diff --git a/libraries/stdlib/test/ArraysTest.kt b/libraries/stdlib/test/ArraysTest.kt
new file mode 100644
index 00000000000..4fe0f3b133b
--- /dev/null
+++ b/libraries/stdlib/test/ArraysTest.kt
@@ -0,0 +1,42 @@
+package test.arrays
+
+import kotlin.test.*
+
+import junit.framework.TestCase
+
+class ArraysTest() : TestCase() {
+
+    fun testCopyOf() {
+        checkContent(booleanArray(true, false, true, false, true, false).copyOf().iterator(), 6) { it % 2 == 0 }
+        checkContent(byteArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it.toByte() }
+        checkContent(shortArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it.toShort() }
+        checkContent(intArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it }
+        checkContent(longArray(0, 1, 2, 3, 4, 5).copyOf().iterator(), 6) { it.toLong() }
+        checkContent(floatArray(0.toFloat(), 1.toFloat(), 2.toFloat(), 3.toFloat()).copyOf().iterator(), 4) { it.toFloat() }
+        checkContent(doubleArray(0.0, 1.0, 2.0, 3.0, 4.0, 5.0).copyOf().iterator(), 6) { it.toDouble() }
+        checkContent(charArray('0', '1', '2', '3', '4', '5').copyOf().iterator(), 6) { (it + '0').toChar() }
+    }
+
+    fun testCopyOfRange() {
+        checkContent(booleanArray(true, false, true, false, true, false).copyOfRange(0, 3).iterator(), 3) { it % 2 == 0 }
+        checkContent(byteArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it.toByte() }
+        checkContent(shortArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it.toShort() }
+        checkContent(intArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it }
+        checkContent(longArray(0, 1, 2, 3, 4, 5).copyOfRange(0, 3).iterator(), 3) { it.toLong() }
+        checkContent(floatArray(0.toFloat(), 1.toFloat(), 2.toFloat(), 3.toFloat()).copyOfRange(0, 3).iterator(), 3) { it.toFloat() }
+        checkContent(doubleArray(0.0, 1.0, 2.0, 3.0, 4.0, 5.0).copyOfRange(0, 3).iterator(), 3) { it.toDouble() }
+        checkContent(charArray('0', '1', '2', '3', '4', '5').copyOfRange(0, 3).iterator(), 3) { (it + '0').toChar() }
+    }
+
+
+    fun <T> checkContent(val iter : Iterator<T>, val length : Int, val value : (Int) -> T) {
+        var idx = 0
+        while (idx != length && iter.hasNext) {
+            assertEquals(value(idx++), iter.next(), "Invalid element")
+        }
+
+        assertEquals(length, idx, "Invalid length")
+        assertFalse(iter.hasNext, "Invalid length (hasNext)")
+    }
+
+}