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1 | |
2 | |
3 # test step.ShellCommand and the slave-side commands.ShellCommand | |
4 | |
5 import sys, time, os | |
6 from twisted.trial import unittest | |
7 from twisted.internet import reactor, defer | |
8 from twisted.python import util | |
9 from buildbot.slave.commands import SlaveShellCommand | |
10 from buildbot.test.runutils import SlaveCommandTestBase | |
11 | |
12 class SlaveSide(SlaveCommandTestBase, unittest.TestCase): | |
13 def testOne(self): | |
14 self.setUpBuilder("test_shell.testOne") | |
15 emitcmd = util.sibpath(__file__, "emit.py") | |
16 args = { | |
17 'command': [sys.executable, emitcmd, "0"], | |
18 'workdir': ".", | |
19 } | |
20 d = self.startCommand(SlaveShellCommand, args) | |
21 d.addCallback(self.collectUpdates) | |
22 def _check(logs): | |
23 self.failUnlessEqual(logs['stdout'], "this is stdout\n") | |
24 self.failUnlessEqual(logs['stderr'], "this is stderr\n") | |
25 d.addCallback(_check) | |
26 return d | |
27 | |
28 # TODO: move test_slavecommand.Shell and .ShellPTY over here | |
29 | |
30 def _generateText(self, filename): | |
31 lines = [] | |
32 for i in range(3): | |
33 lines.append("this is %s %d\n" % (filename, i)) | |
34 return "".join(lines) | |
35 | |
36 def testLogFiles_0(self): | |
37 return self._testLogFiles(0) | |
38 | |
39 def testLogFiles_1(self): | |
40 return self._testLogFiles(1) | |
41 | |
42 def testLogFiles_2(self): | |
43 return self._testLogFiles(2) | |
44 | |
45 def testLogFiles_3(self): | |
46 return self._testLogFiles(3) | |
47 | |
48 def _testLogFiles(self, mode): | |
49 basedir = "test_shell.testLogFiles" | |
50 self.setUpBuilder(basedir) | |
51 # emitlogs.py writes two lines to stdout and two logfiles, one second | |
52 # apart. Then it waits for us to write something to stdin, then it | |
53 # writes one more line. | |
54 | |
55 if mode != 3: | |
56 # we write something to the log file first, to exercise the logic | |
57 # that distinguishes between the old file and the one as modified | |
58 # by the ShellCommand. We set the timestamp back 5 seconds so | |
59 # that timestamps can be used to distinguish old from new. | |
60 log2file = os.path.join(basedir, "log2.out") | |
61 f = open(log2file, "w") | |
62 f.write("dummy text\n") | |
63 f.close() | |
64 earlier = time.time() - 5 | |
65 os.utime(log2file, (earlier, earlier)) | |
66 | |
67 if mode == 3: | |
68 # mode=3 doesn't create the old logfiles in the first place, but | |
69 # then behaves like mode=1 (where the command pauses before | |
70 # creating them). | |
71 mode = 1 | |
72 | |
73 # mode=1 will cause emitlogs.py to delete the old logfiles first, and | |
74 # then wait two seconds before creating the new files. mode=0 does | |
75 # not do this. | |
76 args = { | |
77 'command': [sys.executable, | |
78 util.sibpath(__file__, "emitlogs.py"), | |
79 "%s" % mode], | |
80 'workdir': ".", | |
81 'logfiles': {"log2": "log2.out", | |
82 "log3": "log3.out"}, | |
83 'keep_stdin_open': True, | |
84 } | |
85 finishd = self.startCommand(SlaveShellCommand, args) | |
86 # The first batch of lines is written immediately. The second is | |
87 # written after a pause of one second. We poll once per second until | |
88 # we see both batches. | |
89 | |
90 self._check_timeout = 10 | |
91 d = self._check_and_wait() | |
92 def _wait_for_finish(res, finishd): | |
93 return finishd | |
94 d.addCallback(_wait_for_finish, finishd) | |
95 d.addCallback(self.collectUpdates) | |
96 def _check(logs): | |
97 self.failUnlessEqual(logs['stdout'], self._generateText("stdout")) | |
98 if mode == 2: | |
99 self.failIf(('log','log2') in logs) | |
100 self.failIf(('log','log3') in logs) | |
101 else: | |
102 self.failUnlessEqual(logs[('log','log2')], | |
103 self._generateText("log2")) | |
104 self.failUnlessEqual(logs[('log','log3')], | |
105 self._generateText("log3")) | |
106 d.addCallback(_check) | |
107 d.addBoth(self._maybePrintError) | |
108 return d | |
109 | |
110 def _check_and_wait(self, res=None): | |
111 self._check_timeout -= 1 | |
112 if self._check_timeout <= 0: | |
113 raise defer.TimeoutError("gave up on command") | |
114 logs = self.collectUpdates() | |
115 if logs.get('stdout') == "this is stdout 0\nthis is stdout 1\n": | |
116 # the emitlogs.py process is now waiting for something to arrive | |
117 # on stdin | |
118 self.cmd.command.pp.transport.write("poke\n") | |
119 return | |
120 if not self.cmd.running: | |
121 self.fail("command finished too early") | |
122 spin = defer.Deferred() | |
123 spin.addCallback(self._check_and_wait) | |
124 reactor.callLater(1, spin.callback, None) | |
125 return spin | |
126 | |
127 def _maybePrintError(self, res): | |
128 rc = self.findRC() | |
129 if rc != 0: | |
130 print "Command ended with rc=%s" % rc | |
131 print "STDERR:" | |
132 self.printStderr() | |
133 return res | |
134 | |
135 # MAYBE TODO: a command which appends to an existing logfile should | |
136 # result in only the new text being sent up to the master. I need to | |
137 # think about this more first. | |
138 | |
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