Replace echo function with a resolver

The `GraphQL::Function` has been deprecated in
favor of resolvers.

1 files changed, 24 insertions, 0 deletions

diff --git a/spec/graphql/resolvers/echo_resolver_spec.rb b/spec/graphql/resolvers/echo_resolver_spec.rb
new file mode 100644
index 00000000000..466501a4227
--- /dev/null
+++ b/spec/graphql/resolvers/echo_resolver_spec.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::EchoResolver do
+  include GraphqlHelpers
+
+  let(:current_user) { create(:user) }
+  let(:text) { 'Message test' }
+
+  describe '#resolve' do
+    it 'echoes text and username' do
+      expect(resolve_echo(text)).to eq %Q("#{current_user.username}" says: #{text})
+    end
+
+    it 'echoes text and nil as username' do
+      expect(resolve_echo(text, { current_user: nil })).to eq "nil says: #{text}"
+    end
+  end
+
+  def resolve_echo(text, context = { current_user: current_user })
+    resolve(described_class, obj: nil, args: { text: text }, ctx: context)
+  end
+end