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-rw-r--r--test/rake/test_rake_extension.rb59
1 files changed, 59 insertions, 0 deletions
diff --git a/test/rake/test_rake_extension.rb b/test/rake/test_rake_extension.rb
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index 00000000000..18d55f19f9c
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+++ b/test/rake/test_rake_extension.rb
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+require File.expand_path('../helper', __FILE__)
+require 'stringio'
+
+class TestRakeExtension < Rake::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