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test_chorddiagram.py
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test_chorddiagram.py
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#!usr/bin/env python3
import unittest
import chordprobook.chords
import chordprobook.chords as chords
import chordprobook.instruments
class TestChorddiagram(unittest.TestCase):
def test_init(self):
"""
Struggling to write good tests here
"""
d = chords.ChordDiagram( name="D", strings=[chords.String([chords.Dot(2,1)]),chords.String([chords.Dot(2,1)]),chords.String([chords.Dot(2,1)]),chords.String([chords.Dot(5, 3),chords.Dot(2,1)])])
#d.show()
d.draw()
self.assertTrue(d.string_top < d.string_bottom)
#Check frets are not on top of each other
fret_y = 0
for f in d.frets:
self.assertTrue(f.y > fret_y)
fret_y = f.y
#'Normal' chord, diagram should have 5 frets
self.assertEqual(d.num_frets, 5)
#d.show()
d= chords.ChordDiagram( name="G", strings=[chords.String([chords.Dot(0)]),chords.String([chords.Dot(2,1)]),chords.String([chords.Dot(3,3)]),chords.String([chords.Dot(2, 2)])])
d.draw()
#Guitar G chord
d= chords.ChordDiagram( name="G", strings=[chords.String([chords.Dot(3,2)]),chords.String([chords.Dot(2,1)]),chords.String([chords.Dot(0)]),chords.String([chords.Dot(0)]),chords.String([chords.Dot(0)]), chords.String([chords.Dot(3,3)])])
#Check strings are not on top of each other
d.draw()
self.assertEqual(d.num_strings, 6)
string_x = 0
for s in d.strings:
self.assertTrue(s.string_x > string_x)
string_x = s.string_x
self.assertTrue(string_x < d.box_width)
def test_parse(self):
#Simple chord
achord = "{define: A frets 2 1 0 0}"
d = chords.ChordDiagram()
d.parse_definition(achord)
d.draw()
self.assertEqual(d.num_strings, 4)
self.assertEqual(d.strings[0].dots[0].fret, 2)
self.assertEqual(d.strings[0].dots[0].finger, None)
self.assertEqual(d.strings[1].dots[0].fret, 1)
self.assertEqual(d.strings[1].dots[0].finger, None)
self.assertEqual(d.strings[2].dots[0].fret, 0)
self.assertEqual(d.strings[2].dots[0].finger, None)
self.assertEqual(d.strings[3].dots[0].fret, 0)
self.assertEqual(d.strings[3].dots[0].finger, None)
# Simple chord without "frets"
achord = "{define: A 2 1 0 0}"
d = chords.ChordDiagram()
d.parse_definition(achord)
d.draw()
self.assertEqual(d.num_strings, 4)
self.assertEqual(d.strings[0].dots[0].fret, 2)
self.assertEqual(d.strings[0].dots[0].finger, None)
self.assertEqual(d.strings[1].dots[0].fret, 1)
self.assertEqual(d.strings[1].dots[0].finger, None)
self.assertEqual(d.strings[2].dots[0].fret, 0)
self.assertEqual(d.strings[2].dots[0].finger, None)
self.assertEqual(d.strings[3].dots[0].fret, 0)
self.assertEqual(d.strings[3].dots[0].finger, None)
# Chord with fingering
achord = "{define: A frets 2 1 0 0 fingers 2 1 0 0}"
d = chords.ChordDiagram()
d.parse_definition(achord)
d.draw()
self.assertEqual(d.num_strings, 4)
self.assertEqual(d.strings[0].dots[0].fret, 2)
self.assertEqual(d.strings[1].dots[0].fret, 1)
self.assertEqual(d.strings[2].dots[0].fret, 0)
self.assertEqual(d.strings[3].dots[0].fret, 0)
# Chord with added fingering
aaugchord = "{define: Aaug frets 2 1 1 4 fingers 2 1 1 4 add: string 1 fret 1 finger 1 add: string 4 fret 1 finger 1}"
d = chords.ChordDiagram()
d.parse_definition(aaugchord)
d.draw()
self.assertEqual(d.num_strings, 4)
# TODO - check serialisation of this chord with fingers and all
# Chord with non-played strings
dchord = "{define: D x 0 0 2 3 2}"
d = chords.ChordDiagram()
d.parse_definition(dchord)
d.draw()
self.assertEqual(d.num_strings, 6)
self.assertEqual(d.strings[0].dots[0].fret, None)
self.assertEqual(d.strings[1].dots[0].fret, 0)
self.assertEqual(d.strings[2].dots[0].fret, 0)
self.assertEqual(d.strings[3].dots[0].fret, 2)
self.assertEqual(d.strings[4].dots[0].fret, 3)
self.assertEqual(d.strings[5].dots[0].fret, 2)
# Chord starting on a higher fret
e5chord = "{define: E5 base-fret 7 frets 0 1 3 3 x x}"
d = chords.ChordDiagram()
d.parse_definition(e5chord)
d.draw()
#d.show()
self.assertEqual(d.num_strings, 6)
self.assertEqual(d.strings[0].dots[0].fret, 0)
self.assertEqual(d.strings[1].dots[0].fret, 1)
self.assertEqual(d.strings[2].dots[0].fret, 3)
self.assertEqual(d.strings[3].dots[0].fret, 3)
self.assertEqual(d.strings[4].dots[0].fret, None)
self.assertEqual(d.strings[5].dots[0].fret, None)
# Same E5 chord starting on a higher fret
e5chord = "{define: E5 frets 0 8 10 10 x x}"
d = chords.ChordDiagram()
d.parse_definition(e5chord)
d.draw()
#d.show()
self.assertEqual(d.num_strings, 6)
self.assertEqual(d.strings[0].dots[0].fret, 0)
self.assertEqual(d.strings[1].dots[0].fret, 1)
self.assertEqual(d.strings[2].dots[0].fret, 3)
self.assertEqual(d.strings[3].dots[0].fret, 3)
self.assertEqual(d.strings[4].dots[0].fret, None)
self.assertEqual(d.strings[5].dots[0].fret, None)
self.assertEqual(d.open_strings, 1)
self.assertEqual(d.non_played_strings, 2)
self.assertEqual(d.to_chordpro(), "{define: E5 base-fret 7 frets 0 1 3 3 x x}")
dchord = "{define: D base-fret 1 frets 1 1 1 4}"
d = chords.ChordDiagram()
d.parse_definition(dchord)
d.draw()
self.assertEqual(d.num_strings, 4)
self.assertEqual(d.strings[0].dots[0].fret, 2)
self.assertEqual(d.strings[1].dots[0].fret, 2)
self.assertEqual(d.strings[2].dots[0].fret, 2)
self.assertEqual(d.strings[3].dots[0].fret, 5)
# Stupid chord requiring 7 fingers and 8 strings
stupid = "{define: F#stupid base-fret 22 frets 1 2 3 x 4 5 6 7 8 9 10 11 fingers 11 10 9 8 0 7 6 5 4 3 2 1}"
d = chords.ChordDiagram()
d.parse_definition(stupid)
d.draw()
self.assertEqual(d.non_played_strings, 1)
def test_transpose(self):
c = chords.transposer(2)
self.assertEqual(c.transpose_note("C"), "D")
c = chords.transposer(1)
self.assertEqual(c.transpose_note("B"), "C")
c = chords.transposer(2)
self.assertEqual(c.transpose_chord("C"), "D")
c = chords.transposer(1)
self.assertEqual(c.transpose_chord("C7"), "C#7")
c = chords.transposer(1)
self.assertEqual(c.transpose_chord("Asus4"), "Bbsus4")
c = chords.transposer(-1)
self.assertEqual(c.transpose_chord("C#7"), "C7")
self.assertEqual(c.transpose_chord("Cm"), "Bm")
self.assertEqual(c.transpose_chord("G#m/B"), "Gm/Bb")
def test_nashvillization(self):
#TODO refactor code so this is no longer hanging off the ChordChart class
chart = chords.ChordChart()
self.assertEqual(chart.nashvillize("C","C"), "I")
self.assertEqual(chart.nashvillize("C7","C"), "I⁷")
self.assertEqual(chart.nashvillize("Cm","C"), "i")
self.assertEqual(chart.nashvillize("Bb","Bb"), "I")
self.assertEqual(chart.nashvillize("G/F#","C"), "V/♭5")
self.assertEqual(chart.nashvillize("Bb/A","Bb"), "I/7")
self.assertEqual(chart.nashvillize("Bb/A","Bb"), "I/7")
self.assertEqual(chart.nashvillize("Am","Am"), "i")
self.assertEqual(chart.nashvillize("Am/G","Am"), "i/7")
self.assertEqual(chart.nashvillize("Am/C","Am"), "i/3")
self.assertEqual(chart.nashvillize("Am/C","Am", major_chart=True), "vi/1")
self.assertEqual(chart.nashvillize("Am","Am", major_chart=True), "vi")
self.assertEqual(chart.nashvillize("C","C", major_chart=True), "I")
self.assertEqual(chart.nashvillize("Cmaj7","C", major_chart=True), "IΔ")
def test_normalisation(self):
chart = chords.ChordChart()
chart.load_tuning_by_name("Soprano Uke")
#Check normalisation code
self.assertEqual(chart.grid_as_md("F#7///"), chart.grid_as_md("F#7"))
self.assertEqual(chart.normalise_chord_name("Am7-5"), "Am7-5")
self.assertEqual(chart.normalise_chord_name("Cmaj"), "C")
self.assertEqual(chart.normalise_chord_name("CM7"), "Cmaj7")
self.assertEqual(chart.normalise_chord_name("Cmaj7"), "Cmaj7")
self.assertEqual(chart.normalise_chord_name("C+"), "Caug")
self.assertEqual(chart.clean_chord_name("A!"), "A")
self.assertEqual(chart.normalise_chord_name("AM7 / / /"), "Amaj7")
# Clean removes rhythm marks but does not change chord names
self.assertEqual(chart.clean_chord_name("Amaj7 / / /"), "Amaj7")
self.assertEqual(chart.clean_chord_name("AM7 / / /"), "AM7")
def test_grid(self):
chart = chords.ChordChart()
chart.load_tuning_by_name("Soprano Uke")
self.assertEqual(chart.grid_as_md("F#7"), chart.grid_as_md("F#7!"))
#chart.get_default("F#7").show()
self.assertEqual(chart.get_default("Gbm7").to_chordpro(), chart.get_default("F#m7").to_chordpro())
F_sharp_chord_def = "{define: F#m7 base-fret 7 frets 2 1 2 0}"
Gb_chord_def = "{define: Gbm7 base-fret 7 frets 2 1 2 0}"
c = chords.ChordChart()
c.add_grid(Gb_chord_def)
self.assertEqual(c.get_default("Gbm7").to_chordpro(), F_sharp_chord_def)
c = chords.ChordChart()
c.add_grid(Gb_chord_def)
self.assertEqual(c.get_default("F#m7").to_chordpro(), F_sharp_chord_def)
self.assertEqual(c.get_default("F#m7//").to_chordpro(), F_sharp_chord_def)
self.assertEqual(c.get_default("F#m7!").to_chordpro(), F_sharp_chord_def)
def test_notes(self):
N = chordprobook.chords.Note
self.assertEqual(N("C#").num, N("Db").num)
self.assertEqual(N(0).name, "C")
self.assertEqual(N(0).num, 0)
self.assertEqual(N('C').name, 'C')
D = N('C')
D.transpose(2)
self.assertEqual(D.num, 2)
def test_chord_generator(self):
N = chordprobook.chords.Note
c_chord = chordprobook.chords.Chord('C')
self.assertEqual(c_chord.flavour, "")
self.assertEqual(c_chord.root.num, N("C").num)
#self.assertEqual(c_chord.spell(), [note('C'),'E','G'])
c_chord = chordprobook.chords.Chord('Cm')
self.assertEqual(c_chord.flavour, "m")
self.assertEqual(c_chord.root.num, N("C").num)
print(str(c_chord.spell()))
self.assertEqual(c_chord.spell(), [N('C').num, N('Eb').num, N('G').num])
if __name__ == '__main__':
unittest.main()