Add test case for corrupt ICC profiles

src/ocrmypdf/pdfinfo/info.py

@@ -361,7 +361,7 @@ class ImageInfo:
                     self._comp = 3
             except UnsupportedImageTypeError as ex:
                 self._comp = None
-                logger.warn(
+                logger.warning(
                     f"An image with a corrupt or unreadable ICC profile was found. "
                     f"The output PDF may not match the input PDF visually: {ex}. {self}"
                 )

tests/test_main.py

@@ -922,3 +922,25 @@ def test_outputtype_none(resources, outtxt):
         'tests/plugins/tesseract_noop.py',
     )
     assert p.returncode == ExitCode.ok
+
+
+@pytest.fixture
+def graph_bad_icc(resources, outdir):
+    synth_input_file = outdir / 'graph-bad-icc.pdf'
+    with pikepdf.open(resources / 'graph.pdf') as pdf:
+        icc = pdf.make_stream(
+            b'invalid icc profile', N=3, Alternate=pikepdf.Name.DeviceRGB
+        )
+        pdf.pages[0].Resources.XObject['/Im0'].ColorSpace = pikepdf.Array(
+            [pikepdf.Name.ICCBased, icc]
+        )
+        pdf.save(synth_input_file)
+        yield synth_input_file
+
+
+def test_corrupt_icc(graph_bad_icc, outpdf, caplog):
+    result = run_ocrmypdf_api(graph_bad_icc, outpdf)
+    assert result == ExitCode.ok
+    assert any(
+        'corrupt or unreadable ICC profile' in rec.message for rec in caplog.records
+    )