# frozen_string_literal: true

require "spec_helper"

RSpec.describe <%= config.dig(:gem, :class) %>::CLI do
  subject(:cli) { described_class.start command_line }

  include_context "with temporary directory"

  let(:options) { [] }
  let(:command_line) { Array(command).concat options }

  shared_examples_for "a config command" do
    context "with no options" do
      it "prints help text" do
        result = -> { cli }
        expect(&result).to output(/Manage gem configuration./).to_stdout
      end
    end
  end

  shared_examples_for "a version command" do
    it "prints version" do
      result = -> { cli }
      pattern = /#{Regexp.escape <%= config.dig(:gem, :class) %>::Identity::VERSION_LABEL}\n/o

      expect(result).to output(pattern).to_stdout
    end
  end

  shared_examples_for "a help command" do
    it "prints usage" do
      result = -> { cli }
      pattern = /#{Regexp.escape <%= config.dig(:gem, :class) %>::Identity::VERSION_LABEL}\scommands:\n/o

      expect(result).to output(pattern).to_stdout
    end
  end

  describe "--config" do
    let(:command) { "--config" }

    it_behaves_like "a config command"
  end

  describe "-c" do
    let(:command) { "-c" }

    it_behaves_like "a config command"
  end

  describe "--version" do
    let(:command) { "--version" }

    it_behaves_like "a version command"
  end

  describe "-v" do
    let(:command) { "-v" }

    it_behaves_like "a version command"
  end

  describe "--help" do
    let(:command) { "--help" }

    it_behaves_like "a help command"
  end

  describe "-h" do
    let(:command) { "-h" }

    it_behaves_like "a help command"
  end

  context "with no command" do
    let(:command) { nil }

    it_behaves_like "a help command"
  end
end