refactor($interpolate): improve interpolation service add documentation

1 files changed, 92 insertions, 0 deletions

diff --git a/test/service/interpolateSpec.js b/test/service/interpolateSpec.js
index 8644ee0a..d5f251ea 100644
--- a/test/service/interpolateSpec.js
+++ b/test/service/interpolateSpec.js
@@ -13,9 +13,101 @@ describe('$interpolate', function() {
     expect($interpolate('some text', true)).toBeUndefined();
   }));
 
+  it('should suppress falsy objects', inject(function($interpolate) {
+    expect($interpolate('{{undefined}}')()).toEqual('');
+    expect($interpolate('{{null}}')()).toEqual('');
+    expect($interpolate('{{a.b}}')()).toEqual('');
+  }));
+
+  it('should jsonify objects', inject(function($interpolate) {
+    expect($interpolate('{{ {} }}')()).toEqual('{}');
+    expect($interpolate('{{ true }}')()).toEqual('true');
+    expect($interpolate('{{ false }}')()).toEqual('false');
+  }));
+
 
   it('should return interpolation function', inject(function($interpolate, $rootScope) {
     $rootScope.name = 'Misko';
     expect($interpolate('Hello {{name}}!')($rootScope)).toEqual('Hello Misko!');
   }));
+
+  describe('provider', function() {
+    beforeEach(module(function($interpolateProvider) {
+      $interpolateProvider.startSymbol('--');
+      $interpolateProvider.endSymbol('--');
+    }));
+
+    it('should not get confused with same markers', inject(function($interpolate) {
+      expect($interpolate('---').parts).toEqual(['---']);
+      expect($interpolate('----')()).toEqual('');
+      expect($interpolate('--1--')()).toEqual('1');
+    }));
+  });
+
+  describe('parseBindings', function() {
+    it('should Parse Text With No Bindings', inject(function($interpolate) {
+      var parts = $interpolate("a").parts;
+      expect(parts.length).toEqual(1);
+      expect(parts[0]).toEqual("a");
+    }));
+
+    it('should Parse Empty Text', inject(function($interpolate) {
+      var parts = $interpolate("").parts;
+      expect(parts.length).toEqual(1);
+      expect(parts[0]).toEqual("");
+    }));
+
+    it('should Parse Inner Binding', inject(function($interpolate) {
+      var parts = $interpolate("a{{b}}C").parts;
+      expect(parts.length).toEqual(3);
+      expect(parts[0]).toEqual("a");
+      expect(parts[1].exp).toEqual("b");
+      expect(parts[1]({b:123})).toEqual(123);
+      expect(parts[2]).toEqual("C");
+    }));
+
+    it('should Parse Ending Binding', inject(function($interpolate) {
+      var parts = $interpolate("a{{b}}").parts;
+      expect(parts.length).toEqual(2);
+      expect(parts[0]).toEqual("a");
+      expect(parts[1].exp).toEqual("b");
+      expect(parts[1]({b:123})).toEqual(123);
+    }));
+
+    it('should Parse Begging Binding', inject(function($interpolate) {
+      var parts = $interpolate("{{b}}c").parts;
+      expect(parts.length).toEqual(2);
+      expect(parts[0].exp).toEqual("b");
+      expect(parts[1]).toEqual("c");
+    }));
+
+    it('should Parse Loan Binding', inject(function($interpolate) {
+      var parts = $interpolate("{{b}}").parts;
+      expect(parts.length).toEqual(1);
+      expect(parts[0].exp).toEqual("b");
+    }));
+
+    it('should Parse Two Bindings', inject(function($interpolate) {
+      var parts = $interpolate("{{b}}{{c}}").parts;
+      expect(parts.length).toEqual(2);
+      expect(parts[0].exp).toEqual("b");
+      expect(parts[1].exp).toEqual("c");
+    }));
+
+    it('should Parse Two Bindings With Text In Middle', inject(function($interpolate) {
+      var parts = $interpolate("{{b}}x{{c}}").parts;
+      expect(parts.length).toEqual(3);
+      expect(parts[0].exp).toEqual("b");
+      expect(parts[1]).toEqual("x");
+      expect(parts[2].exp).toEqual("c");
+    }));
+
+    it('should Parse Multiline', inject(function($interpolate) {
+      var parts = $interpolate('"X\nY{{A\n+B}}C\nD"').parts;
+      expect(parts.length).toEqual(3);
+      expect(parts[0]).toEqual('"X\nY');
+      expect(parts[1].exp).toEqual('A\n+B');
+      expect(parts[2]).toEqual('C\nD"');
+    }));
+  });
 });