From 10102c09b67a1f1dd71e035a768fdeb86a1e85f2 Mon Sep 17 00:00:00 2001
From: Ryan Lai <rylai@microsoft.com>
Date: Mon, 5 Apr 2021 14:59:19 -0700
Subject: [PATCH] Add better model test error messaging (#7239)

---
 winml/test/model/model_tests.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/winml/test/model/model_tests.cpp b/winml/test/model/model_tests.cpp
index 0576c328be..74bc3052b3 100644
--- a/winml/test/model/model_tests.cpp
+++ b/winml/test/model/model_tests.cpp
@@ -143,6 +143,10 @@ std::string GetTestDataPath() {
     auto hardcodedModelPath = parentPath.string() + "\\models";
     if (std::filesystem::exists(hardcodedModelPath) && hardcodedModelPath.length() <= MAX_PATH) {
       return hardcodedModelPath;
+    } else {
+      std::string errorStr = "WINML_TEST_DATA_PATH environment variable path not found and \"models\" folder not found in same directory as test exe.\n";
+      std::cerr << errorStr;
+      throw std::exception(errorStr.c_str());
     }
   }
   const std::string testDataPathFolderName = "\\testData\\";