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         for l in a bb c d eeee f ggg h
  14         do
  15                 echo "$l "
  16         done >file-0 &&
  17
  18         # patch-0 creates a whitespace broken file
  19         cat file-0 >file &&
  20         git diff >patch-0 &&
  21         git add file &&
  22
  23         # file-1 is still full of whitespace breakages,
  24         # but has one line updated, without fixing any
  25         # whitespaces.
  26         # patch-1 records that change.
  27         sed -e "s/d/D/" file-0 >file-1 &&
  28         cat file-1 >file &&
  29         git diff >patch-1 &&
  30
  31         # patch-all is the effect of both patch-0 and patch-1
  32         >file &&
  33         git add file &&
  34         cat file-1 >file &&
  35         git diff >patch-all &&
  36
  37         # patch-2 is the same as patch-1 but is based
  38         # on a version that already has whitespace fixed,
  39         # and does not introduce whitespace breakages.
  40         sed -e "s/ $//" patch-1 >patch-2 &&
  41
  42         # If all whitespace breakages are fixed the contents
  43         # should look like file-fixed
  44         sed -e "s/ $//" file-1 >file-fixed
  45
  46 '
  47
  48 test_expect_success nofix '
  49
  50         >file &&
  51         git add file &&
  52
  53         # Baseline.  Applying without fixing any whitespace
  54         # breakages.
  55         git apply --whitespace=nowarn patch-0 &&
  56         git apply --whitespace=nowarn patch-1 &&
  57
  58         # The result should obviously match.
  59         diff -u file-1 file
  60 '
  61
  62 test_expect_success 'withfix (forward)' '
  63
  64         >file &&
  65         git add file &&
  66
  67         # The first application will munge the context lines
  68         # the second patch depends on.  We should be able to
  69         # adjust and still apply.
  70         git apply --whitespace=fix patch-0 &&
  71         git apply --whitespace=fix patch-1 &&
  72
  73         diff -u file-fixed file
  74 '
  75
  76 test_expect_success 'withfix (backward)' '
  77
  78         >file &&
  79         git add file &&
  80
  81         # Now we have a whitespace breakages on our side.
  82         git apply --whitespace=nowarn patch-0 &&
  83
  84         # And somebody sends in a patch based on image
  85         # with whitespace already fixed.
  86         git apply --whitespace=fix patch-2 &&
  87
  88         # The result should accept the whitespace fixed
  89         # postimage.  But the line with "h" is beyond context
  90         # horizon and left unfixed.
  91
  92         sed -e /h/d file-fixed >fixed-head &&
  93         sed -e /h/d file >file-head &&
  94         diff -u fixed-head file-head &&
  95
  96         sed -n -e /h/p file-fixed >fixed-tail &&
  97         sed -n -e /h/p file >file-tail &&
  98
  99         ! diff -u fixed-tail file-tail
 100
 101 '
 102
 103 test_done