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 finalround);
  39
  40 sub other; # forward declaration
  41
  42 # hello
  43
  44 sub round {
  45         my ($n) = @_;
  46         print "$n bottles of beer on the wall ";
  47         print "$n bottles of beer\n";
  48         print "Take one down, pass it around, ";
  49         $n = $n - 1;
  50         print "$n bottles of beer on the wall.\n";
  51 }
  52
  53 sub finalround
  54 {
  55         print "Go to the store, buy some more\n";
  56         print "99 bottles of beer on the wall.\n");
  57 }
  58
  59 __END__
  60
  61 =head1 NAME
  62
  63 Beer - subroutine to output fragment of a drinking song
  64
  65 =head1 SYNOPSIS
  66
  67         use Beer qw(round finalround);
  68
  69         sub song {
  70                 for (my $i = 99; $i > 0; $i--) {
  71                         round $i;
  72                 }
  73                 finalround;
  74         }
  75
  76         song;
  77
  78 =cut
  79 EOF
  80 sed -e '
  81         s/hello/goodbye/
  82         s/beer\\/beer,\\/
  83         s/more\\/more,\\/
  84         s/song;/song();/
  85 ' <Beer.perl >Beer-correct.perl
  86
  87 test_config () {
  88         git config "$1" "$2" &&
  89         test_when_finished "git config --unset $1"
  90 }
  91
  92 test_expect_funcname () {
  93         lang=${2-java}
  94         test_expect_code 1 git diff --no-index -U1 \
  95                 "Beer.$lang" "Beer-correct.$lang" >diff &&
  96         grep "^@@.*@@ $1" diff
  97 }
  98
  99 for p in bibtex cpp csharp fortran html java objc pascal perl php python ruby tex
 100 do
 101         test_expect_success "builtin $p pattern compiles" '
 102                 echo "*.java diff=$p" >.gitattributes &&
 103                 test_expect_code 1 git diff --no-index \
 104                         Beer.java Beer-correct.java 2>msg &&
 105                 ! grep fatal msg &&
 106                 ! grep error msg
 107         '
 108         test_expect_success "builtin $p wordRegex pattern compiles" '
 109                 echo "*.java diff=$p" >.gitattributes &&
 110                 test_expect_code 1 git diff --no-index --word-diff \
 111                         Beer.java Beer-correct.java 2>msg &&
 112                 ! grep fatal msg &&
 113                 ! grep error msg
 114         '
 115 done
 116
 117 test_expect_success 'default behaviour' '
 118         rm -f .gitattributes &&
 119         test_expect_funcname "public class Beer\$"
 120 '
 121
 122 test_expect_success 'set up .gitattributes declaring drivers to test' '
 123         cat >.gitattributes <<-\EOF
 124         *.java diff=java
 125         *.perl diff=perl
 126         EOF
 127 '
 128
 129 test_expect_success 'preset java pattern' '
 130         test_expect_funcname "public static void main("
 131 '
 132
 133 test_expect_success 'preset perl pattern' '
 134         test_expect_funcname "sub round {\$" perl
 135 '
 136
 137 test_expect_success 'perl pattern accepts K&R style brace placement, too' '
 138         test_expect_funcname "sub finalround\$" perl
 139 '
 140
 141 test_expect_success 'perl pattern is not distracted by sub within POD' '
 142         test_expect_funcname "=head" perl
 143 '
 144
 145 test_expect_success 'perl pattern gets full line of POD header' '
 146         test_expect_funcname "=head1 SYNOPSIS\$" perl
 147 '
 148
 149 test_expect_success 'perl pattern is not distracted by forward declaration' '
 150         test_expect_funcname "package Beer;\$" perl
 151 '
 152
 153 test_expect_success 'custom pattern' '
 154         test_config diff.java.funcname "!static
 155 !String
 156 [^      ].*s.*" &&
 157         test_expect_funcname "int special;\$"
 158 '
 159
 160 test_expect_success 'last regexp must not be negated' '
 161         test_config diff.java.funcname "!static" &&
 162         test_expect_code 128 git diff --no-index Beer.java Beer-correct.java 2>msg &&
 163         grep ": Last expression must not be negated:" msg
 164 '
 165
 166 test_expect_success 'pattern which matches to end of line' '
 167         test_config diff.java.funcname "Beer\$" &&
 168         test_expect_funcname "Beer\$"
 169 '
 170
 171 test_expect_success 'alternation in pattern' '
 172         test_config diff.java.funcname "Beer$" &&
 173         test_config diff.java.xfuncname "^[     ]*((public|static).*)$" &&
 174         test_expect_funcname "public static void main("
 175 '
 176
 177 test_done