55 lines
1.5 KiB
JavaScript
55 lines
1.5 KiB
JavaScript
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var filename = process.argv[2] || './format.js'
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, format = require(filename)
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, printf = format.printf
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;
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function desc(x, indentLevel) {
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indentLevel = indentLevel || 0;
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var indent = new Array(indentLevel).join(' ');
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if (typeof x == 'string' || (x && x.__proto__ == String.prototype)) {
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return indent + '"' + x + '"';
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}
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else if (Array.isArray(x)) {
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return indent + '[ ' + x.map(desc).join(', ') + ' ]';
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}
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else {
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return '' + x;
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}
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}
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function assertFormat(args, expected) {
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var fmt = args[0];
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var result = format.format.apply(format, args);
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if (result !== expected) {
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console.log('FORMAT: "' + fmt + '"');
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console.log('ARGS: ' + desc(args.slice(1)));
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console.log('RESULT: "' + result + '"');
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throw new Error('assertion failed, ' + result + ' !== ' + expected);
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}
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}
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console.log('Testing format:');
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var tests = [
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[['hello'], 'hello'],
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[['hello %s', 'sami'], 'hello sami'],
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[
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['b: %b\nc: %c\nd: %d\nf: %f\no: %o\ns: %s\nx: %x\nX: %X', 42, 65, 42*42, 42*42*42/1000000000, 255, 'sami', 0xfeedface, 0xc0ffee],
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"b: 101010\nc: A\nd: 1764\nf: 0.000074\no: 0377\ns: sami\nx: 0xfeedface\nX: 0xC0FFEE"
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],
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[['%.2f', 3.14159], '3.14'],
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[['%0.2f', 3.14159], '3.14'],
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[['%.2f', 0.1234], '.12'],
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[['%0.2f', 0.1234], '0.12'],
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[['foo %j', 42], 'foo 42'],
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[['foo %j', '42'], 'foo "42"']
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];
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tests.forEach(function(spec) {
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var args = spec[0];
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var expected = spec[1];
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assertFormat(args, expected);
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console.log('pass (format ' + args[0] + ' == ' + expected + ')');
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});
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console.log('all passed');
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