Added bundler as default gems. Revisit [Feature #12733]

  * bin/*, lib/bundler/*, lib/bundler.rb, spec/bundler, man/*:
    Merge from latest stable branch of bundler/bundler repository and
    added workaround patches. I will backport them into upstream.
  * common.mk, defs/gmake.mk: Added `test-bundler` task for test suite
    of bundler.
  * tool/sync_default_gems.rb: Added sync task for bundler.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 24 insertions, 0 deletions

diff --git a/spec/bundler/bundler/stub_specification_spec.rb b/spec/bundler/bundler/stub_specification_spec.rb
new file mode 100644
index 0000000000..5521d83769
--- /dev/null
+++ b/spec/bundler/bundler/stub_specification_spec.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+RSpec.describe Bundler::StubSpecification do
+  let(:gemspec) do
+    Gem::Specification.new do |s|
+      s.name = "gemname"
+      s.version = "1.0.0"
+      s.loaded_from = __FILE__
+    end
+  end
+
+  let(:with_bundler_stub_spec) do
+    described_class.from_stub(gemspec)
+  end
+
+  if Bundler.rubygems.provides?(">= 2.1")
+    describe "#from_stub" do
+      it "returns the same stub if already a Bundler::StubSpecification" do
+        stub = described_class.from_stub(with_bundler_stub_spec)
+        expect(stub).to be(with_bundler_stub_spec)
+      end
+    end
+  end
+end