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require 'abstract_unit'
require 'active_support/core_ext/module/attr_internal'
class AttrInternalTest < ActiveSupport::TestCase
def setup
@target = Class.new
@instance = @target.new
end
def test_reader
assert_nothing_raised { @target.attr_internal_reader :foo }
assert !@instance.instance_variable_defined?('@_foo')
assert_raise(NoMethodError) { @instance.foo = 1 }
@instance.instance_variable_set('@_foo', 1)
assert_nothing_raised { assert_equal 1, @instance.foo }
end
def test_writer
assert_nothing_raised { @target.attr_internal_writer :foo }
assert !@instance.instance_variable_defined?('@_foo')
assert_nothing_raised { assert_equal 1, @instance.foo = 1 }
assert_equal 1, @instance.instance_variable_get('@_foo')
assert_raise(NoMethodError) { @instance.foo }
end
def test_accessor
assert_nothing_raised { @target.attr_internal :foo }
assert !@instance.instance_variable_defined?('@_foo')
assert_nothing_raised { assert_equal 1, @instance.foo = 1 }
assert_equal 1, @instance.instance_variable_get('@_foo')
assert_nothing_raised { assert_equal 1, @instance.foo }
end
def test_naming_format
assert_equal '@_%s', Module.attr_internal_naming_format
assert_nothing_raised { Module.attr_internal_naming_format = '@abc%sdef' }
@target.attr_internal :foo
assert !@instance.instance_variable_defined?('@_foo')
assert !@instance.instance_variable_defined?('@abcfoodef')
assert_nothing_raised { @instance.foo = 1 }
assert !@instance.instance_variable_defined?('@_foo')
assert @instance.instance_variable_defined?('@abcfoodef')
ensure
Module.attr_internal_naming_format = '@_%s'
end
end
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