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require_relative '../../spec_helper'
describe "Encoding.default_internal" do
before :each do
@original_encoding = Encoding.default_internal
end
after :each do
Encoding.default_internal = @original_encoding
end
it "is nil by default" do
Encoding.default_internal.should be_nil
end
it "returns an Encoding object if a default internal encoding is set" do
Encoding.default_internal = Encoding::ASCII
Encoding.default_internal.should be_an_instance_of(Encoding)
end
it "returns nil if no default internal encoding is set" do
Encoding.default_internal = nil
Encoding.default_internal.should be_nil
end
it "returns the default internal encoding" do
Encoding.default_internal = Encoding::ASCII_8BIT
Encoding.default_internal.should == Encoding::ASCII_8BIT
end
end
describe "Encoding.default_internal=" do
before :each do
@original_encoding = Encoding.default_internal
end
after :each do
Encoding.default_internal = @original_encoding
end
it "sets the default internal encoding" do
Encoding.default_internal = Encoding::SHIFT_JIS
Encoding.default_internal.should == Encoding::SHIFT_JIS
end
it "can accept a name of an encoding as a String" do
Encoding.default_internal = 'Shift_JIS'
Encoding.default_internal.should == Encoding::SHIFT_JIS
end
it "calls #to_str to convert an object to a String" do
obj = mock('string')
obj.should_receive(:to_str).at_least(1).times.and_return('ascii')
Encoding.default_internal = obj
Encoding.default_internal.should == Encoding::ASCII
end
it "raises a TypeError if #to_str does not return a String" do
obj = mock('string')
obj.should_receive(:to_str).at_least(1).times.and_return(1)
lambda { Encoding.default_internal = obj }.should raise_error(TypeError)
end
it "raises a TypeError when passed an object not providing #to_str" do
lambda { Encoding.default_internal = mock("encoding") }.should raise_error(TypeError)
end
it "accepts an argument of nil to unset the default internal encoding" do
Encoding.default_internal = nil
Encoding.default_internal.should be_nil
end
end
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