Fix some tests (#1573)

## Describe your changes

- Fix some tests.
- Update test failure reason.

## Checklist before requesting a review
- [ ] Add unit tests for this change.
- [ ] Make sure all tests can pass.
- [ ] Update documents if necessary.
- [ ] Lint and apply fixes to your code by running `lintrunner -a`
- [ ] Is this a user-facing change? If yes, give a description of this
change to be included in the release notes.
- [ ] Is this PR including examples changes? If yes, please remember to
update [example
documentation](https://github.com/microsoft/Olive/blob/main/docs/source/examples.md)
in a follow-up PR.

## (Optional) Issue link

test/integ_test/aml_model_test/test_aml_model.py

@@ -2,12 +2,9 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 # --------------------------------------------------------------------------
-import sys
 from pathlib import Path
 from test.integ_test.utils import get_olive_workspace_config
 
-import pytest
-
 from olive.azureml.azureml_client import AzureMLClientConfig
 from olive.model import ModelConfig
 from olive.passes.olive_pass import create_pass_from_dict
@@ -16,7 +13,6 @@ from olive.resource_path import ResourcePath
 from olive.systems.azureml import AzureMLDockerConfig, AzureMLSystem
 
 
-@pytest.mark.skipif(sys.version_info > (3, 8), reason="Failed with Python 3.10, need to investigate.")
 def test_aml_model_pass_run(tmp_path):
     # ------------------------------------------------------------------
     # Azure ML System

test/unit_test/passes/onnx/test_nvmo_quantization.py

@@ -15,7 +15,7 @@ from olive.passes.onnx.nvmo_quantization import NVModelOptQuantization
 
 @pytest.mark.skipif(
     version.parse(onnxruntime.__version__) > version.parse("1.20.1"),
-    reason="Fails on onnxruntime 1.21",
+    reason="ORT 1.21 doesn't support Volta anymore. Reenable this test once we switch to a new SKU.",
 )
 def test_nvmo_quantization(tmp_path):
     ov_model = get_onnx_model()

test/unit_test/systems/isolated_ort/test_isolated_ort_system.py

@@ -4,6 +4,7 @@
 # --------------------------------------------------------------------------
 import json
 import platform
+import re
 import shutil
 import sys
 import venv
@@ -49,11 +50,9 @@ class TestIsolatedORTSystemConfig:
         with pytest.raises(ValueError, match="python_environment_path is required for IsolatedORTSystem"):
             SystemConfig.parse_obj(config)
 
-    # TODO(team): Failed in pipeline (win). Need to investigate.
-    @pytest.mark.skipif(True, reason="Failed in pipeline (win). Need to investigate.")
     def test_invalid_isolated_system_config(self):
         config = {"type": "IsolatedORT", "config": {"python_environment_path": "invalid_path"}}
-        with pytest.raises(ValueError, match=f"Python path {Path('invalid_path').resolve()} does not exist"):
+        with pytest.raises(ValueError, match=re.escape(f"Python path {Path('invalid_path').resolve()} does not exist")):
             SystemConfig.parse_obj(config)