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import { parseDocument, Scalar } from 'yaml'import { source } from './_utils'
describe('%TAG', () => {  test('parse', () => {    const doc = parseDocument(source`      %TAG ! !foo:      %TAG !bar! !bar:      ---      - !bar v1      - !bar!foo v2    `)    expect(doc.errors).toHaveLength(0)    expect(doc.directives.tags).toMatchObject({      '!!': 'tag:yaml.org,2002:',      '!': '!foo:',      '!bar!': '!bar:'    })    expect(doc.contents).toMatchObject({      items: [        { value: 'v1', tag: '!foo:bar' },        { value: 'v2', tag: '!bar:foo' }      ]    })  })
  test('create & stringify', () => {    const doc = parseDocument('[ v1, v2 ]\n')    ;(doc.get(0, true) as Scalar).tag = '!foo:foo'    ;(doc.get(1, true) as Scalar).tag = '!bar:bar'    doc.directives.tags['!'] = '!foo:'    doc.directives.tags['!bar!'] = '!bar:'    expect(String(doc)).toBe(source`      %TAG ! !foo:      %TAG !bar! !bar:      ---      [ !foo v1, !bar!bar v2 ]    `)  })})
describe('broken directives', () => {  for (const tag of ['%TAG', '%YAML'])    test(`incomplete ${tag} directive`, () => {      const doc = parseDocument(`${tag}\n---\n`)      expect(doc.errors).toMatchObject([{ pos: [0, tag.length] }])    })
  test('missing separator at end of stream', () => {    const doc = parseDocument(`%YAML 1.2\n`)    expect(doc.errors).toMatchObject([{ pos: [10, 11] }])  })
  test('missing separator before doc contents', () => {    const doc = parseDocument(`%YAML 1.2\nfoo\n`)    expect(doc.errors).toMatchObject([{ pos: [10, 11] }])  })
  test('lone %', () => {    const doc = parseDocument(`%`)    expect(doc).toMatchObject({      errors: [{ code: 'MISSING_CHAR', pos: [1, 2] }],      warnings: [{ code: 'BAD_DIRECTIVE', pos: [0, 1] }]    })  })})