Update PDF text parser classes. Remove SlateParser and substitute with a PDFMiner based parser.

mayan/apps/ocr/test_parsers.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.core.files.base import File
+from django.test import TestCase
+
+from documents.models import DocumentType
+from documents.settings import setting_language_choices
+from documents.test_models import (
+    TEST_DOCUMENT_PATH, TEST_DOCUMENT_TYPE, TEST_SMALL_DOCUMENT_PATH
+)
+
+from .parsers import PDFMinerParser, PopplerParser
+
+
+class ParserTestCase(TestCase):
+    def setUp(self):
+        self.document_type = DocumentType.objects.create(
+            label=TEST_DOCUMENT_TYPE
+        )
+
+        ocr_settings = self.document_type.ocr_settings
+        ocr_settings.auto_ocr = False
+        ocr_settings.save()
+
+        with open(TEST_DOCUMENT_PATH) as file_object:
+            self.document = self.document_type.new_document(
+                file_object=File(file_object)
+            )
+
+    def tearDown(self):
+        self.document.delete()
+        self.document_type.delete()
+
+    def test_pdfminer_parser(self):
+        parser = PDFMinerParser()
+
+        parser.process_document_version(self.document.latest_version)
+
+        self.assertTrue(
+            'Mayan EDMS Documentation' in self.document.pages.first().ocr_content.content
+        )
+
+    def test_poppler_parser(self):
+        parser = PopplerParser()
+
+        parser.process_document_version(self.document.latest_version)
+
+        self.assertTrue(
+            'Mayan EDMS Documentation' in self.document.pages.first().ocr_content.content
+        )