Add test case to check for no regressions after exposing service inside from_file

Author: jjelosua

tika/tests/test_from_file_service.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# python -m unittest tika.tests.test_from_file_service
+
+import unittest
+import tika.parser
+
+
+class CreateTest(unittest.TestCase):
+    'test different services in from_file parsing: Content, Metadata or both in recursive mode'
+
+    def test_default_service(self):
+        'parse file using default service'
+        result = tika.parser.from_file(
+            'https://boe.es/boe/dias/2019/12/02/pdfs/BOE-A-2019-17288.pdf')
+        self.assertEqual(result['metadata']['Content-Type'],'application/pdf')
+        self.assertIn('AUTORIDADES Y PERSONAL',result['content'])
+    def test_default_service_explicit(self):
+        'parse file using default service explicitly'
+        result = tika.parser.from_file(
+            'https://boe.es/boe/dias/2019/12/02/pdfs/BOE-A-2019-17288.pdf', service='all')
+        self.assertEqual(result['metadata']['Content-Type'],'application/pdf')
+        self.assertIn('AUTORIDADES Y PERSONAL',result['content'])
+    def test_text_service(self):
+        'parse file using the content only service'
+        result = tika.parser.from_file(
+            'https://boe.es/boe/dias/2019/12/02/pdfs/BOE-A-2019-17288.pdf', service='text')
+        self.assertIsNone(result['metadata'])
+        self.assertIn('AUTORIDADES Y PERSONAL',result['content'])
+    def test_meta_service(self):
+        'parse file using the content only service'
+        result = tika.parser.from_file(
+            'https://boe.es/boe/dias/2019/12/02/pdfs/BOE-A-2019-17288.pdf', service='meta')
+        self.assertIsNone(result['content'])
+        self.assertEqual(result['metadata']['Content-Type'],'application/pdf')
+    def test_invalid_service(self):
+        'parse file using an invalid service should perform the default parsing'
+        result = tika.parser.from_file(
+            'https://boe.es/boe/dias/2019/12/02/pdfs/BOE-A-2019-17288.pdf', service='bad')
+        self.assertEqual(result['metadata']['Content-Type'],'application/pdf')
+        self.assertIn('AUTORIDADES Y PERSONAL',result['content'])
+
+if __name__ == '__main__':
+    unittest.main()