test: add a test that creating VMs until no default name generated an…

…d checking

test/check-machines-create

@@ -21,6 +21,7 @@ import contextlib
 import math
 import os
 import re
+import string
 import time
 import xml.etree.ElementTree as ET
 from datetime import datetime
@@ -253,6 +254,9 @@ class TestMachinesCreate(machineslib.VirtualMachinesCase):
         dialog.cancel()
 
     def testCreateNameGeneration(self):
+        m = self.machine
+        b = self.browser
+
         config = TestMachinesCreate.TestCreateConfig
         runner = TestMachinesCreate.CreateVmRunner(self)
 
@@ -304,6 +308,38 @@ class TestMachinesCreate(machineslib.VirtualMachinesCase):
                                                       create_and_run=False),
                           check_env_empty=False)
 
+        # Create VMs until no default generated name
+        for v in string.ascii_uppercase:
+            vm_name = predicted_name + v
+            vm_path = "/tmp/" + vm_name
+
+            m.execute(f"touch {vm_path}")
+            m.execute(
+                "virt-install --connect system"
+                f" --name {vm_name}"
+                f" --os-variant {config.FEDORA_28}"
+                f" --disk {vm_path}"
+                " --memory 1 --wait -1 --print-xml > /tmp/xml;"
+                " virsh define /tmp/xml")
+            b.wait_visible(f"#vm-{vm_name}-system-name")
+
+            self.addCleanup(self.machine.execute, f"virsh undefine {vm_name}")
+
+        b.click("#create-new-vm")
+        b.wait_visible("#create-vm-dialog")
+        b.wait_attr("#vm-name", "placeholder", "Unique name")
+
+        b.click("#os-select-group > div button")
+        b.click(f"#os-select li:contains('{config.FEDORA_28}') button")
+        b.wait_attr("#os-select-group input", "value", config.FEDORA_28)
+
+        b.click("#create-and-edit")
+
+        b.wait_visible("#create-vm-dialog")
+        b.wait_text("#vm-name-helper", "Name must not be empty")
+        b.wait_visible("#create-and-run:[aria-disabled=true]")
+        b.wait_visible("#create-and-edit:[aria-disabled=true]")
+
     def testCreateCloudBaseImage(self):
         runner = TestMachinesCreate.CreateVmRunner(self)
         config = TestMachinesCreate.TestCreateConfig