rubyspec: Added a few new specs for save/restore of $!

jruby · Aug 19, 2015 · 51af4f8 · 51af4f8
1 parent 93e2add
commit 51af4f8
Showing 1 changed file with 99 additions and 0 deletions.
diff --git a/spec/ruby/language/predefined_spec.rb b/spec/ruby/language/predefined_spec.rb
@@ -262,6 +262,105 @@ def method_missing(*args)
 
     $!.should == nil
   end
+
+  describe "in bodies without ensure"
+    it "should be cleared when an exception is rescued" do
+      begin
+        raise 'foo'
+      rescue
+      end
+      $!.should == nil
+    end
+
+    it "should be cleared when an exception is rescued even when a non-local return is present" do
+      def foo; yield; end
+      def bar
+        begin
+          raise
+        rescue Exception
+          foo { return }
+        end
+      end
+
+      bar
+      $!.should == nil
+    end
+
+    it "should not be cleared when an exception is not rescued" do
+      e = MyException.new
+      begin
+        begin
+          begin
+            raise e
+          rescue TypeError
+          end
+        ensure
+          $!.should == e
+        end
+      rescue
+      end
+    end
+
+    it "should not be cleared when an exception is rescued and rethrown" do
+      e = MyException.new
+      begin
+        begin
+          begin
+            raise e
+          rescue => e
+            raise e
+          end
+        ensure
+          $!.should == e
+        end
+      rescue
+      end
+    end
+  end
+
+  describe "in ensure-protected bodies"
+    it "should be cleared when an exception is rescued" do
+      begin
+        raise 'foo'
+      rescue
+      ensure
+      end
+      $!.should == nil
+    end
+
+    it "should not be cleared when an exception is not rescued" do
+      e = MyException.new
+      begin
+        begin
+          begin
+            raise e
+          rescue TypeError
+          ensure
+          end
+        ensure
+          $!.should == e
+        end
+      rescue
+      end
+    end
+
+    it "should not be cleared when an exception is rescued and rethrown" do
+      e = MyException.new
+      begin
+        begin
+          begin
+            raise e
+          rescue => e
+            raise e
+          ensure
+          end
+        ensure
+          $!.should == e
+        end
+      rescue
+      end
+    end
+  end
 end
 
 =begin