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Fix up Peek.t to account for preceding commits
[perl5.git] / t / porting / test_bootstrap.t
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1#!/perl -w
2use strict;
3
4# See "Writing a test" in perlhack.pod for the instructions about the order that
5# testing directories run, and which constructions should be avoided in the
6# early tests.
7
8# This regression tests ensures that the rules aren't accidentally overlooked.
9
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10BEGIN {
11 chdir 't';
12 require './test.pl';
13}
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14
15plan('no_plan');
16
17open my $fh, '<', '../MANIFEST' or die "Can't open MANIFEST: $!";
18
19# Three tests in t/comp need to use require or use to get their job done:
20my %exceptions = (hints => "require './test.pl'",
21 parser => 'use DieDieDie',
22 proto => 'use strict',
23 );
24
25while (my $file = <$fh>) {
26 next unless $file =~ s!^t/!!;
27 chomp $file;
28 $file =~ s/\s+.*//;
29 next unless $file =~ m!\.t$!;
30
31 local $/;
32 open my $t, '<', $file or die "Can't open $file: $!";
33 my $contents = <$t>;
34 # Make sure that we don't match ourselves
35 unlike($contents, qr/use\s+Test::More/, "$file doesn't use Test::\QMore");
36 next unless $file =~ m!^base/! or $file =~ m!^comp!;
37
38 # Remove only the excepted constructions for the specific files.
39 if ($file =~ m!comp/(.*)\.t! && $exceptions{$1}) {
40 my $allowed = $exceptions{$1};
41 $contents =~ s/\Q$allowed//gs;
42 }
43
44 # All uses of use are allowed in t/comp/use.t
45 unlike($contents, qr/^\s*use\s+/m, "$file doesn't use use")
46 unless $file eq 'comp/use.t';
47 # All uses of require are allowed in t/comp/require.t
48 unlike($contents, qr/^\s*require\s+/m, "$file doesn't use require")
49 unless $file eq 'comp/require.t'
50}
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51
52# There are regression tests using test.pl that don't want PL_sawampersand set
53
54# This very much relies on a bug in the regexp implementation, but for now it's
55# the best way to work out whether PL_sawampersand is true.
56# Then again, PL_sawampersand *is* a bug, for precisely the reason that this
57# test can detect the behaviour change.
58
59isnt($INC{'./test.pl'}, undef, 'We loaded test.pl');
60ok("Perl rules" =~ /Perl/, 'Perl rules');
61is(eval '$&', undef, 'Nothing in test.pl mentioned $&');
62is(eval '$`', undef, 'Nothing in test.pl mentioned $`');
63is(eval '$\'', undef, 'Nothing in test.pl mentioned $\'');
64# Currently seeing any of the 3 triggers the setting of all 3.
65# $` and $' will be '' rather than undef if the regexp sets them.