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4f2e372716
Export a new common.noop no-operation function for general use. Allow using common.mustCall() without a fn argument to simplify test cases. Replace various non-op functions throughout tests with common.noop PR-URL: https://github.com/nodejs/node/pull/12027 Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Teddy Katz <teddy.katz@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
90 lines
2.1 KiB
JavaScript
90 lines
2.1 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const cares = process.binding('cares_wrap');
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const dns = require('dns');
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// Stub `getaddrinfo` to *always* error.
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cares.getaddrinfo = () => process.binding('uv').UV_ENOENT;
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assert.throws(() => {
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dns.lookup(1, {});
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}, /^TypeError: Invalid arguments: hostname must be a string or falsey$/);
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assert.throws(() => {
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dns.lookup(false, 'cb');
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}, /^TypeError: Invalid arguments: callback must be passed$/);
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assert.throws(() => {
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dns.lookup(false, 'options', 'cb');
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}, /^TypeError: Invalid arguments: callback must be passed$/);
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assert.throws(() => {
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dns.lookup(false, {
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hints: 100,
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family: 0,
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all: false
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}, common.noop);
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}, /^TypeError: Invalid argument: hints must use valid flags$/);
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assert.throws(() => {
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dns.lookup(false, {
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hints: 0,
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family: 20,
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all: false
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}, common.noop);
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}, /^TypeError: Invalid argument: family must be 4 or 6$/);
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assert.doesNotThrow(() => {
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dns.lookup(false, {
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hints: 0,
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family: 0,
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all: true
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}, common.mustCall((error, result, addressType) => {
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assert.ifError(error);
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assert.deepStrictEqual(result, []);
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assert.strictEqual(addressType, undefined);
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}));
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});
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assert.doesNotThrow(() => {
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dns.lookup('127.0.0.1', {
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hints: 0,
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family: 4,
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all: true
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}, common.mustCall((error, result, addressType) => {
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assert.ifError(error);
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assert.deepStrictEqual(result, [{
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address: '127.0.0.1',
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family: 4
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}]);
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assert.strictEqual(addressType, undefined);
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}));
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});
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assert.doesNotThrow(() => {
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dns.lookup('127.0.0.1', {
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hints: 0,
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family: 4,
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all: false
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}, common.mustCall((error, result, addressType) => {
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assert.ifError(error);
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assert.deepStrictEqual(result, '127.0.0.1');
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assert.strictEqual(addressType, 4);
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}));
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});
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assert.doesNotThrow(() => {
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let tickValue = 0;
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dns.lookup('example.com', common.mustCall((error, result, addressType) => {
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assert(error);
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assert.strictEqual(tickValue, 1);
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assert.strictEqual(error.code, 'ENOENT');
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}));
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// Make sure that the error callback is called
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// on next tick.
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tickValue = 1;
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});
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