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753b68f9d8
V8 6.2 will support a larger maximum string length on 64-bit platforms.
Update the test to take into account its odd value ((1 << 30) - 1 - 24).
Refs: e8c9649e25
PR-URL: https://github.com/nodejs/node/pull/14476
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
30 lines
987 B
JavaScript
30 lines
987 B
JavaScript
'use strict';
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const common = require('../../common');
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const skipMessage = 'intensive toString tests due to memory confinements';
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if (!common.enoughTestMem)
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common.skip(skipMessage);
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const binding = require(`./build/${common.buildType}/binding`);
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const assert = require('assert');
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// v8 fails silently if string length > v8::String::kMaxLength
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// v8::String::kMaxLength defined in v8.h
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const kStringMaxLength = process.binding('buffer').kStringMaxLength;
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let buf;
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try {
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buf = Buffer.allocUnsafe(kStringMaxLength + 2);
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} catch (e) {
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// If the exception is not due to memory confinement then rethrow it.
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if (e.message !== 'Array buffer allocation failed') throw (e);
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common.skip(skipMessage);
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}
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// Ensure we have enough memory available for future allocations to succeed.
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if (!binding.ensureAllocation(2 * kStringMaxLength))
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common.skip(skipMessage);
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const maxString = buf.toString('utf16le');
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assert.strictEqual(maxString.length, Math.floor((kStringMaxLength + 2) / 2));
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