You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: errors_test.rb
    path of file: ./repos/json_schemer/test
    
    the code of the file until where you have to start completion: require 'test_helper'

class ErrorsTest < Minitest::Test
  def test_x_error
    schema = {
      'oneOf' => [
        {
          'x-error' => 'properties a and b were provided, however only one or the other may be specified',
          'required' => ['a'],
          'not' => { 'required' => ['b'] }
        },
        {
          'x-error' => {
            'not' => '%{instance} `%{instanceLocation}` %{keywordLocation} %{absoluteKeywordLocation}'
          },
          'required' => ['b'],
          'not' => { 'required' => ['a'] }
        }
      ],
      'x-error' => {
        '*' => 'schema error',
        'oneOf' => 'oneOf error'
      }
    }
    data = {
      'a' => 'foo',
      'b' => 'bar'
    }
    assert_equal(
      [
        'properties a and b were provided, however only one or the other may be specified',
        '{"a"=>"foo", "b"=>"bar"} `` /oneOf/1/not json-schemer://schema#/oneOf/1/not'
      ].sort,
      JSONSchemer.schema(schema).validate(data).map { |error| error.fetch('error') }.sort
    )

    assert_equal('schema error', JSONSchemer.schema(schema).validate(data, :output_format => 'basic').fetch('error'))
    assert_equal('oneOf error', JSONSchemer.schema(schema).validate(data, :output_format => 'detailed').fetch('error'))

    assert_equal(true, JSONSchemer.schema(schema).validate(data, :output_format => 'basic').fetch('x-error'))
    assert_equal(true, JSONSchemer.schema(schema).validate(data, :output_format => 'detailed').fetch('x-error'))
    assert_equal([true, true], JSONSchemer.schema(schema).validate(data).map { |error| error.fetch('x-error') })

    refute(JSONSchemer.schema(schema).validate(data, :output_format => 'basic').key?('i18n'))
    refute(JSONSchemer.schema(schema).validate(data, :output_format => 'detailed').key?('i18n'))
    assert_equal([false, false], JSONSchemer.schema(schema).validate(data).map { |error| error.key?('i18n') })
  end

  def test_x_error_override
    schema = {
      'required' => ['a'],
      'minProperties' => 2
    }
    assert_equal(
      ['object at root is missing required properties: a', 'object size at root is less than: 2'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )

    schema.merge!('x-error' => 'schema error')
    assert_equal(
      ['schema error', 'schema error'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )
    assert_equal(
      'schema error',
      JSONSchemer.schema(schema).validate({}, :output_format => 'basic').fetch('error')
    )

    schema.merge!('x-error' => { 'required' => 'required error' })
    assert_equal(
      ['required error', 'object size at root is less than: 2'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )

    schema.merge!('x-error' => { 'required' => 'required error', 'minProperties' => 'minProperties error' })
    assert_equal(
      ['required error', 'minProperties error'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )

    schema.merge!('x-error' => { '*' => 'catchall', 'minProperties' => 'minProperties error' })
    assert_equal(
      ['catchall', 'minProperties error'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )
    assert_equal(
      'catchall',
      JSONSchemer.schema(schema).validate({}, :output_format => 'basic').fetch('error')
    )

    schema.merge!('x-error' => { '^' => 'schema error', 'minProperties' => 'minProperties error' })
    assert_equal(
      ['object at root is missing required properties: a', 'minProperties error'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )
    assert_equal(
      'schema error',
      JSONSchemer.schema(schema).validate({}, :output_format => 'basic').fetch('error')
    )

    schema.merge!('x-error' => { '^' => 'schema error', '*' => 'catchall' })
    assert_equal(
      ['catchall', 'catchall'].sort,
      JSONSchemer.schema(schema).validate({}).map { |error| error.fetch('error') }.sort
    )
    assert_equal(
      'schema error',
      JSONSchemer.schema(schema).validate({}, :output_format => 'basic').fetch('error')
    )
  end

  def test_x_error_precedence
    schema = {
      '$id' => 'https://example.com/schema',
      'required' => ['a']
    }
    x_error_schema = schema.merge(
      'x-error' => {
        'required' => 'x error'
      }
    )

    assert_equal('x error', JSONSchemer.schema(x_error_schema).validate({}).first.fetch('error'))
    assert_equal('object at root is missing required properties: a', JSONSchemer.schema(schema).validate({}).first.fetch('error'))

    i18n({ 'https://example.com/schema#/required' => 'i18n error' }) do
      assert_equal('x error', JSONSchemer.schema(x_error_schema).validate({}).first.fetch('error'))
      assert_equal('i18n error', JSONSchemer.schema(schema).validate({}).first.fetch('error'))
    end
  end

  def test_i18n_error
    schema = {
      '$id' => 'https://example.com/schema',
      '$schema' => 'https://json-schema.org/draft/2019-09/schema',
      'properties' => {
        'yah' => {
       
    
  def test_i18n_error
    schema = {
      '$id' => 'https://example.com/schema',
      '$schema' => 'https://json-schema.org/draft/2019-09/schema',
      'properties' => {
        'yah' => {
          'type' => 'string'
        }
      }
    }
    schemer = JSONSchemer.schema(schema)
    data = { 'yah' => 1 }

    errors = {
      'https://example.com/schema#' => 'A',
      'https://example.com/schema#/properties/yah/type' => '1',
      'https://example.com/schema' => {
        '#' => 'B',
        '#/properties/yah/type' => '2',
        '^' => 'D',
        'type' => '4',
        '*' => 'E/5'
      },
      '#/properties/yah/type' => '3',
      '#' => 'C',
      'https://json-schema.org/draft/2019-09/schema' => {
        '^' => 'F',
        'type' => '6',
        '*' => 'G/7'
      },
      '^' => 'H',
      'type' => '8',
      '*' => 'I/9: %{instance} `%{instanceLocation}` %{keywordLocation} %{absoluteKeywordLocation}',

      'https://example.com/differentschema#/properties/yah/type' => '?',
      'https://example.com/differentschema' => {
        '#/properties/yah/type' => '?',
        'type' => '?',
        '*' => '?'
      },
      '?' => '?'
    }

    i18n(errors) do
      assert_equal('A', schemer.validate(data, :output_format => 'basic').fetch('error'))
      assert_equal('1', schemer.validate(data).first.fetch('error'))
    end

    errors.delete('https://example.com/schema#')
    assert_equal('B', i18n(errors) { schemer.validate(data, :output_format => 'basic').fetch('error') })

    errors.delete('https://example.com/schema#/properties/yah/type')
    assert_equal('2', i18n(errors) { schemer.validate(data).first.fetch('error') })

    errors.fetch('https://example.com/schema').delete('#')
    assert_equal('C', i18n(errors) { schemer.validate(data, :output_format => 'basic').fetch('error') })

    errors.fetch('https://example.com/schema').delete('#/properties/yah/type')
    assert_equal('3', i18n(errors) { schemer.validate(data).first.fetch('error') })

    errors.delete('#')
    assert_equal('D', i18n(errors) { schemer.validate(data, :output_format => 'basic').fetch('error') })

    errors.delete('#/properties/yah/type')
    assert_equal('4', i18n(errors) { schemer.validate(data).first.fetch('error') })

    errors.fetch('https://example.com/schema').delete('^')
    assert_equal('E/5', i18n(errors) { schemer.validate(data, :output_format => 'basic').fetch('error') })

    errors.fetch('https://example.com/schema').delete('type')
    assert_equal('E/5', i18n(errors) { schemer.validate(data).first.fetch('error') })

    errors.fetch('https://example.com/schema').delete('*')
    i18n(errors) do
      assert_equal('F', schemer.validate(data, :output_format => 'basic').fetch('error'))
      assert_equal('6', schemer.validate(data).first.fetch('error'))
    end

    errors.fetch('https://json-schema.org/draft/2019-09/schema').delete('^')
    assert_equal('G/7', i18n(errors) { schemer.validate(data, :output_format => 'basic').fetch('error') })

    errors.fetch('https://json-schema.org/draft/2019-09/schema').delete('type')
    assert_equal('G/7', i18n(errors) { schemer.validate(data).first.fetch('error') })

    errors.fetch('https://json-schema.org/draft/2019-09/schema').delete('*')
    i18n(errors) do
      assert_equal('H', schemer.validate(data, :output_format => 'basic').fetch('error'))
      assert_equal('8', schemer.validate(data).first.fetch('error'))
    end

    errors.delete('^')
    assert_equal('I/9: {"yah"=>1} ``  https://example.com/schema#', i18n(errors) { schemer.validate(data, :output_format => 'basic').fetch('error') })

    errors.delete('type')
    assert_equal('I/9: 1 `/yah` /properties/yah/type https://example.com/schema#/properties/yah/type', i18n(errors) { schemer.validate(data).first.fetch('error') })

    i18n(errors) do
      assert_equal(true, schemer.validate(data).first.fetch('i18n'))
      refute(schemer.validate(data).first.key?('x-error'))
      assert_equal(true, schemer.validate(data, :output_format => 'basic').fetch('i18n'))
      refute(schemer.validate(data, :output_format => 'basic').key?('x-error'))
    end

    errors.delete('*')
    i18n(errors) do
      assert_equal('value at root does not match schema', schemer.validate(data, :output_format => 'basic').fetch('error'))
      assert_equal('value at `/yah` is not a string', schemer.validate(data).first.fetch('error'))

      refute(schemer.validate(data).first.key?('i18n'))
      refute(schemer.validate(data).first.key?('x-error'))
      refute(schemer.validate(data, :output_format => 'basic').key?('i18n'))
      refute(schemer.validate(data, :output_format => 'basic').key?('x-error'))
    end
  end

private

  def i18n(errors)
    require 'yaml'
    require 'i18n'
    # require 'i18n/debug'

    JSONSchemer.remove_class_variable(:@@i18n) if JSONSchemer.class_variable_defined?(:@@i18n)
    # @on_lookup ||= I18n::Debug.on_lookup
    # I18n::Debug.on_lookup(&@on_lookup)

    Tempfile.create(['translations', '.yml']) do |file|
      file.write(YAML.dump({ 'en' => { 'json_schemer' => { 'errors' => errors } } }))
      file.flush

      I18n.load_path += [file.path]

      yield
    ensure
      I18n.load_path -= [file.path]
    end
  ensure
    JSONSchemer.remove_class_variable(:@@i18n)
    # I18n::Debug.on_lookup {}
  end
end