fprime/Autocoders/Python/test/testgen/test_testgen.py

124 lines
3.9 KiB
Python

"""
test_enum.py:
Checks that the testgen tool is properly generating its test cpp/hpp.
@author jishii
"""
import os
import subprocess
from subprocess import CalledProcessError
import pexpect
from pexpect import TIMEOUT, EOF
import filecmp
import logging
import time
def file_diff(file1, file2):
"""
Returns set of line numbers from file1 which differ from file2
"""
diff_lines = set()
with open(file1, "r") as file1open:
with open(file2, "r") as file2open:
count = 0
while(1):
line1 = file1open.readline()
line2 = file2open.readline()
if not line1 or not line2:
break
elif not line1 == line2:
diff_lines.add(count)
count += 1
return diff_lines
if file_len(file1) < file_len(file2):
print("WARNING: " + file2 + " has more lines than " + file1)
elif file_len(file1) < file_len(file2):
print("WARNING: " + file1 + " has more lines than " + file2)
def file_len(fname):
with open(fname) as f:
for i, l in enumerate(f):
pass
return i + 1
def remove_headers(filename):
"""
Remove header comment so that date doesn't
mess up the file comparison
"""
with open(filename, "r+") as f:
lines = f.readlines()
f.seek(0)
num = 0
for line in lines:
if not (num == 0 and ('*' in line or '//' in line)):
# Don't want to print empty first line
if num != 0 or line.strip():
f.write(line)
num += 1
f.truncate()
def compare_genfile(filename):
"""
Compares genfile with expected genfile
"""
if ".py" in filename:
filename = "DefaultDict/serializable/{}".format(filename)
remove_headers(filename)
if not (filecmp.cmp(filename,"templates/{}".format(filename))):
print("WARNING: {} generated incorrectly according to Autocoders/Python/test/enum_xml/templates/{}".format(filename, filename))
diff_lines = file_diff(filename, "templates/{}".format(filename))
print("WARNING: the following lines from " + filename + " differ from the template: " + str(diff_lines))
else:
print("{} is consistent with expected template".format(filename))
def test_testgen():
"""
Tests that tests are being generated correctly
"""
try:
## Spawn executable
p = pexpect.spawn("python ../../bin/testgen.py -v TestComponentAi.xml")
p.expect("(?=.*Generated test files for TestComponentAi.xml)(?=.*Generated TesterBase.hpp)(?=.*Generated TesterBase.cpp)(?=.*Generated GTestBase.hpp)(?=.*Generated GTestBase.cpp)(?=.*Generated Tester.hpp)(?=.*Generated Tester.cpp)(?!.*ERROR).*", timeout=5)
time.sleep(3)
# Test whether all generated files match expected
compare_genfile("Tester.cpp")
compare_genfile("Tester.hpp")
compare_genfile("TesterBase.cpp")
compare_genfile("TesterBase.hpp")
compare_genfile("GTestBase.cpp")
compare_genfile("GTestBase.hpp")
## If there was no timeout the pexpect test passed
assert True
## A timeout occurs when pexpect cannot match the executable
## output with the designated expectation. In this case the
## key expectation is p.expect(expect_string, timeout=3)
## which tests what the method name describes
except TIMEOUT as e:
print("Timeout Error. Expected Value not returned.")
# print ("-------Program Output-------")
# print (ptestrun.before)
print ("-------Expected Output-------")
print (e.get_trace())
assert False
except EOF as e:
print("EOF Error. Pexpect did not find expected output in program output.")
# print ("-------Program Output-------")
# print (ptestrun.before)
assert False