gRPC-haskell/tests/test-client.py

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2016-07-26 01:37:06 +02:00
from simple_pb2 import *
from simple_pb2_grpc import *
import grpc
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from uuid import uuid4
import random
import Queue
print "Starting python client"
channel = grpc.insecure_channel('localhost:50051')
stub = SimpleServiceStub(channel)
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def runTests():
# Test normal call: return a sum of all numbers sent to it
print "Test 100 random sums"
for i in xrange(100):
randints = [random.randint(0, 1000) for _ in xrange(random.randint(10, 1000))]
name = "test%d" % i
response = stub.normalCall(SimpleServiceRequest(request = name, num = randints), timeout = 10)
assert response.response == name
assert response.num == sum(randints)
# Test streaming call: The server response will be the sum of all numbers sent in the request along with a concatenation of the request name
print "Test 100 random sums (client streaming)"
for i in xrange(100):
# avoid globals
expected_sum = [0]
expected_response_name = ['']
def send_requests(esum, ename):
for _ in xrange(random.randint(5, 50)):
nums = [random.randint(0, 1000) for _ in xrange(random.randint(10, 100))]
name = str(uuid4())
esum[0] += sum(nums)
ename[0] += name
yield SimpleServiceRequest(request = name, num = nums)
response = stub.clientStreamingCall(send_requests(expected_sum, expected_response_name), timeout = 10)
assert response.response == expected_response_name[0]
assert response.num == expected_sum[0]
# Test server streaming call: The server should respond once for each number in the request
print "Test 100 random server streaming calls"
for i in xrange(100):
nums = [random.randint(0, 1000) for _ in xrange(random.randint(0, 1000))]
for response in stub.serverStreamingCall(SimpleServiceRequest(request = "server streaming", num = nums), timeout = 60):
assert response.num == nums[0]
assert response.response == "server streaming"
nums = nums[1:]
# Test bidirectional streaming: for each request, we should get a response indicating the sum of all numbers sent in the last request
print "Test bidirectional streaming"
for i in xrange(100):
requests = Queue.Queue()
def send_requests():
for _ in xrange(random.randint(5, 50)):
nums = [random.randint(0, 1000) for _ in xrange(random.randint(10, 100))]
name = str(uuid4())
requests.put((name, sum(nums)))
yield SimpleServiceRequest(request = name, num = nums)
for response in stub.biDiStreamingCall(send_requests(), timeout = 10):
(exp_name, exp_sum) = requests.get()
assert response.response == exp_name
assert response.num == exp_sum
print "Sending DONE message to server"
stub.done(SimpleServiceDone(), timeout = 10)
print "All python client tests against the generated server were successful"
try:
runTests()
except Exception as e:
print "Python client test exception caught: "
print e.__doc__
print e.message
print "Sending DONE message to server before exiting"
stub.done(SimpleServiceDone(), timeout = 10)
print "Exiting with failure status"
exit(1)