Mark WilkensXL build versions

tests/test_version_metadata.py

@@ -0,0 +1,11 @@
+"""Tests for WilkensXL build metadata."""
+
+from src.constants import APP_VERSION, BUILD_FLAVOR, BUILD_VERSION, FULL_VERSION, UPSTREAM_VERSION
+
+
+def test_custom_build_version_is_distinct_from_upstream_version():
+    assert APP_VERSION == "1.0.1"
+    assert UPSTREAM_VERSION == APP_VERSION
+    assert BUILD_FLAVOR == "wilkensxl"
+    assert BUILD_VERSION.startswith(f"{APP_VERSION}-wilkensxl.")
+    assert FULL_VERSION == BUILD_VERSION