Updated testsuite

test/y2network/hostname_writer_test.rb

@@ -0,0 +1,74 @@
+# Copyright (c) [2019] SUSE LLC
+#
+# All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as published
+# by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, contact SUSE LLC.
+#
+# To contact SUSE LLC about this file by physical or electronic mail, you may
+# find current contact information at www.suse.com.
+require_relative "../test_helper"
+require "y2network/sysconfig/hostname_writer"
+require "y2network/hostname"
+
+describe Y2Network::Sysconfig::HostnameWriter do
+  subject { Y2Network::Sysconfig::HostnameWriter.new }
+
+  describe ".update_hostname" do
+    let(:hostname_container) do
+      instance_double(
+        Y2Network::Hostname,
+        static: hostname,
+        dhcp_hostname: false,
+        save_hostname?: true
+      )
+    end
+
+    let(:old_hostname_container) do
+      instance_double(
+        Y2Network::Hostname,
+        static: "oldhostname",
+        dhcp_hostname: false,
+        save_hostname?: true
+      )
+    end
+
+    context "when updating hostname" do
+      let(:hostname) { "hostname" }
+
+      it "updates system with the new hostname" do
+        expect(Yast::Execute)
+          .to receive(:on_target!)
+          .with("/usr/bin/hostname", hostname)
+        expect(Yast::SCR)
+          .to receive(:Write)
+          .with(anything, anything, /#{hostname}/)
+
+        subject.write(hostname_container, old_hostname_container)
+      end
+    end
+
+    context "when deleting hostname" do
+      let(:hostname) { "" }
+
+      it "updates system with the new hostname" do
+        expect(Yast::Execute)
+          .not_to receive(:on_target!)
+        expect(Yast::SCR)
+          .to receive(:Write)
+          .with(anything, anything, /#{hostname}/)
+
+        subject.write(hostname_container, old_hostname_container)
+      end
+    end
+  end
+end