import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

testing/mozbase/mozprocess/tests/test_process_reader.py

@@ -0,0 +1,101 @@
+import unittest
+import subprocess
+import sys
+from mozprocess.processhandler import ProcessReader, StoreOutput
+
+
+def run_python(str_code, stdout=subprocess.PIPE, stderr=subprocess.PIPE):
+    cmd = [sys.executable, '-c', str_code]
+    return subprocess.Popen(cmd, stdout=stdout, stderr=stderr)
+
+
+class TestProcessReader(unittest.TestCase):
+
+    def setUp(self):
+        self.out = StoreOutput()
+        self.err = StoreOutput()
+        self.finished = False
+
+        def on_finished():
+            self.finished = True
+        self.timeout = False
+
+        def on_timeout():
+            self.timeout = True
+        self.reader = ProcessReader(stdout_callback=self.out,
+                                    stderr_callback=self.err,
+                                    finished_callback=on_finished,
+                                    timeout_callback=on_timeout)
+
+    def test_stdout_callback(self):
+        proc = run_python('print 1; print 2')
+        self.reader.start(proc)
+        self.reader.thread.join()
+
+        self.assertEqual(self.out.output, ['1', '2'])
+        self.assertEqual(self.err.output, [])
+
+    def test_stderr_callback(self):
+        proc = run_python('import sys; sys.stderr.write("hello world\\n")')
+        self.reader.start(proc)
+        self.reader.thread.join()
+
+        self.assertEqual(self.out.output, [])
+        self.assertEqual(self.err.output, ['hello world'])
+
+    def test_stdout_and_stderr_callbacks(self):
+        proc = run_python('import sys; sys.stderr.write("hello world\\n"); print 1; print 2')
+        self.reader.start(proc)
+        self.reader.thread.join()
+
+        self.assertEqual(self.out.output, ['1', '2'])
+        self.assertEqual(self.err.output, ['hello world'])
+
+    def test_finished_callback(self):
+        self.assertFalse(self.finished)
+        proc = run_python('')
+        self.reader.start(proc)
+        self.reader.thread.join()
+        self.assertTrue(self.finished)
+
+    def test_timeout(self):
+        self.reader.timeout = 0.05
+        self.assertFalse(self.timeout)
+        proc = run_python('import time; time.sleep(0.1)')
+        self.reader.start(proc)
+        self.reader.thread.join()
+        self.assertTrue(self.timeout)
+        self.assertFalse(self.finished)
+
+    def test_output_timeout(self):
+        self.reader.output_timeout = 0.05
+        self.assertFalse(self.timeout)
+        proc = run_python('import time; time.sleep(0.1)')
+        self.reader.start(proc)
+        self.reader.thread.join()
+        self.assertTrue(self.timeout)
+        self.assertFalse(self.finished)
+
+    def test_read_without_eol(self):
+        proc = run_python('import sys; sys.stdout.write("1")')
+        self.reader.start(proc)
+        self.reader.thread.join()
+        self.assertEqual(self.out.output, ['1'])
+
+    def test_read_with_strange_eol(self):
+        proc = run_python('import sys; sys.stdout.write("1\\r\\r\\r\\n")')
+        self.reader.start(proc)
+        self.reader.thread.join()
+        self.assertEqual(self.out.output, ['1'])
+
+    def test_mixed_stdout_stderr(self):
+        proc = run_python('import sys; sys.stderr.write("hello world\\n"); print 1; print 2',
+                          stderr=subprocess.STDOUT)
+        self.reader.start(proc)
+        self.reader.thread.join()
+
+        self.assertEqual(sorted(self.out.output), sorted(['1', '2', 'hello world']))
+        self.assertEqual(self.err.output, [])
+
+if __name__ == '__main__':
+    unittest.main()