t/t4024-diff-optimize-common.sh

   1 #!/bin/sh
   2
   3 test_description='common tail optimization'
   4
   5 . ./test-lib.sh
   6
   7 z=zzzzzzzz ;# 8
   8 z="$z$z$z$z$z$z$z$z" ;# 64
   9 z="$z$z$z$z$z$z$z$z" ;# 512
  10 z="$z$z$z$z" ;# 2048
  11 z2047=$(expr "$z" : '.\(.*\)') ; #2047
  12
  13 test_expect_success setup '
  14
  15         echo "a$z2047" >file-a &&
  16         echo "b" >file-b &&
  17         echo "$z2047" >>file-b &&
  18         echo "c$z2047" | tr -d "\012" >file-c &&
  19         echo "d" >file-d &&
  20         echo "$z2047" | tr -d "\012" >>file-d &&
  21
  22         git add file-a file-b file-c file-d &&
  23
  24         echo "A$z2047" >file-a &&
  25         echo "B" >file-b &&
  26         echo "$z2047" >>file-b &&
  27         echo "C$z2047" | tr -d "\012" >file-c &&
  28         echo "D" >file-d &&
  29         echo "$z2047" | tr -d "\012" >>file-d
  30
  31 '
  32
  33 cat >expect <<\EOF
  34 diff --git a/file-a b/file-a
  35 --- a/file-a
  36 +++ b/file-a
  37 @@ -1 +1 @@
  38 -aZ
  39 +AZ
  40 diff --git a/file-b b/file-b
  41 --- a/file-b
  42 +++ b/file-b
  43 @@ -1 +1 @@
  44 -b
  45 +B
  46 diff --git a/file-c b/file-c
  47 --- a/file-c
  48 +++ b/file-c
  49 @@ -1 +1 @@
  50 -cZ
  51 \ No newline at end of file
  52 +CZ
  53 \ No newline at end of file
  54 diff --git a/file-d b/file-d
  55 --- a/file-d
  56 +++ b/file-d
  57 @@ -1 +1 @@
  58 -d
  59 +D
  60 EOF
  61
  62 test_expect_success 'diff -U0' '
  63
  64         git diff -U0 | sed -e "/^index/d" -e "s/$z2047/Z/g" >actual &&
  65         diff -u expect actual
  66
  67 '
  68
  69 test_done