Drop problematic tests

Some tests had differing outcomes depending on the version of Tesseract
installed on the test system.  This lead to a bunch of false test
failures, which lead to people (including me) just ignoring the Travis
results.

This commit removes those tests, and while it reduces our coverage, at
least the results are predictable.

src/paperless_tesseract/tests/test_date.py

@@ -5,7 +5,7 @@ from unittest import mock
 from uuid import uuid4
 
 from dateutil import tz
-from django.test import TestCase, override_settings
+from django.test import TestCase
 
 from ..parsers import RasterisedDocumentParser
 from django.conf import settings
@@ -16,46 +16,36 @@ class TestDate(TestCase):
     SAMPLE_FILES = os.path.join(os.path.dirname(__file__), "samples")
     SCRATCH = "/tmp/paperless-tests-{}".format(str(uuid4())[:8])
 
+    MOCK_SCRATCH = "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH"  # NOQA: E501
+
     def setUp(self):
         os.makedirs(self.SCRATCH, exist_ok=True)
 
     def tearDown(self):
         shutil.rmtree(self.SCRATCH)
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_1(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
         document._text = "lorem ipsum 130218 lorem ipsum"
         self.assertEqual(document.get_date(), None)
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_2(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
         document._text = "lorem ipsum 2018 lorem ipsum"
         self.assertEqual(document.get_date(), None)
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_3(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
         document._text = "lorem ipsum 20180213 lorem ipsum"
         self.assertEqual(document.get_date(), None)
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_4(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
@@ -69,10 +59,7 @@ class TestDate(TestCase):
             )
         )
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_5(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
@@ -89,10 +76,7 @@ class TestDate(TestCase):
             )
         )
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_6(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
@@ -109,10 +93,7 @@ class TestDate(TestCase):
         )
         self.assertEqual(document.get_date(), None)
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_7(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
@@ -130,10 +111,7 @@ class TestDate(TestCase):
             )
         )
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_8(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
@@ -157,10 +135,7 @@ class TestDate(TestCase):
             )
         )
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_date_format_9(self):
         input_file = os.path.join(self.SAMPLE_FILES, "")
         document = RasterisedDocumentParser(input_file)
@@ -178,398 +153,11 @@ class TestDate(TestCase):
             )
         )
 
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_1_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_1.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        date = document.get_date()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            date,
-            datetime.datetime(
-                2018, 4, 1, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_1_png(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_1.png")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 4, 1, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_2_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_2.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2013, 2, 1, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_2_png(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_2.png")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2013, 2, 1, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    @override_settings(OCR_LANGUAGE="deu")
-    def test_get_text_3_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_3.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 10, 5, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    @override_settings(OCR_LANGUAGE="deu")
-    def test_get_text_3_png(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_3.png")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 10, 5, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    @override_settings(OCR_LANGUAGE="eng")
-    def test_get_text_4_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_4.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 10, 5, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    @override_settings(OCR_LANGUAGE="eng")
-    def test_get_text_4_png(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_4.png")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 10, 5, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_5_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_5.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 12, 17, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_5_png(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_5.png")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 12, 17, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_6_pdf_us(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_6.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.get_text()
-        document.DATE_ORDER = "MDY"
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 12, 17, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_6_png_us(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_6.png")
-        document = RasterisedDocumentParser(input_file)
-        document.get_text()
-        document.DATE_ORDER = "MDY"
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 12, 17, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_6_pdf_eu(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_6.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(document.get_date(), None)
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_6_png_eu(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_6.png")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(document.get_date(), None)
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_7_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_7.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2018, 4, 1, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_8_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_8.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2017, 12, 31, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_get_text_9_pdf(self):
-        input_file = os.path.join(self.SAMPLE_FILES, "tests_date_9.pdf")
-        document = RasterisedDocumentParser(input_file)
-        document.DATE_ORDER = 'DMY'
-        document.get_text()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            document.get_date(),
-            datetime.datetime(
-                2017, 12, 31, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_filename_date_1_pdf(self):
-        input_file = os.path.join(
-            self.SAMPLE_FILES,
-            "tests_date_in_filename_2018-03-20_1.pdf"
-        )
-        document = RasterisedDocumentParser(input_file)
-        document.FILENAME_DATE_ORDER = 'YMD'
-        document.get_text()
-        date = document.get_date()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            date,
-            datetime.datetime(
-                2018, 3, 20, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_filename_date_1_png(self):
-        input_file = os.path.join(
-            self.SAMPLE_FILES,
-            "tests_date_in_filename_2018-03-20_1.png"
-        )
-        document = RasterisedDocumentParser(input_file)
-        document.FILENAME_DATE_ORDER = 'YMD'
-        date = document.get_date()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            date,
-            datetime.datetime(
-                2018, 3, 20, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_filename_date_2_pdf(self):
-        input_file = os.path.join(
-            self.SAMPLE_FILES,
-            "2013-12-11_tests_date_in_filename_2.pdf"
-        )
-        document = RasterisedDocumentParser(input_file)
-        document.FILENAME_DATE_ORDER = 'YMD'
-        date = document.get_date()
-        self.assertEqual(document._is_ocred(), True)
-        self.assertEqual(
-            date,
-            datetime.datetime(
-                2013, 12, 11, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
-    def test_filename_date_2_png(self):
-        input_file = os.path.join(
-            self.SAMPLE_FILES,
-            "2013-12-11_tests_date_in_filename_2.png"
-        )
-        document = RasterisedDocumentParser(input_file)
-        document.FILENAME_DATE_ORDER = 'YMD'
-        date = document.get_date()
-        self.assertEqual(document._is_ocred(), False)
-        self.assertEqual(
-            date,
-            datetime.datetime(
-                2013, 12, 11, 0, 0,
-                tzinfo=tz.gettz(settings.TIME_ZONE)
-            )
-        )
-
     @mock.patch(
         "paperless_tesseract.parsers.RasterisedDocumentParser.get_text",
         return_value="01-07-0590 00:00:00"
     )
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_crazy_date_past(self, *args):
         document = RasterisedDocumentParser("/dev/null")
         document.get_text()
@@ -579,10 +167,7 @@ class TestDate(TestCase):
         "paperless_tesseract.parsers.RasterisedDocumentParser.get_text",
         return_value="01-07-2350 00:00:00"
     )
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_crazy_date_future(self, *args):
         document = RasterisedDocumentParser("/dev/null")
         document.get_text()
@@ -592,10 +177,7 @@ class TestDate(TestCase):
         "paperless_tesseract.parsers.RasterisedDocumentParser.get_text",
         return_value="01-07-0590 00:00:00"
     )
-    @mock.patch(
-        "paperless_tesseract.parsers.RasterisedDocumentParser.SCRATCH",
-        SCRATCH
-    )
+    @mock.patch(MOCK_SCRATCH, SCRATCH)
     def test_crazy_date_past(self, *args):
         document = RasterisedDocumentParser("/dev/null")
         document.get_text()