tracks/pony/exercises/hamming/test.pony in trackler-2.2.1.6 vs tracks/pony/exercises/hamming/test.pony in trackler-2.2.1.7

@@ -9,18 +9,18 @@
 
 class iso _TestHammingDistance is UnitTest
   fun name(): String => "hamming/HammingDistance"
 
   fun apply(h: TestHelper) ? =>
-    h.assert_eq[USize](0, HammingDistance("A", "A"))
-    h.assert_eq[USize](0, HammingDistance("GGACTGA", "GGACTGA"))
-    h.assert_eq[USize](1, HammingDistance("A", "G"))
-    h.assert_eq[USize](2, HammingDistance("AG", "CT"))
-    h.assert_eq[USize](1, HammingDistance("AT", "CT"))
-    h.assert_eq[USize](1, HammingDistance("GGACG", "GGTCG"))
-    h.assert_eq[USize](2, HammingDistance("ACCAGGG", "ACTATGG"))
-    h.assert_eq[USize](1, HammingDistance("AGG", "AGA"))
-    h.assert_eq[USize](4, HammingDistance("GATACA", "GCATAA"))
-    h.assert_eq[USize](9, HammingDistance("GGACGGATTCTG", "AGGACGGATTCT"))
+    h.assert_eq[USize](0, HammingDistance("A", "A")?)
+    h.assert_eq[USize](0, HammingDistance("GGACTGA", "GGACTGA")?)
+    h.assert_eq[USize](1, HammingDistance("A", "G")?)
+    h.assert_eq[USize](2, HammingDistance("AG", "CT")?)
+    h.assert_eq[USize](1, HammingDistance("AT", "CT")?)
+    h.assert_eq[USize](1, HammingDistance("GGACG", "GGTCG")?)
+    h.assert_eq[USize](2, HammingDistance("ACCAGGG", "ACTATGG")?)
+    h.assert_eq[USize](1, HammingDistance("AGG", "AGA")?)
+    h.assert_eq[USize](4, HammingDistance("GATACA", "GCATAA")?)
+    h.assert_eq[USize](9, HammingDistance("GGACGGATTCTG", "AGGACGGATTCT")?)
 
-    h.assert_error({()? => HammingDistance("GAT", "GA")})
-    h.assert_error({()? => HammingDistance("GA", "GAC")})
+    h.assert_error({()? => HammingDistance("GAT", "GA")?})
+    h.assert_error({()? => HammingDistance("GA", "GAC")?})