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37 lines
1.3 KiB
JavaScript
37 lines
1.3 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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'use strict';
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var evalToString = require('../evalToString');
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var babylon = require('babylon');
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var parse = (source) => babylon.parse(
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`(${source});`
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).program.body[0].expression; // quick way to get an exp node
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var parseAndEval = (source) => evalToString(parse(source));
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describe('evalToString', () => {
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it('should support StringLiteral', () => {
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expect(parseAndEval(`'foobar'`)).toBe('foobar');
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expect(parseAndEval(`'yowassup'`)).toBe('yowassup');
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});
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it('should support string concat (`+`)', () => {
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expect(parseAndEval(`'foo ' + 'bar'`)).toBe('foo bar');
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});
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it('should throw when it finds other types', () => {
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expect(() => parseAndEval(`'foo ' + true`)).toThrowError(/Unsupported type/);
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expect(() => parseAndEval(`'foo ' + 3`)).toThrowError(/Unsupported type/);
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expect(() => parseAndEval(`'foo ' + null`)).toThrowError(/Unsupported type/);
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expect(() => parseAndEval(`'foo ' + undefined`)).toThrowError(/Unsupported type/);
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});
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});
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