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7d453ff212
Remove instances where `--expose-internals` is used to gain access to buffer.kStringMaxLength. The property is availalble without a flag. It is undocumented but the same as the documented `buffer.constants.MAX_STRING_LENGTH` so use that. (We even have a test that confirms that they are the same value.) PR-URL: https://github.com/nodejs/node/pull/25309 Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com>
30 lines
963 B
JavaScript
30 lines
963 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 = require('buffer').constants.MAX_STRING_LENGTH;
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let buf;
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try {
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buf = Buffer.allocUnsafe(kStringMaxLength);
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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('latin1');
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assert.strictEqual(maxString.length, kStringMaxLength);
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