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require 'spec_helper'
require 'mspec/expectations/expectations'
require 'mspec/matchers'
class HIMMSpecs
def instance_method
end
class Subclass < HIMMSpecs
def instance_sub_method
end
end
end
describe HaveInstanceMethodMatcher do
it "inherits from MethodMatcher" do
HaveInstanceMethodMatcher.new(:m).should be_kind_of(MethodMatcher)
end
it "matches when mod has the instance method" do
matcher = HaveInstanceMethodMatcher.new :instance_method
matcher.matches?(HIMMSpecs).should be_true
matcher.matches?(HIMMSpecs::Subclass).should be_true
end
it "does not match when mod does not have the instance method" do
matcher = HaveInstanceMethodMatcher.new :another_method
matcher.matches?(HIMMSpecs).should be_false
end
it "does not match if the method is in a superclass and include_super is false" do
matcher = HaveInstanceMethodMatcher.new :instance_method, false
matcher.matches?(HIMMSpecs::Subclass).should be_false
end
it "provides a failure message for #should" do
matcher = HaveInstanceMethodMatcher.new :some_method
matcher.matches?(HIMMSpecs)
matcher.failure_message.should == [
"Expected HIMMSpecs to have instance method 'some_method'",
"but it does not"
]
end
it "provides a failure messoge for #should_not" do
matcher = HaveInstanceMethodMatcher.new :some_method
matcher.matches?(HIMMSpecs)
matcher.negative_failure_message.should == [
"Expected HIMMSpecs NOT to have instance method 'some_method'",
"but it does"
]
end
end
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