mermaid/src/mermaidAPI.spec.js

/* eslint-env jasmine */
import mermaidAPI from './mermaidAPI'

describe('when using mermaidAPI and ', function () {
  describe('doing initialize ', function () {
    beforeEach(function () {
      delete global.mermaid_config
      document.body.innerHTML = ''
    })

    it('should copy a literal into the configuration', function () {
      var orgConfig = mermaidAPI.getConfig()
      expect(orgConfig.testLiteral).toBe(undefined)

      mermaidAPI.initialize({ 'testLiteral': true })
      var config = mermaidAPI.getConfig()

      expect(config.testLiteral).toBe(true)
    })
    it('should copy a an object into the configuration', function () {
      var orgConfig = mermaidAPI.getConfig()
      expect(orgConfig.testObject).toBe(undefined)

      var object = {
        test1: 1,
        test2: false
      }

      mermaidAPI.initialize({ 'testObject': object })
      mermaidAPI.initialize({ 'testObject': { 'test3': true } })
      var config = mermaidAPI.getConfig()

      expect(config.testObject.test1).toBe(1)
      expect(config.testObject.test2).toBe(false)
      expect(config.testObject.test3).toBe(true)
    })
  })
  describe('checking validity of input ', function () {
    it('it should throw for an invalid definiton', function () {
      expect(() => mermaidAPI.parse('this is not a mermaid diagram definition')).toThrow()
    })
    it('it should not throw for a valid definiton', function () {
      expect(() => mermaidAPI.parse('graph TD;A--x|text including URL space|B;')).not.toThrow()
    })
  })
})