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jtab-unittest.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<title>jTab - Unit Tests</title>
<script src="unit_test_assets/jsunittest.js" type="text/javascript"></script>
<link rel="stylesheet" href="unit_test_assets/unittest.css" type="text/css" />
<!-- START: for jtab -->
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />
<link type="text/css" rel="stylesheet" href="css/jtab-helper.css"/>
<script src="javascripts/jquery.js" type="text/javascript"></script>
<script src="javascripts/raphael.js" type="text/javascript"></script>
<script src="javascripts/jtab.js" type="text/javascript"></script>
<!-- END: for jtab -->
</head>
<body>
<div id="content">
<div id="header">
<h1>jTab - Unit Tests</h1>
<p>
This file tests the core algirithms in <strong>jtab.js</strong>.
</p>
</div>
<!-- Log output (one per Runner, via {testLog: "testlog"} option)-->
<div id="testlog"></div>
<!-- Put sample/test html here -->
<div id="sample">
</div>
</div>
<script type="text/javascript">
// <![CDATA[
new Test.Unit.Runner({
setup: function() {
},
teardown: function() {
},
testUnitTestFrameworkOperational: function() { with(this) {
assert(true);
}},
testRaphaelGetStringNumber: function() { with(this) {
var token = "$1"; var expected = 1;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$2"; expected = 2;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$3"; expected = 3;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$4"; expected = 4;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$5"; expected = 5;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$6"; expected = 6;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$e"; expected = 1;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$B"; expected = 2;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$G"; expected = 3;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$D"; expected = 4;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$A"; expected = 5;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
token = "$E"; expected = 6;
assertEqual( expected, Raphael.fn.get_string_number(token), "incorrect string number for: '" + token + "'" );
}},
testRecognizeChordAndTabNotation: function() { with(this) {
var notation = "Bm $3 4 4h5p3h4 5 $2 3 5 7 7h8p7 5/7 | A $4 7 9 $3 7 6 $5 9 $4 7h9 7 $5 9\7 5/7 | ";
var tabtype = jtab.characterize( notation );
assertEqual( 1, tabtype, "not recognised as chord and tab notation: '" + notation + "'" );
notation = "A7 $e 2 3 $B.3.$e.2";
tabtype = jtab.characterize( notation );
assertEqual( 1, tabtype, "not recognised as chord and tab notation: '" + notation + "'" );
notation = "Bm $3 4 4h5p3h4 5 $2 3 5 7 7h8p7 5/7 ";
tabtype = jtab.characterize( notation );
assertEqual( 1, tabtype, "not recognised as chord and tab notation: '" + notation + "'" );
}},
testRecognizeChordOnlyNotation: function() { with(this) {
var notation = "A B C D E F G / | Ab Bb Db Eb Gb | A# C# D# F# G# || Am A6 Am6 A69 A7 Am7 Amaj7 A7b5 A7#5 Am7b5 A7b9 A9 Am9 Amaj9 Aadd9 A13 Asus2 Asus4 Adim Adim7 Aaug";
var tabtype = jtab.characterize( notation );
assertEqual( 2, tabtype, "not recognised as chord-only notation: '" + notation + "'" );
}},
testRecognizeCustomChordOnlyNotation: function() { with(this) {
// let's try a C chord
var notation = "%X/X.4/3.2/2.0/0.1/1.0/0[C]";
var tabtype = jtab.characterize( notation );
assertEqual( 2, tabtype, "not recognised as custom-chord-only notation: '" + notation + "'" );
}},
testRecognizeCustomChordNoNameNotation: function() { with(this) {
// let's try a C chord, but don't include the name
var notation = "%X/X.4/3.2/2.0/0.1/1.0/0";
var tabtype = jtab.characterize( notation );
assertEqual( 2, tabtype, "not recognised as custom-chord-only notation: '" + notation + "'" );
}},
testRecognizeTabOnlyNotation: function() { with(this) {
var notation = "$1 2 3 $2.3.$1.2";
var tabtype = jtab.characterize( notation );
assertEqual( 3, tabtype, "not recognised as tab-only notation: '" + notation + "'" );
notation = "$e 2 3 $B.3.$e.2";
tabtype = jtab.characterize( notation );
assertEqual( 3, tabtype, "not recognised as tab-only notation: '" + notation + "'" );
notation = "X02220 8.10.10.9.8.8";
tabtype = jtab.characterize( notation );
assertEqual( 3, tabtype, "not recognised as tab-only notation: '" + notation + "'" );
}},
/*
The western scale is commonly found in 'western pop' music.
It consists of 12 notes that are 1 intervals apart to form an octave.
Eg. C, C#, D, Eb, E, F, F#, G, G#, A, Bb, C
Other notable scales such as the Pentatonic scale which consists of only 5 notes and
the Indian scale which has 24 notes.
We need to normalize the notes available to our western scale into base notes because
the following pairs are equivalent.
C# = Db
D# = Eb
F# = Gb
G# = Ab
A# = Bb
It is just a matter of convention when we favoured C#, Eb, F#, G#, Bb over their
equivalents in rendering our base notes.
*/
testWesternScale: function() { with(this) {
var scale = jtab.WesternScale;
assertNotUndefined( scale, "jtab.WesternScale should be valid" );
}},
testWesternScaleBaseNotes: function() { with(this) {
var baseNotes = jtab.WesternScale.BaseNotes;
assertNotUndefined( baseNotes, "jtab.WesternScale.BaseNotes should be valid" );
var validBaseNotes = {
'C' : [ 'C' , 'C', 0 ],
'C#': [ 'C#', 'C', 1 ],
'Db': [ 'C#', 'C', 1 ],
'D' : [ 'D' , 'D', 0 ],
'D#': [ 'Eb', 'D', 1 ],
'Eb': [ 'Eb', 'D', 1 ],
'E' : [ 'E' , 'E', 0 ],
'F' : [ 'F' , 'E', 1 ],
'F#': [ 'F#', 'E', 2 ],
'Gb': [ 'F#', 'E', 2 ],
'G' : [ 'G' , 'G', 0 ],
'G#': [ 'G#', 'G', 1 ],
'Ab': [ 'G#', 'G', 1 ],
'A' : [ 'A' , 'A', 0 ],
'A#': [ 'Bb', 'A', 1 ],
'Bb': [ 'Bb', 'A', 1 ],
'B' : [ 'B' , 'A', 2 ]
};
assertHashEqual( validBaseNotes, baseNotes, "jtab.WesternScale.BaseNotes should have correct mappings" );
}},
testWesternScaleBaseIntervals: function() { with(this) {
var baseIntervals = jtab.WesternScale.BaseIntervals;
assertNotUndefined( baseIntervals, "jtab.WesternScale.BaseIntervals should be valid" );
var validBaseIntervals = ['C', 'C#', 'D', 'Eb', 'E', 'F', 'F#', 'G', 'G#', 'A', 'Bb', 'B'];
assertHashEqual( validBaseIntervals, baseIntervals, "jtab.WesternScale.BaseIntervals should have correct 12 notes" );
}},
testChordsAreBasedOnWesternScale: function() { with(this) {
var msg = "Chords should be based on the western scale";
var chord = new jtabChord('C');
assertEqual( jtab.WesternScale, chord.scale, msg );
assertEqual( jtab.WesternScale.BaseNotes, chord.baseNotes, msg );
}},
testChordListIsAvailable: function() { with(this) {
var msg = "jtab.ChordLists should be an array of all chord names";
var chordList = jtab.ChordList();
assertInstanceOf( Array, chordList, msg );
}},
testChordListContainsValidChords: function() { with(this) {
var msg = "jtab.ChordLists should only contain valid chord names";
var chordList = jtab.ChordList();
for (var key = 0; key < chordList.length; key++) {
var token = chordList[key];
assertEqual( "string", typeof(token), token + " expect a String" );
var chord = new jtabChord(token);
assert( chord.isValid, "jtabChord('" + token + "') should be valid" );
}
}},
/*
In our CAGED system, we'll be using positions as defined in the following matrix
C = position 1
A = position 2
G = position 3
E = position 4
D = position 5
As such position 1 can also be called the 'C shape' position, position 2 the
'A shape' position, etc.
Playing different chord voicings then becomes nothing more than just shifting the
appropriate shapes around to coincide the shape's root note with the desired chord's
root note on the fretboard.
Eg.
Fret 0 X_R_______O
|_|_|_|_|_|
|_|_1_2_3_|
Fret 3 |_|_|_|_|_|
|_|_|_|_|_|
An 'A shaped' A major where its root note is at 'R'
Fret 0 X__________
|_|_|_|_|_|
|_R_|_|_|_1
Fret 3 |_|_|_|_|_|
|_|_2_3_4_|
An 'A shaped' B major with root of A shape over B note on 5th string
Position/shape can be defined in our chord token,
Eg. C:1, Cmaj7:3, etc.
where the numbers 1-5 after the ':' in token reflects the desired position/shape.
If in the absence of specified position/shape in token, we'll use the most playable
shape as the desired chord's position/shape. In general,
- Chords with root note within C, A, G, E, D will take the shape of it's root note except
* major 7ths
* minor chords
* dominants above 7ths, eg. C9, C11, etc.
* augmented chords
* diminished chords
- E & A shapes (good for barred chords) will be considered for exceptions above
- Chords with root note that falls within B, Bb, C#, Eb will use A shape
- Chords with root note that falls within F, F#, G# will take E shape
*/
testRecognizingRootNoteOfChordFromToken: function() { with(this) {
var msg = "Root note of chord should be correct";
var chord = new jtabChord('C');
assertEqual( 'C', chord.rootNote, msg );
chord = new jtabChord('C#');
assertEqual( 'C#', chord.rootNote, msg );
chord = new jtabChord('C#m');
assertEqual( 'C#', chord.rootNote, msg );
chord = new jtabChord('C#maj7');
assertEqual( 'C#', chord.rootNote, msg );
chord = new jtabChord('C#maj7:1');
assertEqual( 'C#', chord.rootNote, msg );
chord = new jtabChord('Db');
assertEqual( 'Db', chord.rootNote, msg );
chord = new jtabChord('Dbmaj7');
assertEqual( 'Db', chord.rootNote, msg );
chord = new jtabChord('Dbmaj7:2');
assertEqual( 'Db', chord.rootNote, msg );
}},
testSettingCagedPositionFromToken: function() { with(this) {
var msg = "Caged position should follow position found in token";
var chord = new jtabChord('C:1');
var cagedPos = chord.cagedPos;
assertNotUndefined( cagedPos );
assertEqual( 1, cagedPos, msg );
chord = new jtabChord('C:2');
cagedPos = chord.cagedPos;
assertEqual( 2, cagedPos, msg );
chord = new jtabChord('C:3');
cagedPos = chord.cagedPos;
assertEqual( 3, cagedPos, msg );
chord = new jtabChord('C:4');
cagedPos = chord.cagedPos;
assertEqual( 4, cagedPos, msg );
}},
testSettingCagedBaseFromToken: function() { with(this) {
var msg = "Caged base fret position should derived from root note";
var chord = new jtabChord('C');
var cagedBaseShape = chord.cagedBaseShape;
assertNotUndefined( cagedBaseShape );
assertEqual( 'C', cagedBaseShape, msg );
chord = new jtabChord('C#');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'C', cagedBaseShape, msg);
chord = new jtabChord('D');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'D', cagedBaseShape, msg);
chord = new jtabChord('D#');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'D', cagedBaseShape, msg);
chord = new jtabChord('E');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'E', cagedBaseShape, msg);
chord = new jtabChord('Eb');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'D', cagedBaseShape, msg);
chord = new jtabChord('F');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'E', cagedBaseShape, msg);
chord = new jtabChord('F#');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'E', cagedBaseShape, msg);
chord = new jtabChord('G');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'G', cagedBaseShape, msg);
chord = new jtabChord('G#');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'G', cagedBaseShape, msg);
chord = new jtabChord('A');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'A', cagedBaseShape, msg);
chord = new jtabChord('A#');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'A', cagedBaseShape, msg);
chord = new jtabChord('Bb');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'A', cagedBaseShape, msg);
chord = new jtabChord('B');
cagedBaseShape = chord.cagedBaseShape;
assertEqual( 'A', cagedBaseShape, msg);
}},
testChord_C_fingering: function() { with(this) {
var token = 'C';
var modelChordArray = [ 0, [-1 ], [3,3], [2,2], [0 ], [1,1], [0 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( ! c.isCaged, "jtabChord('" + token + "') should not be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testCustomChord_Bm7b5_fingering: function() { with(this) {
var token = "%7/2.X/X.7/3.7/4.6/1.X/X[Bm7b5]";
var modelChordArray = [ 5, [7,2], [-1 ], [7,3], [7,4], [6,1], [-1 ]]
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCustom, "jtabChord('" + token + "') should be custom chord" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testCustomChord_F_fingering: function() { with(this) {
var token = "%8/2.X/X.7/1.10/4.X/X.X/X[F]";
var modelChordArray = [ 6, [8,2], [-1 ], [7,1], [10,4], [-1 ], [-1 ]]
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCustom, "jtabChord('" + token + "') should be custom chord" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testCustomChord_No_Name: function() { with(this) {
var token = "%0/0.2/2.3/2.1/1.0/0.0/0";
var modelChordArray = [ 0, [0,0], [2,2], [3,2], [1,1], [0,0], [0,0]]
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCustom, "jtabChord('" + token + "') should be custom chord" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testCustomChord_E_fingering: function() { with(this) {
var token = "%0/0.2/2.3/2.1/1.0/0.0/0[E]";
var modelChordArray = [ 0, [0,0], [2,2], [3,2], [1,1], [0,0], [0,0]]
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCustom, "jtabChord('" + token + "') should be custom chord" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_C1_fingering: function() { with(this) {
var token = 'C:1';
var modelChordArray = [ 0, [-1 ], [3,3], [2,2], [0 ], [1,1], [0 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_C2_fingering: function() { with(this) {
var token = 'C:2';
var modelChordArray = [ 2, [-1,-1 ], [3,1], [5,2], [5,3], [5,4], [3,1] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_Cm_fingering: function() { with(this) {
var token = 'Cm';
var modelChordArray = [ 0, [-1 ], [3,4], [1,2], [0 ], [1,1], [-1 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( ! c.isCaged, "jtabChord('" + token + "') should not be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_Cm1_fingering: function() { with(this) {
var token = 'Cm:1';
var modelChordArray = [ 0, [-1 ], [3,4], [1,2], [0 ], [1,1], [-1 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_Cm2_fingering: function() { with(this) {
var token = 'Cm:2';
var modelChordArray = [ 2, [-1,-1 ], [3,1], [5,3], [5,4], [4,2], [3,1] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_A_fingering: function() { with(this) {
var token = 'A';
var modelChordArray = [ 0, [-1], [0 ], [2,2], [2,1], [2,3], [0 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( ! c.isCaged, "jtabChord('" + token + "') should not be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_A1_fingering: function() { with(this) {
var token = 'A:1';
var modelChordArray = [ 0, [-1], [0 ], [2,2], [2,1], [2,3], [0 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_A2_fingering: function() { with(this) {
var token = 'A:2';
var modelChordArray = [ 1, [5,3], [4,2], [2,1], [2,1], [2,1], [5,4 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_A3_fingering: function() { with(this) {
var token = 'A:3';
var modelChordArray = [ 4, [5,1], [7,3], [7,4], [6,2], [5,1], [5,1 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_Dm7b5_fingering: function() { with(this) {
var token = 'Dm7b5';
var modelChordArray = [ 0, [-1 ], [-1 ], [0 ], [1,1], [1,1], [1,1] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( ! c.isCaged, "jtabChord('" + token + "') should not be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_Dm7b5p2_fingering: function() { with(this) {
var token = 'Dm7b5:2';
var modelChordArray = [ 1, [-1, null], [5,1 ], [6,3], [5,2], [6,4], [-1, null] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( c.isCaged, "jtabChord('" + token + "') should be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_AddChord_insert: function() { with(this) {
var token = 'ATest';
var modelChordArrayNew = [ 0, [-1], [0 ], [2,3], [2,2], [2,1], [0 ] ];
var c = new jtabChord(token);
assert( !c.isValid, "jtabChord('" + token + "') should not initially be valid" );
jtab.AddChord(token, [modelChordArrayNew]);
c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid after insert" );
assertHashEqual( modelChordArrayNew, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}},
testChord_AddChord_update: function() { with(this) {
var token = 'A';
var modelChordArray = [ 0, [-1], [0 ], [2,2], [2,1], [2,3], [0 ] ];
var modelChordArrayNew = [ 0, [-1], [0 ], [2,2], [2,2], [2,3], [0 ] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should initially be valid" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray before update" );
jtab.AddChord(token, [modelChordArrayNew]);
c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid after update" );
assertHashEqual( modelChordArrayNew, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray after update" );
}},
testChord_Csharpm_fingering: function() { with(this) {
var token = 'C#m';
var modelChordArray = [ 0, [-1 ], [-1], [2,2], [1,1], [2,3], [0] ];
var c = new jtabChord(token);
assert( c.isValid, "jtabChord('" + token + "') should be valid" );
assert( ! c.isCaged, "jtabChord('" + token + "') should not be CAGED" );
assertHashEqual( modelChordArray, c.chordArray, "jtabChord('" + token + "') returned incorrect chordArray" );
}}
});
// ]]>
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