1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
package Test::Builder::NoOutput;
use strict;
use warnings;
use Symbol qw(gensym);
use base qw(Test::Builder);
=head1 NAME
Test::Builder::NoOutput - A subclass of Test::Builder which prints nothing
=head1 SYNOPSIS
use Test::Builder::NoOutput;
my $tb = Test::Builder::NoOutput->new;
...test as normal...
my $output = $tb->read;
=head1 DESCRIPTION
This is a subclass of Test::Builder which traps all its output.
It is mostly useful for testing Test::Builder.
=head3 read
my $all_output = $tb->read;
my $output = $tb->read($stream);
Returns all the output (including failure and todo output) collected
so far. It is destructive, each call to read clears the output
buffer.
If $stream is given it will return just the output from that stream.
$stream's are...
out output()
err failure_output()
todo todo_output()
all all outputs
Defaults to 'all'.
=cut
my $Test = __PACKAGE__->new;
sub create {
my $class = shift;
my $self = $class->SUPER::create(@_);
my %outputs = (
all => '',
out => '',
err => '',
todo => '',
);
$self->{_outputs} = \%outputs;
my($out, $err, $todo) = map { gensym() } 1..3;
tie *$out, "Test::Builder::NoOutput::Tee", \$outputs{all}, \$outputs{out};
tie *$err, "Test::Builder::NoOutput::Tee", \$outputs{all}, \$outputs{err};
tie *$todo, "Test::Builder::NoOutput::Tee", \$outputs{all}, \$outputs{todo};
$self->output($out);
$self->failure_output($err);
$self->todo_output($todo);
return $self;
}
sub read {
my $self = shift;
my $stream = @_ ? shift : 'all';
my $out = $self->{_outputs}{$stream};
$self->{_outputs}{$stream} = '';
# Clear all the streams if 'all' is read.
if( $stream eq 'all' ) {
my @keys = keys %{$self->{_outputs}};
$self->{_outputs}{$_} = '' for @keys;
}
return $out;
}
package Test::Builder::NoOutput::Tee;
# A cheap implementation of IO::Tee.
sub TIEHANDLE {
my($class, @refs) = @_;
my @fhs;
for my $ref (@refs) {
my $fh = Test::Builder->_new_fh($ref);
push @fhs, $fh;
}
my $self = [@fhs];
return bless $self, $class;
}
sub PRINT {
my $self = shift;
print $_ @_ for @$self;
}
sub PRINTF {
my $self = shift;
my $format = shift;
printf $_ @_ for @$self;
}
1;
|
