validate gemspec specifications (with a test)

closes #3639

1 files changed, 14 insertions, 0 deletions

diff --git a/spec/bundler/dsl_spec.rb b/spec/bundler/dsl_spec.rb
index 5c6be9ef..ca97d0c6 100644
--- a/spec/bundler/dsl_spec.rb
+++ b/spec/bundler/dsl_spec.rb
@@ -187,4 +187,18 @@ describe Bundler::Dsl do
         to raise_error(Bundler::GemfileError, /There was an error parsing `Gemfile`: can't modify frozen String. Bundler cannot continue./)
     end
   end
+
+  describe "#gemspec" do
+    it "errors on invalid specs" do
+      File.open(bundled_app("foo.gemspec"), "w") do |f|
+        f.write <<-G
+          Gem::Specification.new do |s|
+            s.name = "foo"
+          end
+        G
+      end
+      expect(Bundler).to receive(:default_gemfile).and_return(bundled_app("Gemfile"))
+      expect { subject.gemspec }.to raise_error(Bundler::InvalidOption).with_message(/missing value for attribute version/)
+    end
+  end
 end