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Both are simple utility functions defined by the WHATWG console spec (https://console.spec.whatwg.org/). PR-URL: https://github.com/nodejs/node/pull/12678 Ref: https://github.com/nodejs/node/issues/12675 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com> Reviewed-By: Timothy Gu <timothygu99@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de>
64 lines
1.4 KiB
JavaScript
64 lines
1.4 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const stdoutWrite = process.stdout.write;
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let buf = '';
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process.stdout.write = (string) => buf = string;
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console.count();
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assert.strictEqual(buf, 'default: 1\n');
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// 'default' and undefined are equivalent
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console.count('default');
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assert.strictEqual(buf, 'default: 2\n');
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console.count('a');
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assert.strictEqual(buf, 'a: 1\n');
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console.count('b');
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assert.strictEqual(buf, 'b: 1\n');
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console.count('a');
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assert.strictEqual(buf, 'a: 2\n');
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console.count();
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assert.strictEqual(buf, 'default: 3\n');
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console.count({});
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assert.strictEqual(buf, '[object Object]: 1\n');
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console.count(1);
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assert.strictEqual(buf, '1: 1\n');
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console.count(null);
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assert.strictEqual(buf, 'null: 1\n');
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console.count('null');
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assert.strictEqual(buf, 'null: 2\n');
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console.countReset();
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console.count();
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assert.strictEqual(buf, 'default: 1\n');
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console.countReset('a');
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console.count('a');
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assert.strictEqual(buf, 'a: 1\n');
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// countReset('a') only reset the a counter
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console.count();
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assert.strictEqual(buf, 'default: 2\n');
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process.stdout.write = stdoutWrite;
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// Symbol labels do not work
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assert.throws(
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() => console.count(Symbol('test')),
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/^TypeError: Cannot convert a Symbol value to a string$/);
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assert.throws(
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() => console.countReset(Symbol('test')),
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/^TypeError: Cannot convert a Symbol value to a string$/);
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