[tor-commits] [ooni-probe/develop] Add Dominic Hamon's nettest for running tests written with other interpreters.

[isis@xxxxxxxxxxxxxx]

commit df4601af8ce70e48ffd4362556c2b07e4a6f53db
Author: Dominic Hamon <dominic@xxxxxxxxxxxxxxxxxx>
Date:   Sat Mar 30 13:44:08 2013 +0000

    Add Dominic Hamon's nettest for running tests written with other interpreters.
    
     * Fixes #8011.
---
 nettests/experimental/script.py |   90 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/nettests/experimental/script.py b/nettests/experimental/script.py
new file mode 100644
index 0000000..4772f65
--- /dev/null
+++ b/nettests/experimental/script.py
@@ -0,0 +1,90 @@
+from ooni import nettest
+from ooni.utils import log
+from twisted.internet import defer, protocol, reactor
+from twisted.python import usage
+
+import os
+
+
+def which(program):
+    def is_exe(fpath):
+        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
+
+    fpath, fname = os.path.split(program)
+    if fpath:
+        if is_exe(program):
+            return program
+    else:
+        for path in os.environ["PATH"].split(os.pathsep):
+            path = path.strip('"')
+            exe_file = os.path.join(path, program)
+            if is_exe(exe_file):
+                return exe_file
+    return None
+
+
+class UsageOptions(usage.Options):
+    optParameters = [
+        ['interpreter', 'i', '', 'The interpreter to use'],
+        ['script', 's', '', 'The script to run']
+    ]
+
+
+class ScriptProcessProtocol(protocol.ProcessProtocol):
+    def __init__(self, test_case):
+        self.test_case = test_case
+        self.deferred = defer.Deferred()
+
+    def connectionMade(self):
+        log.debug("connectionMade")
+        self.transport.closeStdin()
+        self.test_case.report['lua_output'] = ""
+
+    def outReceived(self, data):
+        log.debug('outReceived: %s' % data)
+        self.test_case.report['lua_output'] += data
+
+    def errReceived(self, data):
+        log.err('Script error: %s' % data)
+        self.transport.signalProcess('KILL')
+
+    def processEnded(self, status):
+        rc = status.value.exitCode
+        log.debug('processEnded: %s, %s' % \
+                  (rc, self.test_case.report['lua_output']))
+        if rc == 0:
+            self.deferred.callback(self)
+        else:
+            self.deferred.errback(rc)
+
+
+# TODO: Maybe the script requires a back-end.
+class Script(nettest.NetTestCase):
+    name = "Script test"
+    version = "0.1"
+    authors = "Dominic Hamon"
+
+    usageOptions = UsageOptions
+    requiredOptions = ['interpreter', 'script']
+
+    def test_run_script(self):
+        """
+        We run the script specified in the usage options and take whatever
+        is printed to stdout as the results of the test.
+        """
+        processProtocol = ScriptProcessProtocol(self)
+
+        interpreter = self.localOptions['interpreter']
+        if not which(interpreter):
+            log.err('Unable to find %s executable in PATH.' % interpreter)
+            return
+
+        reactor.spawnProcess(processProtocol,
+                             interpreter,
+                             args=[interpreter, self.localOptions['script']],
+                             env={'HOME': os.environ['HOME']},
+                             usePTY=True)
+
+        if not reactor.running:
+            reactor.run()
+        return processProtocol.deferred



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