brew/Library/Homebrew/test/dev-cmd/pr-pull_spec.rb

# typed: false
# frozen_string_literal: true

require "dev-cmd/pr-pull"
require "utils/git"
require "tap"
require "cmd/shared_examples/args_parse"

describe "brew pr-pull" do
  it_behaves_like "parseable arguments"

  describe Homebrew do
    let(:formula_rebuild) do
      <<~EOS
        class Foo < Formula
          desc "Helpful description"
          url "https://brew.sh/foo-1.0.tgz"
        end
      EOS
    end
    let(:formula_revision) do
      <<~EOS
        class Foo < Formula
          url "https://brew.sh/foo-1.0.tgz"
          revision 1
        end
      EOS
    end
    let(:formula_version) do
      <<~EOS
        class Foo < Formula
          url "https://brew.sh/foo-2.0.tgz"
        end
      EOS
    end
    let(:formula) do
      <<~EOS
        class Foo < Formula
          url "https://brew.sh/foo-1.0.tgz"
        end
      EOS
    end
    let(:formula_file) { path/"Formula/foo.rb" }
    let(:path) { (Tap::TAP_DIRECTORY/"homebrew/homebrew-foo").extend(GitRepositoryExtension) }

    describe "#autosquash!" do
      it "squashes a formula correctly" do
        secondary_author = "Someone Else <me@example.com>"
        (path/"Formula").mkpath
        formula_file.write(formula)
        cd path do
          safe_system Utils::Git.git, "init"
          safe_system Utils::Git.git, "add", formula_file
          safe_system Utils::Git.git, "commit", "-m", "foo 1.0 (new formula)"
          original_hash = `git rev-parse HEAD`.chomp
          File.open(formula_file, "w") { |f| f.write(formula_revision) }
          safe_system Utils::Git.git, "commit", formula_file, "-m", "revision"
          File.open(formula_file, "w") { |f| f.write(formula_version) }
          safe_system Utils::Git.git, "commit", formula_file, "-m", "version", "--author=#{secondary_author}"
          described_class.autosquash!(original_hash, path: path)
          expect(path.git_commit_message).to include("foo 2.0")
          expect(path.git_commit_message).to include("Co-authored-by: #{secondary_author}")
        end
      end
    end

    describe "#signoff!" do
      it "signs off a formula" do
        (path/"Formula").mkpath
        formula_file.write(formula)
        cd path do
          safe_system Utils::Git.git, "init"
          safe_system Utils::Git.git, "add", formula_file
          safe_system Utils::Git.git, "commit", "-m", "foo 1.0 (new formula)"
        end
        described_class.signoff!(path)
        expect(path.git_commit_message).to include("Signed-off-by:")
      end
    end

    describe "#determine_bump_subject" do
      it "correctly bumps a new formula" do
        expect(described_class.determine_bump_subject("", formula, formula_file)).to eq("foo 1.0 (new formula)")
      end

      it "correctly bumps a formula version" do
        expect(described_class.determine_bump_subject(formula, formula_version, formula_file)).to eq("foo 2.0")
      end

      it "correctly bumps a formula revision with reason" do
        expect(described_class.determine_bump_subject(
                 formula, formula_revision, formula_file, reason: "for fun"
               )).to eq("foo: revision for fun")
      end

      it "correctly bumps a formula rebuild" do
        expect(described_class.determine_bump_subject(formula, formula_rebuild, formula_file)).to eq("foo: rebuild")
      end

      it "correctly bumps a formula deletion" do
        expect(described_class.determine_bump_subject(formula, "", formula_file)).to eq("foo: delete")
      end
    end
  end
end