require 'spec_helper'

fixture_path = 'spec/fixtures'

describe 'fulfills RFC-4180 and more' do
  let(:options) { {col_sep: ',', row_sep: $INPUT_RECORD_SEPARATOR, quote_char: '"' } }

  context 'parses simple CSV' do
    context 'RFC-4180' do
      it 'separating on col_sep' do
        line = 'aaa,bbb,ccc'
        expect( SmarterCSV.send(:parse, line, options)).to eq [%w[aaa bbb ccc], 3]
      end

      it 'preserves whitespace' do
        line = ' aaa , bbb , ccc '
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          [' aaa ', ' bbb ', ' ccc '], 3
        ]
      end
    end

    context 'extending RFC-4180' do
      it 'with extra col_sep' do
        line = 'aaa,bbb,ccc,'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['aaa', 'bbb', 'ccc', ''], 4
        ]
      end

      it 'with extra col_sep with given header_size' do
        line = 'aaa,bbb,ccc,'
        expect( SmarterCSV.send(:parse, line, options, 3)).to eq [
          ['aaa', 'bbb', 'ccc'], 3
        ]
      end

      it 'with multiple extra col_sep' do
        line = 'aaa,bbb,ccc,,,'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['aaa', 'bbb', 'ccc', '', '', ''], 6
        ]
      end

      it 'with multiple extra col_sep' do
        line = 'aaa,bbb,ccc,,,'
        expect( SmarterCSV.send(:parse, line, options, 3)).to eq [
          ['aaa', 'bbb', 'ccc'], 3
        ]
      end

      it 'with multiple complex col_sep' do
        line = 'aaa<=>bbb<=>ccc<=><=><=>'
        expect( SmarterCSV.send(:parse, line, options.merge({col_sep: '<=>'}))).to eq [
          ['aaa', 'bbb', 'ccc', '', '', ''], 6
        ]
      end

      it 'with multiple complex col_sep with given header_size' do
        line = 'aaa<=>bbb<=>ccc<=><=><=>'
        expect( SmarterCSV.send(:parse, line, options.merge({col_sep: '<=>'}), 3)).to eq [
          ['aaa', 'bbb', 'ccc'], 3
        ]
      end
    end
  end

  context 'parses quoted CSV' do
    context 'RFC-4180' do
      it 'separating on col_sep' do
        line = '"aaa","bbb","ccc"'
        expect( SmarterCSV.send(:parse, line, options)).to eq [%w[aaa bbb ccc], 3]
      end

      it 'parses corner case correctly' do
        line = '"Board 4""","$17.40","10000003427"'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['Board 4"', '$17.40', '10000003427'], 3
        ]
      end

      it 'quoted parts can contain spaces' do
        line = '" aaa1 aaa2 "," bbb1 bbb2 "," ccc1 ccc2 "'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          [' aaa1 aaa2 ', ' bbb1 bbb2 ', ' ccc1 ccc2 '], 3
        ]
      end

      it 'quoted parts can contain row_sep' do
        line = '"aaa1, aaa2","bbb1, bbb2","ccc1, ccc2"'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['aaa1, aaa2', 'bbb1, bbb2', 'ccc1, ccc2'], 3
        ]
      end

      it 'quoted parts can contain row_sep' do
        line = '"aaa1, ""aaa2"", aaa3","""bbb1"", bbb2","ccc1, ""ccc2"""'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['aaa1, "aaa2", aaa3', '"bbb1", bbb2', 'ccc1, "ccc2"'], 3
        ]
      end

      it 'some fields are quoted' do
        line = '1,"board 4""",12.95'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['1', 'board 4"', '12.95'], 3
        ]
      end

      it 'separating on col_sep' do
        line = '"some","thing","""completely"" different"'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['some', 'thing', '"completely" different'], 3
        ]
      end
    end

    context 'extending RFC-4180' do
      it 'with extra col_sep, without given header_size' do
        line = '"aaa","bbb","ccc",'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['aaa', 'bbb', 'ccc', ''], 4
        ]
      end

      it 'with extra col_sep, with given header_size' do
        line = '"aaa","bbb","ccc",'
        expect( SmarterCSV.send(:parse, line, options, 3)).to eq [%w[aaa bbb ccc], 3]
      end

      it 'with multiple extra col_sep, without given header_size' do
        line = '"aaa","bbb","ccc",,,'
        expect( SmarterCSV.send(:parse, line, options)).to eq [
          ['aaa', 'bbb', 'ccc', '', '', ''], 6
        ]
      end

      it 'with multiple extra col_sep, with given header_size' do
        line = '"aaa","bbb","ccc",,,'
        expect( SmarterCSV.send(:parse, line, options, 3)).to eq [
          ['aaa', 'bbb', 'ccc'], 3
        ]
      end

      it 'with multiple complex extra col_sep, without given header_size' do
        line = '"aaa"<=>"bbb"<=>"ccc"<=><=><=>'
        expect( SmarterCSV.send(:parse, line, options.merge({col_sep: '<=>'}))).to eq [
          ['aaa', 'bbb', 'ccc', '', '', ''], 6
        ]
      end

      it 'with multiple complex extra col_sep, with given header_size' do
        line = '"aaa"<=>"bbb"<=>"ccc"<=><=><=>'
        expect( SmarterCSV.send(:parse, line, options.merge({col_sep: '<=>'}), 3)).to eq [
          ['aaa', 'bbb', 'ccc'], 3
        ]
      end
    end
  end

  # relaxed parsing compared to RFC-4180
  context 'liberal_parsing' do
    it 'parses corner case correctly' do
      line = 'is,this "three, or four",fields'
      expect( SmarterCSV.send(:parse, line, options)).to eq [
        ['is', 'this "three, or four"', 'fields'], 3
      ]
    end
  end
end