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# frozen_string_literal: true
require "spec_helper"
describe GraphQL::Schema::NonNull do
let(:of_type) { Jazz::Musician }
let(:non_null_type) { GraphQL::Schema::NonNull.new(of_type) }
it "returns list? to be false" do
refute non_null_type.list?
end
it "returns non_null? to be true" do
assert non_null_type.non_null?
end
it "returns kind to be GraphQL::TypeKinds::NON_NULL" do
assert_equal GraphQL::TypeKinds::NON_NULL, non_null_type.kind
end
it "returns correct type signature" do
assert_equal "Musician!", non_null_type.to_type_signature
end
describe "comparison operator" do
it "will return false if list types 'of_type' are different" do
new_of_type = Jazz::InspectableKey
new_non_null_type = GraphQL::Schema::NonNull.new(new_of_type)
refute_equal non_null_type, new_non_null_type
end
it "will return true if list types 'of_type' are the same" do
new_of_type = Jazz::Musician
new_non_null_type = GraphQL::Schema::NonNull.new(new_of_type)
assert_equal non_null_type, new_non_null_type
end
end
describe "double-nulling" do
it "is a parse error in a query" do
res = Jazz::Schema.execute "
query($id: ID!!) {
find(id: $id) { __typename }
}
"
expected_err = if USING_C_PARSER
"syntax error, unexpected BANG (\"!\"), expecting RPAREN or VAR_SIGN at [2, 21]"
else
"Expected VAR_SIGN, actual: BANG (\"!\") at [2, 21]"
end
assert_equal [expected_err], res["errors"].map { |e| e["message"] }
end
end
describe "Introspection" do
class NonNullIntrospectionSchema < GraphQL::Schema
class Query < GraphQL::Schema::Object
field :strs, [String], null: false
end
query Query
end
it "doesn't break on description" do
res = NonNullIntrospectionSchema.execute(<<-GRAPHQL).to_h
query IntrospectionQuery {
__type(name: "Query") {
fields {
type {
description
ofType {
description
ofType {
description
}
}
}
}
}
}
GRAPHQL
assert_equal [nil], res["data"]["__type"]["fields"].map { |f| f["description"] }
end
end
end
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