1 files changed, 66 insertions, 7 deletions
diff --git a/Lib/test/test_sunau.py b/Lib/test/test_sunau.py
index 339ab57..1b0baee 100644
--- a/Lib/test/test_sunau.py
+++ b/Lib/test/test_sunau.py
@@ -1,5 +1,6 @@
-from test.support import run_unittest, TESTFN
+from test.support import TESTFN, unlink
 import unittest
+import pickle
 import os
 
 import sunau
@@ -17,10 +18,7 @@ class SunAUTest(unittest.TestCase):
     def tearDown(self):
         if self.f is not None:
             self.f.close()
-        try:
-            os.remove(TESTFN)
-        except OSError:
-            pass
+        unlink(TESTFN)
 
     def test_lin(self):
         self.f = sunau.open(TESTFN, 'w')
@@ -62,9 +60,70 @@ class SunAUTest(unittest.TestCase):
         self.assertEqual(self.f.readframes(nframes), output)
         self.f.close()
 
+    def test_getparams(self):
+        self.f = sunau.open(TESTFN, 'w')
+        self.f.setnchannels(nchannels)
+        self.f.setsampwidth(sampwidth)
+        self.f.setframerate(framerate)
+        self.f.setcomptype('ULAW', '')
+        output = b'\0' * nframes * nchannels * sampwidth
+        self.f.writeframes(output)
+        self.f.close()
+
+        self.f = sunau.open(TESTFN, 'rb')
+        params = self.f.getparams()
+        self.assertEqual(params.nchannels, nchannels)
+        self.assertEqual(params.sampwidth, sampwidth)
+        self.assertEqual(params.framerate, framerate)
+        self.assertEqual(params.nframes, nframes)
+        self.assertEqual(params.comptype, 'ULAW')
+
+        dump = pickle.dumps(params)
+        self.assertEqual(pickle.loads(dump), params)
+
+    def test_write_context_manager_calls_close(self):
+        # Close checks for a minimum header and will raise an error
+        # if it is not set, so this proves that close is called.
+        with self.assertRaises(sunau.Error):
+            with sunau.open(TESTFN, 'wb') as f:
+                pass
+        with self.assertRaises(sunau.Error):
+            with open(TESTFN, 'wb') as testfile:
+                with sunau.open(testfile):
+                    pass
+
+    def test_context_manager_with_open_file(self):
+        with open(TESTFN, 'wb') as testfile:
+            with sunau.open(testfile) as f:
+                f.setnchannels(nchannels)
+                f.setsampwidth(sampwidth)
+                f.setframerate(framerate)
+            self.assertFalse(testfile.closed)
+        with open(TESTFN, 'rb') as testfile:
+            with sunau.open(testfile) as f:
+                self.assertFalse(f.getfp().closed)
+                params = f.getparams()
+                self.assertEqual(params[0], nchannels)
+                self.assertEqual(params[1], sampwidth)
+                self.assertEqual(params[2], framerate)
+            self.assertIsNone(f.getfp())
+            self.assertFalse(testfile.closed)
+
+    def test_context_manager_with_filename(self):
+        # If the file doesn't get closed, this test won't fail, but it will
+        # produce a resource leak warning.
+        with sunau.open(TESTFN, 'wb') as f:
+            f.setnchannels(nchannels)
+            f.setsampwidth(sampwidth)
+            f.setframerate(framerate)
+        with sunau.open(TESTFN) as f:
+            self.assertFalse(f.getfp().closed)
+            params = f.getparams()
+            self.assertEqual(params[0], nchannels)
+            self.assertEqual(params[1], sampwidth)
+            self.assertEqual(params[2], framerate)
+        self.assertIsNone(f.getfp())
 
-def test_main():
-    run_unittest(SunAUTest)
 
 if __name__ == "__main__":
     unittest.main()