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require 'abstract_unit'
require 'active_support/core_ext/kernel'
class KernelTest < Test::Unit::TestCase
def test_silence_warnings
silence_warnings { assert_nil $VERBOSE }
assert_equal 1234, silence_warnings { 1234 }
end
def test_silence_warnings_verbose_invariant
old_verbose = $VERBOSE
silence_warnings { raise }
flunk
rescue
assert_equal old_verbose, $VERBOSE
end
def test_enable_warnings
enable_warnings { assert_equal true, $VERBOSE }
assert_equal 1234, enable_warnings { 1234 }
end
def test_enable_warnings_verbose_invariant
old_verbose = $VERBOSE
enable_warnings { raise }
flunk
rescue
assert_equal old_verbose, $VERBOSE
end
def test_silence_stderr
old_stderr_position = STDERR.tell
silence_stderr { STDERR.puts 'hello world' }
assert_equal old_stderr_position, STDERR.tell
rescue Errno::ESPIPE
# Skip if we can't STDERR.tell
end
def test_silence_stderr_with_return_value
assert_equal 1, silence_stderr { 1 }
end
end
class KernelSupressTest < Test::Unit::TestCase
def test_reraise
assert_raise(LoadError) do
suppress(ArgumentError) { raise LoadError }
end
end
def test_supression
suppress(ArgumentError) { raise ArgumentError }
suppress(LoadError) { raise LoadError }
suppress(LoadError, ArgumentError) { raise LoadError }
suppress(LoadError, ArgumentError) { raise ArgumentError }
end
end
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