Add tests for invalid base64 file content

1 files changed, 58 insertions, 0 deletions

diff --git a/tests/test_snekio.py b/tests/test_snekio.py
new file mode 100644
index 0000000..8f04429
--- /dev/null
+++ b/tests/test_snekio.py
@@ -0,0 +1,58 @@
+from unittest import TestCase
+
+from snekbox import snekio
+from snekbox.snekio import FileAttachment, IllegalPathError, ParsingError
+
+
+class SnekIOTests(TestCase):
+    def test_safe_path(self) -> None:
+        cases = [
+            ("", ""),
+            ("foo", "foo"),
+            ("foo/bar", "foo/bar"),
+            ("foo/bar.ext", "foo/bar.ext"),
+        ]
+
+        for path, expected in cases:
+            self.assertEqual(snekio.safe_path(path), expected)
+
+    def test_safe_path_raise(self):
+        cases = [
+            ("../foo", IllegalPathError, "File path '../foo' may not traverse beyond root"),
+            ("/foo", IllegalPathError, "File path '/foo' must be relative"),
+        ]
+
+        for path, error, msg in cases:
+            with self.assertRaises(error) as cm:
+                snekio.safe_path(path)
+            self.assertEqual(str(cm.exception), msg)
+
+    def test_file_from_dict(self):
+        cases = [
+            ({"path": "foo", "content": ""}, FileAttachment("foo", b"")),
+            ({"path": "foo"}, FileAttachment("foo", b"")),
+            ({"path": "foo", "content": "Zm9v"}, FileAttachment("foo", b"foo")),
+            ({"path": "foo/bar.ext", "content": "Zm9v"}, FileAttachment("foo/bar.ext", b"foo")),
+        ]
+
+        for data, expected in cases:
+            self.assertEqual(FileAttachment.from_dict(data), expected)
+
+    def test_file_from_dict_error(self):
+        cases = [
+            (
+                {"path": "foo", "content": "9"},
+                ParsingError,
+                "Invalid base64 encoding for file 'foo'",
+            ),
+            (
+                {"path": "var/a.txt", "content": "1="},
+                ParsingError,
+                "Invalid base64 encoding for file 'var/a.txt'",
+            ),
+        ]
+
+        for data, error, msg in cases:
+            with self.assertRaises(error) as cm:
+                FileAttachment.from_dict(data)
+            self.assertEqual(str(cm.exception), msg)