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// 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.
library dynamic_type_helper;
import 'package:expect/expect.dart';
/// Checks that a dynamic type error is thrown when [f] is executed
/// and [expectTypeError] is `true`.
void testDynamicTypeError(bool expectTypeError, f(), [String? message]) {
if (expectTypeError) {
checkDynamicTypeError(f, message);
} else {
checkNoDynamicTypeError(f, message);
}
}
/// Checks that a dynamic type error is thrown when f is executed.
void checkDynamicTypeError(f(), [String? message]) {
message = message != null ? ': $message' : '';
try {
f();
Expect.fail('Missing type error$message.');
} on TypeError catch (e) {}
}
/// Checks that no dynamic type error is thrown when [f] is executed.
void checkNoDynamicTypeError(f(), [String? message]) {
message = message != null ? ': $message' : '';
try {
f();
} on TypeError catch (e) {
Expect.fail('Unexpected type error$message.');
}
}