# encoding: UTF-8

require 'spec_helper'

describe 'common_helper' do
  describe '#get_equal_string' do
    after :each do
      output = get_equal_string_end(@input)

      expect(output).to eq @expected
    end

    it 'returns an empty string' do
      @input    = %w()
      @expected = ''
    end

    it 'returns an empty string' do
      @input    = []
      @expected = ''
    end

    it 'returns an empty string' do
      @input    = ['asdf', nil]
      @expected = ''
    end

    it 'returns an empty string' do
      @input    = [nil, 'asdf']
      @expected = ''
    end

    it 'returns asdf' do
      @input    = [nil, 'a asdf', nil, 'b asdf']
      @expected = ' asdf'
    end

    it 'returns asdf' do
      @input    = ['kjh asdf', 'oijr asdf']
      @expected = ' asdf'
    end

    it 'returns «  BlogName' do
      @input = ['user1 «  BlogName',
                'user2 «  BlogName',
                'user3 «  BlogName',
                'user4 «  BlogName']
      @expected = ' «  BlogName'
    end

    it 'returns an empty string' do
      @input    = %w{user1 user2 user3 user4}
      @expected = ''
    end

    it 'returns an empty string' do
      @input = ['user1 «  BlogName',
                'user2 «  BlogName',
                'user3 «  BlogName',
                'user4 «  BlogNamea']
      @expected = ''
    end

    it 'returns an empty string' do
      @input    = %w{ user1 }
      @expected = ''
    end

    it 'returns | test' do
      @input    = ['admin | test', 'test | test']
      @expected = ' | test'
    end
  end

  describe '#remove_base64_images_from_html' do
    after :each do
      output = remove_base64_images_from_html(@html)
      expect(output).to eq @expected
    end

    it 'removes the valid base64 image' do
      @html = '<img alt="" src="data:image/x-png;base64,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" />'
      @expected = '<img alt="" src="" />'
    end

    it 'ignores invalid base64 content' do
      @html = '<img alt="" src="data:image/x-png;base64,iVBORw0KGgo" />'
      @expected = @html
    end
  end

  describe '#truncate' do
    after :each do
      output = truncate(@input, @length, @trailing)
      expect(output).to eq @expected
    end

    it 'returns nil on no input' do
      @input = nil
      @length = 1
      @expected = nil
      @trailing = '...'
    end

    it 'returns input when length > input' do
      @input = '1234567890'
      @length = 13
      @expected = @input
      @trailing = '...'
    end

    it 'truncates the input' do
      @input = '1234567890'
      @length = 6
      @expected = '123...'
      @trailing = '...'
    end

    it 'adds own trailing' do
      @input = '1234567890'
      @length = 7
      @expected = '123xxxx'
      @trailing = 'xxxx'
    end

    it 'accepts strings as length' do
      @input = '1234567890'
      @length = '6'
      @expected = '123...'
      @trailing = '...'
    end

    it 'checks if trailing is longer than input' do
      @input = '1234567890'
      @length = 1
      @expected = @input
      @trailing = 'A' * 20
    end

    it 'returns input on negative length' do
      @input = '1234567890'
      @length = -1
      @expected = @input
      @trailing = '...'
    end

    it 'returns input on length == input.length' do
      @input = '1234567890'
      @length = '10'
      @expected = @input
      @trailing = '...'
    end

    it 'returns cut string on nil trailing' do
      @input = '1234567890'
      @length = 9
      @expected = '123456789'
      @trailing = nil
    end

    it 'trailing.length > length' do
      @input = '1234567890'
      @length = 1
      @expected = @input
      @trailing = 'A' * 20
    end

  end

end