improve test coverage

src/modules/NtpClient.rb

@@ -402,8 +402,8 @@ def Import(settings)
       ntp_conf.clear_pools
       (settings["ntp_servers"] || []).each do |server|
         options = {}
-        options["iburst"] if server["iburst"]
-        options["offline"] if server["offline"]
+        options["iburst"] = nil if server["iburst"]
+        options["offline"] = nil if server["offline"]
         name = server["name"]
         log.info "adding server '#{name.inspect}' with options #{options.inspect}"
         ntp_conf.add_pool(name, options)

test/fixtures/autoyast/autoinst.xml

@@ -17,14 +17,14 @@
     </signature-handling>
   </general>
   <ntp-client>
-    <ntp_policy>auto</ntp_policy>
+    <ntp_policy>eth*</ntp_policy>
     <ntp_servers config:type="list">
       <ntp_server>
-        <iburst config:type="boolean">true</iburst>
+        <iburst config:type="boolean">false</iburst>
         <name>cz.pool.ntp.org</name>
-        <offline config:type="boolean">false</offline>
+        <offline config:type="boolean">true</offline>
       </ntp_server>
     </ntp_servers>
-    <ntp_sync>systemd</ntp_sync>
+    <ntp_sync>15</ntp_sync>
   </ntp-client>
 </profile>

test/fixtures/cfa/chrony.conf

@@ -0,0 +1,38 @@
+# Use public servers from the pool.ntp.org project.
+# Please consider joining the pool (http://www.pool.ntp.org/join.html).
+pool 2.opensuse.pool.ntp.org iburst
+
+# Record the rate at which the system clock gains/losses time.
+driftfile /var/lib/chrony/drift
+
+# Allow the system clock to be stepped in the first three updates
+# if its offset is larger than 1 second.
+makestep 1.0 3
+
+# Enable kernel synchronization of the real-time clock (RTC).
+rtcsync
+
+# Enable hardware timestamping on all interfaces that support it.
+#hwtimestamp *
+
+# Increase the minimum number of selectable sources required to adjust
+# the system clock.
+#minsources 2
+
+# Allow NTP client access from local network.
+#allow 192.168.0.0/16
+
+# Serve time even if not synchronized to a time source.
+#local stratum 10
+
+# Specify file containing keys for NTP authentication.
+#keyfile /etc/chrony.keys
+
+# Get TAI-UTC offset and leap seconds from the system tz database.
+#leapsectz right/UTC
+
+# Specify directory for log files.
+logdir /var/log/chrony
+
+# Select which information is logged.
+#log measurements statistics tracking