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Unified Diff: tests/corelib/iterable_generate_test.dart

Issue 3000543002: Migrate test block 11 to Dart 2.0. (Closed)
Patch Set: Fix merge problems and update test status with head changes Created 3 years, 4 months ago
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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);
-}
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