t/t4055-diff-context.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2012 Mozilla Foundation
   4 #
   5
   6 test_description='diff.context configuration'
   7
   8 . ./test-lib.sh
   9
  10 test_expect_success 'setup' '
  11         cat >template <<-\EOF &&
  12         firstline
  13         b
  14         c
  15         d
  16         e
  17         f
  18         preline
  19         TARGET
  20         postline
  21         i
  22         j
  23         k
  24         l
  25         m
  26         n
  27         EOF
  28         sed "/TARGET/d" >x <template &&
  29         git update-index --add x &&
  30         git commit -m initial &&
  31
  32         sed "s/TARGET/ADDED/" >x <template &&
  33         git update-index --add x &&
  34         git commit -m next &&
  35
  36         sed "s/TARGET/MODIFIED/" >x <template
  37 '
  38
  39 test_expect_success 'the default number of context lines is 3' '
  40         git diff >output &&
  41         ! grep "^ d" output &&
  42         grep "^ e" output &&
  43         grep "^ j" output &&
  44         ! grep "^ k" output
  45 '
  46
  47 test_expect_success 'diff.context honored by "log"' '
  48         git log -1 -p >output &&
  49         ! grep firstline output &&
  50         git config diff.context 8 &&
  51         git log -1 -p >output &&
  52         grep "^ firstline" output
  53 '
  54
  55 test_expect_success 'The -U option overrides diff.context' '
  56         git config diff.context 8 &&
  57         git log -U4 -1 >output &&
  58         ! grep "^ firstline" output
  59 '
  60
  61 test_expect_success 'diff.context honored by "diff"' '
  62         git config diff.context 8 &&
  63         git diff >output &&
  64         grep "^ firstline" output
  65 '
  66
  67 test_expect_success 'plumbing not affected' '
  68         git config diff.context 8 &&
  69         git diff-files -p >output &&
  70         ! grep "^ firstline" output
  71 '
  72
  73 test_expect_success 'non-integer config parsing' '
  74         git config diff.context no &&
  75         test_must_fail git diff 2>output &&
  76         test_i18ngrep "bad numeric config value" output
  77 '
  78
  79 test_expect_success 'negative integer config parsing' '
  80         git config diff.context -1 &&
  81         test_must_fail git diff 2>output &&
  82         test_i18ngrep "bad config variable" output
  83 '
  84
  85 test_expect_success '-U0 is valid, so is diff.context=0' '
  86         git config diff.context 0 &&
  87         git diff >output &&
  88         grep "^-ADDED" output &&
  89         grep "^+MODIFIED" output
  90 '
  91
  92 test_done