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require_relative "../../../spec_helper"
require_relative '../fixtures/classes'
describe "Encoding::InvalidByteSequenceError#source_encoding" do
before :each do
@exception, = EncodingSpecs::InvalidByteSequenceError.exception
@exception2, = EncodingSpecs::InvalidByteSequenceErrorIndirect.exception
end
it "returns an Encoding object" do
@exception.source_encoding.should be_an_instance_of(Encoding)
@exception2.source_encoding.should be_an_instance_of(Encoding)
end
it "is equal to the source encoding of the object that raised it" do
@exception.source_encoding.should == Encoding::UTF_8
end
# The source encoding specified in the Encoding::Converter constructor may
# differ from the source encoding returned here. What seems to happen is
# that when transcoding along a path with multiple pairs of encodings, the
# last one encountered when the error occurred is returned. So in this
# case, the conversion path is EUC-JP -> UTF-8 -> ISO-8859-1. The
# conversions failed with the first pair of encodings (i.e. transcoding
# from EUC-JP to UTF-8, so UTF-8 is regarded as the source encoding; if
# the error had occurred when converting from UTF-8 to ISO-8859-1, UTF-8
# would have been the source encoding.
# FIXME: Derive example where the failure occurs at the UTF-8 ->
# ISO-8859-1 case so as to better illustrate the issue
it "is equal to the source encoding at the stage of the conversion path where the error occurred" do
@exception2.source_encoding.should == Encoding::EUC_JP
end
end
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