diff --git a/platform/testFramework/junit5/src/fixture/TestFixtureExtension.kt b/platform/testFramework/junit5/src/fixture/TestFixtureExtension.kt
index 66f9aec5278a..f4461978e6b1 100644
--- a/platform/testFramework/junit5/src/fixture/TestFixtureExtension.kt
+++ b/platform/testFramework/junit5/src/fixture/TestFixtureExtension.kt
@@ -40,10 +40,7 @@ internal class TestFixtureExtension : BeforeAllCallback,
       val fixture = field.get(testInstance) as TestFixtureImpl<*>
       pendingFixtures.add(fixture.init(testScope, context.uniqueId))
     }
-    @Suppress("SSBasedInspection")
-    runBlocking {
-      pendingFixtures.awaitAll()
-    }
+    awaitFixtureInitialization(testScope, pendingFixtures)
     context.getStore(ExtensionContext.Namespace.GLOBAL).put("TestFixtureExtension", testScope)
   }
 
@@ -63,3 +60,21 @@ internal class TestFixtureExtension : BeforeAllCallback,
     }
   }
 }
+
+private fun awaitFixtureInitialization(cleanupScope: CoroutineScope, pendingFixtures: List<Deferred<*>>) {
+  @Suppress("SSBasedInspection")
+  runBlocking {
+    try {
+      pendingFixtures.awaitAll()
+    }
+    catch (e: Throwable) {
+      try {
+        cleanupScope.coroutineContext.job.cancelAndJoin()
+      }
+      catch (exceptionDuringCleanup: Throwable) {
+        e.addSuppressed(Throwable("Exception during cleanup of test fixture", exceptionDuringCleanup))
+      }
+      throw e
+    }
+  }
+}
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