diff --git a/util/MockConductor.ts b/util/MockConductor.ts
index a603dd2..c1d79aa 100644
--- a/util/MockConductor.ts
+++ b/util/MockConductor.ts
@@ -1,6 +1,6 @@
 import { setupToolboxTester, TestContext } from '../src'
 import { TestConductor } from '../src/conductor/TestConductor'
-import { TestReporter } from '../src/conductor/TestReporter'
+import { TestCompleteData, TestErrorData, TestReporter, TestResultData, TestScheduleData } from '../src/conductor/TestReporter'
 import { TestHookType } from '../src/conductor/TestRun'
 import { FsWatcher } from '../src/files/FsWatcher'
 import { TestRunner } from '../src/runner'
@@ -89,10 +89,10 @@ export class MockConductor extends TestConductor {
             const ctx = {}
             new TestRunner(
                 {
-                    schedule: async d => reporter.schedule(d),
-                    result: async d => reporter.result(d),
-                    error: async d => reporter.error(d),
-                    complete: async d => reporter.complete(d),
+                    schedule: async d => this.tryReport(reporter, 'schedule', d),
+                    result: async d => this.tryReport(reporter, 'result', d),
+                    error: async d => this.tryReport(reporter, 'error', d),
+                    complete: async d => this.tryReport(reporter, 'complete', d),
                 },
                 undefined,
                 ctx,
@@ -144,6 +144,18 @@ export class MockConductor extends TestConductor {
             ctx[hook](f as () => void)
         })
     }
+
+    protected tryReport<K extends 'schedule'|'result'|'error'|'complete'>(
+        reporter: TestReporter,
+        key: K,
+        data: Parameters<TestReporter[K]>[0],
+    ) {
+        try {
+            reporter[key](data as (TestScheduleData & TestResultData & TestErrorData & TestCompleteData))
+        } catch {
+            return
+        }
+    }
 }
 
 export const results: MockResults = {