diff --git a/lib/pyarrow_arm/build_and_test.sh b/lib/pyarrow_arm/build_and_test.sh
new file mode 100644
index 0000000..e4f174c
--- /dev/null
+++ b/lib/pyarrow_arm/build_and_test.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+docker build . --tag=pyarrowbuild:latest
+
+docker run -it pyarrowbuild:latest /bin/bash
diff --git a/lib/pyarrow_arm/pyarrow_test.py b/lib/pyarrow_arm/pyarrow_test.py
index 233eb69..798dff9 100644
--- a/lib/pyarrow_arm/pyarrow_test.py
+++ b/lib/pyarrow_arm/pyarrow_test.py
@@ -10,8 +10,8 @@ print(tb)
 
 parquetfile = 'pressureVacuum.parquet'
 
-pq.write_table(tb,parquetfile,compression='SNAPPY')
-#  {‘NONE’, ‘SNAPPY’, ‘GZIP’, ‘LZO’, ‘BROTLI’, ‘LZ4’, ‘ZSTD’}
+pq.write_table(tb,parquetfile,compression='BROTLI')
+#  {'NONE', 'SNAPPY', 'GZIP', 'LZO', 'BROTLI', 'LZ4', 'ZSTD'}
 
 df = pq.read_table(parquetfile,columns=None)