v8/test/mjsunit/mjsunit-assertion-error.js
Camillo Bruni 34874b3b19 Reland "[mjsunit] Improve mjsunit stracktrace readability"
This is a reland of f720d024dc
Original change's description:
> [mjsunit] Improve mjsunit stracktrace readability
> 
> Format the function name and file-position into proper columns to easily spot
> where the test code ends and the mjsunit framework code starts.
> 
> BEFORE:
> Stack: Error
>     at new MjsUnitAssertionError (test/mjsunit/mjsunit.js:36:18)
>     at failWithMessage (test/mjsunit/mjsunit.js:310:11)
>     at fail (test/mjsunit/mjsunit.js:327:12)
>     at assertEquals (test/mjsunit/mjsunit.js:398:7)
>     at closure (test/mjsunit/regress/regress-4121.js:20:7)
>     at literals_sharing_test (test/mjsunit/regress/regress-4121.js:27:3)
>     at test (test/mjsunit/regress/regress-4121.js:37:5)
>     at eval (eval at <anonymous> (test/mjsunit/regress/regress-4121.js:49:6), <anonymous>:1:1)
>     at test/mjsunit/regress/regress-4121.js:49:6
>     at Array.forEach.call (test/mjsunit/regress/regress-4121.js:50:7)
>     throw new MjsUnitAssertionError(message);
> 
> AFTER:
> Stack: MjsUnitAssertionError
>     at assertEquals          test/mjsunit/mjsunit.js 398:7
>     at closure               test/mjsunit/regress/regress-4121.js 20:7
>     at literals_sharing_test test/mjsunit/regress/regress-4121.js 27:3
>     at test                  test/mjsunit/regress/regress-4121.js 37:5
>     at eval                  eval at <anonymous> (test/mjsunit/regress/regress-4121.js:49:6)
>     at                       test/mjsunit/regress/regress-4121.js 49:6
>     at Array.forEach.call    test/mjsunit/regress/regress-4121.js 50:7
>     throw new MjsUnitAssertionError(message);
> 
> 
> Change-Id: Iad3460a648e26effb43c00426ab043743ee6a138
> Reviewed-on: https://chromium-review.googlesource.com/563627
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Commit-Queue: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46589}

Change-Id: I44bf07f7be4114369315605542cafd17345b4397
Reviewed-on: https://chromium-review.googlesource.com/567063
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46602}
2017-07-12 19:01:21 +00:00

103 lines
2.2 KiB
JavaScript

// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
let fileName = 'mjsunit-assertion-error.js';
function addDefaultFrames(frameExpectations) {
// The last frame contains the error instantiation.
frameExpectations.unshift('assertTrue.*mjsunit.js');
// Frist frame is the top-level script.
frameExpectations.push(fileName);
}
function assertErrorMessage(frameExpectations, error) {
let stack = error.stack.split("\n");
let title = stack.shift();
assertContains('MjsUnitAssertionError', title);
addDefaultFrames(frameExpectations);
// Add default frames to the expectations.
assertEquals(frameExpectations.length, stack.length);
for (let i = 0; i < stack.length; i++) {
let frame = stack[i];
let expectation = frameExpectations[i];
assertTrue(frame.search(expectation) != -1,
`Frame ${i}: Did not find '${expectation}' in '${frame}'`);
}
}
// Toplevel
try {
assertTrue(false);
} catch(e) {
assertErrorMessage([], e);
}
// Single function.
function throwError() {
assertTrue(false);
}
try {
throwError();
assertUnreachable();
} catch(e) {
assertErrorMessage(['throwError'], e);
}
// Nested function.
function outer() {
throwError();
}
try {
outer();
assertUnreachable();
} catch(e) {
assertErrorMessage(['throwError', 'outer'], e);
}
// Test Array helper nesting
try {
[1].map(throwError);
assertUnreachable();
} catch(e) {
assertErrorMessage(['throwError', 'Array.map'], e);
}
try {
Array.prototype.map.call([1], throwError);
assertUnreachable();
} catch(e) {
assertErrorMessage(['throwError', 'Array.map'], e);
}
// Test eval
try {
eval("assertTrue(false);");
assertUnreachable();
} catch(e) {
assertErrorMessage(['eval'], e);
}
(function testNestedEval() {
try {
eval("assertTrue(false);");
assertUnreachable();
} catch(e) {
assertErrorMessage(['eval', 'testNestedEval'], e);
}
})();
(function testConstructor() {
class Failer {
constructor() {
assertTrue(false);
}
}
try {
new Failer();
assertUnreachable();
} catch(e) {
assertErrorMessage(['new Failer', 'testConstructor'], e);
}
})();