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Unified Diff: tests/corelib/list_test.dart

Issue 1318943005: Update range errors to agree on the numbers. (Closed) Base URL: https://github.com/dart-lang/sdk.git@master
Patch Set: More tests Created 5 years, 3 months ago
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« runtime/vm/exceptions.h ('K') | « sdk/lib/core/errors.dart ('k') | no next file » | no next file with comments »
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Index: tests/corelib/list_test.dart
diff --git a/tests/corelib/list_test.dart b/tests/corelib/list_test.dart
index 5187ee84ccce4cb210548b52923e1db406914798..c26c1cf50b175f19d2885d4f37d917709ae4fc88 100644
--- a/tests/corelib/list_test.dart
+++ b/tests/corelib/list_test.dart
@@ -46,6 +46,89 @@ void main() {
testTypedGrowableList(new Int32List(0).toList());
testListConstructor();
+
+ testErrors();
+}
+
+void testErrors() {
+ // Regression for issue http://dartbug.com/24295
+ testIndexError(list, index, name) {
+ try {
+ list[list.length];
+ } catch (err, s) {
+ Expect.isTrue(err is RangeError, "$name[$index]");
+ Expect.equals(list.length, err.invalidValue, "$name[$index] value");
+ Expect.equals(list.length - 1, err.end, "$name[$index] end");
+ Expect.equals(0, err.start, "$name[$index] start");
+ }
+ }
+ testIndex(list, name) {
+ testIndexError(list, list.length, name); // Just too big.
+ testIndexError(list, -1, name); // Negative.
+ testIndexError(list, 0x123456789, name); // > 2^32.
+ testIndexError(list, -0x123456789, name); // < -2^32.
+ }
+
+ // Slices.
+ testSliceError(list, start, end, name) {
+ name = "$name[$start:$end]";
+ var realError;
+ try {
+ RangeError.checkValidRange(start, end, list.length);
+ } catch (e) {
+ realError = e;
+ }
+ var result;
+ try {
+ result = list.sublist(start, end);
+ } catch (actualError) {
+ Expect.isNotNull(realError, "$name should not fail");
+ Expect.isTrue(actualError is RangeError, "$name is-error: $actualError");
+ Expect.equals(realError.name, actualError.name, "$name name");
+ Expect.equals(realError.invalidValue, actualError.invalidValue,
+ "$name[0:l+1] value");
+ Expect.equals(realError.start, actualError.start, "$name[0:l+1] start");
+ Expect.equals(realError.end, actualError.end, "$name[0:l+1] end");
+ return;
+ }
+ // Didn't throw.
+ Expect.isNull(realError, "$name should fail");
+ Expect.equals(end - start, result.length, "$name result length");
+ }
+
+ testSlice(list, name) {
+ testSliceError(list, 0, list.length, name); // Should not fail.
+ testSliceError(list, 0, list.length + 1, name);
+ testSliceError(list, 0, 0x123456789, name);
+ testSliceError(list, -1, list.length, name);
+ testSliceError(list, -0x123456789, list.length, name);
+ testSliceError(list, list.length + 1, list.length + 1, name);
+ testSliceError(list, -1, null, name);
+ if (list.length > 0) {
+ testSliceError(list, list.length, list.length - 1, name);
+ }
+ }
+
+ testRangeErrors(list, name) {
+ testIndex(list, "$name#${list.length} index");
+ testSlice(list, "$name#${list.length} slice");
+ }
+ // Empty lists.
+ testRangeErrors([], "list");
+ testRangeErrors(new List(0), "fixed-list");
+ testRangeErrors(const [], "const-list");
+ testRangeErrors(new List.unmodifiable([]), "unmodifiable");
+ testRangeErrors(new Uint8List(0), "typed-list");
+ testRangeErrors(new Uint8List.view(new Uint8List(0).buffer), "typed-list");
+ testRangeErrors([1, 2, 3].sublist(1, 1), "sub-list");
+ // Non-empty lists.
+ testRangeErrors([1, 2, 3], "list");
+ testRangeErrors(new List(3), "fixed-list");
+ testRangeErrors(const [1, 2, 3], "const-list");
+ testRangeErrors(new List.unmodifiable([1, 2, 3]), "unmodifiable");
+ testRangeErrors(new Uint8List(3), "typed-list");
+ testRangeErrors(new Uint8List.view(new Uint8List(3).buffer), "typed-list");
+ testRangeErrors([1, 2, 3, 4, 5].sublist(1, 3), "sub-list");
}
void testLength(int length, List list) {
@@ -475,6 +558,7 @@ void testGrowableListOperations(List list) {
class Yes {
operator ==(var other) => true;
+ int get hashCode => 0;
}
class MyList<E> extends ListBase<E> {
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