def short_frame_middle(self):
"""implimentation of above."""
config.OPTS.consecutive_frames_to_id = 3
temp = SampleMP3File()
temp.add_valid_frames(10)
junk_start = temp.get_size()
header = temp.last_header
temp.add_header(header)
temp.add_bytes(9) #less than a full frame
frame_restart = temp.get_size()
temp.add_valid_frames(10, header)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(20, len(mfile.frames), "Found more or less frames")
self.assertEqual(1, len(mfile.other),
"Found data where there was none")
self.assertEqual(0, mfile.frames[0][1],
"Found first frame at wrong position")
self.assertEqual(frame_restart, mfile.frames[10][1],
"Didn't detect next full frame")
self.assertEqual(
junk_start, mfile.other[0].position,
"Junk not found in correct location (junk is valid frame cut short)"
)
self.assertEqual(
13, len(mfile.other[0]),
"Junk found had wrong length (junk i svalid frame cut short)")
def junk_all_three(self):
"""implimentation of above."""
config.OPTS.consecutive_frames_to_id = 3
temp = SampleMP3File()
junk_amount1 = 2007
junk_amount2 = 5213
junk_amount3 = 128
temp.add_bytes(junk_amount1)
temp.add_valid_frame()
temp.add_valid_frames(9, temp.last_header)
junk_start = temp.get_size()
temp.add_bytes(junk_amount2)
temp.add_valid_frames(10, temp.last_header)
junk_start2 = temp.get_size()
temp.add_bytes(junk_amount3)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(20, len(mfile.frames), "Found wrong number of frames")
self.assertEqual(3, len(mfile.other),
"Found data where there was none")
self.assertEqual(junk_amount1, mfile.frames[0][1],
"Found frame at wrong position")
self.assertEqual(0, mfile.other[0].position,
"Junk found at wrong location")
self.assertEqual(junk_start, mfile.other[1].position,
"Junk found at wrong location")
self.assertEqual(junk_start2, mfile.other[2].position,
"Junk found at wrong location")
self.assertEqual(junk_amount1, len(mfile.other[0]),
"Junk found had wrong length")
self.assertEqual(junk_amount2, len(mfile.other[1]),
"Junk found had wrong length")
self.assertEqual(junk_amount3, len(mfile.other[2]),
"Junk found had wrong length")
def basic_id3_test(self):
"""implement of above"""
config.OPTS.consecutive_frames_to_id = 3
temp = SampleMP3File()
temp.add_id3v1_tag("a title","an artist", "an album")
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(1, len(mfile.other),"More than one tag found")
self.assertEqual(id3.ID3v1x, type(mfile.other[0]), "failed to identify v1 tag")
self.assertEqual(0, mfile.other[0].subversion, "Identified wrong subversion of tag")
self.assertEqual(0, mfile.other[0].position, "failed to identify correct starting location")
def many_frames(self):
"""implimentation of above."""
config.OPTS.consecutive_frames_to_id = 3
temp = SampleMP3File()
temp.add_valid_frames(100)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(100, len(mfile.frames),
"Found more or less than one frame")
self.assertEqual(0, len(mfile.other),
"Found data where there was none")
self.assertEqual(0, mfile.frames[0][1],
"Found frame at wrong position")
def multiple_junk(self):
"""implements the above"""
config.OPTS.consecutive_frames_to_id = 3
temp = SampleMP3File()
temp.add_bytes(200)
temp.add_valid_frames(5)
tagstart = temp.get_size()
temp.add_id3v1_tag("a title","an artist", "an album",track=5)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(2, len(mfile.other),"More than one tag found")
tag = mfile.other[0]
self.assertEqual(id3.ID3v1x, type(tag), "failed to identify v1 tag")
self.assertEqual(1, tag.subversion, "Identified wrong subversion of tag")
self.assertEqual(tagstart, tag.position, "failed to idenitfy correct starting location")
def only_junk(self):
"""implimentation of above."""
config.OPTS.consecutive_frames_to_id = 2 #only one frame in sample file
temp = SampleMP3File()
junk_amount = 16384
temp.add_bytes(junk_amount)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(0, len(mfile.frames),
"Found more or less than one frame")
self.assertEqual(1, len(mfile.other),
"Found data where there was none")
self.assertEqual(0, mfile.other[0].position,
"Junk found at wrong location")
self.assertEqual(junk_amount, len(mfile.other[0]),
"Junk found had wrong length")
def identify_frame_after_false_seek(self):
"""Implimentation of above"""
config.OPTS.consecutive_frames_to_id = 3
temp = SampleMP3File()
temp.add_char(255)
temp.add_valid_frames(5)
junkstart = temp.get_size()
temp.add_char(255)
temp.add_char(255)
framestart = temp.get_size()
temp.add_valid_frames(5)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(1, mfile.frames[0][1], "Didn't skip false seek byte")
self.assertEqual(0, mfile.other[0].position,
"junk #1 found in wrong location")
self.assertEqual(junkstart, mfile.other[1].position,
"junk #2 found in wrong location")
self.assertEqual(2, len(mfile.other[1]), "junk was wrong length")
self.assertEqual(framestart, mfile.frames[5][1],
"Didn't skip 2 byte false seek tag")
def short_frame_end(self):
"""implimentation of above."""
config.OPTS.consecutive_frames_to_id = 2
temp = SampleMP3File()
temp.add_valid_frames(3)
junk_start = temp.get_size()
header = temp.last_header
temp.add_header(header)
temp.add_bytes(9) #less than a full frame
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(3, len(mfile.frames),
"Found more or less than one frame")
self.assertEqual(1, len(mfile.other),
"Found data where there was none")
self.assertEqual(0, mfile.frames[0][1],
"Found frame at wrong position")
self.assertEqual(junk_start, mfile.other[0].position,
"Junk found at wrong location")
self.assertEqual(13, len(mfile.other[0]),
"Junk found had wrong length")
def junk_middle(self):
"""implimentation of above."""
config.OPTS.consecutive_frames_to_id = 3 #only one frame in sample file
temp = SampleMP3File()
junk_amount = 2007
temp.add_valid_frame()
temp.add_valid_frames(9, temp.last_header)
junk_start = temp.get_size()
temp.add_bytes(junk_amount)
temp.add_valid_frames(10, temp.last_header)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(20, len(mfile.frames), "Found wrong number of frames")
self.assertEqual(1, len(mfile.other),
"Found data where there was none")
self.assertEqual(0, mfile.frames[0][1],
"Found frame at wrong position")
self.assertEqual(junk_start, mfile.other[0].position,
"Junk found at wrong location")
self.assertEqual(junk_amount, len(mfile.other[0]),
"Junk found had wrong length")
def test_short_19_python_extended_lockon_test(self):
"""Because the python code uses two different methods to lock on - one
to skip large empty chunks and one to quickly parse frequent hits,
we must test both by exceeding the limit of the first."""
config.OPTS.consecutive_frames_to_id = 3
config.OPTS.use_numpy = False
temp = SampleMP3File()
temp.add_valid_frames(5)
junkstart = temp.get_size()
for _ in range(mp3file._MAX_INDEX_METHOD_SEARCHES * 2):
temp.add_bytes(11)
temp.add_char(255)
nextframe = temp.get_size()
temp.add_valid_frames(5)
mfile = mp3file.MP3File(temp.get_file())
mfile.scan_file()
self.assertEqual(nextframe, mfile.frames[5][1],
"unable to find frame with secondary lockon method")
self.assertEqual(junkstart, mfile.other[0].position,
"junk foun in wrong location")
self.assertEqual(24 * mp3file._MAX_INDEX_METHOD_SEARCHES,
len(mfile.other[0]), "junk found was wrong size")