diff --git a/src/BitLogger_test.mbt b/src/BitLogger_test.mbt
index 6311c38..b107327 100644
--- a/src/BitLogger_test.mbt
+++ b/src/BitLogger_test.mbt
@@ -478,6 +478,159 @@ test "runtime sink plain variants use documented fallback counts" {
   }
 }
 
+test "runtime sink non-file variants expose documented file fallbacks" {
+  let sink = RuntimeSink::Console(console_sink())
+  inspect(sink.file_available(), content="false")
+  inspect(sink.file_path(), content="")
+  inspect(sink.file_append_mode(), content="false")
+  inspect(sink.file_auto_flush(), content="false")
+  inspect(sink.file_rotation_enabled(), content="false")
+  inspect(sink.file_rotation_config() is None, content="true")
+  inspect(sink.file_open_failures(), content="0")
+  inspect(sink.file_write_failures(), content="0")
+  inspect(sink.file_flush_failures(), content="0")
+  inspect(sink.file_rotation_failures(), content="0")
+  inspect(sink.file_reopen(), content="false")
+  inspect(sink.file_reopen_with_current_policy(), content="false")
+  inspect(sink.file_reopen_append(), content="false")
+  inspect(sink.file_reopen_truncate(), content="false")
+  inspect(sink.file_set_append_mode(true), content="false")
+  inspect(sink.file_set_auto_flush(true), content="false")
+  inspect(sink.file_set_rotation(Some(file_rotation(32, max_backups=2))), content="false")
+  inspect(sink.file_clear_rotation(), content="false")
+  inspect(sink.file_set_policy(FileSinkPolicy::new()), content="false")
+  inspect(sink.file_reset_failure_counters(), content="false")
+  inspect(sink.file_reset_policy(), content="false")
+  inspect(sink.file_flush(), content="false")
+  inspect(sink.file_close(), content="false")
+  let policy = sink.file_policy()
+  let defaults = sink.file_default_policy()
+  let state = sink.file_state()
+  inspect(policy.append, content="false")
+  inspect(policy.auto_flush, content="false")
+  inspect(policy.rotation is None, content="true")
+  inspect(defaults.append, content="false")
+  inspect(defaults.auto_flush, content="false")
+  inspect(defaults.rotation is None, content="true")
+  inspect(sink.file_policy_matches_default(), content="false")
+  inspect(state.path, content="")
+  inspect(state.available, content="false")
+  inspect(state.append, content="false")
+  inspect(state.auto_flush, content="false")
+  inspect(state.rotation is None, content="true")
+  inspect(state.open_failures, content="0")
+  inspect(state.write_failures, content="0")
+  inspect(state.flush_failures, content="0")
+  inspect(state.rotation_failures, content="0")
+  inspect(sink.file_runtime_state() is None, content="true")
+}
+
+test "runtime sink plain file helpers expose direct file state and policy" {
+  let sink = RuntimeSink::File(
+    file_sink(
+      "runtime-file-helpers.log",
+      auto_flush=false,
+      rotation=Some(file_rotation(40, max_backups=2)),
+    ),
+  )
+  inspect(sink.file_available() == native_files_supported(), content="true")
+  inspect(sink.file_path(), content="runtime-file-helpers.log")
+  inspect(sink.file_append_mode(), content="true")
+  inspect(sink.file_auto_flush(), content="false")
+  inspect(sink.file_rotation_enabled(), content="true")
+  let defaults = sink.file_default_policy()
+  let policy = sink.file_policy()
+  inspect(defaults.append, content="true")
+  inspect(defaults.auto_flush, content="false")
+  inspect(policy.append, content="true")
+  inspect(policy.auto_flush, content="false")
+  inspect(sink.file_policy_matches_default(), content="true")
+  match sink.file_rotation_config() {
+    Some(rotation) => {
+      inspect(rotation.max_bytes, content="40")
+      inspect(rotation.max_backups, content="2")
+    }
+    None => inspect(false, content="true")
+  }
+  let state = sink.file_state()
+  inspect(state.path, content="runtime-file-helpers.log")
+  inspect(state.available == sink.file_available(), content="true")
+  inspect(state.append, content="true")
+  inspect(state.auto_flush, content="false")
+  match sink.file_runtime_state() {
+    Some(snapshot) => {
+      inspect(snapshot.queued, content="false")
+      inspect(snapshot.pending_count, content="0")
+      inspect(snapshot.dropped_count, content="0")
+      inspect(snapshot.file.path, content="runtime-file-helpers.log")
+    }
+    None => inspect(false, content="true")
+  }
+  inspect(sink.file_set_append_mode(false), content="true")
+  inspect(sink.file_set_auto_flush(true), content="true")
+  inspect(sink.file_clear_rotation(), content="true")
+  inspect(sink.file_policy_matches_default(), content="false")
+  inspect(sink.file_append_mode(), content="false")
+  inspect(sink.file_auto_flush(), content="true")
+  inspect(sink.file_rotation_config() is None, content="true")
+  inspect(sink.file_reset_policy(), content="true")
+  inspect(sink.file_policy_matches_default(), content="true")
+  inspect(sink.file_append_mode(), content="true")
+  inspect(sink.file_auto_flush(), content="false")
+  inspect(sink.file_rotation_enabled(), content="true")
+  if sink.file_available() {
+    inspect(sink.file_flush(), content="true")
+    inspect(sink.file_close(), content="true")
+  } else {
+    inspect(sink.file_flush(), content="false")
+    inspect(sink.file_close(), content="false")
+  }
+}
+
+test "runtime sink queued file helpers preserve queue-aware file runtime state" {
+  let sink = RuntimeSink::QueuedFile(
+    queued_sink(
+      file_sink("runtime-queued-file.log", auto_flush=false),
+      max_pending=2,
+      overflow=QueueOverflowPolicy::DropNewest,
+    ),
+  )
+  let logger = Logger::new(sink, min_level=Level::Info, target="runtime.file.queue")
+  logger.info("one")
+  logger.info("two")
+  logger.info("three")
+  inspect(sink.file_available() == native_files_supported(), content="true")
+  inspect(sink.file_path(), content="runtime-queued-file.log")
+  inspect(sink.pending_count(), content="2")
+  inspect(sink.dropped_count(), content="1")
+  match sink.file_runtime_state() {
+    Some(snapshot) => {
+      inspect(snapshot.queued, content="true")
+      inspect(snapshot.pending_count, content="2")
+      inspect(snapshot.dropped_count, content="1")
+      inspect(snapshot.file.path, content="runtime-queued-file.log")
+    }
+    None => inspect(false, content="true")
+  }
+  if sink.file_available() {
+    inspect(sink.file_flush(), content="true")
+    inspect(sink.pending_count(), content="0")
+    match sink.file_runtime_state() {
+      Some(snapshot) => inspect(snapshot.pending_count, content="0")
+      None => inspect(false, content="true")
+    }
+    inspect(sink.file_close(), content="true")
+  } else {
+    inspect(sink.file_flush(), content="false")
+    inspect(sink.pending_count(), content="0")
+    match sink.file_runtime_state() {
+      Some(snapshot) => inspect(snapshot.pending_count, content="0")
+      None => inspect(false, content="true")
+    }
+    inspect(sink.file_close(), content="false")
+  }
+}
+
 test "configured logger exposes file sink observability helpers" {
   let logger = build_logger(
     LoggerConfig::new(