1 files changed, 29 insertions, 0 deletions
diff --git a/spec/ruby/language/method_spec.rb b/spec/ruby/language/method_spec.rb
index acca074974..b80b314f6f 100644
--- a/spec/ruby/language/method_spec.rb
+++ b/spec/ruby/language/method_spec.rb
@@ -1679,6 +1679,15 @@ ruby_version_is "3.0" do
 
         m.should == 42
       end
+
+      context "without parenthesis" do
+        evaluate <<-ruby do
+          def m = 42
+        ruby
+
+          m.should == 42
+        end
+      end
     end
 
     context "with arguments" do
@@ -1716,6 +1725,16 @@ ruby_version_is "3.0" do
         m("meow", num: 2).should == "meow" * 4
       end
     end
+
+    ruby_version_is ""..."3.0" do
+      context "inside 'endless' method definitions" do
+        it "does not allow method calls without parenthesis" do
+          -> {
+            eval("def greet(person) = 'Hi, '.concat person")
+          }.should raise_error(SyntaxError)
+        end
+      end
+    end
   end
 
   describe "Keyword arguments are now separated from positional arguments" do
@@ -1824,4 +1843,14 @@ ruby_version_is "3.1" do
       end
     end
   end
+
+  describe "Inside 'endless' method definitions" do
+    it "allows method calls without parenthesis" do
+      eval <<-ruby
+        def greet(person) = "Hi, ".concat person
+      ruby
+
+      greet("Homer").should == "Hi, Homer"
+    end
+  end
 end