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require 'spec_helper'
require 'mspec/expectations/expectations'
require 'mspec/matchers'
class HSMMSpecs
def self.singleton_method
end
end
describe HaveSingletonMethodMatcher do
it "inherits from MethodMatcher" do
HaveSingletonMethodMatcher.new(:m).should be_kind_of(MethodMatcher)
end
it "matches when the class has a singleton method" do
matcher = HaveSingletonMethodMatcher.new :singleton_method
matcher.matches?(HSMMSpecs).should be_true
end
it "matches when the object has a singleton method" do
obj = double("HSMMSpecs")
def obj.singleton_method; end
matcher = HaveSingletonMethodMatcher.new :singleton_method
matcher.matches?(obj).should be_true
end
it "provides a failure message for #should" do
matcher = HaveSingletonMethodMatcher.new :some_method
matcher.matches?(HSMMSpecs)
matcher.failure_message.should == [
"Expected HSMMSpecs to have singleton method 'some_method'",
"but it does not"
]
end
it "provides a failure message for #should_not" do
matcher = HaveSingletonMethodMatcher.new :singleton_method
matcher.matches?(HSMMSpecs)
matcher.negative_failure_message.should == [
"Expected HSMMSpecs NOT to have singleton method 'singleton_method'",
"but it does"
]
end
end
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