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describe('compiler', function(){
function element(html) {
return jQuery(html)[0];
}
var compiler, markup, directives, widgets, compile, log;
beforeEach(function(){
log = "";
directives = {
hello: function(expression, element){
log += "hello ";
return function() {
log += expression;
};
},
watch: function(expression, element){
return function() {
this.$watch(expression, function(val){
log += ":" + val;
});
};
}
};
markup = [];
widgets = {};
compiler = new Compiler(markup, directives, widgets);
compile = function(html){
var e = element("<div>" + html + "</div>");
var view = compiler.compile(e)(e);
view.init();
return view.scope;
};
});
it('should recognize a directive', function(){
var e = element('<div directive="expr" ignore="me"></div>');
directives.directive = function(expression, element){
log += "found";
expect(expression).toEqual("expr");
expect(element[0]).toEqual(e);
return function initFn() {
log += ":init";
};
};
var template = compiler.compile(e);
var init = template(e).init;
expect(log).toEqual("found");
init();
expect(log).toEqual("found:init");
});
it('should recurse to children', function(){
var scope = compile('<div><span hello="misko"/></div>');
expect(log).toEqual("hello misko");
});
it('should watch scope', function(){
var scope = compile('<span watch="name"/>');
expect(log).toEqual("");
scope.updateView();
scope.set('name', 'misko');
scope.updateView();
scope.updateView();
scope.set('name', 'adam');
scope.updateView();
scope.updateView();
expect(log).toEqual(":misko:adam");
});
it('should prevent descend', function(){
directives.stop = function(){ this.descend(false); };
var scope = compile('<span hello="misko" stop="true"><span hello="adam"/></span>');
expect(log).toEqual("hello misko");
});
it('should allow creation of templates', function(){
directives.duplicate = function(expr, element){
element.replaceWith(document.createComment("marker"));
element.removeAttr("duplicate");
var template = this.compile(element);
return function(marker) {
this.$addEval(function() {
marker.after(template(element.clone()).element);
});
};
};
var scope = compile('before<span duplicate="expr">x</span>after');
expect($(scope.element).html()).toEqual('before<!--marker-->after');
scope.updateView();
expect($(scope.element).html()).toEqual('before<!--marker--><span>x</span>after');
scope.updateView();
expect($(scope.element).html()).toEqual('before<!--marker--><span>x</span><span>x</span>after');
});
it('should allow for exculsive tags which suppress others', function(){
directives.exclusive = function(){
return function() {
log += ('exclusive');
};
};
directives.exclusive.exclusive = true;
compile('<span hello="misko", exclusive/>');
expect(log).toEqual('exclusive');
});
it('should process markup before directives', function(){
markup.push(function(text, textNode, parentNode) {
if (text == 'middle') {
expect(textNode.text()).toEqual(text);
parentNode.attr('hello', text);
textNode.text('replaced');
}
});
var scope = compile('before<span>middle</span>after');
expect(scope.element.innerHTML).toEqual('before<span hello="middle">replaced</span>after');
expect(log).toEqual("hello middle");
});
it('should replace widgets', function(){
widgets['NG:BUTTON'] = function(element) {
element.replaceWith('<div>button</div>', element);
return function(element) {
log += 'init';
};
};
var scope = compile('<ng:button>push me</ng:button>');
expect(scope.element.innerHTML).toEqual('<div>button</div>');
expect(log).toEqual('init');
});
});
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