require "../../spec_helper"

private def flycheck
  output = IO::Memory.new
  Ameba::Formatter::FlycheckFormatter.new output
end

module Ameba::Formatter
  describe FlycheckFormatter do
    context "problems not found" do
      it "reports nothing" do
        subject = flycheck
        subject.source_finished Source.new ""
        subject.output.to_s.empty?.should be_true
      end
    end

    context "when problems found" do
      it "reports an error" do
        s = Source.new "a = 1", "source.cr"
        s.error DummyRule.new, s.location(1, 2), "message"
        subject = flycheck
        subject.source_finished s
        subject.output.to_s.should eq "source.cr:1:2: E: message\n"
      end

      it "properly reports multi-line message" do
        s = Source.new "a = 1", "source.cr"
        s.error DummyRule.new, s.location(1, 2), "multi\nline"
        subject = flycheck
        subject.source_finished s
        subject.output.to_s.should eq "source.cr:1:2: E: multi line\n"
      end

      it "reports nothing if location was not set" do
        s = Source.new "a = 1", "source.cr"
        s.error DummyRule.new, nil, "message"
        subject = flycheck
        subject.source_finished s
        subject.output.to_s.should eq ""
      end
    end
  end
end