Index: tests/corelib/iterable_min_max_test.dart |
diff --git a/tests/corelib/iterable_min_max_test.dart b/tests/corelib/iterable_min_max_test.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0a64a01a7a1c866c6028d197500d32caa758598a |
--- /dev/null |
+++ b/tests/corelib/iterable_min_max_test.dart |
@@ -0,0 +1,78 @@ |
+// Copyright (c) 2012, 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 "dart:collection"; |
+ |
+class C { |
+ final x; |
+ const C(this.x); |
+ int get hashCode => x.hashCode; |
+ bool operator==(var other) => other is C && x == other.x; |
+} |
+ |
+const inf = double.INFINITY; |
+ |
+var intList = const [0, 1, -1, -5, 5, -1000, 1000, -7, 7]; |
+var doubleList = const [-0.0, 0.0, -1.0, 1.0, -1000.0, 1000.0, -inf, inf]; |
+var stringList = const ["bbb", "bba", "bab", "abb", "bbc", "bcb", "cbb", "bb"]; |
+var cList = const [const C(5), const C(3), const C(8), |
+ const C(0), const C(10), const C(6)]; |
+int compareC(C a, C b) => a.x.compareTo(b.x); |
+ |
+ |
+testMinMax(iterable, min, max) { |
+ Expect.equals(min, iterable.min()); |
+ Expect.equals(min, iterable.min(Comparable.compare)); |
+ Expect.equals(min, Collections.min(iterable)); |
+ Expect.equals(min, Collections.min(iterable, Comparable.compare)); |
+ Expect.equals(max, iterable.min((a, b) => Comparable.compare(b, a))); |
+ |
+ Expect.equals(max, iterable.max()); |
+ Expect.equals(max, iterable.max(Comparable.compare)); |
+ Expect.equals(max, Collections.max(iterable)); |
+ Expect.equals(max, Collections.max(iterable, Comparable.compare)); |
+ Expect.equals(min, iterable.max((a, b) => Comparable.compare(b, a))); |
+} |
+ |
+ |
+main() { |
+ testMinMax(const [], null, null); |
+ testMinMax([], null, null); |
+ testMinMax(new Set(), null, null); |
+ |
+ testMinMax(intList, -1000, 1000); // Const list. |
+ testMinMax(new List.from(intList), -1000, 1000); // Non-const list. |
+ testMinMax(new Set.from(intList), -1000, 1000); // Set. |
+ |
+ testMinMax(doubleList, -inf, inf); |
+ testMinMax(new List.from(doubleList), -inf, inf); |
+ testMinMax(new Set.from(doubleList), -inf, inf); |
+ |
+ testMinMax(stringList, "abb", "cbb"); |
+ testMinMax(new List.from(stringList), "abb", "cbb"); |
+ testMinMax(new Set.from(stringList), "abb", "cbb"); |
+ |
+ // Objects that are not Comparable. |
+ Expect.equals(const C(0), cList.min(compareC)); |
+ Expect.equals(const C(0), Collections.min(cList, compareC)); |
+ Expect.equals(const C(0), new List.from(cList).min(compareC)); |
+ Expect.equals(const C(0), Collections.min(new List.from(cList), compareC)); |
+ Expect.equals(const C(0), new Set.from(cList).min(compareC)); |
+ Expect.equals(const C(0), Collections.min(new Set.from(cList), compareC)); |
+ |
+ Expect.equals(const C(10), cList.max(compareC)); |
+ Expect.equals(const C(10), Collections.max(cList, compareC)); |
+ Expect.equals(const C(10), new List.from(cList).max(compareC)); |
+ Expect.equals(const C(10), Collections.max(new List.from(cList), compareC)); |
+ Expect.equals(const C(10), new Set.from(cList).max(compareC)); |
+ Expect.equals(const C(10), Collections.max(new Set.from(cList), compareC)); |
+ |
+ bool checkedMode = false; |
+ assert(checkedMode = true); |
+ Expect.throws(cList.min, (e) => checkedMode ? e is TypeError |
+ : e is NoSuchMethodError); |
+ Expect.throws(cList.max, (e) => checkedMode ? e is TypeError |
+ : e is NoSuchMethodError); |
+} |
+ |