>> When you need to check several properties of an object, what is the
>> best way to match them all?
In the mail library I use a custom matcher, which lets me do things like:
it "should handle |Minero Aoki <aam...@loveruby.net>|" do
address = Mail::Address.new('Minero Aoki <aam...@loveruby.net>')
address.should break_down_to({
:display_name => 'Minero Aoki',
:address => 'aam...@loveruby.net',
:local => 'aamine',
:domain => 'loveruby.net',
:format => 'Minero Aoki <aam...@loveruby.net>',
:comments => nil,
:raw => 'Minero Aoki <aam...@loveruby.net>'})
end
The matcher in question is:
# encoding: utf-8
module CustomMatchers
class BreakDownTo
def initialize(expected)
@expected = expected
end
def matches?(target)
@target = target
@failed = false
@expected.each_pair do |k,v|
unless @target.send(k) == @expected[k]
@failed = k
end
end
!...@failed
end
def failure_message
"expected #...@failed} to be |#...@expected[@failed]}| " +
"but was |#...@target.send(@failed)}|"
end
def megative_failure_message
"expected #...@failed} not to be |#...@expected[@failed]}| " +
"and was |#...@target.send(@failed)}|"
end
end
# Actual matcher that is exposed.
def break_down_to(expected)
BreakDownTo.new(expected)
end
end
--
http://rubyx.com/
http://lindsaar.net/
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