Refactor out unpaper-specific tests

tests/test_main.py

@@ -124,11 +124,6 @@ def test_deskew(spoof_tesseract_noop, resources, outdir):
     assert -0.5 < skew_angle < 0.5, "Deskewing failed"
 
 
-def test_clean(spoof_tesseract_noop, resources, outpdf):
-    check_ocrmypdf(resources / 'skew.pdf', outpdf, '-c',
-                   env=spoof_tesseract_noop)
-
-
 def test_remove_background(spoof_tesseract_noop, resources, outdir):
     from PIL import Image
 
@@ -551,22 +546,6 @@ def test_tesseract_image_too_big(renderer, spoof_tesseract_big_image_error,
         env=spoof_tesseract_big_image_error)
 
 
-@pytest.mark.skipif(True, reason="need new implementation")
-def test_no_unpaper(resources, no_outpdf):
-    env = os.environ.copy()
-    env['OCRMYPDF_UNPAPER'] = os.path.abspath('./spoof/no_unpaper_here.py')
-    p, out, err = run_ocrmypdf(
-        resources / 'c02-22.pdf', no_outpdf, '--clean', env=env)
-    assert p.returncode == ExitCode.missing_dependency
-
-
-def test_old_unpaper(spoof_unpaper_oldversion, resources, no_outpdf):
-    p, out, err = run_ocrmypdf(
-        resources / 'c02-22.pdf', no_outpdf, '--clean', 
-        env=spoof_unpaper_oldversion)
-    assert p.returncode == ExitCode.missing_dependency
-
-
 def test_algo4(resources, no_outpdf):
     p, _, _ = run_ocrmypdf(resources / 'encrypted_algo4.pdf', no_outpdf)
     assert p.returncode == ExitCode.encrypted_pdf

tests/test_unpaper.py

@@ -0,0 +1,62 @@
+# © 2015-17 James R. Barlow: github.com/jbarlow83
+#
+# This file is part of OCRmyPDF.
+#
+# OCRmyPDF is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# OCRmyPDF is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with OCRmyPDF.  If not, see <http://www.gnu.org/licenses/>.
+
+from subprocess import Popen, PIPE, check_output, check_call, DEVNULL
+from pathlib import Path
+import os
+import shutil
+import resource
+import pytest
+from ocrmypdf.pdfinfo import PdfInfo, Colorspace, Encoding
+import PyPDF2 as pypdf
+from ocrmypdf.exceptions import ExitCode
+from ocrmypdf import leptonica
+from ocrmypdf.pdfa import file_claims_pdfa
+from ocrmypdf.exec import ghostscript, tesseract, qpdf
+import logging
+from math import isclose
+
+import PIL
+
+# pytest.helpers is dynamic
+# pylint: disable=no-member
+# pylint: disable=w0612
+
+check_ocrmypdf = pytest.helpers.check_ocrmypdf
+run_ocrmypdf = pytest.helpers.run_ocrmypdf
+spoof = pytest.helpers.spoof
+
+
+@pytest.mark.skipif(True, 
+                    reason="needs new fixture implementation")
+def test_no_unpaper(resources, no_outpdf):
+    # <disable unpaper here>
+    p, out, err = run_ocrmypdf(
+        resources / 'c02-22.pdf', no_outpdf, '--clean', env=env)
+    assert p.returncode == ExitCode.missing_dependency
+
+
+def test_old_unpaper(spoof_unpaper_oldversion, resources, no_outpdf):
+    p, out, err = run_ocrmypdf(
+        resources / 'c02-22.pdf', no_outpdf, '--clean', 
+        env=spoof_unpaper_oldversion)
+    assert p.returncode == ExitCode.missing_dependency
+
+
+def test_clean(spoof_tesseract_noop, resources, outpdf):
+    check_ocrmypdf(resources / 'skew.pdf', outpdf, '-c',
+                   env=spoof_tesseract_noop)