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# frozen_string_literal: true
require "spec_helper"
describe GraphQL::Query::NullContext do
let(:null_context) { GraphQL::Query::NullContext.instance }
describe "#[]" do
it "returns nil" do
assert_nil(null_context[:foo])
end
end
describe "#fetch" do
it "returns the default value argument" do
assert_equal(:default, null_context.fetch(:foo, :default))
end
it "returns the block result" do
assert_equal(:default, null_context.fetch(:foo) { :default })
end
it "raises a KeyError when not passed a default value or a block" do
assert_raises(KeyError) { null_context.fetch(:foo) }
end
end
describe "#key?" do
it "returns false" do
assert(!null_context.key?(:foo))
end
end
describe "#dig?" do
it "returns nil" do
assert_nil(null_context.dig(:foo, :bar, :baz))
end
end
end
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