fluentd-ui/spec/lib/regexp_preview/multi_line_spec.rb

require 'spec_helper'

describe RegexpPreview::MultiLine do
  describe "#matches_json" do
    subject { parser.matches_json }
    let(:parser) { RegexpPreview::MultiLine.new(target_path, "multiline", params) }

    describe "simple usage" do
      let(:target_path) { File.expand_path("./spec/support/fixtures/error0.log", Rails.root) }

      let :params do
        params = {
          format_firstline: "foo",
          time_format: "time_format",
        }
        params["format1"] = "(?<foo>foo)\n"
        params["format2"] = "(?<bar>bar)"
        3.upto(Fluentd::Setting::InTail::MULTI_LINE_MAX_FORMAT_COUNT) do |i|
          params["format#{i}"] = ""
        end
        { params: params }
      end

      it 'should not have regexp and time_format in [:params][:setting]' do
        expect(subject[:params][:setting]).to eq({ regexp: nil, time_format: nil })
      end

      it "should include matches info" do
        matches_info = {
          whole: "foo\nbar",
          matches: [
            {
              key: "foo", matched: "foo", pos: [0, 3]
            },
            {
              key: "bar", matched: "bar", pos: [4, 7]
            }
          ]
        }

        expect(subject[:matches]).to include matches_info
      end
    end

    describe "detect only continuos patterns" do
      let(:target_path) { File.expand_path("./spec/support/fixtures/error0.log", Rails.root) }
      let(:params) do
        params = {
          format_firstline: "foo",
          time_format: "time_format",
        }
        params["format1"] = "(?<foo>foo)\n"
        params["format2"] = "(?<bar>baz)"
        3.upto(Fluentd::Setting::InTail::MULTI_LINE_MAX_FORMAT_COUNT) do |i|
          params["format#{i}"] = ""
        end
        { params: params }
      end

      it "shouldn't match" do
        expect(subject[:matches]).to eq []
      end
    end

    describe "example on document" do
      # http://docs.fluentd.org/articles/in_tail
      let(:target_path) { File.expand_path("./spec/support/fixtures/multiline_example.log", Rails.root) }

      let :params do
        params = {
          format_firstline: "\\d{4}-\\d{1,2}-\\d{1,2}",
          "format1" => "^(?<time>\\d{4}-\\d{1,2}-\\d{1,2} \\d{1,2}:\\d{1,2}:\\d{1,2}) \\[(?<thread>.*)\\] (?<level>[^\\s]+)(?<message>.*)",
          time_format: "time_format",
        }
        2.upto(Fluentd::Setting::InTail::MULTI_LINE_MAX_FORMAT_COUNT) do |i|
          params["format#{i}"] = ""
        end
        { params: params }
      end

      it "should include matches info" do
        matches_info = 
          [
            {
              :whole => "2013-3-03 14:27:33 [main] INFO  Main - Start\n",
              :matches => [
                {:key => "time", :matched => "2013-3-03 14:27:33", :pos => [0, 18]},
                {:key => "thread", :matched => "main", :pos => [20, 24]},
                {:key => "level", :matched => "INFO", :pos => [26, 30]},
                {:key => "message", :matched => "  Main - Start\n", :pos => [30, 45]}
              ]
            },
            {
              :whole => "2013-3-03 14:27:33 [main] ERROR Main - Exception\njavax.management.RuntimeErrorException: null\n    at Main.main(Main.java:16) ~[bin/:na]\n",
              :matches => [
                {:key => "time", :matched => "2013-3-03 14:27:33", :pos => [0, 18]},
                {:key => "thread", :matched => "main", :pos => [20, 24]},
                {:key => "level", :matched => "ERROR", :pos => [26, 31]},
                {:key => "message", :matched => " Main - Exception\njavax.management.RuntimeErrorException: null\n    at Main.main(Main.java:16) ~[bin/:na]\n", :pos => [31, 136]},
              ]
            },
            {
              :whole => "2013-3-03 14:27:33 [main] INFO  Main - End",
              :matches => [
                {:key => "time", :matched => "2013-3-03 14:27:33", :pos => [0, 18]},
                {:key => "thread", :matched => "main", :pos => [20, 24]},
                {:key => "level", :matched => "INFO", :pos => [26, 30]},
                {:key => "message", :matched => "  Main - End", :pos => [30, 42]},
              ]
            }
        ]
        expect(subject[:matches]).to eq matches_info
      end
    end
  end
end