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31690700 JM |
1 | #!/usr/bin/env python |
2 | ||
3 | import os, sys, re | |
7907cd90 | 4 | import argparse, time |
b3c30da9 | 5 | import signal, atexit |
31690700 | 6 | |
7907cd90 JM |
7 | from subprocess import Popen, STDOUT, PIPE |
8 | from select import select | |
31690700 | 9 | |
b3c30da9 JM |
10 | # Pseudo-TTY and terminal manipulation |
11 | import pty, array, fcntl, termios | |
12 | ||
8e4628da | 13 | IS_PY_3 = sys.version_info[0] == 3 |
14 | ||
31690700 JM |
15 | # TODO: do we need to support '\n' too |
16 | sep = "\r\n" | |
7907cd90 | 17 | #sep = "\n" |
31690700 JM |
18 | rundir = None |
19 | ||
20 | parser = argparse.ArgumentParser( | |
21 | description="Run a test file against a Mal implementation") | |
22 | parser.add_argument('--rundir', | |
23 | help="change to the directory before running tests") | |
24 | parser.add_argument('--start-timeout', default=10, type=int, | |
25 | help="default timeout for initial prompt") | |
26 | parser.add_argument('--test-timeout', default=20, type=int, | |
27 | help="default timeout for each individual test action") | |
cc021efe JM |
28 | parser.add_argument('--pre-eval', default=None, type=str, |
29 | help="Mal code to evaluate prior to running the test") | |
ab01be18 JM |
30 | parser.add_argument('--no-pty', action='store_true', |
31 | help="Use direct pipes instead of pseudo-tty") | |
31690700 JM |
32 | |
33 | parser.add_argument('test_file', type=argparse.FileType('r'), | |
34 | help="a test file formatted as with mal test data") | |
35 | parser.add_argument('mal_cmd', nargs="*", | |
36 | help="Mal implementation command line. Use '--' to " | |
37 | "specify a Mal command line with dashed options.") | |
38 | ||
7907cd90 | 39 | class Runner(): |
8caf6211 | 40 | def __init__(self, args, no_pty=False): |
612bfe4a | 41 | #print "args: %s" % repr(args) |
ab01be18 | 42 | self.no_pty = no_pty |
612bfe4a JM |
43 | |
44 | # Cleanup child process on exit | |
45 | atexit.register(self.cleanup) | |
46 | ||
8caf6211 JM |
47 | self.p = None |
48 | env = os.environ | |
49 | env['TERM'] = 'dumb' | |
92dcc815 | 50 | env['INPUTRC'] = '/dev/null' |
82acd3de | 51 | env['PERL_RL'] = 'false' |
ab01be18 | 52 | if no_pty: |
612bfe4a JM |
53 | self.p = Popen(args, bufsize=0, |
54 | stdin=PIPE, stdout=PIPE, stderr=STDOUT, | |
8caf6211 JM |
55 | preexec_fn=os.setsid, |
56 | env=env) | |
7907cd90 JM |
57 | self.stdin = self.p.stdin |
58 | self.stdout = self.p.stdout | |
59 | else: | |
60 | # provide tty to get 'interactive' readline to work | |
61 | master, slave = pty.openpty() | |
b3c30da9 JM |
62 | |
63 | # Set terminal size large so that readline will not send | |
64 | # ANSI/VT escape codes when the lines are long. | |
65 | buf = array.array('h', [100, 200, 0, 0]) | |
66 | fcntl.ioctl(master, termios.TIOCSWINSZ, buf, True) | |
67 | ||
612bfe4a JM |
68 | self.p = Popen(args, bufsize=0, |
69 | stdin=slave, stdout=slave, stderr=STDOUT, | |
8caf6211 JM |
70 | preexec_fn=os.setsid, |
71 | env=env) | |
b020aa3e JM |
72 | # Now close slave so that we will get an exception from |
73 | # read when the child exits early | |
74 | # http://stackoverflow.com/questions/11165521 | |
75 | os.close(slave) | |
7907cd90 JM |
76 | self.stdin = os.fdopen(master, 'r+b', 0) |
77 | self.stdout = self.stdin | |
78 | ||
79 | #print "started" | |
80 | self.buf = "" | |
81 | self.last_prompt = "" | |
82 | ||
83 | def read_to_prompt(self, prompts, timeout): | |
84 | end_time = time.time() + timeout | |
85 | while time.time() < end_time: | |
96deb6a9 JM |
86 | [outs,_,_] = select([self.stdout], [], [], 1) |
87 | if self.stdout in outs: | |
88 | new_data = self.stdout.read(1) | |
8e4628da | 89 | new_data = new_data.decode("utf-8") if IS_PY_3 else new_data |
b020aa3e | 90 | #print "new_data: '%s'" % new_data |
ab01be18 | 91 | if self.no_pty: |
9a383535 JM |
92 | self.buf += new_data.replace("\n", "\r\n") |
93 | else: | |
94 | self.buf += new_data | |
7907cd90 JM |
95 | for prompt in prompts: |
96 | regexp = re.compile(prompt) | |
97 | match = regexp.search(self.buf) | |
98 | if match: | |
99 | end = match.end() | |
100 | buf = self.buf[0:end-len(prompt)] | |
101 | self.buf = self.buf[end:] | |
102 | self.last_prompt = prompt | |
103 | return buf | |
104 | return None | |
105 | ||
96deb6a9 | 106 | def writeline(self, str): |
8e4628da | 107 | def _to_bytes(s): |
108 | return bytes(s, "utf-8") if IS_PY_3 else s | |
109 | ||
110 | self.stdin.write(_to_bytes(str + "\n")) | |
7907cd90 | 111 | |
f6c83b2b | 112 | def cleanup(self): |
612bfe4a | 113 | #print "cleaning up" |
f6c83b2b | 114 | if self.p: |
10034e82 JM |
115 | try: |
116 | os.killpg(self.p.pid, signal.SIGTERM) | |
117 | except OSError: | |
118 | pass | |
f6c83b2b JM |
119 | self.p = None |
120 | ||
121 | ||
31690700 JM |
122 | args = parser.parse_args(sys.argv[1:]) |
123 | test_data = args.test_file.read().split('\n') | |
124 | ||
125 | if args.rundir: os.chdir(args.rundir) | |
126 | ||
8caf6211 | 127 | r = Runner(args.mal_cmd, no_pty=args.no_pty) |
53beaa0a | 128 | |
31690700 JM |
129 | |
130 | test_idx = 0 | |
131 | def read_test(data): | |
132 | global test_idx | |
133 | form, output, ret = None, "", None | |
134 | while data: | |
135 | test_idx += 1 | |
136 | line = data.pop(0) | |
137 | if re.match(r"^\s*$", line): # blank line | |
138 | continue | |
139 | elif line[0:3] == ";;;": # ignore comment | |
140 | continue | |
141 | elif line[0:2] == ";;": # output comment | |
8e4628da | 142 | print(line[3:]) |
31690700 JM |
143 | continue |
144 | elif line[0:2] == ";": # unexpected comment | |
8e4628da | 145 | print("Test data error at line %d:\n%s" % (test_idx, line)) |
31690700 JM |
146 | return None, None, None, test_idx |
147 | form = line # the line is a form to send | |
148 | ||
149 | # Now find the output and return value | |
150 | while data: | |
151 | line = data[0] | |
152 | if line[0:3] == ";=>": | |
153 | ret = line[3:].replace('\\r', '\r').replace('\\n', '\n') | |
154 | test_idx += 1 | |
155 | data.pop(0) | |
156 | break | |
157 | elif line[0:2] == "; ": | |
158 | output = output + line[2:] + sep | |
159 | test_idx += 1 | |
160 | data.pop(0) | |
161 | else: | |
162 | ret = "*" | |
163 | break | |
164 | if ret: break | |
165 | ||
166 | return form, output, ret, test_idx | |
167 | ||
cc021efe JM |
168 | def assert_prompt(timeout): |
169 | # Wait for the initial prompt | |
7907cd90 JM |
170 | header = r.read_to_prompt(['user> ', 'mal-user> '], timeout=timeout) |
171 | if not header == None: | |
172 | if header: | |
8e4628da | 173 | print("Started with:\n%s" % header) |
7907cd90 | 174 | else: |
8e4628da | 175 | print("Did not get 'user> ' or 'mal-user> ' prompt") |
176 | print(" Got : %s" % repr(r.buf)) | |
cc021efe JM |
177 | sys.exit(1) |
178 | ||
31690700 JM |
179 | |
180 | # Wait for the initial prompt | |
cc021efe JM |
181 | assert_prompt(args.start_timeout) |
182 | ||
183 | # Send the pre-eval code if any | |
184 | if args.pre_eval: | |
185 | sys.stdout.write("RUNNING pre-eval: %s" % args.pre_eval) | |
7907cd90 | 186 | p.write(args.pre_eval) |
cc021efe | 187 | assert_prompt(args.test_timeout) |
31690700 JM |
188 | |
189 | fail_cnt = 0 | |
190 | ||
191 | while test_data: | |
192 | form, out, ret, line_num = read_test(test_data) | |
193 | if form == None: | |
194 | break | |
195 | sys.stdout.write("TEST: %s -> [%s,%s]" % (form, repr(out), repr(ret))) | |
196 | sys.stdout.flush() | |
197 | expected = "%s%s%s%s" % (form, sep, out, ret) | |
198 | ||
96deb6a9 | 199 | r.writeline(form) |
31690700 | 200 | try: |
7907cd90 JM |
201 | res = r.read_to_prompt(['\r\nuser> ', '\nuser> ', |
202 | '\r\nmal-user> ', '\nmal-user> '], | |
203 | timeout=args.test_timeout) | |
31690700 | 204 | #print "%s,%s,%s" % (idx, repr(p.before), repr(p.after)) |
7907cd90 | 205 | if ret == "*" or res == expected: |
8e4628da | 206 | print(" -> SUCCESS") |
31690700 | 207 | else: |
8e4628da | 208 | print(" -> FAIL (line %d):" % line_num) |
209 | print(" Expected : %s" % repr(expected)) | |
210 | print(" Got : %s" % repr(res)) | |
31690700 | 211 | fail_cnt += 1 |
7907cd90 | 212 | except: |
10034e82 | 213 | _, exc, _ = sys.exc_info() |
b020aa3e JM |
214 | print("\nException: %s" % repr(exc)) |
215 | print("Output before exception:\n%s" % r.buf) | |
31690700 JM |
216 | sys.exit(1) |
217 | ||
218 | if fail_cnt > 0: | |
8e4628da | 219 | print("FAILURES: %d" % fail_cnt) |
31690700 JM |
220 | sys.exit(2) |
221 | sys.exit(0) |