fix tests

test/y2network/sysconfig/interfaces_writer_test.rb

@@ -42,6 +42,9 @@
       allow(Yast::Execute).to receive(:on_target)
       allow(eth0).to receive(:hardware).and_return(hardware)
       allow(writer).to receive(:sleep)
+
+      # prevent collision with real hardware
+      allow(Y2Network::UdevRule).to receive(:all).and_return([])
     end
 
     around do |example|

test/y2network/widgets/blink_button_test.rb

@@ -21,10 +21,14 @@
 require "cwm/rspec"
 
 require "y2network/widgets/blink_button"
+require "y2network/interface_config_builder"
 
 describe Y2Network::Widgets::BlinkButton do
-  subject { described_class.new("IFCFG" => "eth0") }
+  let(:builder) { Y2Network::InterfaceConfigBuilder.for("eth") }
+  subject { described_class.new(builder) }
+
   before do
+    builder.name = "eth0"
     # no real blinking
     allow(Yast::SCR).to receive(:Execute)
   end