Changeset 8466 for main/waeup.kofa/trunk/src/waeup/kofa/utils/tests

Timestamp:

17 May 2012, 16:30:02 (12 years ago)

Author:

uli

Message:

Add helper funcs to determine fileformat of media files.

Location:

main/waeup.kofa/trunk/src/waeup/kofa/utils/tests

Files:

• sample_jpg_valid.jpg (added)
• sample_pdf_valid.pdf (added)
• sample_png_valid.png (added)
• test_helpers.py (modified) (2 diffs)

main/waeup.kofa/trunk/src/waeup/kofa/utils/tests/test_helpers.py

@@ -317 +317 @@
         return
 
+class GetFileFormatTestCase(unittest.TestCase):
+    # Tests for the get_fileformat helper.
+
+    def setUp(self):
+        self.valid_jpg_path = os.path.join(
+            os.path.dirname(__file__), 'sample_jpg_valid.jpg')
+        self.valid_jpg = open(self.valid_jpg_path, 'rb').read()
+        self.valid_png_path = os.path.join(
+            os.path.dirname(__file__), 'sample_png_valid.png')
+        self.valid_png = open(self.valid_png_path, 'rb').read()
+        self.valid_pdf_path = os.path.join(
+            os.path.dirname(__file__), 'sample_pdf_valid.pdf')
+        self.valid_pdf = open(self.valid_pdf_path, 'rb').read()
+        return
+
+    def test_none(self):
+        # ``None`` is not a file and not a valid file format
+        self.assertEqual(helpers.get_fileformat(None), None)
+        return
+
+    def test_path_and_bytestream(self):
+        # get_fileformat accepts bytestreams and paths as arg.
+        self.assertEqual(
+            helpers.get_fileformat(None, self.valid_jpg), 'jpg')
+        self.assertEqual(
+            helpers.get_fileformat(self.valid_jpg_path), 'jpg')
+        # path is ignored when giving a bytestream
+        self.assertEqual(
+            helpers.get_fileformat('blah', self.valid_jpg), 'jpg')
+        return
+
+    def test_jpg(self):
+        # we recognize jpeg images.
+        self.assertEqual(
+            helpers.get_fileformat(self.valid_jpg_path), 'jpg')
+        self.assertEqual(
+            helpers.get_fileformat(None, self.valid_jpg), 'jpg')
+        return
+
+    def test_png(self):
+        # we recognize png images.
+        self.assertEqual(
+            helpers.get_fileformat(self.valid_png_path), 'png')
+        self.assertEqual(
+            helpers.get_fileformat(None, self.valid_png), 'png')
+        return
+
+    def test_pdf(self):
+        # we recognize pdf documents.
+        self.assertEqual(
+            helpers.get_fileformat(self.valid_pdf_path), 'pdf')
+        self.assertEqual(
+            helpers.get_fileformat(None, self.valid_pdf), 'pdf')
+        return
+
 def test_suite():
     suite = unittest.TestSuite()
@@ -330 +385 @@
         IfaceNamesTestCase,
         DateTimeHelpersTestCase,
+        GetFileFormatTestCase,
         ]:
         suite.addTests(