t/t4032-diff-inter-hunk-context.sh

   1 #!/bin/sh
   2
   3 test_description='diff hunk fusing'
   4
   5 . ./test-lib.sh
   6
   7 f() {
   8         echo $1
   9         i=1
  10         while test $i -le $2
  11         do
  12                 echo $i
  13                 i=$(expr $i + 1)
  14         done
  15         echo $3
  16 }
  17
  18 t() {
  19         case $# in
  20         4) hunks=$4; cmd="diff -U$3";;
  21         5) hunks=$5; cmd="diff -U$3 --inter-hunk-context=$4";;
  22         esac
  23         label="$cmd, $1 common $2"
  24         file=f$1
  25         expected=expected.$file.$3.$hunks
  26
  27         if ! test -f $file
  28         then
  29                 f A $1 B >$file
  30                 git add $file
  31                 git commit -q -m. $file
  32                 f X $1 Y >$file
  33         fi
  34
  35         test_expect_success "$label: count hunks ($hunks)" "
  36                 test $(git $cmd $file | grep '^@@ ' | wc -l) = $hunks
  37         "
  38
  39         test -f $expected &&
  40         test_expect_success "$label: check output" "
  41                 git $cmd $file | grep -v '^index ' >actual &&
  42                 test_cmp $expected actual
  43         "
  44 }
  45
  46 cat <<EOF >expected.f1.0.1 || exit 1
  47 diff --git a/f1 b/f1
  48 --- a/f1
  49 +++ b/f1
  50 @@ -1,3 +1,3 @@
  51 -A
  52 +X
  53  1
  54 -B
  55 +Y
  56 EOF
  57
  58 cat <<EOF >expected.f1.0.2 || exit 1
  59 diff --git a/f1 b/f1
  60 --- a/f1
  61 +++ b/f1
  62 @@ -1 +1 @@
  63 -A
  64 +X
  65 @@ -3 +3 @@ A
  66 -B
  67 +Y
  68 EOF
  69
  70 # common lines  ctx     intrctx hunks
  71 t 1 line        0               2
  72 t 1 line        0       0       2
  73 t 1 line        0       1       1
  74 t 1 line        0       2       1
  75 t 1 line        1               1
  76
  77 t 2 lines       0               2
  78 t 2 lines       0       0       2
  79 t 2 lines       0       1       2
  80 t 2 lines       0       2       1
  81 t 2 lines       1               1
  82
  83 t 3 lines       1               2
  84 t 3 lines       1       0       2
  85 t 3 lines       1       1       1
  86 t 3 lines       1       2       1
  87
  88 t 9 lines       3               2
  89 t 9 lines       3       2       2
  90 t 9 lines       3       3       1
  91
  92 test_done