1 files changed, 195 insertions, 0 deletions
diff --git a/spec/bundler/install/gems/resolving_spec.rb b/spec/bundler/install/gems/resolving_spec.rb
new file mode 100644
index 0000000000..7a341fd14f
--- /dev/null
+++ b/spec/bundler/install/gems/resolving_spec.rb
@@ -0,0 +1,195 @@
+# frozen_string_literal: true
+require "spec_helper"
+
+RSpec.describe "bundle install with install-time dependencies" do
+  it "installs gems with implicit rake dependencies", :ruby_repo do
+    install_gemfile <<-G
+      source "file://#{gem_repo1}"
+      gem "with_implicit_rake_dep"
+      gem "another_implicit_rake_dep"
+      gem "rake"
+    G
+
+    run <<-R
+      require 'implicit_rake_dep'
+      require 'another_implicit_rake_dep'
+      puts IMPLICIT_RAKE_DEP
+      puts ANOTHER_IMPLICIT_RAKE_DEP
+    R
+    expect(out).to eq("YES\nYES")
+  end
+
+  it "installs gems with a dependency with no type" do
+    build_repo2
+
+    path = "#{gem_repo2}/#{Gem::MARSHAL_SPEC_DIR}/actionpack-2.3.2.gemspec.rz"
+    spec = Marshal.load(Gem.inflate(File.read(path)))
+    spec.dependencies.each do |d|
+      d.instance_variable_set(:@type, :fail)
+    end
+    File.open(path, "w") do |f|
+      f.write Gem.deflate(Marshal.dump(spec))
+    end
+
+    install_gemfile <<-G
+      source "file://#{gem_repo2}"
+      gem "actionpack", "2.3.2"
+    G
+
+    expect(the_bundle).to include_gems "actionpack 2.3.2", "activesupport 2.3.2"
+  end
+
+  describe "with crazy rubygem plugin stuff" do
+    it "installs plugins" do
+      install_gemfile <<-G
+        source "file://#{gem_repo1}"
+        gem "net_b"
+      G
+
+      expect(the_bundle).to include_gems "net_b 1.0"
+    end
+
+    it "installs plugins depended on by other plugins", :ruby_repo do
+      install_gemfile <<-G
+        source "file://#{gem_repo1}"
+        gem "net_a"
+      G
+
+      expect(the_bundle).to include_gems "net_a 1.0", "net_b 1.0"
+    end
+
+    it "installs multiple levels of dependencies", :ruby_repo do
+      install_gemfile <<-G
+        source "file://#{gem_repo1}"
+        gem "net_c"
+        gem "net_e"
+      G
+
+      expect(the_bundle).to include_gems "net_a 1.0", "net_b 1.0", "net_c 1.0", "net_d 1.0", "net_e 1.0"
+    end
+
+    context "with ENV['DEBUG_RESOLVER'] set" do
+      it "produces debug output" do
+        gemfile <<-G
+          source "file://#{gem_repo1}"
+          gem "net_c"
+          gem "net_e"
+        G
+
+        bundle :install, :env => { "DEBUG_RESOLVER" => "1" }
+
+        expect(err).to include("Creating possibility state for net_c")
+      end
+    end
+
+    context "with ENV['DEBUG_RESOLVER_TREE'] set" do
+      it "produces debug output" do
+        gemfile <<-G
+          source "file://#{gem_repo1}"
+          gem "net_c"
+          gem "net_e"
+        G
+
+        bundle :install, :env => { "DEBUG_RESOLVER_TREE" => "1" }
+
+        expect(err).to include(" net_b")
+        expect(err).to include(" net_build_extensions (1.0)")
+      end
+    end
+  end
+
+  describe "when a required ruby version" do
+    context "allows only an older version" do
+      it "installs the older version" do
+        build_repo2 do
+          build_gem "rack", "9001.0.0" do |s|
+            s.required_ruby_version = "> 9000"
+          end
+        end
+
+        install_gemfile <<-G, :artifice => "compact_index", :env => { "BUNDLER_SPEC_GEM_REPO" => gem_repo2 }
+          ruby "#{RUBY_VERSION}"
+          source "http://localgemserver.test/"
+          gem 'rack'
+        G
+
+        expect(out).to_not include("rack-9001.0.0 requires ruby version > 9000")
+        expect(the_bundle).to include_gems("rack 1.2")
+      end
+    end
+
+    context "allows no gems" do
+      before do
+        build_repo2 do
+          build_gem "require_ruby" do |s|
+            s.required_ruby_version = "> 9000"
+          end
+        end
+      end
+
+      let(:ruby_requirement) { %("#{RUBY_VERSION}") }
+      let(:error_message_requirement) { "~> #{RUBY_VERSION}.0" }
+
+      shared_examples_for "ruby version conflicts" do
+        it "raises an error during resolution" do
+          install_gemfile <<-G, :artifice => "compact_index", :env => { "BUNDLER_SPEC_GEM_REPO" => gem_repo2 }
+            source "http://localgemserver.test/"
+            ruby #{ruby_requirement}
+            gem 'require_ruby'
+          G
+
+          expect(out).to_not include("Gem::InstallError: require_ruby requires Ruby version > 9000")
+
+          nice_error = strip_whitespace(<<-E).strip
+            Fetching gem metadata from http://localgemserver.test/.
+            Fetching version metadata from http://localgemserver.test/
+            Resolving dependencies...
+            Bundler could not find compatible versions for gem "ruby\0":
+              In Gemfile:
+                ruby\0 (#{error_message_requirement})
+
+                require_ruby was resolved to 1.0, which depends on
+                  ruby\0 (> 9000)
+
+            Could not find gem 'ruby\0 (> 9000)', which is required by gem 'require_ruby', in any of the sources.
+          E
+          expect(out).to eq(nice_error)
+        end
+      end
+
+      it_behaves_like "ruby version conflicts"
+
+      describe "with a < requirement" do
+        let(:ruby_requirement) { %("< 5000") }
+        let(:error_message_requirement) { "< 5000" }
+
+        it_behaves_like "ruby version conflicts"
+      end
+
+      describe "with a compound requirement" do
+        let(:ruby_requirement) { %("< 5000", "> 0.1") }
+        let(:error_message_requirement) { "< 5000, > 0.1" }
+
+        it_behaves_like "ruby version conflicts"
+      end
+    end
+  end
+
+  describe "when a required rubygems version disallows a gem" do
+    it "does not try to install those gems" do
+      build_repo2 do
+        build_gem "require_rubygems" do |s|
+          s.required_rubygems_version = "> 9000"
+        end
+      end
+
+      install_gemfile <<-G
+        source "file://#{gem_repo2}"
+        gem 'require_rubygems'
+      G
+
+      expect(out).to_not include("Gem::InstallError: require_rubygems requires RubyGems version > 9000")
+      expect(out).to include("require_rubygems-1.0 requires rubygems version > 9000, which is incompatible with the current version, #{Gem::VERSION}")
+    end
+  end
+end