit 1
 fi
@@ -20,7 +24,7 @@ echo "... -g vxid"
 CKSUM=$( ../varnishevent -g vxid -r ${IN} -f ${CONF} -l ${LOG} | cksum)
 
 # Same as default (no -g arg)
-if [ "$CKSUM" != '2861633151 442191' ]; then
+if [ "$CKSUM" != '2542287168 442191' ]; then
     echo "ERROR: -g vxid unexpected cksum: $CKSUM"
     exit 1
 fi
@@ -28,7 +32,7 @@ fi
 echo "... -g request"
 CKSUM=$( ../varnishevent -g request -r ${IN} -f ${CONF} -l ${LOG} | cksum)
 
-if [ "$CKSUM" != '519771253 443186' ]; then
+if [ "$CKSUM" != '3970366484 443186' ]; then
     echo "ERROR: -g request unexpected cksum: $CKSUM"
     exit 1
 fi
@@ -64,7 +68,7 @@ fi
 echo "... -q query"
 CKSUM=$( ../varnishevent -q 'ReqURL ~ "_static"' -r ${IN} -l ${LOG} | cksum)
 
-if [ "$CKSUM" != '3256944209 830' ]; then
+if [ "$CKSUM" != '805680033 830' ]; then
     echo "ERROR: -q query unexpected cksum: $CKSUM"
     exit 1
 fi
@@ -79,7 +83,7 @@ fi
 echo "... -C"
 CKSUM=$( ../varnishevent -C -q 'ReqURL ~ "_STATIC"' -r ${IN} -l ${LOG} | cksum)
 
-if [ "$CKSUM" != '3256944209 830' ]; then
+if [ "$CKSUM" != '805680033 830' ]; then
     echo "ERROR: -q query unexpected cksum: $CKSUM"
     exit 1
 fi