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# frozen_string_literal: true
require "spec_helper"
describe GraphQL::Language::Nodes::AbstractNode do
describe ".visit_method" do
# `.visit_method` is really helpful for generating methods in
# custom visitor classes -- make sure this API keeps working.
it "names a method on the visitor class" do
node_classes = GraphQL::Language::Nodes.constants
.map { |c| GraphQL::Language::Nodes.const_get(c) }
.select { |obj| obj.is_a?(Class) && obj < GraphQL::Language::Nodes::AbstractNode }
node_classes -= [GraphQL::Language::Nodes::WrapperType, GraphQL::Language::Nodes::NameOnlyNode]
expected_classes = 35
assert_equal 35, node_classes.size
tested_classes = 0
node_classes.each do |node_class|
expected_method_name = "on_#{GraphQL::Schema::Member::BuildType.underscore(node_class.name.split("::").last)}"
assert_equal node_class.visit_method.to_s, expected_method_name, "#{node_class} has #{expected_method_name} for visit_method"
assert GraphQL::Language::Visitor.method_defined?(expected_method_name), "Visitor has ##{expected_method_name}"
assert GraphQL::Language::StaticVisitor.method_defined?(expected_method_name), "Visitor has ##{expected_method_name}"
tested_classes += 1
end
assert_equal expected_classes, tested_classes, "All classes were tested"
end
end
describe "#filename" do
it "is set after .parse_file" do
filename = "spec/support/parser/filename_example.graphql"
doc = GraphQL.parse_file(filename)
op = doc.definitions.first
field = op.selections.first
arg = field.arguments.first
assert_equal filename, doc.filename
assert_equal filename, op.filename
assert_equal filename, field.filename
assert_equal filename, arg.filename
end
it "is null when parse from string" do
doc = GraphQL.parse("{ thing }")
assert_nil doc.filename
end
end
describe "#to_query_tring" do
let(:document) {
GraphQL.parse('type Query { a: String! }')
}
let(:custom_printer_class) {
Class.new(GraphQL::Language::Printer) {
def print_field_definition(print_field_definition)
print_string("<Field Hidden>")
end
}
}
it "accepts a custom printer" do
expected = <<-SCHEMA
type Query {
<Field Hidden>
}
SCHEMA
assert_equal expected.chomp, document.to_query_string(printer: custom_printer_class.new)
end
end
describe "#dup" do
it "works with adding selections" do
f = GraphQL::Language::Nodes::Field.new(name: "f")
# Calling `.children` may populate an internal cache
assert_equal "f", f.to_query_string, "the original is unchanged"
assert_equal 0, f.children.size
assert_equal 0, f.selections.size
f2 = f.merge(selections: [GraphQL::Language::Nodes::Field.new(name: "__typename")])
assert_equal "f", f.to_query_string, "the original is unchanged"
assert_equal 0, f.children.size
assert_equal 0, f.selections.size
assert_equal "f {\n __typename\n}", f2.to_query_string, "the duplicate is updated"
assert_equal 1, f2.children.size
assert_equal 1, f2.selections.size
end
end
end
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