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fix /test_bootstrap.t under -DPERL_NO_COW
[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: $!";
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33 # avoid PERL_UNICODE causing us to read non-UTF-8 files as UTF-8
34 binmode $t;
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35 my $contents = <$t>;
36 # Make sure that we don't match ourselves
37 unlike($contents, qr/use\s+Test::More/, "$file doesn't use Test::\QMore");
38 next unless $file =~ m!^base/! or $file =~ m!^comp!;
39
40 # Remove only the excepted constructions for the specific files.
41 if ($file =~ m!comp/(.*)\.t! && $exceptions{$1}) {
42 my $allowed = $exceptions{$1};
43 $contents =~ s/\Q$allowed//gs;
44 }
45
46 # All uses of use are allowed in t/comp/use.t
47 unlike($contents, qr/^\s*use\s+/m, "$file doesn't use use")
48 unless $file eq 'comp/use.t';
49 # All uses of require are allowed in t/comp/require.t
50 unlike($contents, qr/^\s*require\s+/m, "$file doesn't use require")
51 unless $file eq 'comp/require.t'
52}
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54# There are regression tests using test.pl that don't want PL_sawampersand
55# set. Or at least that was the case until PL_sawampersand was disabled
56# and replaced with copy-on-write.
57
58# We still allow PL_sawampersand to be enabled with
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59# -Accflags=-DPERL_SAWAMPERSAND, or with -DPERL_NO_COW, so its still worth
60# checking.
61# There's no portable, reliable way to check whether PL_sawampersand is
62# set, so instead we just "grep $`|$&|$' test.pl"
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64{
65 my $file = '';
66 my $fh;
67 if (ok(open(my $fh, '<', 'test.pl'), "opened test.pl")) {
68 $file = do { local $/; <$fh> };
69 $file //= '';
70 }
71 else {
72 diag("error: $!");
73 }
74 ok(length($file) > 0, "read test.pl successfully");
75 ok($file !~ /\$&/, 'Nothing in test.pl mentioned $&');
76 ok($file !~ /\$`/, 'Nothing in test.pl mentioned $`');
77 ok($file !~ /\$'/, 'Nothing in test.pl mentioned $\'');
78}