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'use strict'; |
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import { assert } from 'chai'; |
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import Input from '../../src/Lexer/Input'; |
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import pkg from '../../package.json'; |
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/** @test {Input} */ |
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describe(`${pkg.name}/Lexer/Input`, () => { |
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/** @test {Input#constructor} */ |
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describe('#constructor', () => { |
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it('Create a new instance of type Input', () => { |
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assert.instanceOf(new Input(''), Input); |
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}); |
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}); |
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/** @test {Input#eof} */ |
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describe('#eof', () => { |
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it('Determine whether or not there are no more values in the stream.', () => { |
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const stream = new Input(''); |
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assert.isTrue(stream.eof()); |
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}); |
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}); |
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/** @test {Input#error} */ |
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describe('#error', () => { |
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it('Throw a new Error.', () => { |
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const stream = new Input(''); |
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assert.throws(() => { |
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stream.error('Parse error'); |
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}, Error, 'Parse error (Line: 1, Column: 0)'); |
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}); |
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}); |
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/** @test {Input#next} */ |
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describe('#next', () => { |
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it('Return the next value from the stream.', () => { |
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const stream = new Input('> hello botlang'); |
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assert.strictEqual(stream.next(), ' '); |
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assert.strictEqual(stream.next(), 'h'); |
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assert.strictEqual(stream.next(), 'e'); |
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assert.strictEqual(stream.next(), 'l'); |
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assert.strictEqual(stream.next(), 'l'); |
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assert.strictEqual(stream.next(), 'o'); |
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assert.strictEqual(stream.next(), ' '); |
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assert.strictEqual(stream.next(), 'b'); |
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assert.strictEqual(stream.next(), 'o'); |
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assert.strictEqual(stream.next(), 't'); |
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assert.strictEqual(stream.next(), 'l'); |
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assert.strictEqual(stream.next(), 'a'); |
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assert.strictEqual(stream.next(), 'n'); |
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assert.strictEqual(stream.next(), 'g'); |
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}); |
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}); |
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/** @test {Input#peek} */ |
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describe('#peek', () => { |
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it('Return the value from the current position.', () => { |
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const stream = new Input('> hello botlang'); |
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assert.strictEqual(stream.peek(), '>'); |
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}); |
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}); |
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}); |
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botlang /
botlang-js
