aboutsummaryrefslogtreecommitdiffstats
path: root/tests/test_Selective.hs
diff options
context:
space:
mode:
Diffstat (limited to 'tests/test_Selective.hs')
-rw-r--r--tests/test_Selective.hs17
1 files changed, 9 insertions, 8 deletions
diff --git a/tests/test_Selective.hs b/tests/test_Selective.hs
index 790ce14..4de4632 100644
--- a/tests/test_Selective.hs
+++ b/tests/test_Selective.hs
@@ -28,13 +28,11 @@ arbPos = (+1) . abs <$> arbitrary
-- (when the selection is normalized)
prop_select_length sel (stk :: Stack Int) =
(length . integrate $ select sel' stk) == ((nMaster sel' + nRest sel') `min` length (integrate stk))
- where
- sel' = update sel stk
+ where sel' = update sel stk
-- update normalizes selections (is idempotent)
prop_update_idem sel (stk :: Stack Int) = sel' == update sel' stk
- where
- sel' = update sel stk
+ where sel' = update sel stk
-- select selects the master pane
prop_select_master sel (stk :: Stack Int) =
@@ -42,8 +40,7 @@ prop_select_master sel (stk :: Stack Int) =
-- the focus should always be selected in normalized selections
prop_select_focus sel (stk :: Stack Int) = focus stk == (focus $ select sel' stk)
- where
- sel' = update sel stk
+ where sel' = update sel stk
-- select doesn't change order (or duplicate elements)
-- relies on the Arbitrary instance for Stack Int generating increasing stacks
@@ -51,6 +48,12 @@ prop_select_increasing sel (stk :: Stack Int) =
let res = integrate $ select sel stk
in and . zipWith (<) res $ tail res
+-- update preserves invariants on selections
+prop_update_nm sel (stk :: Stack Int) = nMaster (update sel stk) >= 0
+prop_update_start sel (stk :: Stack Int) = nMaster sel' <= start sel'
+ where sel' = update sel stk
+prop_update_nr sel (stk :: Stack Int) = nRest (update sel stk) >= 0
+
-- moving the focus to a window that's already selected doesn't change the selection
prop_update_focus_up sel (stk :: Stack Int) x' =
(length (up stk) >= x) && ((up stk !! (x-1)) `elem` integrate stk') ==>
@@ -68,7 +71,5 @@ prop_update_focus_down sel (stk :: Stack Int) x' =
sel' = update sel stk
stk' = select sel' stk
-upSel sel stk = let sel' = update sel stk in (sel', select sel' stk)
-
focusUp stk = stk { up=tail (up stk), focus=head (up stk), down=focus stk:down stk }
focusDown stk = stk { down=tail (down stk), focus=head (down stk), up=focus stk:up stk }