Improve coverage

polytypic · polytypic · commit be7d7e449bb3 · 2018-11-12T22:34:29.000+02:00
diff --git a/test/tests.js b/test/tests.js
@@ -2420,6 +2420,10 @@ describe('L.patterns', () => {
 })
 
 describe('L.mapping', () => {
+  testEq(
+    () => L.get(L.mapping((x, y) => [x, L.orP([y], [...L._, y], {y})]), 'any'),
+    undefined
+  )
   testEq(
     () =>
       L.get(
