1 files changed, 83 insertions, 0 deletions
diff --git a/test/test_patterns.py b/test/test_patterns.py
new file mode 100755
index 00000000..50571a92
--- /dev/null
+++ b/test/test_patterns.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+
+# Copyright 2021-2023 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: ISC
+
+"""Test filtering statements inclusively and exclusively."""
+
+import serd_test_util as util
+
+DOCS = {
+    "ntriples": """
+<http://example.org/s> <http://example.org/p> <http://example.org/o> .
+<http://example.org/N> <http://example.org/I> <http://example.org/L> .
+""",
+    "nquads": """
+<urn:example:s> <urn:example:p> <urn:example:o> <urn:example:g> .
+<urn:example:N> <urn:example:U> <urn:example:L> <urn:example:L> .
+""",
+}
+
+args = util.wrapper_args(__doc__)
+
+
+def check_pattern(syntax, pattern, expected_inclusive, expected_exclusive):
+    """Run a check with an exclusive pattern."""
+
+    command = [args.tool, "-I", syntax, pattern]
+    inclusive = util.command_output(args.wrapper, command, DOCS[syntax])
+    assert inclusive == expected_inclusive
+
+    command = [args.tool, "-I", syntax, "-v", pattern]
+    exclusive = util.command_output(args.wrapper, command, DOCS[syntax])
+    assert exclusive == expected_exclusive
+
+
+check_pattern(
+    "ntriples",
+    "?s <http://example.org/p> <http://example.org/o> .",
+    "<http://example.org/s> <http://example.org/p> <http://example.org/o> .\n",
+    "<http://example.org/N> <http://example.org/I> <http://example.org/L> .\n",
+)
+
+check_pattern(
+    "ntriples",
+    "<http://example.org/s> ?p <http://example.org/o> .",
+    "<http://example.org/s> <http://example.org/p> <http://example.org/o> .\n",
+    "<http://example.org/N> <http://example.org/I> <http://example.org/L> .\n",
+)
+
+check_pattern(
+    "ntriples",
+    "<http://example.org/s> <http://example.org/p> ?o .",
+    "<http://example.org/s> <http://example.org/p> <http://example.org/o> .\n",
+    "<http://example.org/N> <http://example.org/I> <http://example.org/L> .\n",
+)
+
+check_pattern(
+    "nquads",
+    "?s <urn:example:p> <urn:example:o> <urn:example:g> .",
+    "<urn:example:s> <urn:example:p> <urn:example:o> <urn:example:g> .\n",
+    "<urn:example:N> <urn:example:U> <urn:example:L> <urn:example:L> .\n",
+)
+
+check_pattern(
+    "nquads",
+    "<urn:example:s> ?p <urn:example:o> <urn:example:g> .",
+    "<urn:example:s> <urn:example:p> <urn:example:o> <urn:example:g> .\n",
+    "<urn:example:N> <urn:example:U> <urn:example:L> <urn:example:L> .\n",
+)
+
+check_pattern(
+    "nquads",
+    "<urn:example:s> <urn:example:p> ?o <urn:example:g> .",
+    "<urn:example:s> <urn:example:p> <urn:example:o> <urn:example:g> .\n",
+    "<urn:example:N> <urn:example:U> <urn:example:L> <urn:example:L> .\n",
+)
+
+check_pattern(
+    "nquads",
+    "<urn:example:s> <urn:example:p> <urn:example:o> ?g .",
+    "<urn:example:s> <urn:example:p> <urn:example:o> <urn:example:g> .\n",
+    "<urn:example:N> <urn:example:U> <urn:example:L> <urn:example:L> .\n",
+)