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test($interpolate): adding tests for watching $interpolate functions

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Closes #10119
This commit is contained in:
Jason Bedard
2014-11-18 22:39:42 -08:00
committed by Pawel Kozlowski
parent 32806caf13
commit 1b640f9665
1 changed files with 68 additions and 0 deletions
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68
test/ng/interpolateSpec.js
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@@ -58,6 +58,74 @@ describe('$interpolate', function() {
expect($interpolate("Hello, world!{{bloop}}")()).toBe("Hello, world!");
}));
describe('watching', function() {
it('should be watchable with any input types', inject(function($interpolate, $rootScope) {
var lastVal;
$rootScope.$watch($interpolate('{{i}}'), function(val) {
lastVal = val;
});
$rootScope.$apply();
expect(lastVal).toBe('');
$rootScope.i = null;
$rootScope.$apply();
expect(lastVal).toBe('');
$rootScope.i = '';
$rootScope.$apply();
expect(lastVal).toBe('');
$rootScope.i = 0;
$rootScope.$apply();
expect(lastVal).toBe('0');
$rootScope.i = [0];
$rootScope.$apply();
expect(lastVal).toBe('[0]');
$rootScope.i = {a: 1, b: 2};
$rootScope.$apply();
expect(lastVal).toBe('{"a":1,"b":2}');
}));
it('should be watchable with literal values', inject(function($interpolate, $rootScope) {
var lastVal;
$rootScope.$watch($interpolate('{{1}}{{"2"}}{{true}}{{[false]}}{{ {a: 2} }}'), function(val) {
lastVal = val;
});
$rootScope.$apply();
expect(lastVal).toBe('12true[false]{"a":2}');
expect($rootScope.$countWatchers()).toBe(0);
}));
it('should respect one-time bindings for each individual expression', inject(function($interpolate, $rootScope) {
var calls = [];
$rootScope.$watch($interpolate('{{::a | limitTo:1}} {{::s}} {{::i | number}}'), function(val) {
calls.push(val);
});
$rootScope.$apply();
expect(calls.length).toBe(1);
$rootScope.a = [1];
$rootScope.$apply();
expect(calls.length).toBe(2);
expect(calls[1]).toBe('[1] ');
$rootScope.a = [0];
$rootScope.$apply();
expect(calls.length).toBe(2);
$rootScope.i = $rootScope.a = 123;
$rootScope.s = 'str!';
$rootScope.$apply();
expect(calls.length).toBe(3);
expect(calls[2]).toBe('[1] str! 123');
expect($rootScope.$countWatchers()).toBe(0);
}));
});
describe('interpolation escaping', function() {
var obj;