diff --git a/translator/test/org/jetbrains/k2js/test/FunctionTest.java b/translator/test/org/jetbrains/k2js/test/FunctionTest.java
index 75632d5a5ad..3b41d6d0a41 100644
--- a/translator/test/org/jetbrains/k2js/test/FunctionTest.java
+++ b/translator/test/org/jetbrains/k2js/test/FunctionTest.java
@@ -38,4 +38,20 @@ public class FunctionTest extends AbstractExpressionTest {
     public void loopClosure() throws Exception {
         testFooBoxIsTrue("loopClosure.kt");
     }
+
+    @Test
+    public void functionLiteralAsParameter() throws Exception {
+        testFooBoxIsTrue("functionLiteralAsParameter.kt");
+    }
+
+    @Test
+    public void closureWithParameter() throws Exception {
+        testFooBoxIsOk("closureWithParameter.jet");
+    }
+
+    @Test
+    public void closureWithParameterAndBoxing() throws Exception {
+        testFooBoxIsOk("closureWithParameterAndBoxing.jet");
+    }
+
 }
diff --git a/translator/test/org/jetbrains/k2js/test/TraitTest.java b/translator/test/org/jetbrains/k2js/test/TraitTest.java
index 6546702c631..d8346238200 100644
--- a/translator/test/org/jetbrains/k2js/test/TraitTest.java
+++ b/translator/test/org/jetbrains/k2js/test/TraitTest.java
@@ -44,4 +44,10 @@ public final class TraitTest extends IncludeLibraryTest {
         testFooBoxIsTrue("traitExtendsTwoTraits.kt");
     }
 
+    @Test
+    public void funDelegation() throws Exception {
+        testFooBoxIsOk("funDelegation.jet");
+    }
+
+
 }
diff --git a/translator/test/org/jetbrains/k2js/test/TranslationTest.java b/translator/test/org/jetbrains/k2js/test/TranslationTest.java
index 80b4e3eef0c..ae1ddbd0b58 100644
--- a/translator/test/org/jetbrains/k2js/test/TranslationTest.java
+++ b/translator/test/org/jetbrains/k2js/test/TranslationTest.java
@@ -100,4 +100,9 @@ public abstract class TranslationTest {
     protected void testFooBoxIsTrue(String filename) throws Exception {
         testFunctionOutput(filename, "foo", "box", true);
     }
+
+    protected void testFooBoxIsOk(String filename) throws Exception {
+        testFunctionOutput(filename, "foo", "box", "OK");
+    }
+
 }
diff --git a/translator/testFiles/expression/function/cases/closureWithParameter.jet b/translator/testFiles/expression/function/cases/closureWithParameter.jet
new file mode 100644
index 00000000000..8674e078051
--- /dev/null
+++ b/translator/testFiles/expression/function/cases/closureWithParameter.jet
@@ -0,0 +1,9 @@
+namespace foo
+
+fun box() : String {
+    return apply( "OK", {(arg: String) => arg } )
+}
+
+fun apply(arg : String, f : fun (p:String) : String) : String {
+    return f(arg)
+}
diff --git a/translator/testFiles/expression/function/cases/closureWithParameterAndBoxing.jet b/translator/testFiles/expression/function/cases/closureWithParameterAndBoxing.jet
new file mode 100644
index 00000000000..3b05060982d
--- /dev/null
+++ b/translator/testFiles/expression/function/cases/closureWithParameterAndBoxing.jet
@@ -0,0 +1,9 @@
+namespace foo
+
+fun box() : String {
+    return if (apply( 5, {(arg: Int) => arg + 13 } ) == 18) "OK" else "fail"
+}
+
+fun apply(arg : Int, f : fun (p:Int) : Int) : Int {
+    return f(arg)
+}
diff --git a/translator/testFiles/expression/function/cases/functionLiteralAsParameter.kt b/translator/testFiles/expression/function/cases/functionLiteralAsParameter.kt
new file mode 100644
index 00000000000..3ec397a9127
--- /dev/null
+++ b/translator/testFiles/expression/function/cases/functionLiteralAsParameter.kt
@@ -0,0 +1,10 @@
+namespace foo
+
+fun apply(f : fun(Int) : Int, t : Int) : Int {
+    return f(t)
+}
+
+
+fun box() : Boolean {
+  return apply({(a: Int) => a + 5 }, 3) == 8
+}
\ No newline at end of file
diff --git a/translator/testFiles/trait/cases/funDelegation.jet b/translator/testFiles/trait/cases/funDelegation.jet
new file mode 100644
index 00000000000..8a5258d2cee
--- /dev/null
+++ b/translator/testFiles/trait/cases/funDelegation.jet
@@ -0,0 +1,19 @@
+namespace foo
+
+open class Base() {
+    fun n(n : Int) : Int = n + 1
+}
+
+trait Abstract {}
+
+class Derived1() : Base(), Abstract {}
+class Derived2() : Abstract, Base() {}
+
+fun test(s : Base) : Boolean = s.n(238) == 239
+
+fun box() : String {
+    if (!test(Base())) return "Fail #1"
+    if (!test(Derived1())) return "Fail #2"
+    if (!test(Derived2())) return "Fail #3"
+    return "OK"
+}
\ No newline at end of file