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dupeguru/py/tests/scanner_test.py
hsoft 1f72e2a6be Moved the tests to a "tests" subfolder, and "un-unittest"'ed some of them. 
--HG--
extra : convert_revision : svn%3Ac306627e-7827-47d3-bdf0-9a457c9553a1/trunk%4025
2009-06-07 14:26:46 +00:00

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# Unit Name: dupeguru.tests.scanner_test
# Created By: Virgil Dupras
# Created On: 2006/03/03
# $Id$
# Copyright 2009 Hardcoded Software (http://www.hardcoded.net)
from hsutil import job
from hsutil.path import Path
from hsutil.testcase import TestCase
from ..engine import getwords, Match
from ..ignore import IgnoreList
from ..scanner import *
class NamedObject(object):
def __init__(self, name="foobar", size=1):
self.name = name
self.size = size
self.path = Path('')
self.words = getwords(name)
no = NamedObject
class TCScanner(TestCase):
def test_empty(self):
s = Scanner()
r = s.GetDupeGroups([])
self.assertEqual([],r)
def test_default_settings(self):
s = Scanner()
self.assertEqual(80,s.min_match_percentage)
self.assertEqual(SCAN_TYPE_FILENAME,s.scan_type)
self.assertEqual(True,s.mix_file_kind)
self.assertEqual(False,s.word_weighting)
self.assertEqual(False,s.match_similar_words)
self.assert_(isinstance(s.ignore_list,IgnoreList))
def test_simple_with_default_settings(self):
s = Scanner()
f = [no('foo bar'),no('foo bar'),no('foo bleh')]
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
g = r[0]
#'foo bleh' cannot be in the group because the default min match % is 80
self.assertEqual(2,len(g))
self.assert_(g.ref in f[:2])
self.assert_(g.dupes[0] in f[:2])
def test_simple_with_lower_min_match(self):
s = Scanner()
s.min_match_percentage = 50
f = [no('foo bar'),no('foo bar'),no('foo bleh')]
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
g = r[0]
self.assertEqual(3,len(g))
def test_trim_all_ref_groups(self):
s = Scanner()
f = [no('foo'),no('foo'),no('bar'),no('bar')]
f[2].is_ref = True
f[3].is_ref = True
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
def test_priorize(self):
s = Scanner()
f = [no('foo'),no('foo'),no('bar'),no('bar')]
f[1].size = 2
f[2].size = 3
f[3].is_ref = True
r = s.GetDupeGroups(f)
g1,g2 = r
self.assert_(f[1] in (g1.ref,g2.ref))
self.assert_(f[0] in (g1.dupes[0],g2.dupes[0]))
self.assert_(f[3] in (g1.ref,g2.ref))
self.assert_(f[2] in (g1.dupes[0],g2.dupes[0]))
def test_content_scan(self):
s = Scanner()
s.scan_type = SCAN_TYPE_CONTENT
f = [no('foo'), no('bar'), no('bleh')]
f[0].md5 = 'foobar'
f[1].md5 = 'foobar'
f[2].md5 = 'bleh'
r = s.GetDupeGroups(f)
self.assertEqual(len(r), 1)
self.assertEqual(len(r[0]), 2)
self.assertEqual(s.discarded_file_count, 0) # don't count the different md5 as discarded!
def test_content_scan_compare_sizes_first(self):
class MyFile(no):
def get_md5(file):
self.fail()
md5 = property(get_md5)
s = Scanner()
s.scan_type = SCAN_TYPE_CONTENT
f = [MyFile('foo',1),MyFile('bar',2)]
self.assertEqual(0,len(s.GetDupeGroups(f)))
def test_min_match_perc_doesnt_matter_for_content_scan(self):
s = Scanner()
s.scan_type = SCAN_TYPE_CONTENT
f = [no('foo'),no('bar'),no('bleh')]
f[0].md5 = 'foobar'
f[1].md5 = 'foobar'
f[2].md5 = 'bleh'
s.min_match_percentage = 101
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
self.assertEqual(2,len(r[0]))
s.min_match_percentage = 0
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
self.assertEqual(2,len(r[0]))
def test_content_scan_puts_md5_in_words_at_the_end(self):
s = Scanner()
s.scan_type = SCAN_TYPE_CONTENT
f = [no('foo'),no('bar')]
f[0].md5 = '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f'
f[1].md5 = '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f'
r = s.GetDupeGroups(f)
g = r[0]
self.assertEqual(['--'],g.ref.words)
self.assertEqual(['--'],g.dupes[0].words)
def test_extension_is_not_counted_in_filename_scan(self):
s = Scanner()
s.min_match_percentage = 100
f = [no('foo.bar'),no('foo.bleh')]
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
self.assertEqual(2,len(r[0]))
def test_job(self):
def do_progress(progress,desc=''):
log.append(progress)
return True
s = Scanner()
log = []
f = [no('foo bar'),no('foo bar'),no('foo bleh')]
r = s.GetDupeGroups(f, job.Job(1,do_progress))
self.assertEqual(0,log[0])
self.assertEqual(100,log[-1])
def test_mix_file_kind(self):
s = Scanner()
s.mix_file_kind = False
f = [no('foo.1'),no('foo.2')]
r = s.GetDupeGroups(f)
self.assertEqual(0,len(r))
def test_word_weighting(self):
s = Scanner()
s.min_match_percentage = 75
s.word_weighting = True
f = [no('foo bar'),no('foo bar bleh')]
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
g = r[0]
m = g.get_match_of(g.dupes[0])
self.assertEqual(75,m.percentage) # 16 letters, 12 matching
def test_similar_words(self):
s = Scanner()
s.match_similar_words = True
f = [no('The White Stripes'),no('The Whites Stripe'),no('Limp Bizkit'),no('Limp Bizkitt')]
r = s.GetDupeGroups(f)
self.assertEqual(2,len(r))
def test_fields(self):
s = Scanner()
s.scan_type = SCAN_TYPE_FIELDS
f = [no('The White Stripes - Little Ghost'),no('The White Stripes - Little Acorn')]
r = s.GetDupeGroups(f)
self.assertEqual(0,len(r))
def test_fields_no_order(self):
s = Scanner()
s.scan_type = SCAN_TYPE_FIELDS_NO_ORDER
f = [no('The White Stripes - Little Ghost'),no('Little Ghost - The White Stripes')]
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
def test_tag_scan(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG
o1 = no('foo')
o2 = no('bar')
o1.artist = 'The White Stripes'
o1.title = 'The Air Near My Fingers'
o2.artist = 'The White Stripes'
o2.title = 'The Air Near My Fingers'
r = s.GetDupeGroups([o1,o2])
self.assertEqual(1,len(r))
def test_tag_with_album_scan(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG_WITH_ALBUM
o1 = no('foo')
o2 = no('bar')
o3 = no('bleh')
o1.artist = 'The White Stripes'
o1.title = 'The Air Near My Fingers'
o1.album = 'Elephant'
o2.artist = 'The White Stripes'
o2.title = 'The Air Near My Fingers'
o2.album = 'Elephant'
o3.artist = 'The White Stripes'
o3.title = 'The Air Near My Fingers'
o3.album = 'foobar'
r = s.GetDupeGroups([o1,o2,o3])
self.assertEqual(1,len(r))
def test_that_dash_in_tags_dont_create_new_fields(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG_WITH_ALBUM
s.min_match_percentage = 50
o1 = no('foo')
o2 = no('bar')
o1.artist = 'The White Stripes - a'
o1.title = 'The Air Near My Fingers - a'
o1.album = 'Elephant - a'
o2.artist = 'The White Stripes - b'
o2.title = 'The Air Near My Fingers - b'
o2.album = 'Elephant - b'
r = s.GetDupeGroups([o1,o2])
self.assertEqual(1,len(r))
def test_tag_scan_with_different_scanned(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG
s.scanned_tags = set(['track', 'year'])
o1 = no('foo')
o2 = no('bar')
o1.artist = 'The White Stripes'
o1.title = 'some title'
o1.track = 'foo'
o1.year = 'bar'
o2.artist = 'The White Stripes'
o2.title = 'another title'
o2.track = 'foo'
o2.year = 'bar'
r = s.GetDupeGroups([o1, o2])
self.assertEqual(1, len(r))
def test_tag_scan_only_scans_existing_tags(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG
s.scanned_tags = set(['artist', 'foo'])
o1 = no('foo')
o2 = no('bar')
o1.artist = 'The White Stripes'
o1.foo = 'foo'
o2.artist = 'The White Stripes'
o2.foo = 'bar'
r = s.GetDupeGroups([o1, o2])
self.assertEqual(1, len(r)) # Because 'foo' is not scanned, they match
def test_tag_scan_converts_to_str(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG
s.scanned_tags = set(['track'])
o1 = no('foo')
o2 = no('bar')
o1.track = 42
o2.track = 42
try:
r = s.GetDupeGroups([o1, o2])
except TypeError:
self.fail()
self.assertEqual(1, len(r))
def test_tag_scan_non_ascii(self):
s = Scanner()
s.scan_type = SCAN_TYPE_TAG
s.scanned_tags = set(['title'])
o1 = no('foo')
o2 = no('bar')
o1.title = u'foobar\u00e9'
o2.title = u'foobar\u00e9'
try:
r = s.GetDupeGroups([o1, o2])
except UnicodeEncodeError:
self.fail()
self.assertEqual(1, len(r))
def test_audio_content_scan(self):
s = Scanner()
s.scan_type = SCAN_TYPE_CONTENT_AUDIO
f = [no('foo'),no('bar'),no('bleh')]
f[0].md5 = 'foo'
f[1].md5 = 'bar'
f[2].md5 = 'bleh'
f[0].md5partial = 'foo'
f[1].md5partial = 'foo'
f[2].md5partial = 'bleh'
f[0].audiosize = 1
f[1].audiosize = 1
f[2].audiosize = 1
r = s.GetDupeGroups(f)
self.assertEqual(1,len(r))
self.assertEqual(2,len(r[0]))
def test_audio_content_scan_compare_sizes_first(self):
class MyFile(no):
def get_md5(file):
self.fail()
md5partial = property(get_md5)
s = Scanner()
s.scan_type = SCAN_TYPE_CONTENT_AUDIO
f = [MyFile('foo'),MyFile('bar')]
f[0].audiosize = 1
f[1].audiosize = 2
self.assertEqual(0,len(s.GetDupeGroups(f)))
def test_ignore_list(self):
s = Scanner()
f1 = no('foobar')
f2 = no('foobar')
f3 = no('foobar')
f1.path = Path('dir1/foobar')
f2.path = Path('dir2/foobar')
f3.path = Path('dir3/foobar')
s.ignore_list.Ignore(str(f1.path),str(f2.path))
s.ignore_list.Ignore(str(f1.path),str(f3.path))
r = s.GetDupeGroups([f1,f2,f3])
self.assertEqual(1,len(r))
g = r[0]
self.assertEqual(1,len(g.dupes))
self.assert_(f1 not in g)
self.assert_(f2 in g)
self.assert_(f3 in g)
# Ignored matches are not counted as discarded
self.assertEqual(s.discarded_file_count, 0)
def test_ignore_list_checks_for_unicode(self):
#scanner was calling path_str for ignore list checks. Since the Path changes, it must
#be unicode(path)
s = Scanner()
f1 = no('foobar')
f2 = no('foobar')
f3 = no('foobar')
f1.path = Path(u'foo1\u00e9')
f2.path = Path(u'foo2\u00e9')
f3.path = Path(u'foo3\u00e9')
s.ignore_list.Ignore(unicode(f1.path),unicode(f2.path))
s.ignore_list.Ignore(unicode(f1.path),unicode(f3.path))
r = s.GetDupeGroups([f1,f2,f3])
self.assertEqual(1,len(r))
g = r[0]
self.assertEqual(1,len(g.dupes))
self.assert_(f1 not in g)
self.assert_(f2 in g)
self.assert_(f3 in g)
def test_custom_match_factory(self):
class MatchFactory(object):
def getmatches(self,objects,j=None):
return [Match(objects[0], objects[1], 420)]
s = Scanner()
s.match_factory = MatchFactory()
o1,o2 = no('foo'),no('bar')
groups = s.GetDupeGroups([o1,o2])
self.assertEqual(1,len(groups))
g = groups[0]
self.assertEqual(2,len(g))
g.switch_ref(o1)
m = g.get_match_of(o2)
self.assertEqual((o1,o2,420),m)
def test_file_evaluates_to_false(self):
# A very wrong way to use any() was added at some point, causing resulting group list
# to be empty.
class FalseNamedObject(NamedObject):
def __nonzero__(self):
return False
s = Scanner()
f1 = FalseNamedObject('foobar')
f2 = FalseNamedObject('foobar')
r = s.GetDupeGroups([f1,f2])
self.assertEqual(1,len(r))
def test_size_threshold(self):
# Only file equal or higher than the size_threshold in size are scanned
s = Scanner()
f1 = no('foo', 1)
f2 = no('foo', 2)
f3 = no('foo', 3)
s.size_threshold = 2
groups = s.GetDupeGroups([f1,f2,f3])
self.assertEqual(len(groups), 1)
[group] = groups
self.assertEqual(len(group), 2)
self.assertTrue(f1 not in group)
self.assertTrue(f2 in group)
self.assertTrue(f3 in group)
def test_tie_breaker_path_deepness(self):
# If there is a tie in prioritization, path deepness is used as a tie breaker
s = Scanner()
o1, o2 = no('foo'), no('foo')
o1.path = Path('foo')
o2.path = Path('foo/bar')
[group] = s.GetDupeGroups([o1, o2])
self.assertTrue(group.ref is o2)
def test_tie_breaker_copy(self):
# if copy is in the words used (even if it has a deeper path), it becomes a dupe
s = Scanner()
o1, o2 = no('foo bar Copy'), no('foo bar')
o1.path = Path('deeper/path')
o2.path = Path('foo')
[group] = s.GetDupeGroups([o1, o2])
self.assertTrue(group.ref is o2)
def test_tie_breaker_same_name_plus_digit(self):
# if ref has the same words as dupe, but has some just one extra word which is a digit, it
# becomes a dupe
s = Scanner()
o1, o2 = no('foo bar 42'), no('foo bar')
o1.path = Path('deeper/path')
o2.path = Path('foo')
[group] = s.GetDupeGroups([o1, o2])
self.assertTrue(group.ref is o2)
def test_partial_group_match(self):
# Count the number od discarded matches (when a file doesn't match all other dupes of the
# group) in Scanner.discarded_file_count
s = Scanner()
o1, o2, o3 = no('a b'), no('a'), no('b')
s.min_match_percentage = 50
[group] = s.GetDupeGroups([o1, o2, o3])
self.assertEqual(len(group), 2)
self.assertTrue(o1 in group)
self.assertTrue(o2 in group)
self.assertTrue(o3 not in group)
self.assertEqual(s.discarded_file_count, 1)
class TCScannerME(TestCase):
def test_priorize(self):
# in ScannerME, bitrate goes first (right after is_ref) in priorization
s = ScannerME()
o1, o2 = no('foo'), no('foo')
o1.bitrate = 1
o2.bitrate = 2
[group] = s.GetDupeGroups([o1, o2])
self.assertTrue(group.ref is o2)
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