Re: [PATCH] tests: Introduce test_seq

[Junio C Hamano <gitster@xxxxxxxxx>]

Tentatively I'll queue this one on top, but I am tempted to squash
this in before merging the topic down.

-- >8 --
Subject: [PATCH] fixup! tests: Introduce test_seq

Complex chains of && and || are harder to read when used as
replacement for if/else statements, but it is easy to rewrite it
with a case/esac in this case.

Avoid using unnecessary variables $first and $last.

Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
 t/test-lib-functions.sh | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
index c8b4ae3..7dc70eb 100644
--- a/t/test-lib-functions.sh
+++ b/t/test-lib-functions.sh
@@ -532,7 +532,7 @@ test_cmp() {
 
 # Print a sequence of numbers or letters in increasing order.  This is
 # similar to GNU seq(1), but the latter might not be available
-# everywhere.  It may be used like:
+# everywhere (and does not do letters).  It may be used like:
 #
 #	for i in `test_seq 100`; do
 #		for j in `test_seq 10 20`; do
@@ -543,11 +543,12 @@ test_cmp() {
 #	done
 
 test_seq () {
-	test $# = 2 && { first=$1; shift; } || first=1
-	test $# = 1 ||
-	error "bug in the test script: not 1 or 2 parameters to test_seq"
-	last=$1
-	"$PERL_PATH" -le 'print for "$ARGV[0]".."$ARGV[1]"' "$first" "$last"
+	case $# in
+	1)	set 1 "$@" ;;
+	2)	;;
+	*)	error "bug in the test script: not 1 or 2 parameters to test_seq" ;;
+	esac
+	"$PERL_PATH" -le 'print for $ARGV[0]..$ARGV[1]' "$@"
 }
 
 # This function can be used to schedule some commands to be run
-- 
1.7.12.rc1.50.g3df08cf

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