metadata: connect to other components, initial tests, docs

2 files changed, 21 insertions, 3 deletions

diff --git a/tests/test_metadata.py b/tests/test_metadata.py
index f64f33b..a3713cb 100644
--- a/tests/test_metadata.py
+++ b/tests/test_metadata.py
@@ -4,8 +4,7 @@ from pikepdf import Pdf, Dictionary
 
 @pytest.fixture
 def vera(resources):
-    pdf = Pdf.open(resources / 'veraPDF test suite 6-2-10-t02-pass-a.pdf')
-    return pdf
+    return Pdf.open(resources / 'veraPDF test suite 6-2-10-t02-pass-a.pdf')
 
 
 @pytest.fixture
@@ -13,6 +12,11 @@ def graph(resources):
     return Pdf.open(resources / 'graph.pdf')
 
 
+@pytest.fixture
+def trivial(resources):
+    return Pdf.open(resources / 'pal-1bit-trivial.pdf')
+
+
 def test_no_info(vera, outdir):
     assert vera.trailer.get('/Info') is None, 'need a test file with no /Info'
 
@@ -46,3 +50,16 @@ def test_copy_info(vera, graph, outdir):
     vera.docinfo = vera.copy_foreign(graph.docinfo)
     assert vera.docinfo.is_indirect, "/Info must be an indirect object"
     vera.save(outdir / 'out.pdf')
+
+
+def test_add_new_xmp_and_mark(trivial):
+    with trivial.open_metadata(set_pikepdf_as_editor=False, sync_docinfo=False) as xmp_view:
+        assert not xmp_view
+
+    with trivial.open_metadata(sync_docinfo=False) as xmp:
+        assert not xmp  # No changes at this point
+    del xmp
+
+    with trivial.open_metadata(sync_docinfo=False) as xmp:
+        assert 'pikepdf' in xmp['pdf:Producer']
+        assert 'xmp:MetadataDate' in xmp
diff --git a/tests/test_pdfa.py b/tests/test_pdfa.py
index dd4ce7d..5757d30 100644
--- a/tests/test_pdfa.py
+++ b/tests/test_pdfa.py
@@ -5,7 +5,7 @@ import platform
 import shutil
 from pathlib import Path
 from contextlib import suppress
-from subprocess import run, PIPE, STDOUT, DEVNULL
+from subprocess import run, PIPE, STDOUT
 import xml.etree.ElementTree as ET
 
 
@@ -40,3 +40,4 @@ def test_pdfa_sanity(resources, outdir):
     pdf.save(outdir / 'pdfa.pdf')
 
     assert verapdf_validate(outdir / 'pdfa.pdf')
+    assert pdf.open_metadata().pdfa_status == '1B'