Check number before parsing

e2e/specs/parameters.spec

@@ -7,3 +7,4 @@
 ## Custom Parameters in steps
 
 * This step uses a custom parameter of type Person and value "{\"name\":\"John\",\"age\":30}"
+* This step checks if strings with numbers for example "3 % 4" is correct

e2e/tests/parameter.ts

@@ -14,4 +14,10 @@ export default class Parameter {
     assert.strictEqual(person.age, 30);
     assert.ok(person.isAdult());
   }
+  @Step(
+    "This step checks if strings with numbers for example <value> is correct",
+  )
+  async setFilter(value: string) {
+    assert.strictEqual(value, "3 % 4");
+  }
 }

gauge-ts/src/processors/params/PrimitiveParser.ts

@@ -27,8 +27,12 @@ export class PrimitiveParser implements ParameterParser {
   }
 
   private convertToNumber(value: string): number | undefined {
-    const num = Number.parseFloat(value);
-    return Number.isNaN(num) ? undefined : num;
+    const trimmedValue = value.trim();
+    if (/^-?\d+(\.\d+)?$/.test(trimmedValue)) {
+      const num = Number.parseFloat(trimmedValue);
+      return Number.isFinite(num) ? num : undefined;
+    }
+    return undefined;
   }
 
   private convertToBoolean(value: string): boolean | undefined {