60 lines
1.8 KiB
JavaScript
60 lines
1.8 KiB
JavaScript
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'use strict';
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const assert = require('assert');
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const ref = require('../');
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describe('ref(), deref()', function() {
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beforeEach(gc);
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it('should work 1 layer deep', function() {
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const test = Buffer.from('one layer deep');
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const one = ref.ref(test);
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const _test = ref.deref(one);
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assert.strictEqual(test.length, _test.length);
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assert.strictEqual(test.toString(), _test.toString());
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});
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it('should work 2 layers deep', function() {
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const test = Buffer.from('two layers deep');
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const one = ref.ref(test);
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const two = ref.ref(one);
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const _one = ref.deref(two);
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const _test = ref.deref(_one);
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assert.strictEqual(ref.address(one), ref.address(_one));
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assert.strictEqual(ref.address(test), ref.address(_test));
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assert.strictEqual(one.length, _one.length);
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assert.strictEqual(test.length, _test.length);
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assert.strictEqual(test.toString(), _test.toString());
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});
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it('should throw when derefing a Buffer with no "type"', function() {
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const test = Buffer.from('???');
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assert.throws(() => {
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ref.deref(test);
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}, /unknown "type"/);
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});
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it('should throw when derefing a Buffer with no "type" 2', function() {
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const test = Buffer.from('???');
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const r = ref.ref(test);
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const _test = ref.deref(r);
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assert.strictEqual(ref.address(test), ref.address(_test));
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assert.throws(() => {
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ref.deref(_test)
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}, /unknown "type"/);
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})
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it('should deref() a "char" type properly', function() {
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const test = Buffer.alloc(ref.sizeof.char);
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test.type = ref.types.char;
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test[0] = 50;
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assert.strictEqual(50, ref.deref(test));
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test[0] = 127;
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assert.strictEqual(127, ref.deref(test));
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});
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it('should not throw when calling ref()/deref() on a `void` type', function() {
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const test = ref.alloc(ref.types.void);
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assert.strictEqual(null, test.deref());
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});
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});
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