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102 lines
3.1 KiB
102 lines
3.1 KiB
// 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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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const Stream = require('stream');
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const Console = require('console').Console;
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const out = new Stream();
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const err = new Stream();
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// ensure the Console instance doesn't write to the
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// process' "stdout" or "stderr" streams
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process.stdout.write = process.stderr.write = common.mustNotCall();
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// make sure that the "Console" function exists
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assert.strictEqual('function', typeof Console);
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// make sure that the Console constructor throws
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// when not given a writable stream instance
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assert.throws(
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() => { new Console(); },
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common.expectsError({
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code: 'ERR_CONSOLE_WRITABLE_STREAM',
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type: TypeError,
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message: /stdout/
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})
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);
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// Console constructor should throw if stderr exists but is not writable
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assert.throws(
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() => {
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out.write = common.noop;
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err.write = undefined;
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new Console(out, err);
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},
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common.expectsError({
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code: 'ERR_CONSOLE_WRITABLE_STREAM',
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type: TypeError,
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message: /stderr/
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})
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);
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out.write = err.write = (d) => {};
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const c = new Console(out, err);
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out.write = err.write = common.mustCall((d) => {
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assert.strictEqual(d, 'test\n');
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}, 2);
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c.log('test');
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c.error('test');
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out.write = common.mustCall((d) => {
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assert.strictEqual('{ foo: 1 }\n', d);
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});
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c.dir({ foo: 1 });
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// ensure that the console functions are bound to the console instance
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let called = 0;
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out.write = common.mustCall((d) => {
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called++;
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assert.strictEqual(d, `${called} ${called - 1} [ 1, 2, 3 ]\n`);
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}, 3);
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[1, 2, 3].forEach(c.log);
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// Console() detects if it is called without `new` keyword
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assert.doesNotThrow(() => {
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Console(out, err);
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});
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// Instance that does not ignore the stream errors.
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const c2 = new Console(out, err, false);
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out.write = () => { throw new Error('out'); };
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err.write = () => { throw new Error('err'); };
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assert.throws(() => c2.log('foo'), /^Error: out$/);
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assert.throws(() => c2.warn('foo'), /^Error: err$/);
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assert.throws(() => c2.dir('foo'), /^Error: out$/);
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