vue/test/unit/specs/text-parser.js

var TextParser = require('seed/src/text-parser'),
    config = require('seed/src/config')

describe('UNIT: TextNode Parser', function () {

    describe('.parse()', function () {
        
        it('should return null if no interpolate tags are present', function () {
            var result = TextParser.parse('hello no tags')
            assert.strictEqual(result, null)
        })

        it('should ignore escapped tags', function () {
            var result = TextParser.parse('test {{key}} {{hello}}')
            assert.strictEqual(result.length, 3)
            assert.strictEqual(result[2], ' {{hello}}')
        })

        var tokens = TextParser.parse('hello {{a}}! {{ bcd }}{{d.e.f}} {{a + (b || c) ? d : e}}')
        
        it('should extract correct amount of tokens', function () {
            assert.strictEqual(tokens.length, 7)
        })

        it('should extract plain strings', function () {
            assert.strictEqual(typeof tokens[0], 'string')
            assert.strictEqual(typeof tokens[2], 'string')
            assert.strictEqual(typeof tokens[5], 'string')
        })

        it('should extract basic keys', function () {
            assert.strictEqual(tokens[1].key, 'a')
        })

        it('should trim extracted keys', function () {
            assert.strictEqual(tokens[3].key, 'bcd')
        })

        it('should extract nested keys', function () {
            assert.strictEqual(tokens[4].key, 'd.e.f')
        })

        it('should extract expressions', function () {
            assert.strictEqual(tokens[6].key, 'a + (b || c) ? d : e')
        })

    })

    describe('.buildRegex()', function () {

        before(function () {
            config.interpolateTags = {
                open: '<%',
                close: '%>'
            }
            TextParser.buildRegex()
        })
        
        it('should update the interpolate tags and work', function () {
            var tokens = TextParser.parse('hello <%a%>! <% bcd %><%d.e.f%> <%a + (b || c) ? d : e%>')
            assert.strictEqual(tokens.length, 7)
            assert.strictEqual(typeof tokens[0], 'string')
            assert.strictEqual(typeof tokens[2], 'string')
            assert.strictEqual(typeof tokens[5], 'string')
            assert.strictEqual(tokens[1].key, 'a')
            assert.strictEqual(tokens[3].key, 'bcd')
            assert.strictEqual(tokens[4].key, 'd.e.f')
            assert.strictEqual(tokens[6].key, 'a + (b || c) ? d : e')
        })

        after(function () {
            config.interpolateTags = {
                open: '{{',
                close: '}}'
            }
            TextParser.buildRegex()
        })

    })

})