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Stop /[a-\d]/ from leaking under fatal warnings
[perl5.git] / t / op / override.t
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1#!./perl
2
3BEGIN {
4 chdir 't' if -d 't';
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5 @INC = '../lib';
6 require './test.pl';
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7}
8
7c864bb3 9plan tests => 28;
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10
11#
12# This file tries to test builtin override using CORE::GLOBAL
13#
14my $dirsep = "/";
15
16BEGIN { package Foo; *main::getlogin = sub { "kilroy"; } }
17
30fe34ed 18is( getlogin, "kilroy" );
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19
20my $t = 42;
21BEGIN { *CORE::GLOBAL::time = sub () { $t; } }
22
30fe34ed 23is( 45, time + 3 );
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24
25#
26# require has special behaviour
27#
28my $r;
29BEGIN { *CORE::GLOBAL::require = sub { $r = shift; 1; } }
30
31require Foo;
30fe34ed 32is( $r, "Foo.pm" );
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33
34require Foo::Bar;
30fe34ed 35is( $r, join($dirsep, "Foo", "Bar.pm") );
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36
37require 'Foo';
30fe34ed 38is( $r, "Foo" );
2adfde11 39
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40require 5.006;
41is( $r, "5.006" );
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42
43require v5.6;
30fe34ed 44ok( abs($r - 5.006) < 0.001 && $r eq "\x05\x06" );
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45
46eval "use Foo";
30fe34ed 47is( $r, "Foo.pm" );
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48
49eval "use Foo::Bar";
30fe34ed 50is( $r, join($dirsep, "Foo", "Bar.pm") );
2adfde11 51
81bccfe4 52{
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53 my @r;
54 local *CORE::GLOBAL::require = sub { push @r, shift; 1; };
81bccfe4 55 eval "use 5.006";
7d69d4a6 56 like( " @r ", qr " 5\.006 " );
81bccfe4 57}
b9f751c0 58
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59{
60 local $_ = 'foo.pm';
61 require;
62 is( $r, 'foo.pm' );
63}
64
65{
90b58ec9 66 no warnings 'deprecated';
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67 my $_ = 'bar.pm';
68 require;
69 is( $r, 'bar.pm' );
70}
71
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72# localizing *CORE::GLOBAL::foo should revert to finding CORE::foo
73{
74 local(*CORE::GLOBAL::require);
75 $r = '';
76 eval "require NoNeXiSt;";
30fe34ed 77 ok( ! ( $r or $@ !~ /^Can't locate NoNeXiSt/i ) );
b9f751c0 78}
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79
80#
81# readline() has special behaviour too
82#
83
84$r = 11;
85BEGIN { *CORE::GLOBAL::readline = sub (;*) { ++$r }; }
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86is( <FH> , 12 );
87is( <$fh> , 13 );
9b3023bc 88my $pad_fh;
30fe34ed 89is( <$pad_fh> , 14 );
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90
91# Non-global readline() override
92BEGIN { *Rgs::readline = sub (;*) { --$r }; }
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93{
94 package Rgs;
95 ::is( <FH> , 13 );
96 ::is( <$fh> , 12 );
97 ::is( <$pad_fh> , 11 );
98}
30fe34ed 99
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100# Global readpipe() override
101BEGIN { *CORE::GLOBAL::readpipe = sub ($) { "$_[0] " . --$r }; }
102is( `rm`, "rm 10", '``' );
103is( qx/cp/, "cp 9", 'qx' );
104
105# Non-global readpipe() override
106BEGIN { *Rgs::readpipe = sub ($) { ++$r . " $_[0]" }; }
107{
108 package Rgs;
109 ::is( `rm`, "10 rm", '``' );
110 ::is( qx/cp/, "11 cp", 'qx' );
111}
112
93f09d7b 113# Verify that the parsing of overridden keywords isn't messed up
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114# by the indirect object notation
115{
116 local $SIG{__WARN__} = sub {
117 ::like( $_[0], qr/^ok overriden at/ );
118 };
119 BEGIN { *OverridenWarn::warn = sub { CORE::warn "@_ overriden"; }; }
120 package OverridenWarn;
121 sub foo { "ok" }
122 warn( OverridenWarn->foo() );
123 warn OverridenWarn->foo();
124}
125BEGIN { *OverridenPop::pop = sub { ::is( $_[0][0], "ok" ) }; }
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126{
127 package OverridenPop;
128 sub foo { [ "ok" ] }
129 pop( OverridenPop->foo() );
130 pop OverridenPop->foo();
131}
132
133{
134 eval {
135 local *CORE::GLOBAL::require = sub {
136 CORE::require($_[0]);
137 };
138 require 5;
139 require Text::ParseWords;
140 };
141 is $@, '';
142}