1 files changed, 105 insertions, 0 deletions
diff --git a/testing/mozbase/mozfile/tests/test_tempfile.py b/testing/mozbase/mozfile/tests/test_tempfile.py
new file mode 100644
index 0000000000..3e250d6a76
--- /dev/null
+++ b/testing/mozbase/mozfile/tests/test_tempfile.py
@@ -0,0 +1,105 @@
+#!/usr/bin/env python
+
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""
+tests for mozfile.NamedTemporaryFile
+"""
+import os
+import unittest
+
+import mozfile
+import mozunit
+import six
+
+
+class TestNamedTemporaryFile(unittest.TestCase):
+    """test our fix for NamedTemporaryFile"""
+
+    def test_named_temporary_file(self):
+        """Ensure the fix for re-opening a NamedTemporaryFile works
+
+        Refer to https://bugzilla.mozilla.org/show_bug.cgi?id=818777
+        and https://bugzilla.mozilla.org/show_bug.cgi?id=821362
+        """
+
+        test_string = b"A simple test"
+        with mozfile.NamedTemporaryFile() as temp:
+            # Test we can write to file
+            temp.write(test_string)
+            # Forced flush, so that we can read later
+            temp.flush()
+
+            # Test we can open the file again on all platforms
+            self.assertEqual(open(temp.name, "rb").read(), test_string)
+
+    def test_iteration(self):
+        """ensure the line iterator works"""
+
+        # make a file and write to it
+        tf = mozfile.NamedTemporaryFile()
+        notes = [b"doe", b"rae", b"mi"]
+        for note in notes:
+            tf.write(b"%s\n" % note)
+        tf.flush()
+
+        # now read from it
+        tf.seek(0)
+        lines = [line.rstrip(b"\n") for line in tf.readlines()]
+        self.assertEqual(lines, notes)
+
+        # now read from it iteratively
+        lines = []
+        for line in tf:
+            lines.append(line.strip())
+        self.assertEqual(lines, [])  # because we did not seek(0)
+        tf.seek(0)
+        lines = []
+        for line in tf:
+            lines.append(line.strip())
+        self.assertEqual(lines, notes)
+
+    def test_delete(self):
+        """ensure ``delete=True/False`` works as expected"""
+
+        # make a deleteable file; ensure it gets cleaned up
+        path = None
+        with mozfile.NamedTemporaryFile(delete=True) as tf:
+            path = tf.name
+        self.assertTrue(isinstance(path, six.string_types))
+        self.assertFalse(os.path.exists(path))
+
+        # it is also deleted when __del__ is called
+        # here we will do so explicitly
+        tf = mozfile.NamedTemporaryFile(delete=True)
+        path = tf.name
+        self.assertTrue(os.path.exists(path))
+        del tf
+        self.assertFalse(os.path.exists(path))
+
+        # Now the same thing but we won't delete the file
+        path = None
+        try:
+            with mozfile.NamedTemporaryFile(delete=False) as tf:
+                path = tf.name
+            self.assertTrue(os.path.exists(path))
+        finally:
+            if path and os.path.exists(path):
+                os.remove(path)
+
+        path = None
+        try:
+            tf = mozfile.NamedTemporaryFile(delete=False)
+            path = tf.name
+            self.assertTrue(os.path.exists(path))
+            del tf
+            self.assertTrue(os.path.exists(path))
+        finally:
+            if path and os.path.exists(path):
+                os.remove(path)
+
+
+if __name__ == "__main__":
+    mozunit.main()