def test_concatenate(self):
"""
Test that when documents are concatenated, all documents are part of the new document.
"""
"""
Create the test data.
"""
strings = [
'this is not a pipe', 'this is just a cigarette',
'still just as deadly'
]
tokenizer = Tokenizer(stem=False)
documents = [
Document(string, tokenizer.tokenize(string), scheme=TF())
for string in strings
]
document = Document.concatenate(*documents,
tokenizer=tokenizer,
scheme=TF())
self.assertEqual(2, document.dimensions.get('this'))
self.assertEqual(2, document.dimensions.get('just'))
self.assertEqual(1, document.dimensions.get('pipe'))
self.assertEqual(1, document.dimensions.get('cigarette'))
self.assertEqual(1, document.dimensions.get('deadly'))
self.assertEqual(' '.join(strings), document.text)
def test_concatenate_zero_documents(self):
"""
Test that when no documents are given to be concatenated, an empty document is created.
"""
tokenizer = Tokenizer(stem=False)
documents = []
document = Document.concatenate(*documents,
tokenizer=tokenizer,
scheme=TF())
self.assertFalse(document.dimensions)
self.assertEqual('', document.text)
def test_concatenate_with_attributes(self):
"""
Test that when attributes are given to the concatentation, they are included in the new document.
"""
"""
Create the test data.
"""
strings = [
'this is not a pipe', 'this is just a cigarette',
'still just as deadly'
]
tokenizer = Tokenizer(stem=False)
documents = [
Document(string, tokenizer.tokenize(string), scheme=TF())
for string in strings
]
document = Document.concatenate(*documents,
tokenizer=tokenizer,
scheme=TF(),
attributes={'attr': True})
self.assertTrue(document.attributes['attr'])