1#!./perl -w 2 3# Tests for the coderef-in-@INC feature 4 5BEGIN { 6 chdir 't' if -d 't'; 7 @INC = qw(. ../lib); 8} 9 10use File::Spec; 11 12require "test.pl"; 13plan(tests => 45); 14 15my @tempfiles = (); 16 17sub get_temp_fh { 18 my $f = "DummyModule0000"; 19 1 while -e ++$f; 20 push @tempfiles, $f; 21 open my $fh, ">$f" or die "Can't create $f: $!"; 22 print $fh "package ".substr($_[0],0,-3).";\n1;\n"; 23 print $fh $_[1] if @_ > 1; 24 close $fh or die "Couldn't close: $!"; 25 open $fh, $f or die "Can't open $f: $!"; 26 return $fh; 27} 28 29END { 1 while unlink @tempfiles } 30 31sub fooinc { 32 my ($self, $filename) = @_; 33 if (substr($filename,0,3) eq 'Foo') { 34 return get_temp_fh($filename); 35 } 36 else { 37 return undef; 38 } 39} 40 41push @INC, \&fooinc; 42 43my $evalret = eval { require Bar; 1 }; 44ok( !$evalret, 'Trying non-magic package' ); 45 46$evalret = eval { require Foo; 1 }; 47die $@ if $@; 48ok( $evalret, 'require Foo; magic via code ref' ); 49ok( exists $INC{'Foo.pm'}, ' %INC sees Foo.pm' ); 50is( ref $INC{'Foo.pm'}, 'CODE', ' val Foo.pm is a coderef in %INC' ); 51is( $INC{'Foo.pm'}, \&fooinc, ' val Foo.pm is correct in %INC' ); 52 53$evalret = eval "use Foo1; 1;"; 54die $@ if $@; 55ok( $evalret, 'use Foo1' ); 56ok( exists $INC{'Foo1.pm'}, ' %INC sees Foo1.pm' ); 57is( ref $INC{'Foo1.pm'}, 'CODE', ' val Foo1.pm is a coderef in %INC' ); 58is( $INC{'Foo1.pm'}, \&fooinc, ' val Foo1.pm is correct in %INC' ); 59 60$evalret = eval { do 'Foo2.pl'; 1 }; 61die $@ if $@; 62ok( $evalret, 'do "Foo2.pl"' ); 63ok( exists $INC{'Foo2.pl'}, ' %INC sees Foo2.pl' ); 64is( ref $INC{'Foo2.pl'}, 'CODE', ' val Foo2.pl is a coderef in %INC' ); 65is( $INC{'Foo2.pl'}, \&fooinc, ' val Foo2.pl is correct in %INC' ); 66 67pop @INC; 68 69 70sub fooinc2 { 71 my ($self, $filename) = @_; 72 if (substr($filename, 0, length($self->[1])) eq $self->[1]) { 73 return get_temp_fh($filename); 74 } 75 else { 76 return undef; 77 } 78} 79 80my $arrayref = [ \&fooinc2, 'Bar' ]; 81push @INC, $arrayref; 82 83$evalret = eval { require Foo; 1; }; 84die $@ if $@; 85ok( $evalret, 'Originally loaded packages preserved' ); 86$evalret = eval { require Foo3; 1; }; 87ok( !$evalret, 'Original magic INC purged' ); 88 89$evalret = eval { require Bar; 1 }; 90die $@ if $@; 91ok( $evalret, 'require Bar; magic via array ref' ); 92ok( exists $INC{'Bar.pm'}, ' %INC sees Bar.pm' ); 93is( ref $INC{'Bar.pm'}, 'ARRAY', ' val Bar.pm is an arrayref in %INC' ); 94is( $INC{'Bar.pm'}, $arrayref, ' val Bar.pm is correct in %INC' ); 95 96ok( eval "use Bar1; 1;", 'use Bar1' ); 97ok( exists $INC{'Bar1.pm'}, ' %INC sees Bar1.pm' ); 98is( ref $INC{'Bar1.pm'}, 'ARRAY', ' val Bar1.pm is an arrayref in %INC' ); 99is( $INC{'Bar1.pm'}, $arrayref, ' val Bar1.pm is correct in %INC' ); 100 101ok( eval { do 'Bar2.pl'; 1 }, 'do "Bar2.pl"' ); 102ok( exists $INC{'Bar2.pl'}, ' %INC sees Bar2.pl' ); 103is( ref $INC{'Bar2.pl'}, 'ARRAY', ' val Bar2.pl is an arrayref in %INC' ); 104is( $INC{'Bar2.pl'}, $arrayref, ' val Bar2.pl is correct in %INC' ); 105 106pop @INC; 107 108sub FooLoader::INC { 109 my ($self, $filename) = @_; 110 if (substr($filename,0,4) eq 'Quux') { 111 return get_temp_fh($filename); 112 } 113 else { 114 return undef; 115 } 116} 117 118my $href = bless( {}, 'FooLoader' ); 119push @INC, $href; 120 121$evalret = eval { require Quux; 1 }; 122die $@ if $@; 123ok( $evalret, 'require Quux; magic via hash object' ); 124ok( exists $INC{'Quux.pm'}, ' %INC sees Quux.pm' ); 125is( ref $INC{'Quux.pm'}, 'FooLoader', 126 ' val Quux.pm is an object in %INC' ); 127is( $INC{'Quux.pm'}, $href, ' val Quux.pm is correct in %INC' ); 128 129pop @INC; 130 131my $aref = bless( [], 'FooLoader' ); 132push @INC, $aref; 133 134$evalret = eval { require Quux1; 1 }; 135die $@ if $@; 136ok( $evalret, 'require Quux1; magic via array object' ); 137ok( exists $INC{'Quux1.pm'}, ' %INC sees Quux1.pm' ); 138is( ref $INC{'Quux1.pm'}, 'FooLoader', 139 ' val Quux1.pm is an object in %INC' ); 140is( $INC{'Quux1.pm'}, $aref, ' val Quux1.pm is correct in %INC' ); 141 142pop @INC; 143 144my $sref = bless( \(my $x = 1), 'FooLoader' ); 145push @INC, $sref; 146 147$evalret = eval { require Quux2; 1 }; 148die $@ if $@; 149ok( $evalret, 'require Quux2; magic via scalar object' ); 150ok( exists $INC{'Quux2.pm'}, ' %INC sees Quux2.pm' ); 151is( ref $INC{'Quux2.pm'}, 'FooLoader', 152 ' val Quux2.pm is an object in %INC' ); 153is( $INC{'Quux2.pm'}, $sref, ' val Quux2.pm is correct in %INC' ); 154 155pop @INC; 156 157push @INC, sub { 158 my ($self, $filename) = @_; 159 if (substr($filename,0,4) eq 'Toto') { 160 $INC{$filename} = 'xyz'; 161 return get_temp_fh($filename); 162 } 163 else { 164 return undef; 165 } 166}; 167 168$evalret = eval { require Toto; 1 }; 169die $@ if $@; 170ok( $evalret, 'require Toto; magic via anonymous code ref' ); 171ok( exists $INC{'Toto.pm'}, ' %INC sees Toto.pm' ); 172ok( ! ref $INC{'Toto.pm'}, q/ val Toto.pm isn't a ref in %INC/ ); 173is( $INC{'Toto.pm'}, 'xyz', ' val Toto.pm is correct in %INC' ); 174 175pop @INC; 176 177push @INC, sub { 178 my ($self, $filename) = @_; 179 if ($filename eq 'abc.pl') { 180 return get_temp_fh($filename, qq(return "abc";\n)); 181 } 182 else { 183 return undef; 184 } 185}; 186 187$ret = ""; 188$ret ||= do 'abc.pl'; 189is( $ret, 'abc', 'do "abc.pl" sees return value' ); 190 191pop @INC; 192 193my $filename = $^O eq 'MacOS' ? ':Foo:Foo.pm' : './Foo.pm'; 194{ 195 local @INC; 196 @INC = sub { $filename = 'seen'; return undef; }; 197 eval { require $filename; }; 198 is( $filename, 'seen', 'the coderef sees fully-qualified pathnames' ); 199} 200