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nodejs/test/addons/stringbytes-external-exceed-max/test-stringbytes-external-exceed-max.js
Jeremiah Senkpiel 52bae222a3 test: abstract skip functionality to common
The tap skipping output is so prevalent yet obscure in nature that we
ought to move it into it's own function in test/common.js

PR-URL: https://github.com/nodejs/node/pull/6697
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
2016-05-12 16:43:35 -04:00

35 lines
974 B
JavaScript

'use strict';
const common = require('../../common');
const binding = require('./build/Release/binding');
const assert = require('assert');
const skipMessage = 'intensive toString tests due to memory confinements';
if (!common.enoughTestMem) {
common.skip(skipMessage);
return;
}
// v8 fails silently if string length > v8::String::kMaxLength
// v8::String::kMaxLength defined in v8.h
const kStringMaxLength = process.binding('buffer').kStringMaxLength;
try {
var buf = Buffer.allocUnsafe(kStringMaxLength * 2 + 2);
} catch (e) {
// If the exception is not due to memory confinement then rethrow it.
if (e.message !== 'Array buffer allocation failed') throw (e);
common.skip(skipMessage);
return;
}
// Ensure we have enough memory available for future allocations to succeed.
if (!binding.ensureAllocation(2 * kStringMaxLength)) {
common.skip(skipMessage);
return;
}
assert.throws(function() {
buf.toString('utf16le');
}, /"toString\(\)" failed/);