Formalize PDF/A testing

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/test_pdfa.py b/tests/test_pdfa.py
new file mode 100644
index 0000000..b15b6fd
--- /dev/null
+++ b/tests/test_pdfa.py
@@ -0,0 +1,45 @@
+import pytest
+from pikepdf import qpdf
+
+import os
+import platform
+import shutil
+from pathlib import Path
+from contextlib import suppress
+from subprocess import run, PIPE, STDOUT, DEVNULL
+import xml.etree.ElementTree as ET
+
+
+VERAPDF = Path(os.environ['HOME']) / 'verapdf' / 'verapdf'
+
+
+NO_PDFA_VALIDATOR = not VERAPDF.is_file()
+
+
+def verapdf_validate(filename):
+    with open(filename, 'rb') as f:
+        proc = run([VERAPDF], stdin=f, stdout=PIPE, stderr=STDOUT, check=True)
+        result = proc.stdout.decode('utf-8')
+
+        xml_start = result.find('<?xml version')
+        xml = result[xml_start:]
+
+    root = ET.fromstring(xml)
+    node = root.find(".//taskResult[@type='VALIDATE']")
+    return node.attrib['isExecuted'] == 'true' and \
+            node.attrib['isSuccess'] == 'true'
+
+
+@pytest.mark.skipif(NO_PDFA_VALIDATOR, reason="can't find verapdf")
+def test_pdfa_sanity(resources, outdir):
+    filename = resources / 'veraPDF test suite 6-2-10-t02-pass-a.pdf'
+
+    assert verapdf_validate(filename)
+
+    pdf = qpdf.QPDF.open(filename)
+    pdf.save(outdir / 'pdfa.pdf')
+
+    assert verapdf_validate(outdir / 'pdfa.pdf')
+
+
+