1 files changed, 51 insertions, 0 deletions
diff --git a/test/test_contextual.py b/test/test_contextual.py
new file mode 100755
index 00000000..6a584c5b
--- /dev/null
+++ b/test/test_contextual.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+
+# Copyright 2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: ISC
+
+"""Test writing with -O contextual (SERD_WRITE_CONTEXTUAL)."""
+
+# pylint: disable=consider-using-f-string
+
+import argparse
+import sys
+import shlex
+import subprocess
+import tempfile
+
+parser = argparse.ArgumentParser(description=__doc__)
+
+parser.add_argument("--tool", default="tools/serd-pipe", help="executable")
+parser.add_argument("--wrapper", default="", help="executable wrapper")
+parser.add_argument("input", default="", help="input file")
+
+args = parser.parse_args(sys.argv[1:])
+command = shlex.split(args.wrapper) + [
+    args.tool,
+    "-O",
+    "turtle",
+    "-O",
+    "contextual",
+    args.input,
+]
+
+DOC = "<{0}s> <{0}p> <{0}o> .".format("http://example.org/")
+
+with tempfile.TemporaryFile() as out:
+    proc = subprocess.run(
+        command,
+        check=False,
+        encoding="utf-8",
+        input=DOC,
+        stdout=out,
+        stderr=subprocess.PIPE,
+    )
+
+    assert proc.returncode == 0
+    assert args.wrapper or len(proc.stderr) == 0
+
+    out.seek(0)
+    lines = out.readlines()
+
+    for line in lines:
+        assert "@prefix" not in line.decode("utf-8")