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Fix USB traceback during testing when wrong size 

In the pyusb_basic host test check the length of control transfers
before comparing contents for equality.
pull/9768/head
Russ Butler 2018-10-30 15:36:39 -05:00
parent 130927068c
commit cb6a6dbd20
1 changed files with 6 additions and 11 deletions
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17
TESTS/host_tests/pyusb_basic.py
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@ -24,6 +24,7 @@ import inspect
from threading import Thread, Event, Timer
import array
import random
import os
import usb.core
from usb.util import build_request_type
@ -841,12 +842,8 @@ def control_data_test(dev, sizes_list, log):
request = VENDOR_TEST_CTRL_OUT_SIZES
value = i # Size of data the device should actually read
index = 0 # Unused - set for debugging only
data = bytearray(i) # Dummy data
if i == 1:
data[0] = count
else:
data[0] = count - 1
data[i - 1] = count + 1
data = bytearray(os.urandom(i)) # Dummy data
try:
dev.ctrl_transfer(request_type, request, value, index, data, 5000)
except usb.core.USBError:
@ -860,11 +857,9 @@ def control_data_test(dev, sizes_list, log):
length = i
try:
ret = dev.ctrl_transfer(request_type, request, value, index, length, 5000)
if i == 1:
raise_if_different(count, ret[0], lineno(), "send/receive data not match")
else:
raise_if_different(count - 1, ret[0], lineno(), "send/receive data not match")
raise_if_different(count + 1, ret[i - 1], lineno(), "send/receive data not match")
raise_if_different(i, len(ret), lineno(), "send/receive data is the wrong size")
for j in range(0, i):
raise_if_different(data[j], ret[j], lineno(), "send/receive data not match")
except usb.core.USBError:
raise_unconditionally(lineno(), "VENDOR_TEST_CTRL_IN_SIZES failed")
count += 1