Curiously, there doesn't seem to be a matcher around that matches a JSON
string against an expected ruby object. Below is what I've come up
with, including some Rails idiosyncrasies. Any suggestions for
improvements?
Michael
module Spec
module JSONMatchers
class BeJsonEql
def initialize(expected)
@raw_expected = expected
@expected = decode(expected, 'expected')
end
def matches?(target)
@raw_target = target
@target = decode(target, 'target')
@target == @expected
end
def failure_message
"expected\...@raw_target}\n" +
"to be JSON code equivalent to\...@raw_expected}\n" +
"Difference:\...@expected.diff(@target).inspect}"
end
def negative_failure_message
"expected\...@raw_target}\n" +
"to be JSON code different from\...@raw_expected}"
end
private
def decode(s, which)
ActiveSupport::JSON.decode(s)
rescue ActiveSupport::JSON::ParseError
raise ArgumentError, "Invalid #{which} JSON string:
#{s.inspect}"
end
end
def be_json_eql(expected)
BeJsonEql.new(expected)
end
end
end
--
Michael Schuerig
mailto:mich...@schuerig.de
http://www.schuerig.de/michael/
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