# frozen_string_literal: true

require "dependency_collector"

RSpec.describe DependencyCollector do
  alias_matcher :be_a_build_requirement, :be_build

  subject(:collector) { described_class.new }

  describe "#add" do
    resource = Resource.new

    context "when xz, unzip and bzip2 are not available" do
      it "creates a resource dependency from a '.xz' URL" do
        resource.url("https://brew.sh/foo.xz")
        allow_any_instance_of(Object).to receive(:which).with("xz")
        expect(collector.add(resource)).to eq(Dependency.new("xz", [:build, :test, :implicit]))
      end

      it "creates a resource dependency from a '.zip' URL" do
        resource.url("https://brew.sh/foo.zip")
        allow_any_instance_of(Object).to receive(:which).with("unzip")
        expect(collector.add(resource)).to eq(Dependency.new("unzip", [:build, :test, :implicit]))
      end

      it "creates a resource dependency from a '.bz2' URL" do
        resource.url("https://brew.sh/foo.tar.bz2")
        allow_any_instance_of(Object).to receive(:which).with("bzip2")
        expect(collector.add(resource)).to eq(Dependency.new("bzip2", [:build, :test, :implicit]))
      end
    end

    context "when xz, zip and bzip2 are available" do
      it "does not create a resource dependency from a '.xz' URL" do
        resource.url("https://brew.sh/foo.xz")
        allow_any_instance_of(Object).to receive(:which).with("xz").and_return(Pathname.new("foo"))
        expect(collector.add(resource)).to be_nil
      end

      it "does not create a resource dependency from a '.zip' URL" do
        resource.url("https://brew.sh/foo.zip")
        allow_any_instance_of(Object).to receive(:which).with("unzip").and_return(Pathname.new("foo"))
        expect(collector.add(resource)).to be_nil
      end

      it "does not create a resource dependency from a '.bz2' URL" do
        resource.url("https://brew.sh/foo.tar.bz2")
        allow_any_instance_of(Object).to receive(:which).with("bzip2").and_return(Pathname.new("foo"))
        expect(collector.add(resource)).to be_nil
      end
    end
  end
end