tests: Test suspend/resume and sysfs attributes in synaptics

tests/synaptics/custom.py

@@ -1,10 +1,14 @@
 #!/usr/bin/python3
 
+import os
 import gi
 gi.require_version('FPrint', '2.0')
 from gi.repository import FPrint, GLib
 
-ctx = GLib.main_context_default()
+import sys
+import traceback
+sys.excepthook = lambda *args : (traceback.print_exception(*args), sys.exit(1))
+
 
 c = FPrint.Context()
 c.enumerate()
@@ -13,6 +17,24 @@ devices = c.get_devices()
 d = devices[0]
 del devices
 
+usb_device = d.get_property('fpi-usb-device')
+bus_num = usb_device.get_bus()
+port = []
+while True:
+    parent = usb_device.get_parent()
+    if parent is None:
+        break
+    port.append(str(usb_device.get_port_number()))
+    usb_device = parent
+port = '.'.join(port)
+
+persist = f'/sys/bus/usb/devices/{bus_num}-{port}/power/persist'
+wakeup = f'/sys/bus/usb/devices/{bus_num}-{port}/power/wakeup'
+
+# may not have written anything
+assert open(persist).read().strip() == "0"
+assert open(wakeup).read().strip() == "disabled"
+
 assert d.get_driver() == "synaptics"
 assert not d.has_feature(FPrint.DeviceFeature.CAPTURE)
 assert d.has_feature(FPrint.DeviceFeature.IDENTIFY)
@@ -29,7 +51,7 @@ d.clear_storage_sync()
 template = FPrint.Print.new(d)
 
 def enroll_progress(*args):
-    assert d.get_finger_status() == FPrint.FingerStatusFlags.NEEDED
+    #assert d.get_finger_status() == FPrint.FingerStatusFlags.NEEDED
     print('enroll progress: ' + str(args))
 
 # List, enroll, list, verify, delete, list
@@ -41,6 +63,21 @@ print("enroll done")
 
 print("verifying")
 assert d.get_finger_status() == FPrint.FingerStatusFlags.NONE
+
+# Inject a suspend/resume cycle into the verify
+def suspend_resume():
+    d.suspend_sync()
+    assert open(persist).read().strip() == "0"
+    assert open(wakeup).read().strip() == "enabled"
+
+    assert open(persist, 'w').write('0\n')
+    d.resume_sync()
+    # This tests that libfprint doesn't write if the value is correct
+    # (i.e. the trailing \ would be lost inside umockdev if written)
+    assert open(persist).read() == "0\n"
+    assert open(wakeup).read().strip() == "disabled"
+
+GLib.idle_add(suspend_resume, priority=GLib.PRIORITY_HIGH)
 verify_res, verify_print = d.verify_sync(p)
 assert d.get_finger_status() == FPrint.FingerStatusFlags.NONE
 print("verify done")