59 lines
1.8 KiB
Ruby
59 lines
1.8 KiB
Ruby
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require 'rails_helper'
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RSpec.describe String do
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describe '#utf8_encode' do
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context 'for valid, UTF-8-encoded strings' do
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let(:subject) { 'hello' }
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it 'returns an identical copy' do
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expect(subject.utf8_encode).to eq(subject)
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expect(subject.utf8_encode.encoding).to be(subject.encoding)
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expect(subject.utf8_encode).not_to be(subject)
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end
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end
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context 'for strings in other encodings' do
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let(:subject) { original_string.encode(input_encoding) }
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context 'with no from: option' do
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let(:original_string) { 'Tschüss!' }
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let(:input_encoding) { Encoding::ISO_8859_2 }
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it 'detects the input encoding' do
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expect(subject.utf8_encode).to eq(original_string)
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end
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end
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context 'with a valid from: option' do
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let(:original_string) { 'Tschüss!' }
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let(:input_encoding) { Encoding::ISO_8859_2 }
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it 'uses the specified input encoding' do
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expect(subject.utf8_encode(from: 'iso-8859-2')).to eq(original_string)
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end
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it 'uses any valid input encoding, even if not correct' do
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expect(subject.utf8_encode(from: 'gb18030')).to eq('Tsch黶s!')
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end
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end
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context 'with an invalid from: option' do
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let(:original_string) { '―陈志' }
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let(:input_encoding) { Encoding::GB18030 }
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it 'does not try it' do
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expect { subject.encode('utf-8', 'gb2312') }
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.to raise_error(Encoding::InvalidByteSequenceError)
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expect { subject.utf8_encode(from: 'gb2312') }
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.not_to raise_error(Encoding::InvalidByteSequenceError)
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end
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it 'uses the detected input encoding instead' do
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expect(subject.utf8_encode(from: 'gb2312')).to eq(original_string)
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end
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end
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end
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end
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end
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