Drop extension for bash script.

test/test

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+# TODO: exit with non-zero status code when tests fail.
+
+
+# Clean up.
+rm -f *.actual
+
+# Execute the tests.
+for testcase in test*.vim; do
+  vim -N -u NONE -S $testcase -c 'quit!'
+done
+
+# Verify the results.
+count_ok=0
+count_fail=0
+
+for expected in *.expected; do
+  name=${expected%.*}
+  actual=$name.actual
+
+  if diff $expected $actual; then
+    count_ok=$((count_ok + 1))
+    echo "$name ok"
+  else
+    count_fail=$((count_fail + 1))
+    echo "$name failed"
+  fi
+done
+
+# Clean up.
+git reset HEAD fixture.txt > /dev/null
+git checkout fixture.txt
+# rm -f *.actual
+
+# Print results.
+echo
+echo "$((count_ok + count_fail)) tests"
+echo "$count_ok ok"
+echo "$count_fail failed"
+