From dfaf18928ab585d99be3bfd605f67beb862a2756 Mon Sep 17 00:00:00 2001
From: Changming Sun <chasun@microsoft.com>
Date: Mon, 15 Jul 2024 10:47:02 -0700
Subject: [PATCH] Fix a path problem in onnxruntime_perf_test (#21341)

### Description
Resolve #21267 . onnxruntime_perf_test does not work properly if the
input model path url is just a single filename without any path
separator. For example,

```
./onnxruntime_perf_test -t 10 model.onnx
```

The problem was introduced in #19196 by me.
---
 onnxruntime/test/onnx/TestCase.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/onnxruntime/test/onnx/TestCase.h b/onnxruntime/test/onnx/TestCase.h
index 0cb92056d3..745a1fe9ee 100644
--- a/onnxruntime/test/onnx/TestCase.h
+++ b/onnxruntime/test/onnx/TestCase.h
@@ -53,7 +53,8 @@ class TestModelInfo {
  public:
   virtual const std::filesystem::path& GetModelUrl() const = 0;
   virtual std::filesystem::path GetDir() const {
-    return GetModelUrl().parent_path();
+    const auto& p = GetModelUrl();
+    return p.has_parent_path() ? p.parent_path() : std::filesystem::current_path();
   }
   virtual const std::string& GetNodeName() const = 0;
   virtual const ONNX_NAMESPACE::ValueInfoProto* GetInputInfoFromModel(size_t i) const = 0;