[test optimization] jest fix: potentially empty this.loggedReferenceErrors (#6738)

juan-fernandez · web-flow · commit cdbcc2435f8c · 2025-10-24T16:30:46.000+02:00
diff --git a/packages/datadog-instrumentations/src/jest.js b/packages/datadog-instrumentations/src/jest.js
@@ -1335,7 +1335,7 @@ addHook({
       }
       const returnedValue = requireModuleOrMock.apply(this, arguments)
       if (process.exitCode === 1) {
-        if (this.loggedReferenceErrors.size > 0) {
+        if (this.loggedReferenceErrors?.size > 0) {
           const errorMessage = [...this.loggedReferenceErrors][0]
           testSuiteErrorCh.publish({
             errorMessage,

Original file line number	Diff line number	Diff line change
`@@ -1335,7 +1335,7 @@ addHook({`
`1335`	`1335`	`}`
`1336`	`1336`	`const returnedValue = requireModuleOrMock.apply(this, arguments)`
`1337`	`1337`	`if (process.exitCode === 1) {`
`1338`		`- if (this.loggedReferenceErrors.size > 0) {`
	`1338`	`+ if (this.loggedReferenceErrors?.size > 0) {`
`1339`	`1339`	`const errorMessage = [...this.loggedReferenceErrors][0]`
`1340`	`1340`	`testSuiteErrorCh.publish({`
`1341`	`1341`	`errorMessage,`