Martin Kustermann
76548a7ab9
In dart2wasm applications are by default deployed in `-O2` mode which implies `--minify`. Given this is the default configuration for customers, we want good testing of this configuration and not large numbers of approved failures. => Rewrite various tests to not depend on `<obj>.runtimeType.toString()` Change-Id: I1108b28c63b8bec6ad94df0d7b878b3339776df9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/436281 Reviewed-by: Lasse Nielsen <lrn@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>
91 lines
2.0 KiB
Dart
91 lines
2.0 KiB
Dart
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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main() {
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var assertsEnabled = false;
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assert((assertsEnabled = true));
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if (!assertsEnabled) return;
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// TODO(rnystrom): Test cases where the first argument to assert() is a
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// function.
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testAssertFails();
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testAssertDoesNotFail();
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testNullMessage();
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testDoesNotEvaluateMessageIfAssertSucceeds();
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testMessageExpressionThatThrows();
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testCallsToStringOnMessageLazily();
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}
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/// A class with a custom toString() that tracks when it is called.
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class ToString {
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bool calledToString = false;
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String toString() {
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calledToString = true;
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return "toString!";
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}
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}
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testAssertFails() {
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try {
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assert(false, "Oops");
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Expect.fail("Assert should throw.");
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} catch (e) {
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Expect.isTrue(e.toString().contains("Oops"));
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}
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}
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testAssertDoesNotFail() {
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try {
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assert(true, "Oops");
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} catch (e) {
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Expect.fail("Assert should not throw.");
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}
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}
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testNullMessage() {
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try {
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assert(false, null);
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Expect.fail("Assert should throw.");
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} catch (e) {
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Expect.isTrue(e.toString().contains("is not true"));
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}
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}
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testDoesNotEvaluateMessageIfAssertSucceeds() {
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try {
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var evaluated = false;
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assert(true, evaluated = true);
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Expect.isFalse(evaluated);
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} catch (e) {
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Expect.fail("Assert should not throw.");
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}
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}
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testMessageExpressionThatThrows() {
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try {
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assert(false, throw "dang");
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Expect.fail("Should throw");
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} catch (e) {
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Expect.equals(e, "dang");
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}
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}
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testCallsToStringOnMessageLazily() {
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var toString = new ToString();
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try {
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assert(false, toString);
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Expect.fail("Assert should throw.");
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} catch (e) {
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Expect.isFalse(toString.calledToString);
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Expect.type<AssertionError>(e);
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e as AssertionError;
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Expect.identical(toString, e.message);
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Expect.isFalse(toString.calledToString);
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}
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}
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