Module: GraphQL::Testing::Helpers

Included in:
SchemaHelpers
Defined in:
lib/graphql/testing/helpers.rb

Defined Under Namespace

Modules: SchemaHelpers Classes: Error, FieldNotDefinedError, FieldNotVisibleError, ResolutionAssertionContext, TypeNotDefinedError, TypeNotVisibleError

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.for(schema_class) ⇒ Module

Returns A helpers module which always uses the given schema.

Parameters:

Returns:

  • (Module) —

    A helpers module which always uses the given schema



7
8
9
 
# File 'lib/graphql/testing/helpers.rb', line 7

def self.for(schema_class)
  SchemaHelpers.for(schema_class)
end

Instance Method Details

#run_graphql_field(schema, field_path, object, arguments: {}, context: {}, ast_node: nil, lookahead: nil) ⇒ Object 



42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/graphql/testing/helpers.rb', line 42

def run_graphql_field(schema, field_path, object, arguments: {}, context: {}, ast_node: nil, lookahead: nil)
  type_name, *field_names = field_path.split(".")
  dummy_query = GraphQL::Query.new(schema, "{ __typename }", context: context)
  query_context = dummy_query.context
  object_type = dummy_query.types.type(type_name) # rubocop:disable Development/ContextIsPassedCop
  if object_type
    graphql_result = object
    field_names.each do |field_name|
      inner_object = graphql_result
      graphql_result = object_type.wrap(inner_object, query_context)
      if graphql_result.nil?
        return nil
      end
      visible_field = dummy_query.types.field(object_type, field_name) # rubocop:disable Development/ContextIsPassedCop
      if visible_field
        dummy_query.context.dataloader.run_isolated {
          query_context[:current_field] = visible_field
          field_args = visible_field.coerce_arguments(graphql_result, arguments, query_context)
          field_args = schema.sync_lazy(field_args)
          if visible_field.extras.any?
            extra_args = {}
            visible_field.extras.each do |extra|
              extra_args[extra] = case extra
              when :ast_node
                ast_node ||= GraphQL::Language::Nodes::Field.new(name: visible_field.graphql_name)
              when :lookahead
                lookahead ||= begin
                  ast_node ||= GraphQL::Language::Nodes::Field.new(name: visible_field.graphql_name)
                  Execution::Lookahead.new(
                    query: dummy_query,
                    ast_nodes: [ast_node],
                    field: visible_field,
                  )
                end
              else
                raise ArgumentError, "This extra isn't supported in `run_graphql_field` yet: `#{extra.inspect}`. Open an issue on GitHub to request it: https://github.com/rmosolgo/graphql-ruby/issues/new"
              end
            end

            field_args = field_args.merge_extras(extra_args)
          end
          graphql_result = visible_field.resolve(graphql_result, field_args.keyword_arguments, query_context)
          graphql_result = schema.sync_lazy(graphql_result)
        }
        object_type = visible_field.type.unwrap
      elsif object_type.all_field_definitions.any? { |f| f.graphql_name == field_name }
        raise FieldNotVisibleError.new(field_name: field_name, type_name: type_name)
      else
        raise FieldNotDefinedError.new(type_name: type_name, field_name: field_name)
      end
    end
    graphql_result
  else
    unfiltered_type = schema.use_visibility_profile? ? schema.visibility.get_type(type_name) : schema.get_type(type_name) # rubocop:disable ContextIsPassedCop
    if unfiltered_type
      raise TypeNotVisibleError.new(type_name: type_name)
    else
      raise TypeNotDefinedError.new(type_name: type_name)
    end
  end
end

#with_resolution_context(schema, type:, object:, context: {}) {|resolution_context| ... } ⇒ Object

Yields:

  • (resolution_context) 


104
105
106
107
108
109
110
111
112
113
 
# File 'lib/graphql/testing/helpers.rb', line 104

def with_resolution_context(schema, type:, object:, context:{})
  resolution_context = ResolutionAssertionContext.new(
    self,
    schema: schema,
    type_name: type,
    object: object,
    context: context
  )
  yield(resolution_context)
end