path: root/spec/bundler/install/gems/flex_spec.rb

# frozen_string_literal: true

RSpec.describe "bundle flex_install" do
  it "installs the gems as expected" do
    install_gemfile <<-G
      source "file://#{gem_repo1}"
      gem 'rack'
    G

    expect(the_bundle).to include_gems "rack 1.0.0"
    expect(the_bundle).to be_locked
  end

  it "installs even when the lockfile is invalid" do
    install_gemfile <<-G
      source "file://#{gem_repo1}"
      gem 'rack'
    G

    expect(the_bundle).to include_gems "rack 1.0.0"
    expect(the_bundle).to be_locked

    gemfile <<-G
      source "file://#{gem_repo1}"
      gem 'rack', '1.0'
    G

    bundle :install
    expect(the_bundle).to include_gems "rack 1.0.0"
    expect(the_bundle).to be_locked
  end

  it "keeps child dependencies at the same version" do
    build_repo2

    install_gemfile <<-G
      source "file://#{gem_repo2}"
      gem "rack-obama"
    G

    expect(the_bundle).to include_gems "rack 1.0.0", "rack-obama 1.0.0"

    update_repo2
    install_gemfile <<-G
      source "file://#{gem_repo2}"
      gem "rack-obama", "1.0"
    G

    expect(the_bundle).to include_gems "rack 1.0.0", "rack-obama 1.0.0"
  end

  describe "adding new gems" do
    it "installs added gems without updating previously installed gems" do
      build_repo2

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
      G

      update_repo2

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
        gem 'activesupport', '2.3.5'
      G

      expect(the_bundle).to include_gems "rack 1.0.0", "activesupport 2.3.5"
    end

    it "keeps child dependencies pinned" do
      build_repo2

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem "rack-obama"
      G

      update_repo2

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem "rack-obama"
        gem "thin"
      G

      expect(the_bundle).to include_gems "rack 1.0.0", "rack-obama 1.0", "thin 1.0"
    end
  end

  describe "removing gems" do
    it "removes gems without changing the versions of remaining gems" do
      build_repo2
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
        gem 'activesupport', '2.3.5'
      G

      update_repo2

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
      G

      expect(the_bundle).to include_gems "rack 1.0.0"
      expect(the_bundle).not_to include_gems "activesupport 2.3.5"

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
        gem 'activesupport', '2.3.2'
      G

      expect(the_bundle).to include_gems "rack 1.0.0", "activesupport 2.3.2"
    end

    it "removes top level dependencies when removed from the Gemfile while leaving other dependencies intact" do
      build_repo2
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
        gem 'activesupport', '2.3.5'
      G

      update_repo2

      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack'
      G

      expect(the_bundle).not_to include_gems "activesupport 2.3.5"
    end

    it "removes child dependencies" do
      build_repo2
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'rack-obama'
        gem 'activesupport'
      G

      expect(the_bundle).to include_gems "rack 1.0.0", "rack-obama 1.0.0", "activesupport 2.3.5"

      update_repo2
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem 'activesupport'
      G

      expect(the_bundle).to include_gems "activesupport 2.3.5"
      expect(the_bundle).not_to include_gems "rack-obama", "rack"
    end
  end

  describe "when Gemfile conflicts with lockfile" do
    before(:each) do
      build_repo2
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem "rack_middleware"
      G

      expect(the_bundle).to include_gems "rack_middleware 1.0", "rack 0.9.1"

      build_repo2
      update_repo2 do
        build_gem "rack-obama", "2.0" do |s|
          s.add_dependency "rack", "=1.2"
        end
        build_gem "rack_middleware", "2.0" do |s|
          s.add_dependency "rack", ">=1.0"
        end
      end

      gemfile <<-G
        source "file://#{gem_repo2}"
        gem "rack-obama", "2.0"
        gem "rack_middleware"
      G
    end

    it "does not install gems whose dependencies are not met" do
      bundle :install
      ruby <<-RUBY
        require 'bundler/setup'
      RUBY
      expect(err).to match(/could not find gem 'rack-obama/i)
    end

    it "suggests bundle update when the Gemfile requires different versions than the lock" do
      nice_error = <<-E.strip.gsub(/^ {8}/, "")
        Bundler could not find compatible versions for gem "rack":
          In snapshot (Gemfile.lock):
            rack (= 0.9.1)

          In Gemfile:
            rack-obama (= 2.0) was resolved to 2.0, which depends on
              rack (= 1.2)

            rack_middleware was resolved to 1.0, which depends on
              rack (= 0.9.1)

        Running `bundle update` will rebuild your snapshot from scratch, using only
        the gems in your Gemfile, which may resolve the conflict.
      E

      bundle :install, :retry => 0
      expect(last_command.bundler_err).to end_with(nice_error)
    end
  end

  describe "subtler cases" do
    before :each do
      install_gemfile <<-G
        source "file://#{gem_repo1}"
        gem "rack"
        gem "rack-obama"
      G

      gemfile <<-G
        source "file://#{gem_repo1}"
        gem "rack", "0.9.1"
        gem "rack-obama"
      G
    end

    it "does something" do
      expect do
        bundle "install"
      end.not_to change { File.read(bundled_app("Gemfile.lock")) }

      expect(out).to include("rack = 0.9.1")
      expect(out).to include("locked at 1.0.0")
      expect(out).to include("bundle update rack")
    end

    it "should work when you update" do
      bundle "update rack"
    end
  end

  describe "when adding a new source" do
    it "updates the lockfile", :bundler => "< 2" do
      build_repo2
      install_gemfile! <<-G
        source "file://localhost#{gem_repo1}"
        gem "rack"
      G
      install_gemfile! <<-G
        source "file://localhost#{gem_repo1}"
        source "file://localhost#{gem_repo2}"
        gem "rack"
      G

      lockfile_should_be <<-L
      GEM
        remote: file://localhost#{gem_repo1}/
        remote: file://localhost#{gem_repo2}/
        specs:
          rack (1.0.0)

      PLATFORMS
        ruby

      DEPENDENCIES
        rack

      BUNDLED WITH
         #{Bundler::VERSION}
      L
    end

    it "updates the lockfile", :bundler => "2" do
      build_repo2
      install_gemfile! <<-G
        source "file://localhost#{gem_repo1}"
        gem "rack"
      G

      install_gemfile! <<-G
        source "file://localhost#{gem_repo1}"
        source "file://localhost#{gem_repo2}" do
        end
        gem "rack"
      G

      lockfile_should_be <<-L
      GEM
        remote: file://localhost#{gem_repo1}/
        specs:
          rack (1.0.0)

      GEM
        remote: file://localhost#{gem_repo2}/
        specs:

      PLATFORMS
        #{lockfile_platforms}

      DEPENDENCIES
        rack

      BUNDLED WITH
         #{Bundler::VERSION}
      L
    end
  end

  # This was written to test github issue #636
  describe "when a locked child dependency conflicts" do
    before(:each) do
      build_repo2 do
        build_gem "capybara", "0.3.9" do |s|
          s.add_dependency "rack", ">= 1.0.0"
        end

        build_gem "rack", "1.1.0"
        build_gem "rails", "3.0.0.rc4" do |s|
          s.add_dependency "rack", "~> 1.1.0"
        end

        build_gem "rack", "1.2.1"
        build_gem "rails", "3.0.0" do |s|
          s.add_dependency "rack", "~> 1.2.1"
        end
      end
    end

    it "prints the correct error message" do
      # install Rails 3.0.0.rc
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem "rails", "3.0.0.rc4"
        gem "capybara", "0.3.9"
      G

      # upgrade Rails to 3.0.0 and then install again
      install_gemfile <<-G
        source "file://#{gem_repo2}"
        gem "rails", "3.0.0"
        gem "capybara", "0.3.9"
      G

      expect(out).to include("Gemfile.lock")
    end
  end
end