fix string trim

Author: fwoelffel

src/zod-fast-check.ts

@@ -244,7 +244,7 @@ const arbitraryBuilders: ArbitraryBuilders = {
           mappings.push((s) => s + check.value);
           break;
         case "trim":
-          // No special handling needed for inputs.
+          mappings.push((s) => s.trim());
           break;
         case "cuid":
           return createCuidArb();

tests/zod-fast-check.test.ts

@@ -274,7 +274,8 @@ describe("Generate arbitraries for Zod schema output types", () => {
 
     return fc.assert(
       fc.property(arbitrary, (value) => {
-        value.match(/^\s/) === null && value.match(/\s$/) === null;
+        expect(value.match(/^\s/)).toEqual(null);
+        expect(value.match(/\s$/)).toEqual(null);
       })
     );
   });