From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 12 Jun 2013 03:23:28 +0000 (-0700)
Subject: tests: zgrep-context assumes grep knows context
X-Git-Tag: v1.7~56
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=a963e3a42d6da62ef6d017f28ded08534ad4c805;p=debian%2Fgzip

tests: zgrep-context assumes grep knows context

* tests/Makefile.am (TESTS_ENVIRONMENT): Pass GREP too.
* tests/zgrep-context: Check that the underlying grep supports
context options.  Problem reported by Steven M. Schweda in
<http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00010.html>.
---

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 53bfffa..37c7b8c 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -79,6 +79,7 @@ TESTS_ENVIRONMENT =				\
   srcdir='$(srcdir)'; export srcdir;					\
   top_srcdir='$(top_srcdir)'; export top_srcdir;			\
   CC='$(CC)'; export CC;						\
+  GREP='$(GREP)'; export GREP;						\
   GZIP_TEST_NAME=`echo $$tst|sed 's,^\./,,;s,/,-,g'`; export GZIP_TEST_NAME; \
   MAKE=$(MAKE); export MAKE;						\
   PACKAGE_BUGREPORT='$(PACKAGE_BUGREPORT)'; export PACKAGE_BUGREPORT;	\
diff --git a/tests/zgrep-context b/tests/zgrep-context
index f2e26d2..a3871eb 100755
--- a/tests/zgrep-context
+++ b/tests/zgrep-context
@@ -34,6 +34,12 @@ seq 40 > in || framework_failure_
 gzip < in > in.gz || framework_failure_
 seq 2 32 > exp || framework_failure_
 
+: ${GREP=grep}
+$GREP -15 17 - < in > out && compare exp out || {
+  echo >&2 "$0: $GREP does not support context options; skipping this test"
+  exit 77
+}
+
 fail=0
 zgrep -15 17 - < in.gz > out || fail=1
 compare exp out || fail=1