fix(xanthous): Fix display of square/cubic units r/2684

Previously this'd display `5 m m³`, because it'd show the underlying
value then add the unit suffix on at the end

Change-Id: Idd240ddfebc212460f9fb529eff72732a5dafe2a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3241
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI

1 files changed, 5 insertions, 2 deletions

diff --git a/users/grfn/xanthous/test/Xanthous/DataSpec.hs b/users/grfn/xanthous/test/Xanthous/DataSpec.hs
index 1aa250b1a4..9e67505ba9 100644
--- a/users/grfn/xanthous/test/Xanthous/DataSpec.hs
+++ b/users/grfn/xanthous/test/Xanthous/DataSpec.hs
@@ -99,8 +99,11 @@ test = testGroup "Xanthous.Data"
   , testGroup "units"
     [ testGroup "unit suffixes"
       [ testCase "density"
-        $ tshow (10000 :: Grams `Per` Cubic Meters)
-          @?= "10000.0 g/m³"
+        $ tshow (10000 :: Grams `Per` Cubic Meters) @?= "10000.0 g/m³"
+      , testCase "volume"
+        $ tshow (5 :: Cubic Meters) @?= "5.0 m³"
+      , testCase "area"
+        $ tshow (5 :: Square Meters) @?= "5.0 m²"
       ]
     ]
   ]