def test_validate_dark_varying_exposure_and_expire_time(self):
# extend case of test_qualified_dark. Iterate over different exposure_time and expire_time directly
dark_scan_list, expire_time = [], 11.
self.assertEqual(validate_dark(0.1, expire_time,dark_scan_list), None)
time_now = time.time()
dark_scan_list = []
self.assertTrue(os.path.isfile(glbl.dk_yaml))
for i in range(3):
dark_def = (str(uuid.uuid1()), 0.1, time_now-1200+600*(i))
dark_scan_list.append(dark_def)
# should return None if no valid items are found
expire_time = 0.
light_cnt_time = 0.1
self.assertEqual(validate_dark(light_cnt_time, expire_time,dark_scan_list), None)
expire_time = 1000.
light_cnt_time = 3.
self.assertEqual(validate_dark(light_cnt_time, expire_time,dark_scan_list), None)
# find the most recent one
dark_uid = dark_scan_list[-1][0]
light_cnt_time = 0.1
expire_time = 11.
self.assertEqual(validate_dark(light_cnt_time, expire_time,dark_scan_list), dark_uid)
# should still find the most recent one, even though there is more than one valid one
dark_uid = dark_scan_list[-1][0]
expire_time = 22.
self.assertEqual(validate_dark(light_cnt_time, expire_time,dark_scan_list), dark_uid)
# now find one that is in time but lower down the list because it has a different count time
for i in range(3):
dark_def = (str(uuid.uuid1()), 0.1*(i+1), time_now-1200+600*(i))
dark_scan_list.append(dark_def)
test_list = copy.copy(dark_scan_list)
dark_uid = dark_scan_list[-2][0]
expire_time = 22.
light_cnt_time = 0.2
self.assertEqual(validate_dark(light_cnt_time, expire_time,dark_scan_list), dark_uid)
def _unittest_prun(sample,scan,**kwargs):
'''on this 'sample' run this 'scan'
this function doesn't control shutter nor trigger run engine. It is designed to test functionality
Arguments:
sample - sample metadata object
scan - scan metadata object
**kwargs - dictionary that will be passed through to the run-engine metadata
'''
scan.md.update({'xp_isprun':True})
light_cnt_time = scan.md['sc_params']['exposure']
expire_time = glbl.dk_window
dark_field_uid = validate_dark(light_cnt_time, expire_time)
if not dark_field_uid: dark_field_uid = 'can not find a qualified dark uid'
scan.md['sc_params'].update({'dk_field_uid': dark_field_uid})
scan.md['sc_params'].update({'dk_window':expire_time})
return scan.md
