From 885ed372d09f68806b17fc8fd0ac13a46636aeb2 Mon Sep 17 00:00:00 2001
From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 19 Dec 2007 16:21:30 -0800
Subject: [PATCH] t4024: fix test script to use simpler sed pattern
The earlier test stripped away expected number of 'z' but the output
would have been very hard to read once somebody broke the common tail
optimization. Instead, count the number of 'z' and show it, to help
diagnosing the problem better in the future.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
t/t4024-diff-optimize-common.sh | 158 +++++++++++++++++++++++++-------
1 file changed, 123 insertions(+), 35 deletions(-)
diff --git a/t/t4024-diff-optimize-common.sh b/t/t4024-diff-optimize-common.sh
index 20fe87b7dd4..3c66102f7ad 100755
--- a/t/t4024-diff-optimize-common.sh
+++ b/t/t4024-diff-optimize-common.sh
@@ -10,58 +10,146 @@ z="$z$z$z$z$z$z$z$z" ;# 512
z="$z$z$z$z" ;# 2048
z2047=$(expr "$z" : '.\(.*\)') ; #2047
-test_expect_success setup '
+x=zzzzzzzzzz ;# 10
+y="$x$x$x$x$x$x$x$x$x$x" ;# 100
+z="$y$y$y$y$y$y$y$y$y$y" ;# 1000
+z1000=$z
+z100=$y
+z10=$x
- echo "a$z2047" >file-a &&
- echo "b" >file-b &&
- echo "$z2047" >>file-b &&
- echo "c$z2047" | tr -d "\012" >file-c &&
- echo "d" >file-d &&
- echo "$z2047" | tr -d "\012" >>file-d &&
+zs() {
+ count="$1"
+ while test "$count" -ge 1000
+ do
+ count=$(($count - 1000))
+ printf "%s" $z1000
+ done
+ while test "$count" -ge 100
+ do
+ count=$(($count - 100))
+ printf "%s" $z100
+ done
+ while test "$count" -ge 10
+ do
+ count=$(($count - 10))
+ printf "%s" $z10
+ done
+ while test "$count" -ge 1
+ do
+ count=$(($count - 1))
+ printf "z"
+ done
+}
- git add file-a file-b file-c file-d &&
+zc () {
+ sed -e "/^index/d" \
+ -e "s/$z1000/Q/g" \
+ -e "s/QQQQQQQQQ/Z9000/g" \
+ -e "s/QQQQQQQQ/Z8000/g" \
+ -e "s/QQQQQQQ/Z7000/g" \
+ -e "s/QQQQQQ/Z6000/g" \
+ -e "s/QQQQQ/Z5000/g" \
+ -e "s/QQQQ/Z4000/g" \
+ -e "s/QQQ/Z3000/g" \
+ -e "s/QQ/Z2000/g" \
+ -e "s/Q/Z1000/g" \
+ -e "s/$z100/Q/g" \
+ -e "s/QQQQQQQQQ/Z900/g" \
+ -e "s/QQQQQQQQ/Z800/g" \
+ -e "s/QQQQQQQ/Z700/g" \
+ -e "s/QQQQQQ/Z600/g" \
+ -e "s/QQQQQ/Z500/g" \
+ -e "s/QQQQ/Z400/g" \
+ -e "s/QQQ/Z300/g" \
+ -e "s/QQ/Z200/g" \
+ -e "s/Q/Z100/g" \
+ -e "s/000Z//g" \
+ -e "s/$z10/Q/g" \
+ -e "s/QQQQQQQQQ/Z90/g" \
+ -e "s/QQQQQQQQ/Z80/g" \
+ -e "s/QQQQQQQ/Z70/g" \
+ -e "s/QQQQQQ/Z60/g" \
+ -e "s/QQQQQ/Z50/g" \
+ -e "s/QQQQ/Z40/g" \
+ -e "s/QQQ/Z30/g" \
+ -e "s/QQ/Z20/g" \
+ -e "s/Q/Z10/g" \
+ -e "s/00Z//g" \
+ -e "s/z/Q/g" \
+ -e "s/QQQQQQQQQ/Z9/g" \
+ -e "s/QQQQQQQQ/Z8/g" \
+ -e "s/QQQQQQQ/Z7/g" \
+ -e "s/QQQQQQ/Z6/g" \
+ -e "s/QQQQQ/Z5/g" \
+ -e "s/QQQQ/Z4/g" \
+ -e "s/QQQ/Z3/g" \
+ -e "s/QQ/Z2/g" \
+ -e "s/Q/Z1/g" \
+ -e "s/0Z//g" \
+ ;
+}
- echo "A$z2047" >file-a &&
- echo "B" >file-b &&
- echo "$z2047" >>file-b &&
- echo "C$z2047" | tr -d "\012" >file-c &&
- echo "D" >file-d &&
- echo "$z2047" | tr -d "\012" >>file-d
-
-'
-
-cat >expect <<\EOF
-diff --git a/file-a b/file-a
---- a/file-a
-+++ b/file-a
+expect_pattern () {
+ cnt="$1"
+ cat <<EOF
+diff --git a/file-a$cnt b/file-a$cnt
+--- a/file-a$cnt
++++ b/file-a$cnt
@@ -1 +1 @@
--aZ
-+AZ
-diff --git a/file-b b/file-b
---- a/file-b
-+++ b/file-b
+-Z${cnt}a
++Z${cnt}A
+diff --git a/file-b$cnt b/file-b$cnt
+--- a/file-b$cnt
++++ b/file-b$cnt
@@ -1 +1 @@
-b
+B
-diff --git a/file-c b/file-c
---- a/file-c
-+++ b/file-c
+diff --git a/file-c$cnt b/file-c$cnt
+--- a/file-c$cnt
++++ b/file-c$cnt
@@ -1 +1 @@
--cZ
+-cZ$cnt
\ No newline at end of file
-+CZ
++CZ$cnt
\ No newline at end of file
-diff --git a/file-d b/file-d
---- a/file-d
-+++ b/file-d
+diff --git a/file-d$cnt b/file-d$cnt
+--- a/file-d$cnt
++++ b/file-d$cnt
@@ -1 +1 @@
-d
+D
EOF
+}
+
+sample='1023 1024 1025 2047 4095'
+
+test_expect_success setup '
+
+ for n in $sample
+ do
+ ( zs $n ; echo a ) >file-a$n &&
+ ( echo b; zs $n; echo ) >file-b$n &&
+ ( printf c; zs $n ) >file-c$n &&
+ ( echo d; zs $n ) >file-d$n &&
+
+ git add file-a$n file-b$n file-c$n file-d$n &&
+
+ ( zs $n ; echo A ) >file-a$n &&
+ ( echo B; zs $n; echo ) >file-b$n &&
+ ( printf C; zs $n ) >file-c$n &&
+ ( echo D; zs $n ) >file-d$n &&
+
+ expect_pattern $n || break
+
+ done >expect
+'
test_expect_success 'diff -U0' '
- git diff -U0 | sed -e "/^index/d" -e "s/$z2047/Z/g" >actual &&
+ for n in $sample
+ do
+ git diff -U0 file-?$n
+ done | zc >actual &&
diff -u expect actual
'