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# Solfege - free ear training software
# Copyright (C) 2007, 2008 Tom Cato Amundsen
# License is GPL, see file COPYING
import unittest
from mpd.parser import Clef, UnknownClefException, parse_to_score_object, ParseError
import mpd
class TestClef(unittest.TestCase):
def test_constructor_ok(self):
c = Clef("violin")
self.assertEquals(c.m_octaviation, 0)
self.assertEquals(c.m_name, "violin")
c = Clef("violin_8")
self.assertEquals(c.m_octaviation, -7)
def test_constructor_unknown_clef(self):
self.assertRaises(UnknownClefException, lambda : Clef("not a clefname"))
self.assertRaises(UnknownClefException, lambda : Clef("violin _ 8"))
def test_octaviation(self):
self.assertEquals(Clef("violin").steps_to_ylinepos(0), 13)
self.assertEquals(Clef("violin_8").steps_to_ylinepos(0), 13 - 7)
def test_steps_to_ylinepos(self):
for s, c, o, i in (
("violin", "violin", 0, 13),
("violin_8", "violin", -7, 13 - 7),
("violin_15", "violin", -14, 13 - 14),
("violin^8", "violin", 7, 13 + 7),
("violin^15", "violin", 14, 13 + 14),
):
clef = Clef(s)
self.assertEquals(clef.m_name, c)
self.assertEquals(clef.m_octaviation, o)
self.assertEquals(clef.steps_to_ylinepos(0), i)
class TestMpdParser(unittest.TestCase):
"""
These tests does not check that the engraving is correct,
but we at least know that the parser and engraver does not
crash.
"""
def _check(self, e, s, substring):
"""
e is an exception.
s is the string to search in
substring is the string to find
"""
self.assertEquals(s.split("\n")[e.m_lineno]
[e.m_linepos1:e.m_linepos2], substring)
def test_rest(self):
score = parse_to_score_object(r"\staff {r}")
eng = score.get_engravers(20)
def test_dotted_rest(self):
score = parse_to_score_object(r"\staff {r4.}")
eng = score.get_engravers(20)
score = parse_to_score_object(r"\staff {r4..}")
eng = score.get_engravers(20)
def test_dottt(self):
t = mpd.music_to_tracklist(r"\staff { c4 r4. c4 }", 0)
self.assertEquals(t[0].str_repr(), "n48 d1/4 o48 d3/8 n48 d1/4 o48")
t = mpd.music_to_tracklist(r"\staff { c4 r4.. c4 }", 0)
self.assertEquals(t[0].str_repr(), "n48 d1/4 o48 d7/16 n48 d1/4 o48")
t = mpd.music_to_tracklist(r"\staff { c4 r4. r4.. c4 }", 0)
self.assertEquals(t[0].str_repr(), "n48 d1/4 o48 d13/16 n48 d1/4 o48")
def test_parse_brace_not_allowed(self):
s = "\\staff{ c4 { e \n" \
"}"
try:
t = mpd.music_to_tracklist(s, 0)
except ParseError, e:
self._check(e, s, '{')
self.assertEquals((e.m_linepos1, e.m_linepos2), (11, 12))
else:
self.assertFalse("No exception raised!")
def test_parse_err1(self):
s = "\\staff{ c4 < d < e \n" \
"}"
try:
t = mpd.music_to_tracklist(s, 0)
except ParseError, e:
self._check(e, s, '<')
self.assertEquals((e.m_linepos1, e.m_linepos2), (15, 16))
else:
self.assertFalse("No exception raised!")
def test_parse_err2(self):
s = "\\staff{ \n" \
" c4 < d < e \n" \
"}"
try:
t = mpd.music_to_tracklist(s, 0)
except ParseError, e:
self._check(e, s, '<')
self.assertEquals((e.m_linepos1, e.m_linepos2), (9, 10))
else:
self.assertFalse("No exception raised!")
def test_parse_err3(self):
s = "\\staff{ \n" \
" c4 d > \times 3/2"
try:
t = mpd.music_to_tracklist(s, 0)
except ParseError, e:
self._check(e, s, '>')
self.assertEquals((e.m_linepos1, e.m_linepos2), (7, 8))
else:
self.assertFalse("No exception raised!")
def test_parse_times_do_not_nest(self):
s = "\\staff { c4 \\times 3/2 { \\times 3/2 { c4 c4 } } }\n"
try:
t = mpd.music_to_tracklist(s, 0)
except ParseError, e:
self._check(e, s, '\\times 3/2 {')
self.assertEquals((e.m_linepos1, e.m_linepos2), (25, 37))
else:
self.assertFalse("No exception raised!")
def test_parse_addvoice_before_staff(self):
s = " \\addvoice { \n" \
" c4 d }"
try:
t = mpd.music_to_tracklist(s, 0)
except ParseError, e:
self._check(e, s, '\\addvoice')
self.assertEquals((e.m_linepos1, e.m_linepos2), (3, 12))
else:
self.assertFalse("No exception raised!")
def test_whitespace_at_end(self):
s = " \\staff { \n" \
" c4 d } \n" \
"\t \n"
t = mpd.music_to_tracklist(s, 0)
class TestLexer(unittest.TestCase):
def test_simplest(self):
l = mpd.parser.Lexer("c4 r4")
g = l.get()
self.assertEquals(l.NOTE, g[0])
self.assertEquals(g[1].m_duration.get_rat_value(), mpd.Rat(1, 4))
g = l.get()
self.assertEquals(l.REST, g[0])
self.assertEquals(g[1].m_duration.get_rat_value(), mpd.Rat(1, 4))
def test_note_dotting(self):
l = mpd.parser.Lexer("c4 c4. c.")
self.assertEquals(l.get()[1].m_duration, mpd.duration.Duration(4, 0))
t, m = l.get()
self.assertEquals(t, mpd.parser.Lexer.NOTE)
self.assertEquals(m.m_duration, mpd.duration.Duration(4, 1))
self.assertRaises(mpd.parser.LexerError, lambda : l.get())
def test_rest_dotting(self):
l = mpd.parser.Lexer("c4 r4. r.")
self.assertEquals(l.get()[1].m_duration, mpd.duration.Duration(4, 0))
t, m = l.get()
self.assertEquals(t, mpd.parser.Lexer.REST)
self.assertEquals(m.m_duration, mpd.duration.Duration(4, 1))
self.assertRaises(mpd.parser.LexerError, lambda : l.get())
def test_inherited_time_dotting(self):
l = mpd.parser.Lexer("r4.. c")
t, m = l.get()
self.assertEquals(t, mpd.parser.Lexer.REST)
self.assertEquals(m.m_duration, mpd.duration.Duration(4, 2))
t, m = l.get()
self.assertEquals(t, mpd.parser.Lexer.NOTE)
self.assertEquals(m.m_duration, mpd.duration.Duration(4, 2))
def test_whitespace(self):
l = mpd.parser.Lexer("\t\nc4 \n r4 \n")
g = l.get()
self.assertEquals(l.NOTE, g[0])
self.assertEquals(g[1].m_duration.get_rat_value(), mpd.Rat(1, 4))
g = l.get()
self.assertEquals(l.REST, g[0])
self.assertEquals(g[1].m_duration.get_rat_value(), mpd.Rat(1, 4))
suite = unittest.makeSuite(TestClef)
suite.addTest(unittest.makeSuite(TestMpdParser))
suite.addTest(unittest.makeSuite(TestLexer))
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