t/t4018-diff-funcname.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2007 Johannes E. Schindelin
   4 #
   5
   6 test_description='Test custom diff function name patterns'
   7
   8 . ./test-lib.sh
   9
  10 LF='
  11 '
  12 cat >Beer.java <<\EOF
  13 public class Beer
  14 {
  15         int special;
  16         public static void main(String args[])
  17         {
  18                 String s=" ";
  19                 for(int x = 99; x > 0; x--)
  20                 {
  21                         System.out.print(x + " bottles of beer on the wall "
  22                                 + x + " bottles of beer\n"
  23                                 + "Take one down, pass it around, " + (x - 1)
  24                                 + " bottles of beer on the wall.\n");
  25                 }
  26                 System.out.print("Go to the store, buy some more,\n"
  27                         + "99 bottles of beer on the wall.\n");
  28         }
  29 }
  30 EOF
  31 sed 's/beer\\/beer,\\/' <Beer.java >Beer-correct.java
  32 cat >Beer.perl <<\EOF
  33 package Beer;
  34
  35 use strict;
  36 use warnings;
  37 use parent qw(Exporter);
  38 our @EXPORT_OK = qw(round);
  39
  40 sub round {
  41         my ($n) = @_;
  42         print "$n bottles of beer on the wall ";
  43         print "$n bottles of beer\n";
  44         print "Take one down, pass it around, ";
  45         $n = $n - 1;
  46         print "$n bottles of beer on the wall.\n";
  47 }
  48
  49 __END__
  50
  51 =head1 NAME
  52
  53 Beer - subroutine to output fragment of a drinking song
  54
  55 =head1 SYNOPSIS
  56
  57         use Beer qw(round);
  58
  59         sub song {
  60                 for (my $i = 99; $i > 0; $i--) {
  61                         round $i;
  62                 }
  63         }
  64
  65         song;
  66
  67 =cut
  68 EOF
  69 sed -e '
  70         s/beer\\/beer,\\/
  71         s/song;/song();/
  72 ' <Beer.perl >Beer-correct.perl
  73
  74 test_config () {
  75         git config "$1" "$2" &&
  76         test_when_finished "git config --unset $1"
  77 }
  78
  79 test_expect_funcname () {
  80         lang=${2-java}
  81         test_expect_code 1 git diff --no-index -U1 \
  82                 "Beer.$lang" "Beer-correct.$lang" >diff &&
  83         grep "^@@.*@@ $1" diff
  84 }
  85
  86 for p in bibtex cpp csharp fortran html java objc pascal perl php python ruby tex
  87 do
  88         test_expect_success "builtin $p pattern compiles" '
  89                 echo "*.java diff=$p" >.gitattributes &&
  90                 test_expect_code 1 git diff --no-index \
  91                         Beer.java Beer-correct.java 2>msg &&
  92                 ! grep fatal msg &&
  93                 ! grep error msg
  94         '
  95         test_expect_success "builtin $p wordRegex pattern compiles" '
  96                 echo "*.java diff=$p" >.gitattributes &&
  97                 test_expect_code 1 git diff --no-index --word-diff \
  98                         Beer.java Beer-correct.java 2>msg &&
  99                 ! grep fatal msg &&
 100                 ! grep error msg
 101         '
 102 done
 103
 104 test_expect_success 'default behaviour' '
 105         rm -f .gitattributes &&
 106         test_expect_funcname "public class Beer\$"
 107 '
 108
 109 test_expect_success 'set up .gitattributes declaring drivers to test' '
 110         cat >.gitattributes <<-\EOF
 111         *.java diff=java
 112         *.perl diff=perl
 113         EOF
 114 '
 115
 116 test_expect_success 'preset java pattern' '
 117         test_expect_funcname "public static void main("
 118 '
 119
 120 test_expect_success 'preset perl pattern' '
 121         test_expect_funcname "sub round {\$" perl
 122 '
 123
 124 test_expect_success 'perl pattern is not distracted by sub within POD' '
 125         test_expect_funcname "=head" perl
 126 '
 127
 128 test_expect_success 'custom pattern' '
 129         test_config diff.java.funcname "!static
 130 !String
 131 [^      ].*s.*" &&
 132         test_expect_funcname "int special;\$"
 133 '
 134
 135 test_expect_success 'last regexp must not be negated' '
 136         test_config diff.java.funcname "!static" &&
 137         test_expect_code 128 git diff --no-index Beer.java Beer-correct.java 2>msg &&
 138         grep ": Last expression must not be negated:" msg
 139 '
 140
 141 test_expect_success 'pattern which matches to end of line' '
 142         test_config diff.java.funcname "Beer\$" &&
 143         test_expect_funcname "Beer\$"
 144 '
 145
 146 test_expect_success 'alternation in pattern' '
 147         test_config diff.java.funcname "Beer$" &&
 148         test_config diff.java.xfuncname "^[     ]*((public|static).*)$" &&
 149         test_expect_funcname "public static void main("
 150 '
 151
 152 test_done