t/t4125-apply-ws-fuzz.sh

   1 #!/bin/sh
   2
   3 test_description='applying patch that has broken whitespaces in context'
   4
   5 . ./test-lib.sh
   6
   7 test_expect_success setup '
   8
   9         >file &&
  10         git add file &&
  11
  12         # file-0 is full of whitespace breakages
  13         printf "%s \n" a bb c d eeee f ggg h >file-0 &&
  14
  15         # patch-0 creates a whitespace broken file
  16         cat file-0 >file &&
  17         git diff >patch-0 &&
  18         git add file &&
  19
  20         # file-1 is still full of whitespace breakages,
  21         # but has one line updated, without fixing any
  22         # whitespaces.
  23         # patch-1 records that change.
  24         sed -e "s/d/D/" file-0 >file-1 &&
  25         cat file-1 >file &&
  26         git diff >patch-1 &&
  27
  28         # patch-all is the effect of both patch-0 and patch-1
  29         >file &&
  30         git add file &&
  31         cat file-1 >file &&
  32         git diff >patch-all &&
  33
  34         # patch-2 is the same as patch-1 but is based
  35         # on a version that already has whitespace fixed,
  36         # and does not introduce whitespace breakages.
  37         sed -e "s/ \$//" patch-1 >patch-2 &&
  38
  39         # If all whitespace breakages are fixed the contents
  40         # should look like file-fixed
  41         sed -e "s/ \$//" file-1 >file-fixed
  42
  43 '
  44
  45 test_expect_success nofix '
  46
  47         >file &&
  48         git add file &&
  49
  50         # Baseline.  Applying without fixing any whitespace
  51         # breakages.
  52         git apply --whitespace=nowarn patch-0 &&
  53         git apply --whitespace=nowarn patch-1 &&
  54
  55         # The result should obviously match.
  56         test_cmp file-1 file
  57 '
  58
  59 test_expect_success 'withfix (forward)' '
  60
  61         >file &&
  62         git add file &&
  63
  64         # The first application will munge the context lines
  65         # the second patch depends on.  We should be able to
  66         # adjust and still apply.
  67         git apply --whitespace=fix patch-0 &&
  68         git apply --whitespace=fix patch-1 &&
  69
  70         test_cmp file-fixed file
  71 '
  72
  73 test_expect_success 'withfix (backward)' '
  74
  75         >file &&
  76         git add file &&
  77
  78         # Now we have a whitespace breakages on our side.
  79         git apply --whitespace=nowarn patch-0 &&
  80
  81         # And somebody sends in a patch based on image
  82         # with whitespace already fixed.
  83         git apply --whitespace=fix patch-2 &&
  84
  85         # The result should accept the whitespace fixed
  86         # postimage.  But the line with "h" is beyond context
  87         # horizon and left unfixed.
  88
  89         sed -e /h/d file-fixed >fixed-head &&
  90         sed -e /h/d file >file-head &&
  91         test_cmp fixed-head file-head &&
  92
  93         sed -n -e /h/p file-fixed >fixed-tail &&
  94         sed -n -e /h/p file >file-tail &&
  95
  96         ! test_cmp fixed-tail file-tail
  97
  98 '
  99
 100 test_done