/* global describe, it */

const oxigraph = require('../pkg/oxigraph.js')
const assert = require('assert')
require('../node_modules/@rdfjs/data-model/test/index.js')(oxigraph)

describe('DataModel', function () {
  describe('#toString()', function () {
    it('namedNode().toString() should return SPARQL compatible syntax', function () {
      assert.strictEqual('<http://example.com>', oxigraph.namedNode('http://example.com').toString())
    })

    it('blankNode().toString() should return SPARQL compatible syntax', function () {
      assert.strictEqual('_:a', oxigraph.blankNode('a').toString())
    })

    it('literal().toString() should return SPARQL compatible syntax', function () {
      assert.strictEqual('"a\\"b"@en', oxigraph.literal('a"b', 'en').toString())
    })

    it('defaultGraph().toString() should return SPARQL compatible syntax', function () {
      assert.strictEqual('DEFAULT', oxigraph.defaultGraph().toString())
    })

    it('variable().toString() should return SPARQL compatible syntax', function () {
      assert.strictEqual('?a', oxigraph.variable('a').toString())
    })

    it('quad().toString() should return SPARQL compatible syntax', function () {
      assert.strictEqual(
        '<http://example.com/s> <http://example.com/p> <<<http://example.com/s1> <http://example.com/p1> <http://example.com/o1>>> <http://example.com/g>',
        oxigraph.quad(oxigraph.namedNode('http://example.com/s'), oxigraph.namedNode('http://example.com/p'), oxigraph.quad(oxigraph.namedNode('http://example.com/s1'), oxigraph.namedNode('http://example.com/p1'), oxigraph.namedNode('http://example.com/o1')), oxigraph.namedNode('http://example.com/g')).toString()
      )
    })
  })
})