angular-cn/modules/angular2/test/render/dom/compiler/directive_parser_spec.js

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import {describe, beforeEach, it, xit, expect, iit, ddescribe, el} from 'angular2/test_lib';
import {isPresent, assertionsEnabled} from 'angular2/src/facade/lang';
import {ListWrapper, MapWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
import {DirectiveParser} from 'angular2/src/render/dom/compiler/directive_parser';
import {CompilePipeline} from 'angular2/src/render/dom/compiler/compile_pipeline';
import {CompileStep} from 'angular2/src/render/dom/compiler/compile_step';
import {CompileElement} from 'angular2/src/render/dom/compiler/compile_element';
import {CompileControl} from 'angular2/src/render/dom/compiler/compile_control';
import {ViewDefinition, DirectiveMetadata} from 'angular2/src/render/api';
import {Lexer, Parser} from 'angular2/change_detection';
export function main() {
describe('DirectiveParser', () => {
var parser, annotatedDirectives;
beforeEach( () => {
annotatedDirectives = [
someComponent,
someComponent2,
someComponent3,
someViewport,
someViewport2,
someDecorator,
someDecoratorIgnoringChildren,
someDecoratorWithProps,
someDecoratorWithHostProperties,
someDecoratorWithEvents,
someDecoratorWithGlobalEvents
];
parser = new Parser(new Lexer());
});
function createPipeline(propertyBindings = null) {
return new CompilePipeline([
new MockStep( (parent, current, control) => {
if (isPresent(propertyBindings)) {
StringMapWrapper.forEach(propertyBindings, (ast, name) => {
current.bindElement().bindProperty(name, ast);
});
}
}),
new DirectiveParser(parser, annotatedDirectives)
]);
}
function process(el, propertyBindings = null) {
var pipeline = createPipeline(propertyBindings);
return ListWrapper.map(pipeline.process(el), (ce) => ce.inheritedElementBinder );
}
it('should not add directives if they are not used', () => {
var results = process(el('<div></div>'));
expect(results[0]).toBe(null);
});
it('should detect directives in attributes', () => {
var results = process(el('<div some-decor></div>'));
expect(results[0].directives[0].directiveIndex).toBe(
annotatedDirectives.indexOf(someDecorator)
);
});
it('should detect directives with multiple attributes', () => {
var results = process(el('<input type=text control=one></input>'));
expect(results[0].directives[0].directiveIndex).toBe(
annotatedDirectives.indexOf(someComponent3)
);
});
it('should compile children by default', () => {
var results = createPipeline().process(el('<div some-decor></div>'));
expect(results[0].compileChildren).toEqual(true);
});
it('should stop compiling children when specified in the directive config', () => {
var results = createPipeline().process(el('<div some-decor-ignoring-children></div>'));
expect(results[0].compileChildren).toEqual(false);
});
it('should bind directive properties from bound properties', () => {
var results = process(
el('<div some-decor-props></div>'),
{
'elProp': parser.parseBinding('someExpr', '')
}
);
var directiveBinding = results[0].directives[0];
expect(MapWrapper.get(directiveBinding.propertyBindings, 'dirProp').source)
.toEqual('someExpr');
});
it('should bind directive properties with pipes', () => {
var results = process(
el('<div some-decor-props></div>'),
{
'elProp': parser.parseBinding('someExpr', '')
}
);
var directiveBinding = results[0].directives[0];
var pipedProp = MapWrapper.get(directiveBinding.propertyBindings, 'doubleProp');
var simpleProp = MapWrapper.get(directiveBinding.propertyBindings, 'dirProp');
expect(pipedProp.ast.name).toEqual('double');
expect(pipedProp.ast.exp).toEqual(simpleProp.ast);
expect(simpleProp.source).toEqual('someExpr');
});
it('should bind directive properties from attribute values', () => {
var results = process(
el('<div some-decor-props el-prop="someValue"></div>')
);
var directiveBinding = results[0].directives[0];
var simpleProp = MapWrapper.get(directiveBinding.propertyBindings, 'dirProp');
expect(simpleProp.source).toEqual('someValue');
});
it('should bind host directive properties', () => {
var element = el('<input some-decor-with-host-props>');
var results = process(element);
var directiveBinding = results[0].directives[0];
var ast = MapWrapper.get(directiveBinding.hostPropertyBindings, 'hostProperty');
expect(ast.source).toEqual('dirProp');
});
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it('should read attribute values', () => {
var element = el('<input some-decor-props some-attr="someValue">');
var results = process(element);
expect(MapWrapper.get(results[0].readAttributes, 'some-attr')).toEqual('someValue');
});
it('should bind directive events', () => {
var results = process(
el('<div some-decor-events></div>')
);
var directiveBinding = results[0].directives[0];
expect(directiveBinding.eventBindings.length).toEqual(1);
var eventBinding = directiveBinding.eventBindings[0];
expect(eventBinding.fullName).toEqual('click');
expect(eventBinding.source.source).toEqual('doIt()');
});
it('should bind directive global events', () => {
var results = process(
el('<div some-decor-globalevents></div>')
);
var directiveBinding = results[0].directives[0];
expect(directiveBinding.eventBindings.length).toEqual(1);
var eventBinding = directiveBinding.eventBindings[0];
expect(eventBinding.fullName).toEqual('window:resize');
expect(eventBinding.source.source).toEqual('doItGlobal()');
});
//TODO: assertions should be enabled when running tests: https://github.com/angular/angular/issues/1340
describe('viewport directives', () => {
it('should not allow multiple viewport directives on the same element', () => {
expect( () => {
process(
el('<template some-vp some-vp2></template>')
);
}).toThrowError('Only one viewport directive is allowed per element - check '
+ (assertionsEnabled() ? '<template some-vp some-vp2>' : 'null'));
});
it('should not allow viewport directives on non <template> elements', () => {
expect( () => {
process(
el('<div some-vp></div>')
);
}).toThrowError('Viewport directives need to be placed on <template> elements or elements with template attribute - check '
+ (assertionsEnabled() ? '<div some-vp>' : 'null'));
});
});
//TODO: assertions should be enabled when running tests: https://github.com/angular/angular/issues/1340
describe('component directives', () => {
it('should save the component id', () => {
var results = process(
el('<div some-comp></div>')
);
expect(results[0].componentId).toEqual('someComponent');
});
it('should not allow multiple component directives on the same element', () => {
expect( () => {
process(
el('<div some-comp some-comp2></div>')
);
}).toThrowError('Only one component directive is allowed per element - check '
+ (assertionsEnabled() ? '<div some-comp some-comp2>' : 'null'));
});
it('should not allow component directives on <template> elements', () => {
expect( () => {
process(
el('<template some-comp></template>')
);
}).toThrowError('Only template directives are allowed on template elements - check '
+ (assertionsEnabled() ? '<template some-comp>' : 'null'));
});
});
});
}
class MockStep extends CompileStep {
processClosure:Function;
constructor(process) {
super();
this.processClosure = process;
}
process(parent:CompileElement, current:CompileElement, control:CompileControl) {
this.processClosure(parent, current, control);
}
}
var someComponent = new DirectiveMetadata({
selector: '[some-comp]',
id: 'someComponent',
type: DirectiveMetadata.COMPONENT_TYPE
});
var someComponent2 = new DirectiveMetadata({
selector: '[some-comp2]',
id: 'someComponent2',
type: DirectiveMetadata.COMPONENT_TYPE
});
var someComponent3 = new DirectiveMetadata({
selector: 'input[type=text][control]',
id: 'someComponent3',
type: DirectiveMetadata.COMPONENT_TYPE
});
var someViewport = new DirectiveMetadata({
selector: '[some-vp]',
id: 'someViewport',
type: DirectiveMetadata.VIEWPORT_TYPE
});
var someViewport2 = new DirectiveMetadata({
selector: '[some-vp2]',
id: 'someViewport2',
type: DirectiveMetadata.VIEWPORT_TYPE
});
var someDecorator = new DirectiveMetadata({
selector: '[some-decor]'
});
var someDecoratorIgnoringChildren = new DirectiveMetadata({
selector: '[some-decor-ignoring-children]',
compileChildren: false
});
var someDecoratorWithProps = new DirectiveMetadata({
selector: '[some-decor-props]',
properties: MapWrapper.createFromStringMap({
'dirProp': 'elProp',
'doubleProp': 'elProp | double'
}),
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readAttributes: ['some-attr']
});
var someDecoratorWithHostProperties = new DirectiveMetadata({
selector: '[some-decor-with-host-props]',
hostProperties: MapWrapper.createFromStringMap({
'dirProp': 'hostProperty'
})
});
var someDecoratorWithEvents = new DirectiveMetadata({
selector: '[some-decor-events]',
hostListeners: MapWrapper.createFromStringMap({
'click': 'doIt()'
})
});
var someDecoratorWithGlobalEvents = new DirectiveMetadata({
selector: '[some-decor-globalevents]',
hostListeners: MapWrapper.createFromStringMap({
'window:resize': 'doItGlobal()'
})
});