Add corelib tests

test/codegen/corelib/splay_tree_from_iterable_test.dart

Index: test/codegen/corelib/splay_tree_from_iterable_test.dart
diff --git a/test/codegen/corelib/splay_tree_from_iterable_test.dart b/test/codegen/corelib/splay_tree_from_iterable_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..6ba1818b51ca49371c8a06bea0ef468cfd458f29
--- /dev/null
+++ b/test/codegen/corelib/splay_tree_from_iterable_test.dart
@@ -0,0 +1,173 @@
+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import "package:expect/expect.dart";
+import 'dart:collection';
+
+main() {
+  defaultFunctionValuesTest();
+  defaultKeyFunctionTest();
+  defaultValueFunctionTest();
+  noDefaultValuesTest();
+  emptyIterableTest();
+  equalElementsTest();
+  genericTypeTest();
+  typedTest();
+}
+
+void defaultFunctionValuesTest() {
+  var map = new SplayTreeMap.fromIterable([1, 2, 3]);
+
+  Expect.isTrue(map is Map);
+  Expect.isTrue(map is SplayTreeMap);
+  Expect.isFalse(map is HashMap);
+
+  Expect.equals(3, map.length);
+  Expect.equals(3, map.keys.length);
+  Expect.equals(3, map.values.length);
+
+  Expect.equals(1, map[1]);
+  Expect.equals(2, map[2]);
+  Expect.equals(3, map[3]);
+}
+
+void defaultKeyFunctionTest() {
+  var map = new SplayTreeMap.fromIterable([1, 2, 3], value: (x) => x + 1);
+
+  Expect.isTrue(map is Map);
+  Expect.isTrue(map is SplayTreeMap);
+  Expect.isFalse(map is HashMap);
+
+  Expect.equals(3, map.length);
+  Expect.equals(3, map.keys.length);
+  Expect.equals(3, map.values.length);
+
+  Expect.equals(2, map[1]);
+  Expect.equals(3, map[2]);
+  Expect.equals(4, map[3]);
+}
+
+void defaultValueFunctionTest() {
+  var map = new SplayTreeMap.fromIterable([1, 2, 3], key: (x) => x + 1);
+
+  Expect.isTrue(map is Map);
+  Expect.isTrue(map is SplayTreeMap);
+  Expect.isFalse(map is HashMap);
+
+  Expect.equals(3, map.length);
+  Expect.equals(3, map.keys.length);
+  Expect.equals(3, map.values.length);
+
+  Expect.equals(1, map[2]);
+  Expect.equals(2, map[3]);
+  Expect.equals(3, map[4]);
+}
+
+void noDefaultValuesTest() {
+  var map = new SplayTreeMap.fromIterable([1, 2, 3],
+      key: (x) => x + 1, value: (x) => x - 1);
+
+  Expect.isTrue(map is Map);
+  Expect.isTrue(map is SplayTreeMap);
+  Expect.isFalse(map is HashMap);
+
+  Expect.equals(3, map.length);
+  Expect.equals(3, map.keys.length);
+  Expect.equals(3, map.values.length);
+
+  Expect.equals(0, map[2]);
+  Expect.equals(1, map[3]);
+  Expect.equals(2, map[4]);
+}
+
+void emptyIterableTest() {
+  var map = new SplayTreeMap.fromIterable([]);
+
+  Expect.isTrue(map is Map);
+  Expect.isTrue(map is SplayTreeMap);
+  Expect.isFalse(map is HashMap);
+
+  Expect.equals(0, map.length);
+  Expect.equals(0, map.keys.length);
+  Expect.equals(0, map.values.length);
+}
+
+void equalElementsTest() {
+  var map = new SplayTreeMap.fromIterable([1, 2, 2], key: (x) => x + 1);
+
+  Expect.isTrue(map is Map);
+  Expect.isTrue(map is SplayTreeMap);
+  Expect.isFalse(map is HashMap);
+
+  Expect.equals(2, map.length);
+  Expect.equals(2, map.keys.length);
+  Expect.equals(2, map.values.length);
+
+  Expect.equals(1, map[2]);
+  Expect.equals(2, map[3]);
+}
+
+void genericTypeTest() {
+  var map = new SplayTreeMap<int, String>.fromIterable([1, 2, 3], value: (x) => '$x');
+  Expect.isTrue(map is Map<int, String>);
+  Expect.isTrue(map is SplayTreeMap<int, String>);
+
+  // Make sure it is not just SplayTreeMap<dynamic, dynamic>.
+  Expect.isFalse(map is SplayTreeMap<String, dynamic>);
+  Expect.isFalse(map is SplayTreeMap<dynamic, int>);
+}
+
+// Test in checked mode with explicitly given types.
+void typedTest() {
+  bool isCheckedMode = false;
+  assert((isCheckedMode = true));
+  if (!isCheckedMode) return;
+
+  // Assign functions to untyped function variables.
+  Function key = (int v) => "$v";
+  Function value = (int v) => v.isOdd;
+  Function id = (int i) => i;
+
+  Expect.throws(() {
+    new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
+      key: key
+      // No "value" map, defaults to identity, which returns int, not bool.
+    );
+  });
+
+  Expect.throws(() {
+    new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
+      // No "key" map, defaults to identity, which returns int, not String.
+      value: value
+    );
+  });
+
+  Expect.throws(() {
+    new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
+      key: id,     // wrong type.
+      value: value
+    );
+  });
+
+  Expect.throws(() {
+    new SplayTreeMap<String,bool>.fromIterable(<int>[1, 2, 3],
+      key: key,
+      value: id    // wrong type.
+    );
+  });
+
+  // But it works with explicit types when used correctly.
+  SplayTreeMap<String, bool> map =
+      new SplayTreeMap<String, bool>.fromIterable(<int>[1, 2, 3],
+                                                  key: key,
+                                                  value: value);
+  Iterable<String> keys = map.keys;
+  Iterable<bool> values = map.values;
+  List<String> keyList = keys.toList();
+  List<bool> valueList = values.toList();
+  Expect.equals(3, keyList.length);
+  Expect.equals(3, valueList.length);
+  Expect.equals(keys.first, map.firstKey());
+  Expect.equals(keys.last, map.lastKey());
+}