blob: 3680d314b2a341413cb0bf77a760a31960d9d12a [file] [log] [blame]
suite('autoSubscript', function() {
var mq;
setup(function() {
mq = MQ.MathField($('<span></span>').appendTo('#mock')[0], {autoSubscriptNumerals: true});
rootBlock = mq.__controller.root;
controller = mq.__controller;
cursor = controller.cursor;
});
test('auto subscripting variables', function() {
mq.latex('x');
mq.typedText('2');
assert.equal(mq.latex(), 'x_2');
mq.typedText('3');
assert.equal(mq.latex(), 'x_{23}');
});
test('do not autosubscript functions', function() {
mq.latex('sin');
mq.typedText('2');
assert.equal(mq.latex(), '\\sin2');
mq.typedText('3');
assert.equal(mq.latex(), '\\sin23');
});
test('autosubscript exponentiated variables', function() {
mq.latex('x^2');
mq.typedText('2');
assert.equal(mq.latex(), 'x_2^2');
mq.typedText('3');
assert.equal(mq.latex(), 'x_{23}^2');
});
test('do not autosubscript exponentiated functions', function() {
mq.latex('sin^{2}');
mq.typedText('2');
assert.equal(mq.latex(), '\\sin^22');
mq.typedText('3');
assert.equal(mq.latex(), '\\sin^223');
});
test('do not autosubscript subscripted functions', function() {
mq.latex('sin_{10}');
mq.typedText('2');
assert.equal(mq.latex(), '\\sin_{10}2');
});
test('backspace through compound subscript', function() {
mq.latex('x_{2_2}');
//first backspace moves to cursor in subscript and peels it off
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x_2');
//second backspace clears out remaining subscript
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x_{ }');
//unpeel subscript
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x');
});
test('backspace through simple subscript', function() {
mq.latex('x_{2+3}');
assert.equal(cursor.parent, rootBlock, 'start in the root block');
//backspace peels off subscripts but stays at the root block level
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x_{2+}');
assert.equal(cursor.parent, rootBlock, 'backspace keeps us in the root block');
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x_2');
assert.equal(cursor.parent, rootBlock, 'backspace keeps us in the root block');
//second backspace clears out remaining subscript and unpeels
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x');
});
test('backspace through subscript & superscript with autosubscripting on', function() {
mq.latex('x_2^{32}');
//first backspace peels off the subscript
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x^{32}');
//second backspace goes into the exponent
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x^{32}');
//clear out exponent
mq.keystroke('Backspace');
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x^{ }');
//unpeel exponent
mq.keystroke('Backspace');
assert.equal(mq.latex(),'x');
});
});