#
# This is minimal MicroPython variant of run-tests script, which uses
# .exp files as generated by run-tests --write-exp. It is useful to run
# testsuite on systems which have neither CPython3 nor unix shell.
# This script is intended to be run by the same interpreter executable
# which is to be tested, so should use minimal language functionality.
#
import usys as sys
import uos as os


tests = ["basics", "micropython", "float", "import", "io", " misc", "unicode", "extmod", "unix"]

if sys.platform == "win32":
 MICROPYTHON = "micropython.exe"
else:
 MICROPYTHON = "micropython"


def should_skip(test):
 if test.startswith("native"):
 return True
 if test.startswith("viper"):
 return True


test_count = 0
passed_count = 0
skip_count = 0

for suite in tests:
 # print("Running in: %s" % suite)
 if sys.platform == "win32":
 # dir /b prints only contained filenames, one on a line
 # http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/dir.mspx
 r = os.system("dir /b %s/*.py >tests.lst" % suite)
 else:
 r = os.system("ls %s/*.py | xargs -n1 basename >tests.lst" % suite)
 assert r == 0

 with open("tests.lst") as f:
 testcases = f.readlines()
 testcases = [l[:-1] for l in testcases]
 assert testcases, "No tests found in dir '%s', which is implausible" % suite
 # print(testcases)
 for t in testcases:
 if t == "native_check.py":
 continue

 qtest = "%s/%s" % (suite, t)

 if should_skip(t):
 print("skip " + qtest)
 skip_count += 1
 continue

 exp = None
 try:
 f = open(qtest + ".exp")
 exp = f.read()
 f.close()
 except OSError:
 pass

 if exp is not None:
 # print("run " + qtest)
 r = os.system(MICROPYTHON + " %s >.tst.out" % qtest)
 if r == 0:
 f = open(".tst.out")
 out = f.read()
 f.close()
 else:
 out = "CRASH"

 if out == "SKIP\n":
 print("skip " + qtest)
 skip_count += 1
 else:
 if out == exp:
 print("pass " + qtest)
 passed_count += 1
 else:
 print("FAIL " + qtest)

 test_count += 1
 else:
 skip_count += 1

print("%s tests performed" % test_count)
print("%s tests passed" % passed_count)
if test_count != passed_count:
 print("%s tests failed" % (test_count - passed_count))
if skip_count:
 print("%s tests skipped" % skip_count)