test: more robust version check for tools (black)

[loctrkd.git] / test / __init__.py

diff --git a/test/__init__.py b/test/__init__.py
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..b4ddd2ef7a79ad3ad2d8a11ddbc5f5e4285456a4 100644 (file)
--- a/test/__init__.py
+++ b/test/__init__.py
@@ -0,0 +1,25 @@
+from typing import Callable, Tuple
+
+
+__all__ = ("no_less_than",)
+
+
+def no_less_than(base: str) -> Callable[[str], bool]:
+    def _no_less_than(base: str, what: str) -> bool:
+        bl, wl = (
+            tuple((int(el) for el in s.split("."))) for s in (base, what)
+        )
+
+        def __no_less_than(bl: Tuple[int, ...], wl: Tuple[int, ...]) -> bool:
+            if len(bl) == 0 and len(wl) == 0:
+                return True
+            if (len(bl) == 0) != (len(wl) == 0):
+                return len(bl) < len(wl)
+            # At this point both lists are non-empty
+            if bl[0] == wl[0]:
+                return __no_less_than(bl[1:], wl[1:])
+            return bl[0] < wl[0]
+
+        return __no_less_than(bl, wl)
+
+    return lambda arg: _no_less_than(base, arg)