Add dom0 tests for sd-export-config

tests/test_sd_export.py

@@ -1,3 +1,5 @@
+import json
+import re
 import unittest
 
 from base import SD_VM_Local_Test
@@ -21,6 +23,23 @@ def test_sd_export_package_installed(self):
         self.assertTrue(self._package_is_installed("cryptsetup"))
         self.assertTrue(self._package_is_installed("printer-driver-brlaser"))
 
+    def test_sd_export_config_present(self):
+            with open("config.json") as c:
+                config = json.load(c)
+
+                # Extract values from config.json
+                match = re.match(r'sys-usb:(\d)-(\d)', config['usb']['device'])
+                pci_bus_id_value = match.group(1)
+                usb_device_value = match.group(2)
+
+            wanted_lines = [
+                "{",
+                "  \"pci_bus_id\": \"{}\",".format(pci_bus_id_value),
+                "  \"usb_device\": \"{}\"".format(usb_device_value),
+                "}",
+            ]
+            for line in wanted_lines:
+                self.assertFileHasLine("/etc/sd-export-config.json", line)
 
 def load_tests(loader, tests, pattern):
     suite = unittest.TestLoader().loadTestsFromTestCase(SD_Export_Tests)