test: adds github action

Author: william-silversmith

.github/workflows/build_wheel.yml

@@ -0,0 +1,38 @@
+name: Build Wheels
+
+on:  
+  push:
+    tags:
+      - '*'
+env:
+  CIBW_SKIP: cp27-* cp33-* cp34-* cp35-* pp27* pp36* pp37*
+
+jobs:
+  build_wheels:
+    name: Build wheels on ${{matrix.arch}} for ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04, windows-2019, macos-latest]
+        arch: [auto]
+        include:
+          - os: ubuntu-20.04
+            arch: aarch64
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up QEMU
+        if:  ${{ matrix.arch == 'aarch64' }}
+        uses: docker/setup-qemu-action@v1
+
+      - name: Build wheels
+        uses: joerick/cibuildwheel@v1.10.0
+        # to supply options, put them in 'env', like:
+        env:
+          CIBW_ARCHS_LINUX: ${{matrix.arch}}
+          CIBW_BEFORE_BUILD: pip install oldest-supported-numpy
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./wheelhouse/*.whl

automated_test.py

@@ -1,8 +1,12 @@
 import pytest
+
+import mmap
+import os
+import random
+
 import numpy as np
+
 from mapbuffer import MapBuffer, HEADER_LENGTH
-import random
-import mmap
 
 @pytest.mark.parametrize("compress", (None, "gzip", "br", "zstd", "lzma"))
 def test_empty(compress):
@@ -68,6 +72,8 @@ def test_mmap_access(compress):
     assert mb[1] == b"hello"
     assert mb[2] == b"world"
 
+  os.remove("test_mmap.mb")
+
 @pytest.mark.parametrize("compress", (None, "gzip", "br", "zstd"))
 def test_object_access(compress):
   data = {