require_relative "../../spec_helper"
describe CodeLister do
  context "#files_from_command" do
    it "returns empty result with invalid parameter" do
      expect(CodeLister.files_from_command("invalid-command")).to eq []
    end
    describe "use with `find` command" do
      it "returns result list when base_dir is a not a current directory" do
        base_dir = File.expand_path(File.dirname(__FILE__) + "/../../fixtures")
        files = CodeLister.files_from_command("find ./spec/fixtures -type f -iname '*.rb'")
        files = CodeLister.remove_prefix(files, base_dir).sort
        expect(files.sort)
          .to eq [
            "./demo1.xxx.rb",
            "./demo1.yyy.rb",
            "./demo2.xxx.rb",
            "./demo2.yyy.rb"
          ]
      end
      it "returns empty list when no match found" do
        base_dir = File.expand_path(File.dirname(__FILE__) + "/../fixtures")
        files = CodeLister.files_from_command("find ./spec/fixtures -type f -iname '*.XYZ'")
        files = CodeLister.remove_prefix(files, base_dir).sort
        expect(files).to be_empty
      end
    end
  end

  context "#files" do
    it "works with invalid input" do
      expect { CodeLister.files("bad-args") }.to raise_error
    end

    it "works with valid input" do
      expect(CodeLister.files(base_dir: "spec/fixtures", exts: %w[xxx.rb])).to eq ["./demo1.xxx.rb",
                                                                                   "./demo2.xxx.rb"]
    end

    it "returns empty result if no match found" do
      expect(CodeLister.files(base_dir: "spec/fixtures", exts: %w[invalid-extension])).to eq []
    end
  end

  context "#filter" do
    before :each do
      @file_list = CodeLister.files(base_dir: "spec/fixtures", exts: %w[xxx.rb], recursive: true)
    end

    it "works with empty filter inputs" do
      expect(CodeLister.filter(@file_list, inc_words: [], exc_words: [])).to eq @file_list
    end

    it "works with unique match" do
      expect(CodeLister.filter(@file_list, inc_words: %w[demo1])).to eq ["./demo1.xxx.rb"]
    end

    it "works with multiples matches" do
      expect(CodeLister.filter(@file_list, inc_words: %w[demo])).to eq ["./demo1.xxx.rb",
                                                                        "./demo2.xxx.rb"]
    end

    it "filters out the words that we don't want" do
      expect(CodeLister.filter(@file_list, exc_words: %w[demo1])).to eq ["./demo2.xxx.rb"]
    end

    it "ignores case by default" do
      expect(CodeLister.filter(@file_list, inc_words: %w[DeMo1])).to eq ["./demo1.xxx.rb"]
    end

    it "does not ignore case if specified" do
      expect(CodeLister.filter(@file_list, inc_words: %w[DeMo1], ignore_case: false)).to be_empty
    end
  end
end