# frozen_string_literal: true

RSpec.describe "bundle install with gems on multiple sources" do
  # repo1 is built automatically before all of the specs run
  # it contains rack-obama 1.0.0 and rack 0.9.1 & 1.0.0 amongst other gems

  context "without source affinity" do
    before do
      # Oh no! Someone evil is trying to hijack rack :(
      # need this to be broken to check for correct source ordering
      build_repo gem_repo3 do
        build_gem "rack", repo3_rack_version do |s|
          s.write "lib/rack.rb", "RACK = 'FAIL'"
        end
      end
    end

    context "with multiple toplevel sources" do
      let(:repo3_rack_version) { "1.0.0" }

      before do
        gemfile <<-G
          source "https://gem.repo3"
          source "https://gem.repo1"
          gem "rack-obama"
          gem "rack"
        G
      end

      it "refuses to install mismatched checksum because one gem has been tampered with", bundler: "< 3" do
        lockfile <<~L
          GEM
            remote: https://gem.repo3/
            remote: https://gem.repo1/
            specs:
              rack (1.0.0)

          PLATFORMS
            #{local_platform}

          DEPENDENCIES
            depends_on_rack!

          BUNDLED WITH
            #{Bundler::VERSION}
        L

        bundle :install, artifice: "compact_index", raise_on_error: false

        expect(exitstatus).to eq(37)
        expect(err).to eq <<~E.strip
          [DEPRECATED] Your Gemfile contains multiple global sources. Using `source` more than once without a block is a security risk, and may result in installing unexpected gems. To resolve this warning, use a block to indicate which gems should come from the secondary source.
          Bundler found mismatched checksums. This is a potential security risk.
            #{checksum_to_lock(gem_repo1, "rack", "1.0.0")}
              from the API at https://gem.repo1/
            #{checksum_to_lock(gem_repo3, "rack", "1.0.0")}
              from the API at https://gem.repo3/

          Mismatched checksums each have an authoritative source:
            1. the API at https://gem.repo1/
            2. the API at https://gem.repo3/
          You may need to alter your Gemfile sources to resolve this issue.

          To ignore checksum security warnings, disable checksum validation with
            `bundle config set --local disable_checksum_validation true`
        E
      end

      context "when checksum validation is disabled" do
        before do
          bundle "config set --local disable_checksum_validation true"
        end

        it "warns about ambiguous gems, but installs anyway, prioritizing sources last to first", bundler: "< 3" do
          bundle :install, artifice: "compact_index"

          expect(err).to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(err).to include("Installed from: https://gem.repo1")
          expect(the_bundle).to include_gems("rack-obama 1.0.0", "rack 1.0.0", source: "remote1")
        end

        it "does not use the full index unnecessarily", bundler: "< 3" do
          bundle :install, artifice: "compact_index", verbose: true

          expect(out).to include("https://gem.repo1/versions")
          expect(out).to include("https://gem.repo3/versions")
          expect(out).not_to include("https://gem.repo1/quick/Marshal.4.8/")
          expect(out).not_to include("https://gem.repo3/quick/Marshal.4.8/")
        end

        it "fails", bundler: "3" do
          bundle :install, artifice: "compact_index", raise_on_error: false
          expect(err).to include("Each source after the first must include a block")
          expect(exitstatus).to eq(4)
        end
      end
    end

    context "when different versions of the same gem are in multiple sources" do
      let(:repo3_rack_version) { "1.2" }

      before do
        gemfile <<-G
          source "https://gem.repo3"
          source "https://gem.repo1"
          gem "rack-obama"
          gem "rack", "1.0.0" # force it to install the working version in repo1
        G
      end

      it "warns about ambiguous gems, but installs anyway", bundler: "< 3" do
        bundle :install, artifice: "compact_index"
        expect(err).to include("Warning: the gem 'rack' was found in multiple sources.")
        expect(err).to include("Installed from: https://gem.repo1")
        expect(the_bundle).to include_gems("rack-obama 1.0.0", "rack 1.0.0", source: "remote1")
      end

      it "fails", bundler: "3" do
        bundle :install, artifice: "compact_index", raise_on_error: false
        expect(err).to include("Each source after the first must include a block")
        expect(exitstatus).to eq(4)
      end
    end
  end

  context "without source affinity, and a stdlib gem present in one of the sources", :ruby_repo do
    let(:default_json_version) { ruby "gem 'json'; require 'json'; puts JSON::VERSION" }

    before do
      build_repo2 do
        build_gem "json", default_json_version
      end

      build_repo4 do
        build_gem "foo" do |s|
          s.add_dependency "json", default_json_version
        end
      end

      gemfile <<-G
        source "https://gem.repo2"
        source "https://gem.repo4"

        gem "foo"
      G
    end

    it "works in standalone mode", bundler: "< 3" do
      gem_checksum = checksum_digest(gem_repo4, "foo", "1.0")
      bundle "install --standalone", artifice: "compact_index", env: { "BUNDLER_SPEC_FOO_CHECKSUM" => gem_checksum }
    end
  end

  context "with source affinity" do
    context "with sources given by a block" do
      before do
        # Oh no! Someone evil is trying to hijack rack :(
        # need this to be broken to check for correct source ordering
        build_repo gem_repo3 do
          build_gem "rack", "1.0.0" do |s|
            s.write "lib/rack.rb", "RACK = 'FAIL'"
          end

          build_gem "rack-obama" do |s|
            s.add_dependency "rack"
          end
        end

        gemfile <<-G
          source "https://gem.repo3"
          source "https://gem.repo1" do
            gem "thin" # comes first to test name sorting
            gem "rack"
          end
          gem "rack-obama" # should come from repo3!
        G
      end

      it "installs the gems without any warning" do
        bundle :install, artifice: "compact_index"
        expect(err).not_to include("Warning")
        expect(the_bundle).to include_gems("rack-obama 1.0.0")
        expect(the_bundle).to include_gems("rack 1.0.0", source: "remote1")
      end

      it "can cache and deploy" do
        bundle :cache, artifice: "compact_index"

        expect(bundled_app("vendor/cache/rack-1.0.0.gem")).to exist
        expect(bundled_app("vendor/cache/rack-obama-1.0.gem")).to exist

        bundle "config set --local deployment true"
        bundle :install, artifice: "compact_index"

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

    context "with sources set by an option" do
      before do
        # Oh no! Someone evil is trying to hijack rack :(
        # need this to be broken to check for correct source ordering
        build_repo gem_repo3 do
          build_gem "rack", "1.0.0" do |s|
            s.write "lib/rack.rb", "RACK = 'FAIL'"
          end

          build_gem "rack-obama" do |s|
            s.add_dependency "rack"
          end
        end

        install_gemfile <<-G, artifice: "compact_index"
          source "https://gem.repo3"
          gem "rack-obama" # should come from repo3!
          gem "rack", :source => "https://gem.repo1"
        G
      end

      it "installs the gems without any warning" do
        expect(err).not_to include("Warning")
        expect(the_bundle).to include_gems("rack-obama 1.0.0", "rack 1.0.0")
      end
    end

    context "when a pinned gem has an indirect dependency in the pinned source" do
      before do
        build_repo gem_repo3 do
          build_gem "depends_on_rack", "1.0.1" do |s|
            s.add_dependency "rack"
          end
        end

        # we need a working rack gem in repo3
        update_repo gem_repo3 do
          build_gem "rack", "1.0.0"
        end

        gemfile <<-G
          source "https://gem.repo2"
          source "https://gem.repo3" do
            gem "depends_on_rack"
          end
        G
      end

      context "and not in any other sources" do
        before do
          build_repo(gem_repo2) {}
        end

        it "installs from the same source without any warning" do
          bundle :install, artifice: "compact_index"
          expect(err).not_to include("Warning")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", source: "remote3")
        end
      end

      context "and in another source" do
        before do
          # need this to be broken to check for correct source ordering
          build_repo gem_repo2 do
            build_gem "rack", "1.0.0" do |s|
              s.write "lib/rack.rb", "RACK = 'FAIL'"
            end
          end
        end

        it "installs from the same source without any warning" do
          bundle :install, artifice: "compact_index"

          expect(err).not_to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", source: "remote3")

          # In https://github.com/bundler/bundler/issues/3585 this failed
          # when there is already a lock file, and the gems are missing, so try again
          system_gems []
          bundle :install, artifice: "compact_index"

          expect(err).not_to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", source: "remote3")
        end
      end
    end

    context "when a pinned gem has an indirect dependency in a different source" do
      before do
        # In these tests, we need a working rack gem in repo2 and not repo3

        build_repo gem_repo3 do
          build_gem "depends_on_rack", "1.0.1" do |s|
            s.add_dependency "rack"
          end
        end

        build_repo gem_repo2 do
          build_gem "rack", "1.0.0"
        end
      end

      context "and not in any other sources" do
        before do
          install_gemfile <<-G, artifice: "compact_index"
            source "https://gem.repo2"
            source "https://gem.repo3" do
              gem "depends_on_rack"
            end
          G
        end

        it "installs from the other source without any warning" do
          expect(err).not_to include("Warning")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0")
        end
      end

      context "and in yet another source" do
        before do
          gemfile <<-G
            source "https://gem.repo1"
            source "https://gem.repo2"
            source "https://gem.repo3" do
              gem "depends_on_rack"
            end
          G
        end

        it "fails when the two sources don't have the same checksum", bundler: "< 3" do
          bundle :install, artifice: "compact_index", raise_on_error: false

          expect(err).to eq(<<~E.strip)
            [DEPRECATED] Your Gemfile contains multiple global sources. Using `source` more than once without a block is a security risk, and may result in installing unexpected gems. To resolve this warning, use a block to indicate which gems should come from the secondary source.
            Bundler found mismatched checksums. This is a potential security risk.
              #{checksum_to_lock(gem_repo2, "rack", "1.0.0")}
                from the API at https://gem.repo2/
              #{checksum_to_lock(gem_repo1, "rack", "1.0.0")}
                from the API at https://gem.repo1/

            Mismatched checksums each have an authoritative source:
              1. the API at https://gem.repo2/
              2. the API at https://gem.repo1/
            You may need to alter your Gemfile sources to resolve this issue.

            To ignore checksum security warnings, disable checksum validation with
              `bundle config set --local disable_checksum_validation true`
          E
          expect(exitstatus).to eq(37)
        end

        it "fails when the two sources agree, but the local gem calculates a different checksum", bundler: "< 3" do
          rack_checksum = "c0ffee11" * 8
          bundle :install, artifice: "compact_index", env: { "BUNDLER_SPEC_RACK_CHECKSUM" => rack_checksum }, raise_on_error: false

          expect(err).to eq(<<~E.strip)
            [DEPRECATED] Your Gemfile contains multiple global sources. Using `source` more than once without a block is a security risk, and may result in installing unexpected gems. To resolve this warning, use a block to indicate which gems should come from the secondary source.
            Bundler found mismatched checksums. This is a potential security risk.
              rack (1.0.0) sha256=#{rack_checksum}
                from the API at https://gem.repo2/
                and the API at https://gem.repo1/
              #{checksum_to_lock(gem_repo2, "rack", "1.0.0")}
                from the gem at #{default_bundle_path("cache", "rack-1.0.0.gem")}

            If you trust the API at https://gem.repo2/, to resolve this issue you can:
              1. remove the gem at #{default_bundle_path("cache", "rack-1.0.0.gem")}
              2. run `bundle install`

            To ignore checksum security warnings, disable checksum validation with
              `bundle config set --local disable_checksum_validation true`
          E
          expect(exitstatus).to eq(37)
        end

        it "installs from the other source and warns about ambiguous gems when the sources have the same checksum", bundler: "< 3" do
          gem_checksum = checksum_digest(gem_repo2, "rack", "1.0.0")
          bundle :install, artifice: "compact_index", env: { "BUNDLER_SPEC_RACK_CHECKSUM" => gem_checksum, "DEBUG" => "1" }

          expect(err).to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(err).to include("Installed from: https://gem.repo2")

          checksums = checksums_section_when_existing do |c|
            c.checksum gem_repo3, "depends_on_rack", "1.0.1"
            c.checksum gem_repo2, "rack", "1.0.0"
          end

          expect(lockfile).to eq <<~L
            GEM
              remote: https://gem.repo1/
              remote: https://gem.repo2/
              specs:
                rack (1.0.0)

            GEM
              remote: https://gem.repo3/
              specs:
                depends_on_rack (1.0.1)
                  rack

            PLATFORMS
              #{lockfile_platforms}

            DEPENDENCIES
              depends_on_rack!
            #{checksums}
            BUNDLED WITH
               #{Bundler::VERSION}
          L

          previous_lockfile = lockfile
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0")
          expect(lockfile).to eq(previous_lockfile)
        end

        it "installs from the other source and warns about ambiguous gems when checksum validation is disabled", bundler: "< 3" do
          bundle "config set --local disable_checksum_validation true"
          bundle :install, artifice: "compact_index"

          expect(err).to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(err).to include("Installed from: https://gem.repo2")

          checksums = checksums_section_when_existing do |c|
            c.no_checksum "depends_on_rack", "1.0.1"
            c.no_checksum "rack", "1.0.0"
          end

          expect(lockfile).to eq <<~L
            GEM
              remote: https://gem.repo1/
              remote: https://gem.repo2/
              specs:
                rack (1.0.0)

            GEM
              remote: https://gem.repo3/
              specs:
                depends_on_rack (1.0.1)
                  rack

            PLATFORMS
              #{lockfile_platforms}

            DEPENDENCIES
              depends_on_rack!
            #{checksums}
            BUNDLED WITH
               #{Bundler::VERSION}
          L

          previous_lockfile = lockfile
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0")
          expect(lockfile).to eq(previous_lockfile)
        end

        it "fails", bundler: "3" do
          bundle :install, artifice: "compact_index", raise_on_error: false
          expect(err).to include("Each source after the first must include a block")
          expect(exitstatus).to eq(4)
        end
      end

      context "and only the dependency is pinned" do
        before do
          # need this to be broken to check for correct source ordering
          build_repo gem_repo2 do
            build_gem "rack", "1.0.0" do |s|
              s.write "lib/rack.rb", "RACK = 'FAIL'"
            end
          end

          gemfile <<-G
            source "https://gem.repo3" # contains depends_on_rack
            source "https://gem.repo2" # contains broken rack

            gem "depends_on_rack" # installed from gem_repo3
            gem "rack", :source => "https://gem.repo1"
          G
        end

        it "installs the dependency from the pinned source without warning", bundler: "< 3" do
          bundle :install, artifice: "compact_index"

          expect(err).not_to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0")

          # In https://github.com/rubygems/bundler/issues/3585 this failed
          # when there is already a lock file, and the gems are missing, so try again
          system_gems []
          bundle :install, artifice: "compact_index"

          expect(err).not_to include("Warning: the gem 'rack' was found in multiple sources.")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0")
        end

        it "fails", bundler: "3" do
          bundle :install, artifice: "compact_index", raise_on_error: false
          expect(err).to include("Each source after the first must include a block")
          expect(exitstatus).to eq(4)
        end
      end
    end

    context "when a top-level gem can only be found in an scoped source" do
      before do
        build_repo2

        build_repo gem_repo3 do
          build_gem "private_gem_1", "1.0.0"
          build_gem "private_gem_2", "1.0.0"
        end

        gemfile <<-G
          source "https://gem.repo2"

          gem "private_gem_1"

          source "https://gem.repo3" do
            gem "private_gem_2"
          end
        G
      end

      it "fails" do
        bundle :install, artifice: "compact_index", raise_on_error: false
        expect(err).to include("Could not find gem 'private_gem_1' in rubygems repository https://gem.repo2/, cached gems or installed locally.")
      end
    end

    context "when an indirect dependency can't be found in the aggregate rubygems source", bundler: "< 3" do
      before do
        build_repo2

        build_repo gem_repo3 do
          build_gem "depends_on_missing", "1.0.1" do |s|
            s.add_dependency "missing"
          end
        end

        gemfile <<-G
          source "https://gem.repo2"

          source "https://gem.repo3"

          gem "depends_on_missing"
        G
      end

      it "fails" do
        bundle :install, artifice: "compact_index", raise_on_error: false
        expect(err).to end_with <<~E.strip
          Could not find compatible versions

          Because every version of depends_on_missing depends on missing >= 0
            and missing >= 0 could not be found in any of the sources,
            depends_on_missing cannot be used.
          So, because Gemfile depends on depends_on_missing >= 0,
            version solving has failed.
        E
      end
    end

    context "when a top-level gem has an indirect dependency" do
      before do
        build_repo gem_repo2 do
          build_gem "depends_on_rack", "1.0.1" do |s|
            s.add_dependency "rack"
          end
        end

        build_repo gem_repo3 do
          build_gem "unrelated_gem", "1.0.0"
        end

        gemfile <<-G
          source "https://gem.repo2"

          gem "depends_on_rack"

          source "https://gem.repo3" do
            gem "unrelated_gem"
          end
        G
      end

      context "and the dependency is only in the top-level source" do
        before do
          update_repo gem_repo2 do
            build_gem "rack", "1.0.0"
          end
        end

        it "installs the dependency from the top-level source without warning" do
          bundle :install, artifice: "compact_index"
          expect(err).not_to include("Warning")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", "unrelated_gem 1.0.0")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", source: "remote2")
          expect(the_bundle).to include_gems("unrelated_gem 1.0.0", source: "remote3")
        end
      end

      context "and the dependency is only in a pinned source" do
        before do
          update_repo gem_repo3 do
            build_gem "rack", "1.0.0" do |s|
              s.write "lib/rack.rb", "RACK = 'FAIL'"
            end
          end
        end

        it "does not find the dependency" do
          bundle :install, artifice: "compact_index", raise_on_error: false
          expect(err).to end_with <<~E.strip
            Could not find compatible versions

            Because every version of depends_on_rack depends on rack >= 0
              and rack >= 0 could not be found in rubygems repository https://gem.repo2/, cached gems or installed locally,
              depends_on_rack cannot be used.
            So, because Gemfile depends on depends_on_rack >= 0,
              version solving has failed.
          E
        end
      end

      context "and the dependency is in both the top-level and a pinned source" do
        before do
          update_repo gem_repo2 do
            build_gem "rack", "1.0.0"
          end

          update_repo gem_repo3 do
            build_gem "rack", "1.0.0" do |s|
              s.write "lib/rack.rb", "RACK = 'FAIL'"
            end
          end
        end

        it "installs the dependency from the top-level source without warning" do
          bundle :install, artifice: "compact_index"
          expect(err).not_to include("Warning")
          expect(run("require 'rack'; puts RACK")).to eq("1.0.0")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", "unrelated_gem 1.0.0")
          expect(the_bundle).to include_gems("depends_on_rack 1.0.1", "rack 1.0.0", source: "remote2")
          expect(the_bundle).to include_gems("unrelated_gem 1.0.0", source: "remote3")
        end
      end
    end

    context "when a scoped gem has a deeply nested indirect dependency" do
      before do
        build_repo gem_repo3 do
          build_gem "depends_on_depends_on_rack", "1.0.1" do |s|
            s.add_dependency "depends_on_rack"
          end

          build_gem "depends_on_rack", "1.0.1" do |s|
            s.add_dependency "rack"
          end
        end

        gemfile <<-G
          source "https://gem.repo2"

          source "https://gem.repo3" do
            gem "depends_on_depends_on_rack"
          end
        G
      end

      context "and the dependency is only in the top-level source" do
        before do
          update_repo gem_repo2 do
            build_gem "rack", "1.0.0"
          end
        end

        it "installs the dependency from the top-level source" do
          bundle :install, artifice: "compact_index"
          expect(the_bundle).to include_gems("depends_on_depends_on_rack 1.0.1", "depends_on_rack 1.0.1", "rack 1.0.0")
          expect(the_bundle).to include_gems("rack 1.0.0", source: "remote2")
          expect(the_bundle).to include_gems("depends_on_depends_on_rack 1.0.1", "depends_on_rack 1.0.1", source: "remote3")
        end
      end

      context "and the dependency is only in a pinned source" do
        before do
          build_repo2

          update_repo gem_repo3 do
            build_gem "rack", "1.0.0"
          end
        end

        it "installs the dependency from the pinned source" do
          bundle :install, artifice: "compact_index"
          expect(the_bundle).to include_gems("depends_on_depends_on_rack 1.0.1", "depends_on_rack 1.0.1", "rack 1.0.0", source: "remote3")
        end
      end

      context "and the dependency is in both the top-level and a pinned source" do
        before do
          update_repo gem_repo2 do
            build_gem "rack", "1.0.0" do |s|
              s.write "lib/rack.rb", "RACK = 'FAIL'"
            end
          end

          update_repo gem_repo3 do
            build_gem "rack", "1.0.0"
          end
        end

        it "installs the dependency from the pinned source without warning" do
          bundle :install, artifice: "compact_index"
          expect(the_bundle).to include_gems("depends_on_depends_on_rack 1.0.1", "depends_on_rack 1.0.1", "rack 1.0.0", source: "remote3")
        end
      end
    end

    context "when the lockfile has aggregated rubygems sources and newer versions of dependencies are available" do
      before do
        build_repo gem_repo2 do
          build_gem "activesupport", "6.0.3.4" do |s|
            s.add_dependency "concurrent-ruby", "~> 1.0", ">= 1.0.2"
            s.add_dependency "i18n", ">= 0.7", "< 2"
            s.add_dependency "minitest", "~> 5.1"
            s.add_dependency "tzinfo", "~> 1.1"
            s.add_dependency "zeitwerk", "~> 2.2", ">= 2.2.2"
          end

          build_gem "activesupport", "6.1.2.1" do |s|
            s.add_dependency "concurrent-ruby", "~> 1.0", ">= 1.0.2"
            s.add_dependency "i18n", ">= 1.6", "< 2"
            s.add_dependency "minitest", ">= 5.1"
            s.add_dependency "tzinfo", "~> 2.0"
            s.add_dependency "zeitwerk", "~> 2.3"
          end

          build_gem "concurrent-ruby", "1.1.8"
          build_gem "concurrent-ruby", "1.1.9"
          build_gem "connection_pool", "2.2.3"

          build_gem "i18n", "1.8.9" do |s|
            s.add_dependency "concurrent-ruby", "~> 1.0"
          end

          build_gem "minitest", "5.14.3"
          build_gem "rack", "2.2.3"
          build_gem "redis", "4.2.5"

          build_gem "sidekiq", "6.1.3" do |s|
            s.add_dependency "connection_pool", ">= 2.2.2"
            s.add_dependency "rack", "~> 2.0"
            s.add_dependency "redis", ">= 4.2.0"
          end

          build_gem "thread_safe", "0.3.6"

          build_gem "tzinfo", "1.2.9" do |s|
            s.add_dependency "thread_safe", "~> 0.1"
          end

          build_gem "tzinfo", "2.0.4" do |s|
            s.add_dependency "concurrent-ruby", "~> 1.0"
          end

          build_gem "zeitwerk", "2.4.2"
        end

        build_repo gem_repo3 do
          build_gem "sidekiq-pro", "5.2.1" do |s|
            s.add_dependency "connection_pool", ">= 2.2.3"
            s.add_dependency "sidekiq", ">= 6.1.0"
          end
        end

        gemfile <<-G
          # frozen_string_literal: true

          source "https://gem.repo2"

          gem "activesupport"

          source "https://gem.repo3" do
            gem "sidekiq-pro"
          end
        G

        @locked_checksums = checksums_section_when_existing do |c|
          c.checksum gem_repo2, "activesupport", "6.0.3.4"
          c.checksum gem_repo2, "concurrent-ruby", "1.1.8"
          c.checksum gem_repo2, "connection_pool", "2.2.3"
          c.checksum gem_repo2, "i18n", "1.8.9"
          c.checksum gem_repo2, "minitest", "5.14.3"
          c.checksum gem_repo2, "rack", "2.2.3"
          c.checksum gem_repo2, "redis", "4.2.5"
          c.checksum gem_repo2, "sidekiq", "6.1.3"
          c.checksum gem_repo3, "sidekiq-pro", "5.2.1"
          c.checksum gem_repo2, "thread_safe", "0.3.6"
          c.checksum gem_repo2, "tzinfo", "1.2.9"
          c.checksum gem_repo2, "zeitwerk", "2.4.2"
        end

        lockfile <<~L
          GEM
            remote: https://gem.repo2/
            remote: https://gem.repo3/
            specs:
              activesupport (6.0.3.4)
                concurrent-ruby (~> 1.0, >= 1.0.2)
                i18n (>= 0.7, < 2)
                minitest (~> 5.1)
                tzinfo (~> 1.1)
                zeitwerk (~> 2.2, >= 2.2.2)
              concurrent-ruby (1.1.8)
              connection_pool (2.2.3)
              i18n (1.8.9)
                concurrent-ruby (~> 1.0)
              minitest (5.14.3)
              rack (2.2.3)
              redis (4.2.5)
              sidekiq (6.1.3)
                connection_pool (>= 2.2.2)
                rack (~> 2.0)
                redis (>= 4.2.0)
              sidekiq-pro (5.2.1)
                connection_pool (>= 2.2.3)
                sidekiq (>= 6.1.0)
              thread_safe (0.3.6)
              tzinfo (1.2.9)
                thread_safe (~> 0.1)
              zeitwerk (2.4.2)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            activesupport
            sidekiq-pro!
          #{@locked_checksums}
          BUNDLED WITH
             #{Bundler::VERSION}
        L
      end

      it "does not install newer versions but updates the lockfile format when running bundle install in non frozen mode, and doesn't warn" do
        bundle :install, artifice: "compact_index"
        expect(err).to be_empty

        expect(the_bundle).to include_gems("activesupport 6.0.3.4")
        expect(the_bundle).not_to include_gems("activesupport 6.1.2.1")
        expect(the_bundle).to include_gems("tzinfo 1.2.9")
        expect(the_bundle).not_to include_gems("tzinfo 2.0.4")
        expect(the_bundle).to include_gems("concurrent-ruby 1.1.8")
        expect(the_bundle).not_to include_gems("concurrent-ruby 1.1.9")

        expect(lockfile).to eq <<~L
          GEM
            remote: https://gem.repo2/
            specs:
              activesupport (6.0.3.4)
                concurrent-ruby (~> 1.0, >= 1.0.2)
                i18n (>= 0.7, < 2)
                minitest (~> 5.1)
                tzinfo (~> 1.1)
                zeitwerk (~> 2.2, >= 2.2.2)
              concurrent-ruby (1.1.8)
              connection_pool (2.2.3)
              i18n (1.8.9)
                concurrent-ruby (~> 1.0)
              minitest (5.14.3)
              rack (2.2.3)
              redis (4.2.5)
              sidekiq (6.1.3)
                connection_pool (>= 2.2.2)
                rack (~> 2.0)
                redis (>= 4.2.0)
              thread_safe (0.3.6)
              tzinfo (1.2.9)
                thread_safe (~> 0.1)
              zeitwerk (2.4.2)

          GEM
            remote: https://gem.repo3/
            specs:
              sidekiq-pro (5.2.1)
                connection_pool (>= 2.2.3)
                sidekiq (>= 6.1.0)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            activesupport
            sidekiq-pro!
          #{@locked_checksums}
          BUNDLED WITH
             #{Bundler::VERSION}
        L
      end

      it "does not install newer versions or generate lockfile changes when running bundle install in frozen mode, and warns", bundler: "< 3" do
        initial_lockfile = lockfile

        bundle "config set --local frozen true"
        bundle :install, artifice: "compact_index"

        expect(err).to include("Your lockfile contains a single rubygems source section with multiple remotes, which is insecure.")

        expect(the_bundle).to include_gems("activesupport 6.0.3.4")
        expect(the_bundle).not_to include_gems("activesupport 6.1.2.1")
        expect(the_bundle).to include_gems("tzinfo 1.2.9")
        expect(the_bundle).not_to include_gems("tzinfo 2.0.4")
        expect(the_bundle).to include_gems("concurrent-ruby 1.1.8")
        expect(the_bundle).not_to include_gems("concurrent-ruby 1.1.9")

        expect(lockfile).to eq(initial_lockfile)
      end

      it "fails when running bundle install in frozen mode", bundler: "3" do
        initial_lockfile = lockfile

        bundle "config set --local frozen true"
        bundle :install, artifice: "compact_index", raise_on_error: false

        expect(err).to include("Your lockfile contains a single rubygems source section with multiple remotes, which is insecure.")

        expect(lockfile).to eq(initial_lockfile)
      end

      it "splits sections and upgrades gems when running bundle update, and doesn't warn" do
        bundle "update --all", artifice: "compact_index"
        expect(err).to be_empty

        expect(the_bundle).not_to include_gems("activesupport 6.0.3.4")
        expect(the_bundle).to include_gems("activesupport 6.1.2.1")
        @locked_checksums.checksum gem_repo2, "activesupport", "6.1.2.1"

        expect(the_bundle).not_to include_gems("tzinfo 1.2.9")
        expect(the_bundle).to include_gems("tzinfo 2.0.4")
        @locked_checksums.checksum gem_repo2, "tzinfo", "2.0.4"
        @locked_checksums.delete "thread_safe"

        expect(the_bundle).not_to include_gems("concurrent-ruby 1.1.8")
        expect(the_bundle).to include_gems("concurrent-ruby 1.1.9")
        @locked_checksums.checksum gem_repo2, "concurrent-ruby", "1.1.9"

        expect(lockfile).to eq <<~L
          GEM
            remote: https://gem.repo2/
            specs:
              activesupport (6.1.2.1)
                concurrent-ruby (~> 1.0, >= 1.0.2)
                i18n (>= 1.6, < 2)
                minitest (>= 5.1)
                tzinfo (~> 2.0)
                zeitwerk (~> 2.3)
              concurrent-ruby (1.1.9)
              connection_pool (2.2.3)
              i18n (1.8.9)
                concurrent-ruby (~> 1.0)
              minitest (5.14.3)
              rack (2.2.3)
              redis (4.2.5)
              sidekiq (6.1.3)
                connection_pool (>= 2.2.2)
                rack (~> 2.0)
                redis (>= 4.2.0)
              tzinfo (2.0.4)
                concurrent-ruby (~> 1.0)
              zeitwerk (2.4.2)

          GEM
            remote: https://gem.repo3/
            specs:
              sidekiq-pro (5.2.1)
                connection_pool (>= 2.2.3)
                sidekiq (>= 6.1.0)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            activesupport
            sidekiq-pro!
          #{@locked_checksums}
          BUNDLED WITH
             #{Bundler::VERSION}
        L
      end

      it "upgrades the lockfile format and upgrades the requested gem when running bundle update with an argument" do
        bundle "update concurrent-ruby", artifice: "compact_index"
        expect(err).to be_empty

        expect(the_bundle).to include_gems("activesupport 6.0.3.4")
        expect(the_bundle).not_to include_gems("activesupport 6.1.2.1")
        expect(the_bundle).to include_gems("tzinfo 1.2.9")
        expect(the_bundle).not_to include_gems("tzinfo 2.0.4")
        expect(the_bundle).to include_gems("concurrent-ruby 1.1.9")
        expect(the_bundle).not_to include_gems("concurrent-ruby 1.1.8")

        @locked_checksums.checksum gem_repo2, "concurrent-ruby", "1.1.9"

        expect(lockfile).to eq <<~L
          GEM
            remote: https://gem.repo2/
            specs:
              activesupport (6.0.3.4)
                concurrent-ruby (~> 1.0, >= 1.0.2)
                i18n (>= 0.7, < 2)
                minitest (~> 5.1)
                tzinfo (~> 1.1)
                zeitwerk (~> 2.2, >= 2.2.2)
              concurrent-ruby (1.1.9)
              connection_pool (2.2.3)
              i18n (1.8.9)
                concurrent-ruby (~> 1.0)
              minitest (5.14.3)
              rack (2.2.3)
              redis (4.2.5)
              sidekiq (6.1.3)
                connection_pool (>= 2.2.2)
                rack (~> 2.0)
                redis (>= 4.2.0)
              thread_safe (0.3.6)
              tzinfo (1.2.9)
                thread_safe (~> 0.1)
              zeitwerk (2.4.2)

          GEM
            remote: https://gem.repo3/
            specs:
              sidekiq-pro (5.2.1)
                connection_pool (>= 2.2.3)
                sidekiq (>= 6.1.0)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            activesupport
            sidekiq-pro!
          #{@locked_checksums}
          BUNDLED WITH
             #{Bundler::VERSION}
        L
      end
    end

    context "when a top-level gem has an indirect dependency present in the default source, but with a different version from the one resolved" do
      before do
        build_lib "activesupport", "7.0.0.alpha", path: lib_path("rails/activesupport")
        build_lib "rails", "7.0.0.alpha", path: lib_path("rails") do |s|
          s.add_dependency "activesupport", "= 7.0.0.alpha"
        end

        build_repo gem_repo2 do
          build_gem "activesupport", "6.1.2"

          build_gem "webpacker", "5.2.1" do |s|
            s.add_dependency "activesupport", ">= 5.2"
          end
        end

        gemfile <<-G
          source "https://gem.repo2"

          gemspec :path => "#{lib_path("rails")}"

          gem "webpacker", "~> 5.0"
        G
      end

      it "installs all gems without warning" do
        bundle :install, artifice: "compact_index"
        expect(err).not_to include("Warning")
        expect(the_bundle).to include_gems("activesupport 7.0.0.alpha", "rails 7.0.0.alpha")
        expect(the_bundle).to include_gems("activesupport 7.0.0.alpha", source: "path@#{lib_path("rails/activesupport")}")
        expect(the_bundle).to include_gems("rails 7.0.0.alpha", source: "path@#{lib_path("rails")}")
      end
    end

    context "when a pinned gem has an indirect dependency with more than one level of indirection in the default source " do
      before do
        build_repo gem_repo3 do
          build_gem "handsoap", "0.2.5.5" do |s|
            s.add_dependency "nokogiri", ">= 1.2.3"
          end
        end

        update_repo gem_repo2 do
          build_gem "nokogiri", "1.11.1" do |s|
            s.add_dependency "racca", "~> 1.4"
          end

          build_gem "racca", "1.5.2"
        end

        gemfile <<-G
          source "https://gem.repo2"

          source "https://gem.repo3" do
            gem "handsoap"
          end

          gem "nokogiri"
        G
      end

      it "installs from the default source without any warnings or errors and generates a proper lockfile" do
        checksums = checksums_section_when_existing do |c|
          c.checksum gem_repo3, "handsoap", "0.2.5.5"
          c.checksum gem_repo2, "nokogiri", "1.11.1"
          c.checksum gem_repo2, "racca", "1.5.2"
        end

        expected_lockfile = <<~L
          GEM
            remote: https://gem.repo2/
            specs:
              nokogiri (1.11.1)
                racca (~> 1.4)
              racca (1.5.2)

          GEM
            remote: https://gem.repo3/
            specs:
              handsoap (0.2.5.5)
                nokogiri (>= 1.2.3)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            handsoap!
            nokogiri
          #{checksums}
          BUNDLED WITH
             #{Bundler::VERSION}
        L

        bundle "install --verbose", artifice: "compact_index"
        expect(err).not_to include("Warning")
        expect(the_bundle).to include_gems("handsoap 0.2.5.5", "nokogiri 1.11.1", "racca 1.5.2")
        expect(the_bundle).to include_gems("handsoap 0.2.5.5", source: "remote3")
        expect(the_bundle).to include_gems("nokogiri 1.11.1", "racca 1.5.2", source: "remote2")
        expect(lockfile).to eq(expected_lockfile)

        # Even if the gems are already installed
        FileUtils.rm bundled_app_lock
        bundle "install --verbose", artifice: "compact_index"
        expect(err).not_to include("Warning")
        expect(the_bundle).to include_gems("handsoap 0.2.5.5", "nokogiri 1.11.1", "racca 1.5.2")
        expect(the_bundle).to include_gems("handsoap 0.2.5.5", source: "remote3")
        expect(the_bundle).to include_gems("nokogiri 1.11.1", "racca 1.5.2", source: "remote2")
        expect(lockfile).to eq(expected_lockfile)
      end
    end

    context "with a gem that is only found in the wrong source" do
      before do
        build_repo gem_repo3 do
          build_gem "not_in_repo1", "1.0.0"
        end

        install_gemfile <<-G, artifice: "compact_index", raise_on_error: false
          source "https://gem.repo3"
          gem "not_in_repo1", :source => "https://gem.repo1"
        G
      end

      it "does not install the gem" do
        expect(err).to include("Could not find gem 'not_in_repo1'")
      end
    end

    context "with an existing lockfile" do
      before do
        system_gems "rack-0.9.1", "rack-1.0.0", path: default_bundle_path

        lockfile <<-L
          GEM
            remote: https://gem.repo1
            specs:

          GEM
            remote: https://gem.repo3
            specs:
              rack (0.9.1)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            rack!
        L

        gemfile <<-G
          source "https://gem.repo1"
          source "https://gem.repo3" do
            gem 'rack'
          end
        G
      end

      # Reproduction of https://github.com/rubygems/bundler/issues/3298
      it "does not unlock the installed gem on exec" do
        expect(the_bundle).to include_gems("rack 0.9.1")
      end
    end

    context "with a lockfile with aggregated rubygems sources" do
      let(:aggregate_gem_section_lockfile) do
        <<~L
          GEM
            remote: https://gem.repo1/
            remote: https://gem.repo3/
            specs:
              rack (0.9.1)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            rack!
          #{checksums_section}
          BUNDLED WITH
             #{Bundler::VERSION}
        L
      end

      let(:split_gem_section_lockfile) do
        <<~L
          GEM
            remote: https://gem.repo1/
            specs:

          GEM
            remote: https://gem.repo3/
            specs:
              rack (0.9.1)

          PLATFORMS
            #{lockfile_platforms}

          DEPENDENCIES
            rack!

          BUNDLED WITH
             #{Bundler::VERSION}
        L
      end

      before do
        build_repo gem_repo3 do
          build_gem "rack", "0.9.1"
        end

        gemfile <<-G
          source "https://gem.repo1"
          source "https://gem.repo3" do
            gem 'rack'
          end
        G

        lockfile aggregate_gem_section_lockfile
      end

      it "installs the existing lockfile but prints a warning when checksum validation is disabled", bundler: "< 3" do
        bundle "config set --local deployment true"
        bundle "config set --local disable_checksum_validation true"

        bundle "install", artifice: "compact_index"

        expect(lockfile).to eq(aggregate_gem_section_lockfile)
        expect(err).to include("Your lockfile contains a single rubygems source section with multiple remotes, which is insecure.")
        expect(the_bundle).to include_gems("rack 0.9.1", source: "remote3")
      end

      it "prints a checksum warning when the checksums from both sources do not match", bundler: "< 3" do
        bundle "config set --local deployment true"

        bundle "install", artifice: "compact_index", raise_on_error: false

        api_checksum1 = checksum_digest(gem_repo1, "rack", "0.9.1")
        api_checksum3 = checksum_digest(gem_repo3, "rack", "0.9.1")

        expect(exitstatus).to eq(37)
        expect(err).to eq(<<~E.strip)
          [DEPRECATED] Your lockfile contains a single rubygems source section with multiple remotes, which is insecure. Make sure you run `bundle install` in non frozen mode and commit the result to make your lockfile secure.
          Bundler found mismatched checksums. This is a potential security risk.
            rack (0.9.1) sha256=#{api_checksum3}
              from the API at https://gem.repo3/
            rack (0.9.1) sha256=#{api_checksum1}
              from the API at https://gem.repo1/

          Mismatched checksums each have an authoritative source:
            1. the API at https://gem.repo3/
            2. the API at https://gem.repo1/
          You may need to alter your Gemfile sources to resolve this issue.

          To ignore checksum security warnings, disable checksum validation with
            `bundle config set --local disable_checksum_validation true`
        E
      end

      it "refuses to install the existing lockfile and prints an error", bundler: "3" do
        bundle "config set --local deployment true"

        bundle "install", artifice: "compact_index", raise_on_error: false

        expect(lockfile).to eq(aggregate_gem_section_lockfile)
        expect(err).to include("Your lockfile contains a single rubygems source section with multiple remotes, which is insecure.")
        expect(out).to be_empty
      end
    end

    context "with a path gem in the same Gemfile" do
      before do
        build_lib "foo"

        gemfile <<-G
          source "#{file_uri_for(gem_repo1)}"
          gem "rack", :source => "https://gem.repo1"
          gem "foo", :path => "#{lib_path("foo-1.0")}"
        G
      end

      it "does not unlock the non-path gem after install" do
        bundle :install, artifice: "compact_index"

        bundle %(exec ruby -e 'puts "OK"')

        expect(out).to include("OK")
      end
    end
  end

  context "when an older version of the same gem also ships with Ruby" do
    before do
      system_gems "rack-0.9.1"

      install_gemfile <<-G, artifice: "compact_index"
        source "https://gem.repo1"
        gem "rack" # should come from repo1!
      G
    end

    it "installs the gems without any warning" do
      expect(err).not_to include("Warning")
      expect(the_bundle).to include_gems("rack 1.0.0")
    end
  end

  context "when a single source contains multiple locked gems" do
    before do
      # With these gems,
      build_repo4 do
        build_gem "foo", "0.1"
        build_gem "bar", "0.1"
      end

      # Installing this gemfile...
      gemfile <<-G
        source 'https://gem.repo1'
        gem 'rack'
        gem 'foo', '~> 0.1', :source => 'https://gem.repo4'
        gem 'bar', '~> 0.1', :source => 'https://gem.repo4'
      G

      bundle "config set --local path ../gems/system"
      bundle :install, artifice: "compact_index"

      # And then we add some new versions...
      update_repo4 do
        build_gem "foo", "0.2"
        build_gem "bar", "0.3"
      end
    end

    it "allows them to be unlocked separately" do
      # And install this gemfile, updating only foo.
      install_gemfile <<-G, artifice: "compact_index"
        source 'https://gem.repo1'
        gem 'rack'
        gem 'foo', '~> 0.2', :source => 'https://gem.repo4'
        gem 'bar', '~> 0.1', :source => 'https://gem.repo4'
      G

      # It should update foo to 0.2, but not the (locked) bar 0.1
      expect(the_bundle).to include_gems("foo 0.2", "bar 0.1")
    end
  end

  context "re-resolving" do
    context "when there is a mix of sources in the gemfile" do
      before do
        build_repo gem_repo3 do
          build_gem "rack"
        end

        build_lib "path1"
        build_lib "path2"
        build_git "git1"
        build_git "git2"

        install_gemfile <<-G, artifice: "compact_index"
          source "https://gem.repo1"
          gem "rails"

          source "https://gem.repo3" do
            gem "rack"
          end

          gem "path1", :path => "#{lib_path("path1-1.0")}"
          gem "path2", :path => "#{lib_path("path2-1.0")}"
          gem "git1",  :git  => "#{lib_path("git1-1.0")}"
          gem "git2",  :git  => "#{lib_path("git2-1.0")}"
        G
      end

      it "does not re-resolve" do
        bundle :install, artifice: "compact_index", verbose: true
        expect(out).to include("using resolution from the lockfile")
        expect(out).not_to include("re-resolving dependencies")
      end
    end
  end

  context "when a gem is installed to system gems" do
    before do
      install_gemfile <<-G, artifice: "compact_index"
        source "https://gem.repo1"
        gem "rack"
      G
    end

    context "and the gemfile changes" do
      it "is still able to find that gem from remote sources" do
        build_repo4 do
          build_gem "rack", "2.0.1.1.forked"
          build_gem "thor", "0.19.1.1.forked"
        end

        # When this gemfile is installed...
        install_gemfile <<-G, artifice: "compact_index"
          source "https://gem.repo1"

          source "https://gem.repo4" do
            gem "rack", "2.0.1.1.forked"
            gem "thor"
          end
          gem "rack-obama"
        G

        # Then we change the Gemfile by adding a version to thor
        gemfile <<-G
          source "https://gem.repo1"

          source "https://gem.repo4" do
            gem "rack", "2.0.1.1.forked"
            gem "thor", "0.19.1.1.forked"
          end
          gem "rack-obama"
        G

        # But we should still be able to find rack 2.0.1.1.forked and install it
        bundle :install, artifice: "compact_index"
      end
    end
  end

  describe "source changed to one containing a higher version of a dependency" do
    before do
      install_gemfile <<-G, artifice: "compact_index"
        source "https://gem.repo1"

        gem "rack"
      G

      build_repo2 do
        build_gem "rack", "1.2" do |s|
          s.executables = "rackup"
        end

        build_gem "bar"
      end

      build_lib("gemspec_test", path: tmp.join("gemspec_test")) do |s|
        s.add_dependency "bar", "=1.0.0"
      end

      install_gemfile <<-G, artifice: "compact_index"
        source "https://gem.repo2"
        gem "rack"
        gemspec :path => "#{tmp.join("gemspec_test")}"
      G
    end

    it "conservatively installs the existing locked version" do
      expect(the_bundle).to include_gems("rack 1.0.0")
    end
  end

  context "when Gemfile overrides a gemspec development dependency to change the default source" do
    before do
      build_repo4 do
        build_gem "bar"
      end

      build_lib("gemspec_test", path: tmp.join("gemspec_test")) do |s|
        s.add_development_dependency "bar"
      end

      install_gemfile <<-G, artifice: "compact_index"
        source "https://gem.repo1"

        source "https://gem.repo4" do
          gem "bar"
        end

        gemspec :path => "#{tmp.join("gemspec_test")}"
      G
    end

    it "does not print warnings" do
      expect(err).to be_empty
    end
  end

  it "doesn't update version when a gem uses a source block but a higher version from another source is already installed locally" do
    build_repo2 do
      build_gem "example", "0.1.0"
    end

    build_repo4 do
      build_gem "example", "1.0.2"
    end

    install_gemfile <<-G, artifice: "compact_index"
      source "https://gem.repo4"

      gem "example", :source => "https://gem.repo2"
    G

    bundle "info example"
    expect(out).to include("example (0.1.0)")

    system_gems "example-1.0.2", path: default_bundle_path, gem_repo: gem_repo4

    bundle "update example --verbose", artifice: "compact_index"
    expect(out).not_to include("Using example 1.0.2")
    expect(out).to include("Using example 0.1.0")
  end

  it "fails immediately with a helpful error when a rubygems source does not exist and bundler/setup is required" do
    gemfile <<-G
      source "https://gem.repo1"

      source "https://gem.repo4" do
        gem "example"
      end
    G

    ruby <<~R, raise_on_error: false
      require 'bundler/setup'
    R

    expect(last_command).to be_failure
    expect(err).to include("Could not find gem 'example' in locally installed gems.")
  end

  it "fails immediately with a helpful error when a non retriable network error happens while resolving sources" do
    gemfile <<-G
      source "https://gem.repo1"

      source "https://gem.repo4" do
        gem "example"
      end
    G

    bundle "install", artifice: nil, raise_on_error: false

    expect(last_command).to be_failure
    expect(err).to include("Could not reach host gem.repo4. Check your network connection and try again.")
  end

  context "when an indirect dependency is available from multiple ambiguous sources", bundler: "< 3" do
    it "succeeds but warns, suggesting a source block" do
      build_repo4 do
        build_gem "depends_on_rack" do |s|
          s.add_dependency "rack"
        end
        build_gem "rack"
      end

      install_gemfile <<-G, artifice: "compact_index", raise_on_error: false
        source "#{file_uri_for(gem_repo1)}"

        source "https://gem.repo4" do
          gem "depends_on_rack"
        end

        source "https://gem.repo1" do
          gem "thin"
        end
      G
      expect(err).to eq <<~EOS.strip
        Warning: The gem 'rack' was found in multiple relevant sources.
          * rubygems repository https://gem.repo1/
          * rubygems repository https://gem.repo4/
        You should add this gem to the source block for the source you wish it to be installed from.
      EOS
      expect(last_command).to be_success
      expect(the_bundle).to be_locked
    end
  end

  context "when an indirect dependency is available from multiple ambiguous sources", bundler: "3" do
    it "raises, suggesting a source block" do
      build_repo4 do
        build_gem "depends_on_rack" do |s|
          s.add_dependency "rack"
        end
        build_gem "rack"
      end

      install_gemfile <<-G, artifice: "compact_index", raise_on_error: false
        source "#{file_uri_for(gem_repo1)}"
        source "https://gem.repo4" do
          gem "depends_on_rack"
        end
        source "https://gem.repo1" do
          gem "thin"
        end
      G
      expect(last_command).to be_failure
      expect(err).to eq <<~EOS.strip
        The gem 'rack' was found in multiple relevant sources.
          * rubygems repository https://gem.repo1/
          * rubygems repository https://gem.repo4/
        You must add this gem to the source block for the source you wish it to be installed from.
      EOS
      expect(the_bundle).not_to be_locked
    end
  end

  context "when upgrading a lockfile suffering from dependency confusion" do
    before do
      build_repo4 do
        build_gem "mime-types", "3.0.0"
      end

      build_repo2 do
        build_gem "capybara", "2.5.0" do |s|
          s.add_dependency "mime-types", ">= 1.16"
        end

        build_gem "mime-types", "3.3.1"
      end

      gemfile <<~G
        source "https://gem.repo2"

        gem "capybara", "~> 2.5.0"

        source "https://gem.repo4" do
          gem "mime-types", "~> 3.0"
        end
      G

      lockfile <<-L
        GEM
          remote: https://gem.repo2/
          remote: https://gem.repo4/
          specs:
            capybara (2.5.0)
              mime-types (>= 1.16)
            mime-types (3.3.1)

        PLATFORMS
          #{lockfile_platforms}

        DEPENDENCIES
          capybara (~> 2.5.0)
          mime-types (~> 3.0)!

        CHECKSUMS
      L
    end

    it "upgrades the lockfile correctly" do
      bundle "lock --update", artifice: "compact_index"

      checksums = checksums_section_when_existing do |c|
        c.checksum gem_repo2, "capybara", "2.5.0"
        c.checksum gem_repo4, "mime-types", "3.0.0"
      end

      expect(lockfile).to eq <<~L
        GEM
          remote: https://gem.repo2/
          specs:
            capybara (2.5.0)
              mime-types (>= 1.16)

        GEM
          remote: https://gem.repo4/
          specs:
            mime-types (3.0.0)

        PLATFORMS
          #{lockfile_platforms}

        DEPENDENCIES
          capybara (~> 2.5.0)
          mime-types (~> 3.0)!
        #{checksums}
        BUNDLED WITH
           #{Bundler::VERSION}
      L
    end
  end

  context "when default source includes old gems with nil required_ruby_version" do
    before do
      build_repo2 do
        build_gem "ruport", "1.7.0.3" do |s|
          s.add_dependency "pdf-writer", "1.1.8"
        end
      end

      build_repo gem_repo4 do
        build_gem "pdf-writer", "1.1.8"
      end

      path = "#{gem_repo4}/#{Gem::MARSHAL_SPEC_DIR}/pdf-writer-1.1.8.gemspec.rz"
      spec = Marshal.load(Bundler.rubygems.inflate(File.binread(path)))
      spec.instance_variable_set(:@required_ruby_version, nil)
      File.open(path, "wb") do |f|
        f.write Gem.deflate(Marshal.dump(spec))
      end

      gemfile <<~G
        source "https://localgemserver.test"

        gem "ruport", "= 1.7.0.3", :source => "https://localgemserver.test/extra"
      G
    end

    it "handles that fine" do
      bundle "install", artifice: "compact_index_extra", env: { "BUNDLER_SPEC_GEM_REPO" => gem_repo4.to_s }

      checksums = checksums_section_when_existing do |c|
        c.checksum gem_repo4, "pdf-writer", "1.1.8"
        c.checksum gem_repo2, "ruport", "1.7.0.3"
      end

      expect(lockfile).to eq <<~L
        GEM
          remote: https://localgemserver.test/
          specs:
            pdf-writer (1.1.8)

        GEM
          remote: https://localgemserver.test/extra/
          specs:
            ruport (1.7.0.3)
              pdf-writer (= 1.1.8)

        PLATFORMS
          #{lockfile_platforms}

        DEPENDENCIES
          ruport (= 1.7.0.3)!
        #{checksums}
        BUNDLED WITH
           #{Bundler::VERSION}
      L
    end
  end

  context "when default source includes old gems with nil required_rubygems_version" do
    before do
      build_repo2 do
        build_gem "ruport", "1.7.0.3" do |s|
          s.add_dependency "pdf-writer", "1.1.8"
        end
      end

      build_repo gem_repo4 do
        build_gem "pdf-writer", "1.1.8"
      end

      path = "#{gem_repo4}/#{Gem::MARSHAL_SPEC_DIR}/pdf-writer-1.1.8.gemspec.rz"
      spec = Marshal.load(Bundler.rubygems.inflate(File.binread(path)))
      spec.instance_variable_set(:@required_rubygems_version, nil)
      File.open(path, "wb") do |f|
        f.write Gem.deflate(Marshal.dump(spec))
      end

      gemfile <<~G
        source "https://localgemserver.test"

        gem "ruport", "= 1.7.0.3", :source => "https://localgemserver.test/extra"
      G
    end

    it "handles that fine" do
      bundle "install", artifice: "compact_index_extra", env: { "BUNDLER_SPEC_GEM_REPO" => gem_repo4.to_s }

      checksums = checksums_section_when_existing do |c|
        c.checksum gem_repo4, "pdf-writer", "1.1.8"
        c.checksum gem_repo2, "ruport", "1.7.0.3"
      end

      expect(lockfile).to eq <<~L
        GEM
          remote: https://localgemserver.test/
          specs:
            pdf-writer (1.1.8)

        GEM
          remote: https://localgemserver.test/extra/
          specs:
            ruport (1.7.0.3)
              pdf-writer (= 1.1.8)

        PLATFORMS
          #{lockfile_platforms}

        DEPENDENCIES
          ruport (= 1.7.0.3)!
        #{checksums}
        BUNDLED WITH
           #{Bundler::VERSION}
      L
    end
  end

  context "when default source uses the old API and includes old gems with nil required_rubygems_version" do
    before do
      build_repo4 do
        build_gem "pdf-writer", "1.1.8"
      end

      path = "#{gem_repo4}/#{Gem::MARSHAL_SPEC_DIR}/pdf-writer-1.1.8.gemspec.rz"
      spec = Marshal.load(Bundler.rubygems.inflate(File.binread(path)))
      spec.instance_variable_set(:@required_rubygems_version, nil)
      File.open(path, "wb") do |f|
        f.write Gem.deflate(Marshal.dump(spec))
      end

      gemfile <<~G
        source "https://localgemserver.test"

        gem "pdf-writer", "= 1.1.8"
      G
    end

    it "handles that fine" do
      bundle "install --verbose", artifice: "endpoint", env: { "BUNDLER_SPEC_GEM_REPO" => gem_repo4.to_s }

      checksums = checksums_section_when_existing do |c|
        c.checksum gem_repo4, "pdf-writer", "1.1.8"
      end

      expect(lockfile).to eq <<~L
        GEM
          remote: https://localgemserver.test/
          specs:
            pdf-writer (1.1.8)

        PLATFORMS
          #{lockfile_platforms}

        DEPENDENCIES
          pdf-writer (= 1.1.8)
        #{checksums}
        BUNDLED WITH
           #{Bundler::VERSION}
      L
    end
  end

  context "when mistakenly adding a top level gem already depended on and cached under the wrong source" do
    before do
      build_repo4 do
        build_gem "some_private_gem", "0.1.0" do |s|
          s.add_dependency "example", "~> 1.0"
        end
      end

      build_repo2 do
        build_gem "example", "1.0.0"
      end

      install_gemfile <<~G, artifice: "compact_index"
        source "https://gem.repo2"

        source "https://gem.repo4" do
          gem "some_private_gem"
        end
      G

      gemfile <<~G
        source "https://gem.repo2"

        source "https://gem.repo4" do
          gem "some_private_gem"
          gem "example" # MISTAKE, example is not available at gem.repo4
        end
      G
    end

    it "shows a proper error message and does not generate a corrupted lockfile" do
      expect do
        bundle :install, artifice: "compact_index", raise_on_error: false, env: { "BUNDLER_SPEC_GEM_REPO" => gem_repo4.to_s }
      end.not_to change { lockfile }

      expect(err).to include("Could not find gem 'example' in rubygems repository https://gem.repo4/")
    end
  end
end