Fix test for empty resources response

Update test_resources_returns_empty_array_when_no_resources to use correct mock response format with empty resources array instead of empty result object. Also reorder test to group with other resources tests. Follow up: #160

Author: dak2

test/mcp/client_test.rb

@@ -84,6 +84,18 @@ def test_resources_sends_request_to_transport_and_returns_resources_array
  assert_equal("file:///path/to/resource2", resources.last["uri"])
  end
 
+ def test_resources_returns_empty_array_when_no_resources
+ transport = mock
+ mock_response = { "result" => { "resources" => [] } }
+
+ transport.expects(:send_request).returns(mock_response).once
+
+ client = Client.new(transport: transport)
+ resources = client.resources
+
+ assert_empty(resources)
+ end
+
  def test_read_resource_sends_request_to_transport_and_returns_contents
  transport = mock
  uri = "file:///path/to/resource.txt"
@@ -129,17 +141,5 @@ def test_read_resource_returns_empty_array_when_no_contents
 
  assert_empty(contents)
  end
-
- def test_resources_returns_empty_array_when_no_resources
- transport = mock
- mock_response = { "result" => {} }
-
- transport.expects(:send_request).returns(mock_response).once
-
- client = Client.new(transport: transport)
- resources = client.resources
-
- assert_empty(resources)
- end
  end
 end