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# -*- encoding: binary -*-
require File.expand_path('../../../../spec_helper', __FILE__)
with_feature :encoding do
describe "Encoding::Converter#last_error" do
it "returns nil when the no conversion has been attempted" do
ec = Encoding::Converter.new('ascii','utf-8')
ec.last_error.should be_nil
end
it "returns nil when the last conversion did not produce an error" do
ec = Encoding::Converter.new('ascii','utf-8')
ec.convert('a'.force_encoding('ascii'))
ec.last_error.should be_nil
end
it "returns nil when #primitive_convert last returned :destination_buffer_full" do
ec = Encoding::Converter.new("utf-8", "iso-2022-jp")
ec.primitive_convert("\u{9999}", "", 0, 0, partial_input: false) \
.should == :destination_buffer_full
ec.last_error.should be_nil
end
it "returns nil when #primitive_convert last returned :finished" do
ec = Encoding::Converter.new("utf-8", "iso-8859-1")
ec.primitive_convert("glark".force_encoding('utf-8'),"").should == :finished
ec.last_error.should be_nil
end
it "returns nil if the last conversion succeeded but the penultimate failed" do
ec = Encoding::Converter.new("utf-8", "iso-8859-1")
ec.primitive_convert("\xf1abcd","").should == :invalid_byte_sequence
ec.primitive_convert("glark".force_encoding('utf-8'),"").should == :finished
ec.last_error.should be_nil
end
it "returns an Encoding::InvalidByteSequenceError when #primitive_convert last returned :invalid_byte_sequence" do
ec = Encoding::Converter.new("utf-8", "iso-8859-1")
ec.primitive_convert("\xf1abcd","").should == :invalid_byte_sequence
ec.last_error.should be_an_instance_of(Encoding::InvalidByteSequenceError)
end
it "returns an Encoding::UndefinedConversionError when #primitive_convert last returned :undefined_conversion" do
ec = Encoding::Converter.new("utf-8", "iso-8859-1")
ec.primitive_convert("\u{9876}","").should == :undefined_conversion
ec.last_error.should be_an_instance_of(Encoding::UndefinedConversionError)
end
it "returns an Encoding::InvalidByteSequenceError when #primitive_convert last returned :incomplete_input" do
ec = Encoding::Converter.new("EUC-JP", "ISO-8859-1")
ec.primitive_convert("\xa4", "", nil, 10).should == :incomplete_input
ec.last_error.should be_an_instance_of(Encoding::InvalidByteSequenceError)
end
it "returns an Encoding::InvalidByteSequenceError when the last call to #convert produced one" do
ec = Encoding::Converter.new("utf-8", "iso-8859-1")
exception = nil
-> {
ec.convert("\xf1abcd")
}.should raise_error(Encoding::InvalidByteSequenceError) { |e|
exception = e
}
ec.last_error.should be_an_instance_of(Encoding::InvalidByteSequenceError)
ec.last_error.message.should == exception.message
end
it "returns an Encoding::UndefinedConversionError when the last call to #convert produced one" do
ec = Encoding::Converter.new("utf-8", "iso-8859-1")
exception = nil
-> {
ec.convert("\u{9899}")
}.should raise_error(Encoding::UndefinedConversionError) { |e|
exception = e
}
ec.last_error.should be_an_instance_of(Encoding::UndefinedConversionError)
ec.last_error.message.should == exception.message
ec.last_error.message.should include "from UTF-8 to ISO-8859-1"
end
it "returns the last error of #convert with a message showing the transcoding path" do
ec = Encoding::Converter.new("iso-8859-1", "Big5")
exception = nil
-> {
ec.convert("\xE9") # é in ISO-8859-1
}.should raise_error(Encoding::UndefinedConversionError) { |e|
exception = e
}
ec.last_error.should be_an_instance_of(Encoding::UndefinedConversionError)
ec.last_error.message.should == exception.message
ec.last_error.message.should include "from ISO-8859-1 to UTF-8 to Big5"
end
end
end
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