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'use strict';
describe('ng-class', function() {
var element;
afterEach(function() {
dealoc(element);
});
it('should add new and remove old classes dynamically', inject(function($rootScope, $compile) {
element = $compile('<div class="existing" ng-class="dynClass"></div>')($rootScope);
$rootScope.dynClass = 'A';
$rootScope.$digest();
expect(element.hasClass('existing')).toBe(true);
expect(element.hasClass('A')).toBe(true);
$rootScope.dynClass = 'B';
$rootScope.$digest();
expect(element.hasClass('existing')).toBe(true);
expect(element.hasClass('A')).toBe(false);
expect(element.hasClass('B')).toBe(true);
delete $rootScope.dynClass;
$rootScope.$digest();
expect(element.hasClass('existing')).toBe(true);
expect(element.hasClass('A')).toBe(false);
expect(element.hasClass('B')).toBe(false);
}));
it('should support adding multiple classes via an array', inject(function($rootScope, $compile) {
element = $compile('<div class="existing" ng-class="[\'A\', \'B\']"></div>')($rootScope);
$rootScope.$digest();
expect(element.hasClass('existing')).toBeTruthy();
expect(element.hasClass('A')).toBeTruthy();
expect(element.hasClass('B')).toBeTruthy();
}));
it('should support adding multiple classes conditionally via a map of class names to boolean' +
'expressions', inject(function($rootScope, $compile) {
var element = $compile(
'<div class="existing" ' +
'ng-class="{A: conditionA, B: conditionB(), AnotB: conditionA&&!conditionB}">' +
'</div>')($rootScope);
$rootScope.conditionA = true;
$rootScope.$digest();
expect(element.hasClass('existing')).toBeTruthy();
expect(element.hasClass('A')).toBeTruthy();
expect(element.hasClass('B')).toBeFalsy();
expect(element.hasClass('AnotB')).toBeTruthy();
$rootScope.conditionB = function() { return true };
$rootScope.$digest();
expect(element.hasClass('existing')).toBeTruthy();
expect(element.hasClass('A')).toBeTruthy();
expect(element.hasClass('B')).toBeTruthy();
expect(element.hasClass('AnotB')).toBeFalsy();
}));
it('should support adding multiple classes via a space delimited string', inject(function($rootScope, $compile) {
element = $compile('<div class="existing" ng-class="\'A B\'"></div>')($rootScope);
$rootScope.$digest();
expect(element.hasClass('existing')).toBeTruthy();
expect(element.hasClass('A')).toBeTruthy();
expect(element.hasClass('B')).toBeTruthy();
}));
it('should preserve class added post compilation with pre-existing classes', inject(function($rootScope, $compile) {
element = $compile('<div class="existing" ng-class="dynClass"></div>')($rootScope);
$rootScope.dynClass = 'A';
$rootScope.$digest();
expect(element.hasClass('existing')).toBe(true);
// add extra class, change model and eval
element.addClass('newClass');
$rootScope.dynClass = 'B';
$rootScope.$digest();
expect(element.hasClass('existing')).toBe(true);
expect(element.hasClass('B')).toBe(true);
expect(element.hasClass('newClass')).toBe(true);
}));
it('should preserve class added post compilation without pre-existing classes"', inject(function($rootScope, $compile) {
element = $compile('<div ng-class="dynClass"></div>')($rootScope);
$rootScope.dynClass = 'A';
$rootScope.$digest();
expect(element.hasClass('A')).toBe(true);
// add extra class, change model and eval
element.addClass('newClass');
$rootScope.dynClass = 'B';
$rootScope.$digest();
expect(element.hasClass('B')).toBe(true);
expect(element.hasClass('newClass')).toBe(true);
}));
it('should preserve other classes with similar name"', inject(function($rootScope, $compile) {
element = $compile('<div class="ui-panel ui-selected" ng-class="dynCls"></div>')($rootScope);
$rootScope.dynCls = 'panel';
$rootScope.$digest();
$rootScope.dynCls = 'foo';
$rootScope.$digest();
expect(element[0].className).toBe('ui-panel ui-selected ng-scope foo');
}));
it('should not add duplicate classes', inject(function($rootScope, $compile) {
element = $compile('<div class="panel bar" ng-class="dynCls"></div>')($rootScope);
$rootScope.dynCls = 'panel';
$rootScope.$digest();
expect(element[0].className).toBe('panel bar ng-scope');
}));
it('should remove classes even if it was specified via class attribute', inject(function($rootScope, $compile) {
element = $compile('<div class="panel bar" ng-class="dynCls"></div>')($rootScope);
$rootScope.dynCls = 'panel';
$rootScope.$digest();
$rootScope.dynCls = 'window';
$rootScope.$digest();
expect(element[0].className).toBe('bar ng-scope window');
}));
it('should remove classes even if they were added by another code', inject(function($rootScope, $compile) {
element = $compile('<div ng-class="dynCls"></div>')($rootScope);
$rootScope.dynCls = 'foo';
$rootScope.$digest();
element.addClass('foo');
$rootScope.dynCls = '';
$rootScope.$digest();
}));
it('should convert undefined and null values to an empty string', inject(function($rootScope, $compile) {
element = $compile('<div ng-class="dynCls"></div>')($rootScope);
$rootScope.dynCls = [undefined, null];
$rootScope.$digest();
}));
it('should ng-class odd/even', inject(function($rootScope, $compile) {
element = $compile('<ul><li ng-repeat="i in [0,1]" class="existing" ng-class-odd="\'odd\'" ng-class-even="\'even\'"></li><ul>')($rootScope);
$rootScope.$digest();
var e1 = jqLite(element[0].childNodes[1]);
var e2 = jqLite(element[0].childNodes[2]);
expect(e1.hasClass('existing')).toBeTruthy();
expect(e1.hasClass('odd')).toBeTruthy();
expect(e2.hasClass('existing')).toBeTruthy();
expect(e2.hasClass('even')).toBeTruthy();
}));
it('should allow both ng-class and ng-class-odd/even on the same element', inject(function($rootScope, $compile) {
element = $compile('<ul>' +
'<li ng-repeat="i in [0,1]" ng-class="\'plainClass\'" ' +
'ng-class-odd="\'odd\'" ng-class-even="\'even\'"></li>' +
'<ul>')($rootScope);
$rootScope.$apply();
var e1 = jqLite(element[0].childNodes[1]);
var e2 = jqLite(element[0].childNodes[2]);
expect(e1.hasClass('plainClass')).toBeTruthy();
expect(e1.hasClass('odd')).toBeTruthy();
expect(e1.hasClass('even')).toBeFalsy();
expect(e2.hasClass('plainClass')).toBeTruthy();
expect(e2.hasClass('even')).toBeTruthy();
expect(e2.hasClass('odd')).toBeFalsy();
}));
it('should allow both ng-class and ng-class-odd/even with multiple classes', inject(function($rootScope, $compile) {
element = $compile('<ul>' +
'<li ng-repeat="i in [0,1]" ng-class="[\'A\', \'B\']" ' +
'ng-class-odd="[\'C\', \'D\']" ng-class-even="[\'E\', \'F\']"></li>' +
'<ul>')($rootScope);
$rootScope.$apply();
var e1 = jqLite(element[0].childNodes[1]);
var e2 = jqLite(element[0].childNodes[2]);
expect(e1.hasClass('A')).toBeTruthy();
expect(e1.hasClass('B')).toBeTruthy();
expect(e1.hasClass('C')).toBeTruthy();
expect(e1.hasClass('D')).toBeTruthy();
expect(e1.hasClass('E')).toBeFalsy();
expect(e1.hasClass('F')).toBeFalsy();
expect(e2.hasClass('A')).toBeTruthy();
expect(e2.hasClass('B')).toBeTruthy();
expect(e2.hasClass('E')).toBeTruthy();
expect(e2.hasClass('F')).toBeTruthy();
expect(e2.hasClass('C')).toBeFalsy();
expect(e2.hasClass('D')).toBeFalsy();
}));
});
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