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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Method#source_location" do
before :each do
@method = MethodSpecs::SourceLocation.method(:location)
end
it "returns an Array" do
@method.source_location.should be_an_instance_of(Array)
end
it "sets the first value to the path of the file in which the method was defined" do
file = @method.source_location.first
file.should be_an_instance_of(String)
file.should == File.realpath('../fixtures/classes.rb', __FILE__)
end
it "sets the last value to a Fixnum representing the line on which the method was defined" do
line = @method.source_location.last
line.should be_an_instance_of(Fixnum)
line.should == 5
end
it "returns the last place the method was defined" do
MethodSpecs::SourceLocation.method(:redefined).source_location.last.should == 13
end
it "returns the location of the original method even if it was aliased" do
MethodSpecs::SourceLocation.new.method(:aka).source_location.last.should == 17
end
it "works for methods defined with a block" do
line = nil
klass = Class.new do
line = __LINE__ + 1
define_method(:f) { }
end
method = klass.new.method(:f)
method.source_location[0].should =~ /#{__FILE__}/
method.source_location[1].should == line
end
it "works for methods defined with a Method" do
line = nil
klass = Class.new do
line = __LINE__ + 1
def f
end
define_method :g, new.method(:f)
end
method = klass.new.method(:g)
method.source_location[0].should =~ /#{__FILE__}/
method.source_location[1].should == line
end
it "works for methods defined with an UnboundMethod" do
line = nil
klass = Class.new do
line = __LINE__ + 1
def f
end
define_method :g, instance_method(:f)
end
method = klass.new.method(:g)
method.source_location[0].should =~ /#{__FILE__}/
method.source_location[1].should == line
end
it "works for methods whose visibility has been overridden in a subclass" do
line = nil
superclass = Class.new do
line = __LINE__ + 1
def f
end
end
subclass = Class.new(superclass) do
private :f
end
method = subclass.new.method(:f)
method.source_location[0].should =~ /#{__FILE__}/
method.source_location[1].should == line
end
describe "for a Method generated by respond_to_missing?" do
it "returns nil" do
m = MethodSpecs::Methods.new
m.method(:handled_via_method_missing).source_location.should be_nil
end
end
end
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