feat: Add an Oracle base class

tests/test_oracle_base.py

@@ -0,0 +1,57 @@
+# SPDX-FileCopyrightText: 2025 2025
+# SPDX-FileContributor: Gergely Polonkai
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Tests for the base Oracle class"""
+
+from typing import Literal
+
+import pytest
+
+from gm_assistant.oracle.base import Oracle
+
+TEST_ORACLE_DATA = {
+    "type": "test-oracle",
+    "name": "Test Oracle",
+    "source": "Test Source",
+}
+
+
+class OracleTest(Oracle):
+    """Test Oracle class"""
+
+    TYPE_MARKER = "test-oracle"
+
+    def generate(self) -> str:  # pragma: no cover
+        return "Something"
+
+
+@pytest.mark.parametrize("missing", ["type", "name", "source"])
+def test_missing_data(missing: Literal["type", "name", "source"]) -> None:
+    """Test if oracle_data doesn’t have a type"""
+
+    oracle_data = TEST_ORACLE_DATA.copy()
+    del oracle_data[missing]
+
+    with pytest.raises(KeyError):
+        OracleTest(oracle_data)
+
+
+def test_incorrect_type() -> None:
+    """Test if the type in the oracle data doesn’t match the class’ TYPE_MARKER"""
+
+    oracle_data = TEST_ORACLE_DATA.copy()
+    oracle_data["type"] = "something-else"
+
+    with pytest.raises(TypeError):
+        OracleTest(oracle_data)
+
+
+def test_init() -> None:
+    """Test if initialisation succeeds with valid data"""
+
+    oracle = OracleTest(TEST_ORACLE_DATA)
+
+    assert oracle.name == "Test Oracle"
+    assert oracle.source == "Test Source"
+    assert oracle.source_url is None