diff --git a/tests/queries/008-nulls.sql b/tests/queries/008-nulls.sql
new file mode 100644
index 0000000..7f58a56
--- /dev/null
+++ b/tests/queries/008-nulls.sql
@@ -0,0 +1,3 @@
+100-rows-nulls.parquet
+SELECT SUM(CASE WHEN bool_0 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN int8_1 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN int16_2 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN int32_3 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN int64_4 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN ts_5 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN double_6 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN string_7 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN string_8 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN binary_9 IS NULL THEN 1 ELSE 0 END), SUM(CASE WHEN fixed_size_binary IS NULL THEN 1 ELSE 0 END) from test;
+50|50|50|50|50|50|50|50|50|50|50
diff --git a/tests/test-supported b/tests/test-supported
index 759fda0..0333844 100755
--- a/tests/test-supported
+++ b/tests/test-supported
@@ -26,7 +26,7 @@ main() {
   supported_files=$(find . -type f -name '*.parquet' -not -name 'unsupported*.parquet')
   while read -r supported; do
     echo "Testing: $supported"
-    if ! "$root"/sqlite/sqlite3 -init <(load_supported "$supported") < /dev/null > /dev/null 2> testcase-err.txt; then
+    if ! "$root"/sqlite/sqlite3 -init <(load_supported "$supported") < /dev/null > /dev/null 2> testcase-stderr.txt; then
       echo "...FAILED; check testcase-{out,err}.txt" >&2
       exit 1
     fi
diff --git a/tests/test-unsupported b/tests/test-unsupported
index e5734ef..57d7ec4 100755
--- a/tests/test-unsupported
+++ b/tests/test-unsupported
@@ -25,7 +25,7 @@ main() {
   unsupported_files=$(find . -type f -name 'unsupported*.parquet')
   while read -r unsupported; do
     echo "Testing: $unsupported"
-    "$root"/sqlite/sqlite3 -init <(load_unsupported "$unsupported") < /dev/null > /dev/null 2> testcase-err.txt
+    "$root"/sqlite/sqlite3 -init <(load_unsupported "$unsupported") < /dev/null > /dev/null 2> testcase-stderr.txt
     # We expect the 'SELECT 123' command to NOT have been run
     if grep -q 123 testcase-out.txt; then
       echo "...FAILED; expected an error message. Check testcase-{out,err}.txt" >&2