196 lines
6.5 KiB
JavaScript
196 lines
6.5 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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var assert = require('assert');
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var util = require('../../');
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// test the internal isDate implementation
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var Date2 = require('vm').runInNewContext('Date');
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var d = new Date2();
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var orig = util.inspect(d);
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Date2.prototype.foo = 'bar';
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var after = util.inspect(d);
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assert.equal(orig, after);
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// test for sparse array
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var a = ['foo', 'bar', 'baz'];
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assert.equal(util.inspect(a), '[ \'foo\', \'bar\', \'baz\' ]');
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delete a[1];
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assert.equal(util.inspect(a), '[ \'foo\', , \'baz\' ]');
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assert.equal(util.inspect(a, true), '[ \'foo\', , \'baz\', [length]: 3 ]');
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assert.equal(util.inspect(new Array(5)), '[ , , , , ]');
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// test for property descriptors
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var getter = Object.create(null, {
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a: {
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get: function() { return 'aaa'; }
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}
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});
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var setter = Object.create(null, {
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b: {
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set: function() {}
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}
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});
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var getterAndSetter = Object.create(null, {
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c: {
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get: function() { return 'ccc'; },
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set: function() {}
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}
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});
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assert.equal(util.inspect(getter, true), '{ [a]: [Getter] }');
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assert.equal(util.inspect(setter, true), '{ [b]: [Setter] }');
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assert.equal(util.inspect(getterAndSetter, true), '{ [c]: [Getter/Setter] }');
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// exceptions should print the error message, not '{}'
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assert.equal(util.inspect(new Error()), '[Error]');
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assert.equal(util.inspect(new Error('FAIL')), '[Error: FAIL]');
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assert.equal(util.inspect(new TypeError('FAIL')), '[TypeError: FAIL]');
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assert.equal(util.inspect(new SyntaxError('FAIL')), '[SyntaxError: FAIL]');
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try {
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undef();
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} catch (e) {
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assert.equal(util.inspect(e), '[ReferenceError: undef is not defined]');
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}
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var ex = util.inspect(new Error('FAIL'), true);
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assert.ok(ex.indexOf('[Error: FAIL]') != -1);
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assert.ok(ex.indexOf('[stack]') != -1);
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assert.ok(ex.indexOf('[message]') != -1);
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// GH-1941
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// should not throw:
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assert.equal(util.inspect(Object.create(Date.prototype)), '{}');
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// GH-1944
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assert.doesNotThrow(function() {
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var d = new Date();
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d.toUTCString = null;
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util.inspect(d);
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});
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assert.doesNotThrow(function() {
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var r = /regexp/;
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r.toString = null;
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util.inspect(r);
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});
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// bug with user-supplied inspect function returns non-string
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assert.doesNotThrow(function() {
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util.inspect([{
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inspect: function() { return 123; }
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}]);
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});
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// GH-2225
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var x = { inspect: util.inspect };
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assert.ok(util.inspect(x).indexOf('inspect') != -1);
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// util.inspect.styles and util.inspect.colors
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function test_color_style(style, input, implicit) {
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var color_name = util.inspect.styles[style];
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var color = ['', ''];
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if(util.inspect.colors[color_name])
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color = util.inspect.colors[color_name];
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var without_color = util.inspect(input, false, 0, false);
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var with_color = util.inspect(input, false, 0, true);
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var expect = '\u001b[' + color[0] + 'm' + without_color +
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'\u001b[' + color[1] + 'm';
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assert.equal(with_color, expect, 'util.inspect color for style '+style);
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}
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test_color_style('special', function(){});
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test_color_style('number', 123.456);
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test_color_style('boolean', true);
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test_color_style('undefined', undefined);
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test_color_style('null', null);
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test_color_style('string', 'test string');
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test_color_style('date', new Date);
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test_color_style('regexp', /regexp/);
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// an object with "hasOwnProperty" overwritten should not throw
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assert.doesNotThrow(function() {
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util.inspect({
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hasOwnProperty: null
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});
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});
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// new API, accepts an "options" object
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var subject = { foo: 'bar', hello: 31, a: { b: { c: { d: 0 } } } };
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Object.defineProperty(subject, 'hidden', { enumerable: false, value: null });
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assert(util.inspect(subject, { showHidden: false }).indexOf('hidden') === -1);
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assert(util.inspect(subject, { showHidden: true }).indexOf('hidden') !== -1);
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assert(util.inspect(subject, { colors: false }).indexOf('\u001b[32m') === -1);
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assert(util.inspect(subject, { colors: true }).indexOf('\u001b[32m') !== -1);
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assert(util.inspect(subject, { depth: 2 }).indexOf('c: [Object]') !== -1);
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assert(util.inspect(subject, { depth: 0 }).indexOf('a: [Object]') !== -1);
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assert(util.inspect(subject, { depth: null }).indexOf('{ d: 0 }') !== -1);
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// "customInspect" option can enable/disable calling inspect() on objects
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subject = { inspect: function() { return 123; } };
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assert(util.inspect(subject, { customInspect: true }).indexOf('123') !== -1);
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assert(util.inspect(subject, { customInspect: true }).indexOf('inspect') === -1);
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assert(util.inspect(subject, { customInspect: false }).indexOf('123') === -1);
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assert(util.inspect(subject, { customInspect: false }).indexOf('inspect') !== -1);
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// custom inspect() functions should be able to return other Objects
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subject.inspect = function() { return { foo: 'bar' }; };
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assert.equal(util.inspect(subject), '{ foo: \'bar\' }');
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subject.inspect = function(depth, opts) {
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assert.strictEqual(opts.customInspectOptions, true);
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};
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util.inspect(subject, { customInspectOptions: true });
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// util.inspect with "colors" option should produce as many lines as without it
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function test_lines(input) {
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var count_lines = function(str) {
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return (str.match(/\n/g) || []).length;
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}
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var without_color = util.inspect(input);
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var with_color = util.inspect(input, {colors: true});
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assert.equal(count_lines(without_color), count_lines(with_color));
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}
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test_lines([1, 2, 3, 4, 5, 6, 7]);
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test_lines(function() {
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var big_array = [];
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for (var i = 0; i < 100; i++) {
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big_array.push(i);
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}
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return big_array;
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}());
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test_lines({foo: 'bar', baz: 35, b: {a: 35}});
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test_lines({
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foo: 'bar',
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baz: 35,
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b: {a: 35},
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very_long_key: 'very_long_value',
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even_longer_key: ['with even longer value in array']
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});
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