76 lines
2.1 KiB
Ruby
76 lines
2.1 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Banzai::Filter::TruncateSourceFilter do
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include FilterSpecHelper
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let(:short_text) { 'foo' * 10 }
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let(:long_text) { ([short_text] * 10).join(' ') }
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before do
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stub_const("#{described_class}::CHARACTER_COUNT_LIMIT", 50)
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stub_const("#{described_class}::USER_MSG_LIMIT", 20)
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end
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context 'when markdown belongs to a blob' do
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it 'does nothing when limit is unspecified' do
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output = filter(long_text, text_source: :blob)
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expect(output).to eq(long_text)
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end
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it 'truncates normally when limit specified' do
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truncated = 'foofoof...'
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output = filter(long_text, text_source: :blob, limit: 10)
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expect(output).to eq(truncated)
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end
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end
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context 'when markdown belongs to a field (non-blob)' do
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it 'does nothing when limit is greater' do
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output = filter(long_text, limit: 1.megabyte)
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expect(output).to eq(long_text)
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end
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it 'truncates to the default when limit is unspecified' do
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stub_const("#{described_class}::USER_MSG_LIMIT", 200)
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truncated = 'foofoofoofoofoofoofoofoofoofoo foofoofoofoofoof...'
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output = filter(long_text)
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expect(output).to eq(truncated)
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end
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it 'prepends the user message' do
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truncated = <<~TEXT
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_The text is longer than 50 characters and has been visually truncated._
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foofoofoofoofoofoofoofoofoofoo foofoofoofoofoof...
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TEXT
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output = filter(long_text)
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expect(output).to eq(truncated.strip)
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end
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it 'does nothing to a short-enough text' do
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output = filter(short_text, limit: short_text.bytesize)
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expect(output).to eq(short_text)
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end
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it 'truncates UTF-8 text by bytes, on a character boundary' do
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utf8_text = '日本語の文字が大きい'
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truncated = '日...'
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expect(filter(utf8_text, limit: truncated.bytesize)).to eq(truncated)
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expect(filter(utf8_text, limit: utf8_text.bytesize)).to eq(utf8_text)
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expect(filter(utf8_text, limit: utf8_text.mb_chars.size)).not_to eq(utf8_text)
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end
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end
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end
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