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build/node_modules/cheerio/test/api/css.js

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+var expect = require('expect.js');
+var cheerio = require('../..');
+
+describe('$(...)', function() {
+
+  describe('.css', function() {
+    it('(prop): should return a css property value', function() {
+      var el = cheerio('<li style="hai: there">');
+      expect(el.css('hai')).to.equal('there');
+    });
+
+    it('([prop1, prop2]): should return the specified property values as an object', function() {
+      var el = cheerio('<li style="margin: 1px; padding: 2px; color: blue;">');
+      expect(el.css(['margin', 'color'])).to.eql({ margin: '1px', color: 'blue' });
+    });
+
+    it('(prop, val): should set a css property', function() {
+      var el = cheerio('<li style="margin: 0;"></li><li></li>');
+      el.css('color', 'red');
+      expect(el.attr('style')).to.equal('margin: 0; color: red;');
+      expect(el.eq(1).attr('style')).to.equal('color: red;');
+    });
+
+    it('(prop, ""): should unset a css property', function() {
+      var el = cheerio('<li style="padding: 1px; margin: 0;">');
+      el.css('padding', '');
+      expect(el.attr('style')).to.equal('margin: 0;');
+    });
+
+    it('(prop): should not mangle embedded urls', function() {
+      var el = cheerio('<li style="background-image:url(http://example.com/img.png);">');
+      expect(el.css('background-image')).to.equal('url(http://example.com/img.png)');
+    });
+
+    it('(prop): should ignore blank properties', function() {
+      var el = cheerio('<li style=":#ccc;color:#aaa;">');
+      expect(el.css()).to.eql({color:'#aaa'});
+    });
+
+    it('(prop): should ignore blank values', function() {
+      var el = cheerio('<li style="color:;position:absolute;">');
+      expect(el.css()).to.eql({position:'absolute'});
+    });
+
+    describe('(prop, function):', function() {
+      beforeEach(function() {
+        this.$el = cheerio('<div style="margin: 0px;"></div><div style="margin: 1px;"></div><div style="margin: 2px;">');
+      });
+
+      it('should iterate over the selection', function() {
+        var count = 0;
+        var $el = this.$el;
+        this.$el.css('margin', function(idx, value) {
+          expect(idx).to.equal(count);
+          expect(value).to.equal(count + 'px');
+          expect(this).to.equal($el[count]);
+          count++;
+        });
+        expect(count).to.equal(3);
+      });
+
+      it('should set each attribute independently', function() {
+        var values = ['4px', '', undefined];
+        this.$el.css('margin', function(idx) {
+          return values[idx];
+        });
+        expect(this.$el.eq(0).attr('style')).to.equal('margin: 4px;');
+        expect(this.$el.eq(1).attr('style')).to.equal('');
+        expect(this.$el.eq(2).attr('style')).to.equal('margin: 2px;');
+      });
+    });
+
+    it('(obj): should set each key and val', function() {
+      var el = cheerio('<li style="padding: 0;"></li><li></li>');
+      el.css({ foo: 0 });
+      expect(el.eq(0).attr('style')).to.equal('padding: 0; foo: 0;');
+      expect(el.eq(1).attr('style')).to.equal('foo: 0;');
+    });
+
+    describe('parser', function(){
+      it('should allow any whitespace between declarations', function() {
+        var el = cheerio('<li style="one \t:\n 0;\n two \f\r:\v 1">');
+        expect(el.css(['one', 'two'])).to.eql({ one: 0, two: 1 });
+      });
+    });
+  });
+
+});