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54 lines
2.0 KiB
54 lines
2.0 KiB
// Flags: --no-warnings
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// The flag suppresses stderr output but the warning event will still emit
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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 util = require('util');
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process.on('warning', common.mustCall((warning) => {
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assert(warning);
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assert(/^(Warning|CustomWarning)/.test(warning.name));
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assert.strictEqual(warning.message, 'A Warning');
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if (warning.code) assert.strictEqual(warning.code, 'CODE001');
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}, 8));
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process.emitWarning('A Warning');
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process.emitWarning('A Warning', 'CustomWarning');
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process.emitWarning('A Warning', CustomWarning);
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process.emitWarning('A Warning', 'CustomWarning', CustomWarning);
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process.emitWarning('A Warning', 'CustomWarning', 'CODE001');
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function CustomWarning() {
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Error.call(this);
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this.name = 'CustomWarning';
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this.message = 'A Warning';
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this.code = 'CODE001';
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Error.captureStackTrace(this, CustomWarning);
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}
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util.inherits(CustomWarning, Error);
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process.emitWarning(new CustomWarning());
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const warningNoToString = new CustomWarning();
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warningNoToString.toString = null;
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process.emitWarning(warningNoToString);
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const warningThrowToString = new CustomWarning();
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warningThrowToString.toString = function() {
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throw new Error('invalid toString');
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};
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process.emitWarning(warningThrowToString);
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// TypeError is thrown on invalid input
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assert.throws(() => process.emitWarning(1), TypeError);
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assert.throws(() => process.emitWarning({}), TypeError);
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assert.throws(() => process.emitWarning(true), TypeError);
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assert.throws(() => process.emitWarning([]), TypeError);
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assert.throws(() => process.emitWarning('', {}), TypeError);
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assert.throws(() => process.emitWarning('', '', {}), TypeError);
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assert.throws(() => process.emitWarning('', 1), TypeError);
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assert.throws(() => process.emitWarning('', '', 1), TypeError);
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assert.throws(() => process.emitWarning('', true), TypeError);
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assert.throws(() => process.emitWarning('', '', true), TypeError);
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assert.throws(() => process.emitWarning('', []), TypeError);
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assert.throws(() => process.emitWarning('', '', []), TypeError);
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