Moved exceptions to own file; added some more tests

tests/test_skeleton.py

@@ -1,5 +1,6 @@
 """Tests wether the skeleton merge works."""
 from app.skeleton import merge_with_skeleton, MissingKeyError, InvalidKeyError
+from app.exceptions import InvalidKeyError, MissingKeyError
 import pytest
 
 
@@ -19,6 +20,23 @@ def test_single_invalid_key():
     assert e_info.value.message == "Invalid key(s): test2"
 
 
+def test_multiple_invalid_keys():
+    """Tests wether an InvalidKeyError is thrown for multiple keys."""
+    data = {
+        "test": 1,
+        "test2": "test",
+        "test3": "test",
+    }
+    skel = {
+        "test": None,
+    }
+
+    with pytest.raises(InvalidKeyError) as e_info:
+        merge_with_skeleton(data, skel)
+
+    assert e_info.value.message == "Invalid key(s): test2, test3"
+
+
 def test_single_missing_key():
     """Tests wether a MissingKeyError is correctly thrown for a single key."""
     data = {
@@ -33,3 +51,20 @@ def test_single_missing_key():
         merge_with_skeleton(data, skel)
 
     assert e_info.value.message == "Missing key(s): test2"
+
+
+def test_multiple_missing_keys():
+    """Tests wether a MissingKeyError is correctly thrown for multiple keys."""
+    data = {
+        "test": 1,
+    }
+    skel = {
+        "test": None,
+        "test2": None,
+        "test3": None,
+    }
+
+    with pytest.raises(MissingKeyError) as e_info:
+        merge_with_skeleton(data, skel)
+
+    assert e_info.value.message == "Missing key(s): test2, test3"