fixed mapping sort and max functions from java.util.Collections

libraries/stdlib/test/js/MapJsTest.kt

@@ -44,8 +44,7 @@ class MapJsTest {
 
     test fun hashMapValues() {
         val map = createTestHashMap()
-        //todo: fixme after sort() will be fixed for JS
-        assertEquals(VALUES, map.values())
+        assertEquals(VALUES.toList(), map.values().toSortedList())
     }
 
     fun createTestHashMap(): HashMap<String, Int> {

libraries/stdlib/test/js/javautilCollectionsTest.kt

@@ -0,0 +1,32 @@
+package testPackage
+
+import java.util.Collections
+import java.util.ArrayList
+
+import kotlin.test.*
+import org.junit.Test as test
+
+fun <T> List<T>.toArrayList() = this.toCollection(ArrayList<T>())
+
+class JavautilCollectionsTest {
+    val TEST_LIST = array(2, 0, 9, 7, 1).toList()
+    val SORTED_TEST_LIST = array(0, 1, 2, 7, 9).toList()
+    val MAX_ELEMENT = 9
+    val COMPARATOR = comparator { (x: Int, y: Int) ->  if (x > y) 1 else if (x < y) -1 else 0 }
+
+    test fun maxWithComparator() {
+        assertEquals(MAX_ELEMENT, Collections.max(TEST_LIST, COMPARATOR))
+    }
+
+    test fun sort() {
+        val list = TEST_LIST.toArrayList()
+        Collections.sort(list)
+        assertEquals(SORTED_TEST_LIST, list)
+    }
+
+    test fun sortWithComparator() {
+        val list = TEST_LIST.toArrayList()
+        Collections.sort(list, COMPARATOR)
+        assertEquals(SORTED_TEST_LIST, list)
+    }
+}