Module: Zenspec::Matchers::GraphQLTypeMatchers::FieldNameHelper

Defined in:
lib/zenspec/matchers/graphql_type_matchers.rb

Overview

Helper module for field name conversion

Instance Method Summary collapse

Instance Method Details

#camelize(name) ⇒ Object

Convert snake_case to camelCase for GraphQL field lookup GraphQL-Ruby automatically converts snake_case field definitions to camelCase

Handles edge cases:

  • Empty strings: "" -> ""
  • No underscores: "foo" -> "foo"
  • Leading underscores: "_foo_bar" -> "fooBar"
  • Trailing underscores: "foo_bar_" -> "fooBar"
  • Consecutive underscores: "foo__bar" -> "fooBar"


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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 19

def camelize(name)
  str = name.to_s
  return str if str.empty? || !str.include?("_")

  # Split on underscores and reject empty parts (handles consecutive underscores)
  parts = str.split("_").reject(&:empty?)
  return str if parts.empty?

  parts.map.with_index { |word, i| i.zero? ? word : word.capitalize }.join
end

#get_argument_with_conversion(field, arg_name) ⇒ Object

Try to get an argument by name, attempting both the original name and camelCase version



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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 57

def get_argument_with_conversion(field, arg_name)
  return nil unless field.respond_to?(:arguments)

  arg_name_str = arg_name.to_s

  # Try the exact name first (for backward compatibility)
  arg = field.arguments[arg_name_str]
  return arg if arg

  # Try the camelCase version if the original name contains underscores
  if arg_name_str.include?("_")
    camel_name = camelize(arg_name_str)
    arg = field.arguments[camel_name]
    return arg if arg
  end

  nil
end

#get_field_exact(type, field_name) ⇒ Object 



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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 48

def get_field_exact(type, field_name)
  if type.respond_to?(:fields)
    type.fields[field_name]
  elsif type.respond_to?(:get_field)
    type.get_field(field_name)
  end
end

#get_field_with_conversion(type, field_name) ⇒ Object

Try to get a field by name, attempting both the original name and camelCase version



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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 31

def get_field_with_conversion(type, field_name)
  field_name_str = field_name.to_s

  # Try the exact name first (for backward compatibility)
  field = get_field_exact(type, field_name_str)
  return field if field

  # Try the camelCase version if the original name contains underscores
  if field_name_str.include?("_")
    camel_name = camelize(field_name_str)
    field = get_field_exact(type, camel_name)
    return field if field
  end

  nil
end

#list?(type) ⇒ Boolean

Check if a type is a List type

Returns:

  • (Boolean) 


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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 108

def list?(type)
  type.is_a?(GraphQL::Schema::List) ||
    (type.respond_to?(:list?) && type.list?)
end

#non_null?(type) ⇒ Boolean

Check if a type is a NonNull type

Returns:

  • (Boolean) 


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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 114

def non_null?(type)
  type.is_a?(GraphQL::Schema::NonNull) ||
    (type.respond_to?(:non_null?) && type.non_null?)
end

#type_to_string(type) ⇒ Object

Convert a GraphQL type object to its string representation Handles NonNull (!), List ([]), and nested types



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# File 'lib/zenspec/matchers/graphql_type_matchers.rb', line 80

def type_to_string(type)
  case type
  when GraphQL::Schema::NonNull
    "#{type_to_string(type.of_type)}!"
  when GraphQL::Schema::List
    "[#{type_to_string(type.of_type)}]"
  when GraphQL::Schema::Member
    type.graphql_name
  else
    # Handle wrapped types from graphql-ruby
    if type.respond_to?(:unwrap)
      unwrapped = type.unwrap
      base_name = unwrapped.respond_to?(:graphql_name) ? unwrapped.graphql_name : unwrapped.to_s

      # Build the type string with wrappers
      result = base_name
      result = "[#{result}]" if list?(type)
      result = "#{result}!" if non_null?(type)
      result
    elsif type.respond_to?(:graphql_name)
      type.graphql_name
    else
      type.to_s
    end
  end
end