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require_relative '../../spec_helper'
require_relative 'shared/method'
require_relative 'fixtures/classes'
describe "Kernel#method" do
it_behaves_like :kernel_method, :method
before :each do
@obj = KernelSpecs::A.new
end
it "can be called on a private method" do
@obj.send(:private_method).should == :private_method
@obj.method(:private_method).should be_an_instance_of(Method)
end
it "can be called on a protected method" do
@obj.send(:protected_method).should == :protected_method
@obj.method(:protected_method).should be_an_instance_of(Method)
end
it "will see an alias of the original method as == when in a derived class" do
obj = KernelSpecs::B.new
obj.method(:aliased_pub_method).should == obj.method(:pub_method)
end
it "can call methods created with define_method" do
m = @obj.method(:defined_method)
m.call.should == :defined
end
it "can be called even if we only respond_to_missing? method, true" do
m = KernelSpecs::RespondViaMissing.new.method(:handled_privately)
m.should be_an_instance_of(Method)
m.call(1, 2, 3).should == "Done handled_privately([1, 2, 3])"
end
it "can call a #method_missing accepting zero or one arguments" do
cls = Class.new do
def respond_to_missing?(name, *)
name == :foo or super
end
def method_missing
:no_args
end
end
m = cls.new.method(:foo)
-> { m.call }.should raise_error(ArgumentError)
cls = Class.new do
def respond_to_missing?(name, *)
name == :bar or super
end
def method_missing(m)
m
end
end
m = cls.new.method(:bar)
m.call.should == :bar
end
describe "converts the given name to a String using #to_str" do
it "calls #to_str to convert the given name to a String" do
name = mock("method-name")
name.should_receive(:to_str).and_return("hash")
Object.method(name).should == Object.method(:hash)
end
it "raises a TypeError if the given name can't be converted to a String" do
-> { Object.method(nil) }.should raise_error(TypeError)
-> { Object.method([]) }.should raise_error(TypeError)
end
it "raises a NoMethodError if the given argument raises a NoMethodError during type coercion to a String" do
name = mock("method-name")
name.should_receive(:to_str).and_raise(NoMethodError)
-> { Object.method(name) }.should raise_error(NoMethodError)
end
end
end
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