Index: tests/corelib/iterable_generate_test.dart |
diff --git a/tests/corelib/iterable_generate_test.dart b/tests/corelib/iterable_generate_test.dart |
deleted file mode 100644 |
index 4c2a9d58aa736104af0ba387dd4a3642c9219875..0000000000000000000000000000000000000000 |
--- a/tests/corelib/iterable_generate_test.dart |
+++ /dev/null |
@@ -1,79 +0,0 @@ |
-// 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() { |
- 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 (typeAssertionsEnabled) { |
- Expect.throws(() => new Iterable<String>.generate(5)); |
- } |
- |
- // Omitted generator function means `(int x) => x`, and the type parameters |
- // must then be compatible with `int`. |
- // Check that we catch invalid type parameters. |
- |
- // Valid types: |
- Iterable<int> iter1 = new Iterable<int>.generate(5); |
- Expect.equals(2, iter1.elementAt(2)); |
- Iterable<num> iter2 = new Iterable<num>.generate(5); |
- Expect.equals(2, iter2.elementAt(2)); |
- Iterable<Object> iter3 = new Iterable<Object>.generate(5); |
- Expect.equals(2, iter3.elementAt(2)); |
- Iterable<dynamic> iter4 = new Iterable<dynamic>.generate(5); |
- Expect.equals(2, iter4.elementAt(2)); |
- |
- // Invalid types: |
- Expect.throws(() => new Iterable<String>.generate(5)); |
- if (typeAssertionsEnabled) { // //# 01: ok |
- Expect.throws(() => new Iterable<Null>.generate(5).elementAt(2)); //# 01: continued |
- } else { // //# 01: continued |
- Iterable<dynamic> iter5 = new Iterable<Null>.generate(5); // //# 01: continued |
- Expect.equals(2, iter5.elementAt(2)); // //# 01: continued |
- } // //# 01: continued |
- Expect.throws(() => new Iterable<bool>.generate(5)); |
- |
- // Regression: https://github.com/dart-lang/sdk/issues/26358 |
- var count = 0; |
- var iter = new Iterable.generate(5, (v) { |
- count++; |
- return v; |
- }); |
- Expect.equals(0, count); |
- Expect.equals(2, iter.elementAt(2)); // Doesn't compute the earlier values. |
- Expect.equals(1, count); |
- Expect.equals(2, iter.skip(2).first); // Doesn't compute the skipped values. |
- Expect.equals(2, count); |
-} |