79 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			79 lines
		
	
	
	
		
			2.5 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
# frozen_string_literal: true
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require 'rails_helper'
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describe Extractor do
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  describe 'extract_mentions_or_lists_with_indices' do
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    it 'returns an empty array if the given string does not have at signs' do
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      text = 'a string without at signs'
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      extracted = Extractor.extract_mentions_or_lists_with_indices(text)
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      expect(extracted).to eq []
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    end
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    it 'does not extract mentions which ends with particular characters' do
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      text = '@screen_name@'
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      extracted = Extractor.extract_mentions_or_lists_with_indices(text)
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      expect(extracted).to eq []
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    end
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    it 'returns mentions as an array' do
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      text = '@screen_name'
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      extracted = Extractor.extract_mentions_or_lists_with_indices(text)
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      expect(extracted).to eq [
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        { screen_name: 'screen_name', indices: [0, 12] }
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      ]
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    end
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    it 'yields mentions if a block is given' do
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      text = '@screen_name'
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      Extractor.extract_mentions_or_lists_with_indices(text) do |screen_name, start_position, end_position|
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        expect(screen_name).to eq 'screen_name'
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        expect(start_position).to eq 0
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        expect(end_position).to eq 12
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      end
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    end
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  end
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  describe 'extract_hashtags_with_indices' do
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    it 'returns an empty array if it does not have #' do
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      text = 'a string without hash sign'
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      extracted = Extractor.extract_hashtags_with_indices(text)
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      expect(extracted).to eq []
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    end
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    it 'does not exclude normal hash text before ://' do
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      text = '#hashtag://'
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      extracted = Extractor.extract_hashtags_with_indices(text)
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      expect(extracted).to eq [{ hashtag: 'hashtag', indices: [0, 8] }]
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    end
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    it 'excludes http://' do
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      text = '#hashtaghttp://'
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      extracted = Extractor.extract_hashtags_with_indices(text)
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      expect(extracted).to eq [{ hashtag: 'hashtag', indices: [0, 8] }]
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    end
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    it 'excludes https://' do
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      text = '#hashtaghttps://'
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      extracted = Extractor.extract_hashtags_with_indices(text)
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      expect(extracted).to eq [{ hashtag: 'hashtag', indices: [0, 8] }]
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    end
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    it 'yields hashtags if a block is given' do
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      text = '#hashtag'
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      Extractor.extract_hashtags_with_indices(text) do |hashtag, start_position, end_position|
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        expect(hashtag).to eq 'hashtag'
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        expect(start_position).to eq 0
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        expect(end_position).to eq 8
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      end
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    end
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  end
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  describe 'extract_cashtags_with_indices' do
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    it 'returns []' do
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      text = '$cashtag'
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      extracted = Extractor.extract_cashtags_with_indices(text)
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      expect(extracted).to eq []
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    end
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  end
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end
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