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require 'test/unit'
require 'rake'
require 'stringio'
######################################################################
class Rake::TestExtension < Test::Unit::TestCase
module Redirect
def error_redirect
old_err = $stderr
result = StringIO.new
$stderr = result
yield
result
ensure
$stderr = old_err
end
end
class Sample
extend Redirect
def duplicate_method
:original
end
OK_ERRS = error_redirect do
rake_extension("a") do
def ok_method
end
end
end
DUP_ERRS = error_redirect do
rake_extension("duplicate_method") do
def duplicate_method
:override
end
end
end
end
def test_methods_actually_exist
sample = Sample.new
sample.ok_method
sample.duplicate_method
end
def test_no_warning_when_defining_ok_method
assert_equal "", Sample::OK_ERRS.string
end
def test_extension_complains_when_a_method_that_is_present
assert_match(/warning:/i, Sample::DUP_ERRS.string)
assert_match(/already exists/i, Sample::DUP_ERRS.string)
assert_match(/duplicate_method/i, Sample::DUP_ERRS.string)
assert_equal :original, Sample.new.duplicate_method
end
end
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