From cb0e3b3ae33712ad27beffc94fcdbad61d922bd2 Mon Sep 17 00:00:00 2001
From: Melissa DeLucchi <113376043+delucchi-cmu@users.noreply.github.com>
Date: Mon, 15 Sep 2025 12:56:37 -0400
Subject: [PATCH 1/4] Confirm behavior under windows.

---
 .github/workflows/testing-windows.yml | 33 +++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 .github/workflows/testing-windows.yml

diff --git a/.github/workflows/testing-windows.yml b/.github/workflows/testing-windows.yml
new file mode 100644
index 00000000..a9ec58a0
--- /dev/null
+++ b/.github/workflows/testing-windows.yml
@@ -0,0 +1,33 @@
+# This workflow will install Python dependencies and run tests in a Windows environment.
+# This is intended to catch any file-system specific issues, and so runs less
+# frequently than other test suites.
+
+name: Windows unit test
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        python-version: ['3.10']
+
+    steps:
+    - uses: actions/checkout@v5
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -e .[dev]
+    - name: Run unit tests with pytest
+      run: |
+        python -m pytest tests
\ No newline at end of file

From 4962923c5e767f8332b6551eb78401c8d8ca06e4 Mon Sep 17 00:00:00 2001
From: Melissa DeLucchi <113376043+delucchi-cmu@users.noreply.github.com>
Date: Mon, 15 Sep 2025 13:49:19 -0400
Subject: [PATCH 2/4] Try to avoid concurrent access.

---
 tests/nested_pandas/nestedframe/test_io.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tests/nested_pandas/nestedframe/test_io.py b/tests/nested_pandas/nestedframe/test_io.py
index af957fc6..d8088308 100644
--- a/tests/nested_pandas/nestedframe/test_io.py
+++ b/tests/nested_pandas/nestedframe/test_io.py
@@ -302,7 +302,8 @@ def test_read_empty_parquet():
     """Test that we can read empty parquet files"""
     orig_nf = generate_data(1, 2).iloc[:0]
 
-    with tempfile.NamedTemporaryFile("wb", suffix="parquet") as tmpfile:
+    with tempfile.NamedTemporaryFile("wb", suffix=".parquet", delete_on_close=False) as tmpfile:
+        tmpfile.close()
         orig_nf.to_parquet(tmpfile.name)
         # All columns
         # Do not check dtype because of:
@@ -333,7 +334,7 @@ def test_read_parquet_list_autocast():
             "d": [[10, 20, 30], [40, 50, 60], [70, 80, 90]],
         }
     )
-    with tempfile.NamedTemporaryFile("wb", suffix="parquet") as tmpfile:
+    with tempfile.NamedTemporaryFile("wb", suffix=".parquet") as tmpfile:
         list_nf.to_parquet(tmpfile.name)
 
         nf = read_parquet(tmpfile.name, autocast_list=True)

From a8147862667011f9a42718de1007ab0d7d7d626a Mon Sep 17 00:00:00 2001
From: Melissa DeLucchi <113376043+delucchi-cmu@users.noreply.github.com>
Date: Mon, 15 Sep 2025 13:54:39 -0400
Subject: [PATCH 3/4] not 3.12

---
 tests/nested_pandas/nestedframe/test_io.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/nested_pandas/nestedframe/test_io.py b/tests/nested_pandas/nestedframe/test_io.py
index d8088308..5bb87d6d 100644
--- a/tests/nested_pandas/nestedframe/test_io.py
+++ b/tests/nested_pandas/nestedframe/test_io.py
@@ -302,7 +302,7 @@ def test_read_empty_parquet():
     """Test that we can read empty parquet files"""
     orig_nf = generate_data(1, 2).iloc[:0]
 
-    with tempfile.NamedTemporaryFile("wb", suffix=".parquet", delete_on_close=False) as tmpfile:
+    with tempfile.NamedTemporaryFile("wb", suffix=".parquet") as tmpfile:
         tmpfile.close()
         orig_nf.to_parquet(tmpfile.name)
         # All columns

From 15124f3150cc46318f81623f86712bb0465fd448 Mon Sep 17 00:00:00 2001
From: Melissa DeLucchi <113376043+delucchi-cmu@users.noreply.github.com>
Date: Mon, 15 Sep 2025 13:57:46 -0400
Subject: [PATCH 4/4] Close both.

---
 tests/nested_pandas/nestedframe/test_io.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/nested_pandas/nestedframe/test_io.py b/tests/nested_pandas/nestedframe/test_io.py
index 5bb87d6d..24b56103 100644
--- a/tests/nested_pandas/nestedframe/test_io.py
+++ b/tests/nested_pandas/nestedframe/test_io.py
@@ -335,6 +335,7 @@ def test_read_parquet_list_autocast():
         }
     )
     with tempfile.NamedTemporaryFile("wb", suffix=".parquet") as tmpfile:
+        tmpfile.close()
         list_nf.to_parquet(tmpfile.name)
 
         nf = read_parquet(tmpfile.name, autocast_list=True)