diff --git a/idea/testData/codegen/classes/simplestClosure.jet b/idea/testData/codegen/classes/simplestClosure.jet
new file mode 100644
index 00000000000..b8b4a9d032a
--- /dev/null
+++ b/idea/testData/codegen/classes/simplestClosure.jet
@@ -0,0 +1,7 @@
+fun box() : String {
+    return if (invoker({49}) == 49) "OK" else "fail"
+}
+
+fun invoker(gen : {() : Int}) : Int {
+    return gen()
+}
\ No newline at end of file
diff --git a/idea/tests/org/jetbrains/jet/codegen/ClosuresGenTest.java b/idea/tests/org/jetbrains/jet/codegen/ClosuresGenTest.java
new file mode 100644
index 00000000000..be84866f774
--- /dev/null
+++ b/idea/tests/org/jetbrains/jet/codegen/ClosuresGenTest.java
@@ -0,0 +1,10 @@
+package org.jetbrains.jet.codegen;
+
+/**
+ * @author max
+ */
+public class ClosuresGenTest extends CodegenTestCase {
+    public void testSimplestClosure() throws Exception {
+        blackBoxFile("classes/simplestClosure.jet");
+    }
+}