sexp-template/test/parser.js

const test = require('tape')

const Lexer = require('../src/lexer')
const AST = require('../src/ast/index')
const Parser = require('../src/parser')
const tt = require('../src/tokenTypes')

test('parses token stream into a tree', t => {
  t.plan(1)
  const lexer = new Lexer()
  let tokenStream = lexer.scan(`
    (div :class "foobar"
      (p :class (cond #t "primary" "secondary")))
  `)
  let parser = new Parser(tokenStream)
  let tree = parser.parse()

  t.deepEqual(tree, [
    new AST.Application({
      functionName: new AST.Identifier({ name: 'div' }),
      args: [
        new AST.Attribute({
          name: 'class',
          value: new AST.String({ value: 'foobar' })
        }),
        new AST.Application({
          functionName: new AST.Identifier({ name: 'p' }),
          args: [
            new AST.Attribute({
              name: 'class',
              value: new AST.Application({
                functionName: new AST.Identifier({ name: 'cond' }),
                args: [
                  new AST.Boolean({ value: true }),
                  new AST.String({ value: 'primary' }),
                  new AST.String({ value: 'secondary' }),
                ]
              })
            })
          ]
        })
      ]
    })
  ])
})