From 1fb84760a8230637a806e8e83410fc7fb6d446d2 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 4 Sep 2021 15:03:11 -0400
Subject: Add "contextual" output option

This is mainly for developer or power-user cases, where one wants to look at
some data for investigation or debugging.  In such cases, it's common for the
set of prefixes to be implicitly known (because they are baked in to the
application, for example), so printing them just produces a large amount of
redundant noise.

That said, it can also be useful programmatically, because it allows several
snippets to be written independently and ultimately concatenated (with a header
to define the prefixes) without redundancy.
---
 test/meson.build        |  8 ++++++++
 test/test_contextual.py | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100755 test/test_contextual.py

(limited to 'test')

diff --git a/test/meson.build b/test/meson.build
index 37bae479..ae66ba37 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -236,6 +236,14 @@ if is_variable('serd_pipe')
        env: test_env,
        should_fail: true,
        suite: ['tools', 'pipe', 'output'])
+
+  # Write options
+
+  test('contextual', files('test_contextual.py'),
+       args: pipe_test_script_args + files('../serd.ttl'),
+       env: test_env,
+       suite: ['tools', 'pipe', 'output'])
+
 endif
 
 # Test specifics for serd-sort
diff --git a/test/test_contextual.py b/test/test_contextual.py
new file mode 100755
index 00000000..0902fa19
--- /dev/null
+++ b/test/test_contextual.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+
+"""Test writing with -O contextual (SERD_WRITE_CONTEXTUAL)."""
+
+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,
+]
+
+DOCUMENT = "<{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=DOCUMENT,
+        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")
-- 
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