diff --git a/app/src/test/java/org/mozilla/fenix/components/metrics/BreadcrumbRecorderTest.kt b/app/src/test/java/org/mozilla/fenix/components/metrics/BreadcrumbRecorderTest.kt
index 1c915f57d..dbb63ba38 100644
--- a/app/src/test/java/org/mozilla/fenix/components/metrics/BreadcrumbRecorderTest.kt
+++ b/app/src/test/java/org/mozilla/fenix/components/metrics/BreadcrumbRecorderTest.kt
@@ -19,14 +19,9 @@ internal class BreadcrumbRecorderTest {
     @Test
     fun `ensure crash reporter recordCrashBreadcrumb is called`() {
         val service = object : CrashReporterService {
-            override fun report(throwable: Throwable) {
-            }
-
-            override fun report(crash: Crash.UncaughtExceptionCrash) {
-            }
-
-            override fun report(crash: Crash.NativeCodeCrash) {
-            }
+            override fun report(throwable: Throwable): String? = ""
+            override fun report(crash: Crash.NativeCodeCrash): String? = ""
+            override fun report(crash: Crash.UncaughtExceptionCrash): String? = ""
         }
 
         val reporter = spy(