🧛‍♂️ Check for undefined event parameter (#584)

* check for undefined event parameter closes #583 * Update waffle-chai/src/matchers/emit.ts Co-authored-by: Przemyslaw Rzad <roopert7@gmail.com>
TrueFiEng · Mar 25, 2022 · 0719f14 · 0719f14
1 parent 7992daf
commit 0719f14
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/waffle-chai/src/matchers/emit.ts b/waffle-chai/src/matchers/emit.ts
@@ -61,7 +61,7 @@ export function supportEmit(Assertion: Chai.AssertionStatic) {
       actualArgs.length
     );
     for (let index = 0; index < expectedArgs.length; index++) {
-      if (expectedArgs[index].length !== undefined && typeof expectedArgs[index] !== 'string') {
+      if (expectedArgs[index]?.length !== undefined && typeof expectedArgs[index] !== 'string') {
         for (let j = 0; j < expectedArgs[index].length; j++) {
           new Assertion(actualArgs[index][j]).equal(expectedArgs[index][j]);
         }