Merge bundler to standard libraries.

  rubygems 2.7.x depends bundler-1.15.x. This is preparation for
  rubygems and bundler migration.

  * lib/bundler.rb, lib/bundler/*: files of bundler-1.15.4
  * spec/bundler/*: rspec examples of bundler-1.15.4. I applied patches.
    * https://github.com/bundler/bundler/pull/6007
    * Exclude not working examples on ruby repository.
    * Fake ruby interpriter instead of installed ruby.
  * Makefile.in: Added test task named `test-bundler`. This task is only
    working macOS/linux yet. I'm going to support Windows environment later.
  * tool/sync_default_gems.rb: Added sync task for bundler.

  [Feature #12733][ruby-core:77172]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59779 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 143 insertions, 0 deletions

diff --git a/spec/bundler/other/bundle_ruby_spec.rb b/spec/bundler/other/bundle_ruby_spec.rb
new file mode 100644
index 0000000000..09fa2c223b
--- /dev/null
+++ b/spec/bundler/other/bundle_ruby_spec.rb
@@ -0,0 +1,143 @@
+# frozen_string_literal: true
+require "spec_helper"
+
+RSpec.describe "bundle_ruby" do
+  context "without patchlevel" do
+    it "returns the ruby version" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.9.3", :engine => 'ruby', :engine_version => '1.9.3'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("ruby 1.9.3")
+    end
+
+    it "engine defaults to MRI" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.9.3"
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("ruby 1.9.3")
+    end
+
+    it "handles jruby" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.8.7", :engine => 'jruby', :engine_version => '1.6.5'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("ruby 1.8.7 (jruby 1.6.5)")
+    end
+
+    it "handles rbx" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.8.7", :engine => 'rbx', :engine_version => '1.2.4'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("ruby 1.8.7 (rbx 1.2.4)")
+    end
+
+    it "raises an error if engine is used but engine version is not" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.8.7", :engine => 'rbx'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+      expect(exitstatus).not_to eq(0) if exitstatus
+
+      bundle_ruby
+      expect(out).to include("Please define :engine_version")
+    end
+
+    it "raises an error if engine_version is used but engine is not" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.8.7", :engine_version => '1.2.4'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+      expect(exitstatus).not_to eq(0) if exitstatus
+
+      bundle_ruby
+      expect(out).to include("Please define :engine")
+    end
+
+    it "raises an error if engine version doesn't match ruby version for MRI" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.8.7", :engine => 'ruby', :engine_version => '1.2.4'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+      expect(exitstatus).not_to eq(0) if exitstatus
+
+      bundle_ruby
+      expect(out).to include("ruby_version must match the :engine_version for MRI")
+    end
+
+    it "should print if no ruby version is specified" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("No ruby version specified")
+    end
+  end
+
+  context "when using patchlevel" do
+    it "returns the ruby version" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.9.3", :patchlevel => '429', :engine => 'ruby', :engine_version => '1.9.3'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("ruby 1.9.3p429")
+    end
+
+    it "handles an engine" do
+      gemfile <<-G
+        source "file://#{gem_repo1}"
+        ruby "1.9.3", :patchlevel => '392', :engine => 'jruby', :engine_version => '1.7.4'
+
+        gem "foo"
+      G
+
+      bundle_ruby
+
+      expect(out).to include("ruby 1.9.3p392 (jruby 1.7.4)")
+    end
+  end
+end