Fix usage of many iterable functions on floating point typed lists.

tests/lib/typed_data/typed_list_iterable_test.dart

Index: tests/lib/typed_data/typed_list_iterable_test.dart
diff --git a/tests/lib/typed_data/typed_list_iterable_test.dart b/tests/lib/typed_data/typed_list_iterable_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..3942c1d361dde9d20f22f43e2804ec225208eeb3
--- /dev/null
+++ b/tests/lib/typed_data/typed_list_iterable_test.dart
@@ -0,0 +1,184 @@
+// Copyright (c) 2013, 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:typed_data';
+
+void testIterableFunctions(list, first, last) {
+  assert(list.length > 0);
+
+  Expect.equals(first, list.first);
+  Expect.equals(last, list.last);
+  Expect.equals(first, list.firstWhere((x) => x == first));
+  Expect.equals(last, list.lastWhere((x) => x == last));
+  if (list.length == 1) {
+    Expect.equals(first, list.single);
+    Expect.equals(first, list.singleWhere((x) => x == last));
+  } else {
+    Expect.throws(() => list.single, (e) => e is StateError);
+    bool isFirst = true;
+    Expect.equals(first, list.singleWhere((x) {
+      if (isFirst) {
+        isFirst = false;
+        return true;
+      }
+      return false;
+    }));
+  }
+  Expect.isFalse(list.isEmpty);
+
+  int i = 0;
+  for (var x in list) {
+    Expect.equals(list[i++], x);
+  }
+  Expect.isTrue(list.any((x) => x == last));
+  Expect.isFalse(list.any((x) => false));
+  Expect.isTrue(list.contains(last));
+  Expect.equals(first, list.elementAt(0));
+  Expect.isTrue(list.every((x) => true));
+  Expect.isFalse(list.every((x) => x != last));
+  Expect.listEquals([], list.expand((x) => []).toList());
+  var expand2 = list.expand((x) => [x, x]);
+  i = 0;
+  for (var x in expand2) {
+    Expect.equals(list[i ~/ 2], x);
+    i++;
+  }
+  Expect.equals(2 * list.length, i);
+  Expect.listEquals(list, list.fold([], (result, x) => result..add(x)));
+  i = 0;
+  list.forEach((x) {
+    Expect.equals(list[i++], x);
+  });
+  Expect.equals(list.toList().join("*"), list.join("*"));
+  Expect.listEquals(list, list.map((x) => x).toList());
+  int mapCount = 0;
+  var mappedList = list.map((x) {
+    mapCount++;
+    return x;
+  });
+  Expect.equals(0, mapCount);
+  Expect.equals(list.length, mappedList.length);
+  Expect.equals(0, mapCount);
+  mappedList.join();
+  Expect.equals(list.length, mapCount);
+
+  Expect.listEquals(list, list.where((x) => true).toList());
+  int whereCount = 0;
+  var whereList = list.where((x) {
+    whereCount++;
+    return true;
+  });
+  Expect.equals(0, whereCount);
+  Expect.equals(list.length, whereList.length);
+  Expect.equals(list.length, whereCount);
+
+  if (list.length > 1) {
+    int reduceResult = 1;
+    Expect.equals(list.length, list.reduce((x, y) => ++reduceResult));
+  } else {
+    Expect.equals(first, list.reduce((x, y) { throw "should not be called"; }));
+  }
+
+  Expect.isTrue(list.skip(list.length).isEmpty);
+  Expect.listEquals(list, list.skip(0).toList());
+  Expect.isTrue(list.skipWhile((x) => true).isEmpty);
+  Expect.listEquals(list, list.skipWhile((x) => false).toList());
+  Expect.listEquals(list, list.take(list.length).toList());
+  Expect.isTrue(list.take(0).isEmpty);
+  Expect.isTrue(list.takeWhile((x) => false).isEmpty);
+  Expect.listEquals(list, list.takeWhile((x) => true).toList());
+  Expect.listEquals(list, list.toList().toList());
+  var l2 = list.toList();
+  l2.add(first);
+  Expect.equals(first, l2.last);
+  var l3 = list.toList(growable: false);
+  Expect.throws(() => l3.add(last), (e) => e is UnsupportedError);
+}
+
+void emptyChecks(list) {
+  assert(list.length == 0);
+
+  Expect.isTrue(list.isEmpty);
+
+  Expect.throws(() => list.first, (e) => e is StateError);
+  Expect.throws(() => list.last, (e) => e is StateError);
+  Expect.throws(() => list.single, (e) => e is StateError);
+  Expect.throws(() => list.firstWhere((x) => true), (e) => e is StateError);
+  Expect.throws(() => list.lastWhere((x) => true), (e) => e is StateError);
+  Expect.throws(() => list.singleWhere((x) => true), (e) => e is StateError);
+
+  Expect.isFalse(list.any((x) => true));
+  Expect.isFalse(list.contains(null));
+  Expect.throws(() => list.elementAt(0), (e) => e is RangeError);
+  Expect.isTrue(list.every((x) => false));
+  Expect.listEquals([], list.expand((x) => []).toList());
+  Expect.listEquals([], list.expand((x) => [x, x]).toList());
+  Expect.listEquals(
+      [], list.expand((x) { throw "should not be reached"; }).toList());
+  Expect.listEquals([], list.fold([], (result, x) => result..add(x)));
+  Expect.equals(list.toList().join("*"), list.join("*"));
+  Expect.listEquals(list, list.map((x) => x).toList());
+  int mapCount = 0;
+  var mappedList = list.map((x) {
+    mapCount++;
+    return x;
+  });
+  Expect.equals(0, mapCount);
+  Expect.equals(list.length, mappedList.length);
+  Expect.equals(0, mapCount);
+  mappedList.join();
+  Expect.equals(list.length, mapCount);
+
+  Expect.listEquals(list, list.where((x) => true).toList());
+  int whereCount = 0;
+  var whereList = list.where((x) {
+    whereCount++;
+    return true;
+  });
+  Expect.equals(0, whereCount);
+  Expect.equals(list.length, whereList.length);
+  Expect.equals(list.length, whereCount);
+
+  Expect.throws(() => list.reduce((x, y) => x), (e) => e is StateError);
+
+  Expect.isTrue(list.skip(list.length).isEmpty);
+  Expect.isTrue(list.skip(0).isEmpty);
+  Expect.isTrue(list.skipWhile((x) => true).isEmpty);
+  Expect.isTrue(list.skipWhile((x) => false).isEmpty);
+  Expect.isTrue(list.take(list.length).isEmpty);
+  Expect.isTrue(list.take(0).isEmpty);
+  Expect.isTrue(list.takeWhile((x) => false).isEmpty);
+  Expect.isTrue(list.takeWhile((x) => true).isEmpty);
+  Expect.isTrue(list.toList().isEmpty);
+  var l2 = list.toList();
+  l2.add(0);
+  Expect.equals(0, l2.last);
+  var l3 = list.toList(growable: false);
+  Expect.throws(() => l3.add(0), (e) => e is UnsupportedError);
+}
+
+main() {
+  testIterableFunctions(new Float32List.fromList([1.5, 9.5]), 1.5, 9.5);
+  testIterableFunctions(new Float64List.fromList([1.5, 9.5]), 1.5, 9.5);
+  testIterableFunctions(new Int8List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Int16List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Int32List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Int64List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Uint8List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Uint16List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Uint32List.fromList([3, 9]), 3, 9);
+  testIterableFunctions(new Uint64List.fromList([3, 9]), 3, 9);
+
+  emptyChecks(new Float32List(0));
+  emptyChecks(new Float64List(0));
+  emptyChecks(new Int8List(0));
+  emptyChecks(new Int16List(0));
+  emptyChecks(new Int32List(0));
+  emptyChecks(new Int64List(0));
+  emptyChecks(new Uint8List(0));
+  emptyChecks(new Uint16List(0));
+  emptyChecks(new Uint32List(0));
+  emptyChecks(new Uint64List(0));
+}