Initial commit

tests/unit/test_charm.py

@@ -0,0 +1,29 @@
+# Copyright 2026 Valentin Haudiquet
+# See LICENSE file for licensing details.
+#
+# To learn more about testing, see https://documentation.ubuntu.com/ops/latest/explanation/testing/
+
+import pytest
+from ops import testing
+
+from charm import CharmedServerCharm
+
+
+def mock_get_version():
+    """Get a mock version string without executing the workload code."""
+    return "1.0.0"
+
+
+def test_start(monkeypatch: pytest.MonkeyPatch):
+    """Test that the charm has the correct state after handling the start event."""
+    # Arrange:
+    ctx = testing.Context(CharmedServerCharm)
+    monkeypatch.setattr("charm.charmed_server.get_version", mock_get_version)
+    monkeypatch.setattr("charm.charmed_server.is_installed", lambda: True)
+    monkeypatch.setattr("charm.charmed_server.ensure_config", lambda: False)
+    monkeypatch.setattr("charm.charmed_server.is_running", lambda: True)
+    # Act:
+    state_out = ctx.run(ctx.on.start(), testing.State())
+    # Assert:
+    assert state_out.workload_version is not None
+    assert state_out.unit_status == testing.ActiveStatus()