我正在尝试使用moops构建一个方便的模拟类:
#!/usr/bin/env perl
use Modern::Perl '2014';
use Moops;
use Test::More;
class aClass {
method m {}
method l {}
};
class NotWorkingMockAClass
extends aClass {
has methodCallLog => (
is => 'rw',
default => sub { [] },
isa => ArrayRef
);
around m, l {
push $self->methodCallLog, (caller(0))[3] =~ m/::(\w+)$/;
$next->($self, @_ );
}
};
my $mac = NotWorkingMockAClass->new();
$mac->m();
$mac->l();
$mac->m();
is( ($mac->methodCallLog)->[0], 'm', 'mcl[0] == m' );
is( ($mac->methodCallLog)->[1], 'l', 'mcl[1] == l' );
is( ($mac->methodCallLog)->[2], 'm', 'mcl[2] == m' );
这会产生:
$ perl mocking.pl
ok 1 - mcl[0] == m
not ok 2 - mcl[1] == l
# Failed test 'mcl[1] == l'
# at mocking.pl line 33.
# got: 'm'
# expected: 'l'
ok 3 - mcl[2] == m
因此,当我使用caller()
快捷方式时,问题似乎是m
始终返回around m,l ..
。
像这样定义类:
class WorkingMockAClass
extends aClass {
has methodCallLog => (
is => 'rw',
default => sub { [] },
isa => ArrayRef
);
method _logAndDispatch( CodeRef $next, ArrayRef $args ){
push $self->methodCallLog, (caller(1))[3] =~ m/::(\w)$/;
$next->($self, @$args );
}
around m {
$self->_logAndDispatch( $next, \@_ );
}
around l {
$self->_logAndDispatch( $next, \@_ );
}
};
有效,但写起来有点冗长和麻烦。
使用Moops有更好的选择吗?
答案 0 :(得分:2)
就个人Moops或其他方式而言,我不相信任何可能会对其应用修饰符的方法caller
。在这些修饰语中我也不相信它。你过分依赖方法修饰符的工作原理。 (Moo / Moose / Mouse之间会有所不同。)
你尝试过这样的事吗?
push @{ $self->methodCallLog }, Sub::Identify::sub_name($next);
(或者使用Sub :: Util而不是Sub :: Identify。)