Contents

# frozen_string_literal: true

RSpec.describe Fear::Extractor::Pattern do
  describe ".new" do
    context "invalid syntax" do
      subject { -> { described_class.new("[1, 2, 3") } }

      it "shows where the error happens" do
        is_expected.to raise_error(Fear::PatternSyntaxError) { |error|
          lines = error.message.split("\n")
          expect(lines[0]).to start_with("Expected one of")
            .and(end_with("at line 1, column 9 (byte 9):"))

          expect(lines[1]).to eq("[1, 2, 3")
          expect(lines[2]).to eq("~~~~~~~~^")
        }
      end
    end
  end

  describe "#failure_reason" do
    let(:pattern) { described_class.new("Some([:err, 444])") }

    context "not defined" do
      subject { pattern.failure_reason(Fear.some([:err, 445])) }

      it { is_expected.to eq(<<~MSG.strip) }
        Expected `445` to match:
        Some([:err, 444])
        ~~~~~~~~~~~~^
      MSG
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
fear-1.2.0	spec/fear/extractor/pattern_spec.rb
fear-1.1.0	spec/fear/extractor/pattern_spec.rb