Unit test for PlusMinus binary/unary
A unit test to check that the PlusMinus operator is correctly
interpreted as unary or binary depending on the preceding sibling
diff --git a/test/unit/css.test.js b/test/unit/css.test.js
index 223895f..57745a4 100644
--- a/test/unit/css.test.js
+++ b/test/unit/css.test.js
@@ -53,4 +53,29 @@
var testVal = parseFloat(mqF.css('margin-right')) - parseFloat(mqF.css('margin-left'));
assert.ok(testVal > 0, 'this should be truthy') ;
});
+
+ test('unary PlusMinus before separator', function () {
+ var mq = MQ.MathField($('<span></span>').appendTo('#mock')[0]);
+ mq.latex('(-1,-1-1)-1,(+1;+1+1)+1,(\\pm{}1,\\pm{}1\\pm{}1)\\pm{}1');
+ var spans = $(mq.el()).find('.mq-root-block').find('span');
+ assert.ok(spans.length >= 35, 'PlusMinus expression parsed incorrectly');
+
+ function isBinaryOperator(i) { return $(spans[i]).hasClass('mq-binary-operator'); }
+ function assertBinaryOperator(i, s) { assert.ok(isBinaryOperator(i), '"' + s + '" should be binary'); }
+ function assertUnaryOperator(i, s) { assert.ok(!isBinaryOperator(i), '"' + s + '" should be unary'); }
+
+ assertUnaryOperator(1, '(-');
+ assertUnaryOperator(4, '(-1,-');
+ assertBinaryOperator(6, '(-1,-1-');
+ assertBinaryOperator(9, '(-1,-1-1)-');
+ assertUnaryOperator(13, '(-1,-1-1)-1,(+');
+ assertUnaryOperator(16, '(-1,-1-1)-1,(+1;+');
+ assertBinaryOperator(18, '(-1,-1-1)-1,(+1;+1+');
+ assertBinaryOperator(21, '(-1,-1-1)-1,(+1;+1+1)+');
+ assertUnaryOperator(25, '(-1,-1-1)-1,(+1;+1+1)+1,(\pm');
+ assertUnaryOperator(28, '(-1,-1-1)-1,(+1;+1+1)+1,(\pm1,\pm');
+ assertBinaryOperator(30, '(-1,-1-1)-1,(+1;+1+1)+1,(\pm1,\pm1\pm');
+ assertBinaryOperator(33, '(-1,-1-1)-1,(+1;+1+1)+1,(\pm1,\pm1\pm1)\pm');
+
+ });
});
