def test_getblob_raises_on_bad_itemuri(self):
"""BaseFileSystem.getblob(itemURI) raises on bad itemURI"""
# setup -----------------------
bad_itemURI = "/spam/eggs/egg1.xml"
fs = FileSystem(zip_pkg_path)
# verify ----------------------
with self.assertRaises(LookupError):
fs.getblob(bad_itemURI)
def test_getblob_correct_length(self):
"""BaseFileSystem.getblob() returns object of expected length"""
# setup -----------------------
partname = "/docProps/thumbnail.jpeg"
fs = FileSystem(zip_pkg_path)
# exercise --------------------
blob = fs.getblob(partname)
# verify ----------------------
self.assertLength(blob, 8147)
def test_write_blob_raises_on_dup_itemuri(self):
"""ZipFileSystem.write_blob() raises on duplicate itemURI"""
# setup -----------------------
partname = "/docProps/thumbnail.jpeg"
fs = FileSystem(zip_pkg_path)
blob = fs.getblob(partname)
test_fs = ZipFileSystem(test_save_pptx_path, "w")
test_fs.write_blob(blob, partname)
# verify ----------------------
with self.assertRaises(DuplicateKeyError):
test_fs.write_blob(blob, partname)
def test_write_blob_round_trips(self):
"""ZipFileSystem.write_blob() round-trips intact"""
# setup -----------------------
partname = "/docProps/thumbnail.jpeg"
fs = FileSystem(zip_pkg_path)
in_blob = fs.getblob(partname)
test_fs = ZipFileSystem(test_save_pptx_path, "w")
# exercise --------------------
test_fs.write_blob(in_blob, partname)
# verify ----------------------
out_blob = test_fs.getblob(partname)
expected = in_blob
actual = out_blob
msg = "retrived blob (len %d) differs from original (len %d)" % (len(actual), len(expected))
self.assertEqual(expected, actual, msg)