1 files changed, 13 insertions, 0 deletions
diff --git a/test/t/codegen.rb b/test/t/codegen.rb
index 89ad94bae..7177053ae 100644
--- a/test/t/codegen.rb
+++ b/test/t/codegen.rb
@@ -1,6 +1,19 @@
 ##
 # Codegen tests
 
+assert('peephole optimization does not eliminate move whose result is reused') do
+  assert_raise LocalJumpError do
+    def method
+      yield
+    end
+    method(&a &&= 0)
+  end
+end
+
+assert('empty condition in ternary expression parses correctly') do
+  assert_equal(() ? 1 : 2, 2)
+end
+
 assert('codegen absorbs arguments to redo and retry if they are the argument of a call') do
   assert_nothing_raised do
     a=*"1", case nil