Lazy made serializable.

libraries/stdlib/test/utils/LazyTest.kt

@@ -0,0 +1,45 @@
+package test.utils
+
+import kotlin.*
+import kotlin.test.*
+import org.junit.Test as test
+
+class LazyTest {
+
+    test fun initializationCalledOnce() {
+        var callCount = 0
+        val lazyInt = lazy { ++callCount }
+
+        assertEquals(0, callCount)
+        assertEquals(1, lazyInt.value)
+        assertEquals(1, callCount)
+
+        lazyInt.value
+        assertEquals(1, callCount)
+    }
+
+    test fun valueCreated() {
+        var callCount = 0
+        val lazyInt = lazy { ++callCount }
+
+        assertFalse(lazyInt.valueCreated)
+        assertEquals(0, callCount)
+
+        lazyInt.value
+
+        assertTrue(lazyInt.valueCreated)
+    }
+
+
+    test fun lazyToString() {
+        var callCount = 0
+        val lazyInt = lazy { ++callCount }
+
+        assertNotEquals("1", lazyInt.toString())
+        assertEquals(0, callCount)
+
+        assertEquals(1, lazyInt.value)
+        assertEquals("1", lazyInt.toString())
+        assertEquals(1, callCount)
+    }
+}