test/addons/non-node-context/test-make-buffer.js


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'use strict';

const common = require('../../common');
const assert = require('assert');
const {
  makeBufferInNewContext,
} = require(`./build/${common.buildType}/binding`);

// Because the `Buffer` function and its protoype property only (currently)
// exist in a Node.js instance’s main context, trying to create buffers from
// another context throws an exception.
assert.throws(
  () => makeBufferInNewContext(),
  (exception) => {
    assert.strictEqual(exception.constructor.name, 'Error');
    assert(!(exception.constructor instanceof Error));

    assert.strictEqual(exception.code, 'ERR_BUFFER_CONTEXT_NOT_AVAILABLE');
    assert.strictEqual(exception.message,
                       'Buffer is not available for the current Context');
    return true;
  },
);