Index: test/codegen/corelib/iterable_generate_test.dart |
diff --git a/test/codegen/corelib/iterable_generate_test.dart b/test/codegen/corelib/iterable_generate_test.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..851f14d4ea93e630c49e65d227eebef7f3f0b995 |
--- /dev/null |
+++ b/test/codegen/corelib/iterable_generate_test.dart |
@@ -0,0 +1,45 @@ |
+// 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"; |
+ |
+main() { |
+ bool checkedMode = false; |
+ assert((checkedMode = true)); |
+ void test(expectedList, generatedIterable) { |
+ Expect.equals(expectedList.length, generatedIterable.length); |
+ Expect.listEquals(expectedList, generatedIterable.toList()); |
+ } |
+ test([], new Iterable.generate(0)); |
+ test([0], new Iterable.generate(1)); |
+ test([0,1,2,3,4], new Iterable.generate(5)); |
+ test(["0","1","2","3","4"], new Iterable.generate(5, (x) => "$x")); |
+ test([2,3,4,5,6], new Iterable.generate(7).skip(2)); |
+ test([0,1,2,3,4], new Iterable.generate(7).take(5)); |
+ test([], new Iterable.generate(5).skip(6)); |
+ test([], new Iterable.generate(5).take(0)); |
+ test([], new Iterable.generate(5).take(3).skip(3)); |
+ test([], new Iterable.generate(5).skip(6).take(0)); |
+ |
+ // Test types. |
+ |
+ Iterable<int> it = new Iterable<int>.generate(5); |
+ Expect.isTrue(it is Iterable<int>); |
+ Expect.isTrue(it.iterator is Iterator<int>); |
+ Expect.isTrue(it is! Iterable<String>); |
+ Expect.isTrue(it.iterator is! Iterator<String>); |
+ test([0,1,2,3,4], it); |
+ |
+ Iterable<String> st = new Iterable<String>.generate(5, (x) => "$x"); |
+ Expect.isTrue(st is Iterable<String>); |
+ Expect.isTrue(st.iterator is Iterator<String>); |
+ Expect.isFalse(st is Iterable<int>); |
+ Expect.isFalse(st.iterator is Iterator<int>); |
+ test(["0","1","2","3","4"], st); |
+ |
+ if (checkedMode) { |
+ Expect.throws(() => new Iterable<String>.generate(5)); |
+ } |
+} |