OVMS3-idf/tools/kconfig_new/test/test_confserver.py

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#!/usr/bin/env python
from __future__ import print_function
import os
import json
import argparse
import tempfile
import pexpect
# Each protocol version to be tested needs a 'testcases_vX.txt' file
PROTOCOL_VERSIONS = [1, 2]
def parse_testcases(version):
with open("testcases_v%d.txt" % version, "r") as f:
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cases = [line for line in f.readlines() if len(line.strip()) > 0]
# Each 3 lines in the file should be formatted as:
# * Description of the test change
# * JSON "changes" to send to the server
# * Result JSON to expect back from the server
if len(cases) % 3 != 0:
print("Warning: testcases.txt has wrong number of non-empty lines (%d). Should be 3 lines per test case, always." % len(cases))
for i in range(0, len(cases), 3):
desc = cases[i]
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send = cases[i + 1]
expect = cases[i + 2]
if not desc.startswith("* "):
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raise RuntimeError("Unexpected description at line %d: '%s'" % (i + 1, desc))
if not send.startswith("> "):
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raise RuntimeError("Unexpected send at line %d: '%s'" % (i + 2, send))
if not expect.startswith("< "):
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raise RuntimeError("Unexpected expect at line %d: '%s'" % (i + 3, expect))
desc = desc[2:]
send = json.loads(send[2:])
expect = json.loads(expect[2:])
yield (desc, send, expect)
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def main():
parser = argparse.ArgumentParser()
parser.add_argument('--logfile', type=argparse.FileType('w'), help='Optional session log of the interactions with confserver.py')
args = parser.parse_args()
try:
# set up temporary file to use as sdkconfig copy
with tempfile.NamedTemporaryFile(mode="w", delete=False) as temp_sdkconfig:
temp_sdkconfig_path = os.path.join(tempfile.gettempdir(), temp_sdkconfig.name)
with open("sdkconfig") as orig:
temp_sdkconfig.write(orig.read())
cmdline = "../confserver.py --kconfig Kconfig --config %s" % temp_sdkconfig_path
print("Running: %s" % cmdline)
p = pexpect.spawn(cmdline, timeout=30, logfile=args.logfile, echo=False, use_poll=True, maxread=1)
p.expect("Server running.+\r\n")
initial = expect_json(p)
print("Initial: %s" % initial)
for version in PROTOCOL_VERSIONS:
test_protocol_version(p, version)
test_load_save(p, temp_sdkconfig_path)
test_invalid_json(p)
print("Done. All passed.")
finally:
try:
os.remove(temp_sdkconfig_path)
except OSError:
pass
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def expect_json(p):
# run p.expect() to expect a json object back, and return it as parsed JSON
p.expect("{.+}\r\n")
result = p.match.group(0).strip().decode()
print("Read raw data from server: %s" % result)
return json.loads(result)
def send_request(p, req):
req = json.dumps(req)
print("Sending: %s" % (req))
p.send("%s\n" % req)
readback = expect_json(p)
print("Read back: %s" % (json.dumps(readback)))
return readback
def test_protocol_version(p, version):
print("*****")
print("Testing version %d..." % version)
# reload the config from the sdkconfig file
req = {"version": version, "load": None}
readback = send_request(p, req)
print("Reset response: %s" % (json.dumps(readback)))
# run through each test case
cases = parse_testcases(version)
for (desc, send, expected) in cases:
print(desc)
req = {"version": version, "set": send}
readback = send_request(p, req)
if readback.get("version", None) != version:
raise RuntimeError('Expected {"version" : %d} in response' % version)
for expect_key in expected.keys():
read_vals = readback[expect_key]
exp_vals = expected[expect_key]
if read_vals != exp_vals:
expect_diff = dict((k,v) for (k,v) in exp_vals.items() if k not in read_vals or v != read_vals[k])
raise RuntimeError("Test failed! Was expecting %s: %s" % (expect_key, json.dumps(expect_diff)))
print("OK")
print("Version %d OK" % version)
def test_load_save(p, temp_sdkconfig_path):
print("Testing load/save...")
before = os.stat(temp_sdkconfig_path).st_mtime
save_result = send_request(p, {"version": 2, "save": temp_sdkconfig_path})
print("Save result: %s" % (json.dumps(save_result)))
assert "error" not in save_result
assert len(save_result["values"]) == 0 # nothing changes when we save
assert len(save_result["ranges"]) == 0
after = os.stat(temp_sdkconfig_path).st_mtime
assert after > before # something got written to disk
# Do a V2 load
load_result = send_request(p, {"version": 2, "load": temp_sdkconfig_path})
print("V2 Load result: %s" % (json.dumps(load_result)))
assert "error" not in load_result
assert len(load_result["values"]) == 0 # in V2, loading same file should return no config items
assert len(load_result["ranges"]) == 0
# Do a V1 load
load_result = send_request(p, {"version": 1, "load": temp_sdkconfig_path})
print("V1 Load result: %s" % (json.dumps(load_result)))
assert "error" not in load_result
assert len(load_result["values"]) > 0 # in V1, loading same file should return all config items
assert len(load_result["ranges"]) > 0
def test_invalid_json(p):
print("Testing invalid JSON formatting...")
bad_escaping = r'{ "version" : 2, "load" : "c:\some\path\not\escaped\as\json" }'
p.send("%s\n" % bad_escaping)
readback = expect_json(p)
print(readback)
assert "json" in readback["error"][0].lower()
not_really_json = 'Hello world!!'
p.send("%s\n" % not_really_json)
readback = expect_json(p)
print(readback)
assert "json" in readback["error"][0].lower()
if __name__ == "__main__":
main()