fix tests

Author: rmorshea

src/idom/_option.py

@@ -107,7 +107,11 @@ def unset(self) -> None:
         """Remove the current value, the default will be used until it is set again."""
         if not self._mutable:
             raise TypeError(f"{self} cannot be modified after initial load")
+        old = self.current
         delattr(self, "_current")
+        if self.current != old:
+            for sub_func in self._subscribers:
+                sub_func(self.current)
 
     def __repr__(self) -> str:
         return f"Option({self._name}={self.current!r})"

tests/test__option.py

@@ -96,3 +96,6 @@ def test_option_subscribe():
     opt.current = "new-1"
     opt.current = "new-2"
     assert calls == ["default", "new-1", "new-2"]
+
+    opt.unset()
+    assert calls == ["default", "new-1", "new-2", "default"]

tests/test_config.py

@@ -1,7 +1,29 @@
-from idom.config import IDOM_DEBUG_MODE
+import pytest
+
+from idom import config
+from idom._option import Option
+
+
+@pytest.fixture(autouse=True)
+def reset_options():
+    options = [value for value in config.__dict__.values() if isinstance(value, Option)]
+
+    should_unset = object()
+    original_values = []
+    for opt in options:
+        original_values.append(opt.current if opt.is_set() else should_unset)
+
+    yield
+
+    for opt, val in zip(options, original_values):
+        if val is should_unset:
+            if opt.is_set():
+                opt.unset()
+        else:
+            opt.current = val
 
 
 def test_idom_debug_mode_toggle():
     # just check that nothing breaks
-    IDOM_DEBUG_MODE.current = True
-    IDOM_DEBUG_MODE.current = False
+    config.IDOM_DEBUG_MODE.current = True
+    config.IDOM_DEBUG_MODE.current = False