add #hasProp, #removeProp from Request.Propfind closes #4

2 files changed, 35 insertions, 1 deletions

diff --git a/lib/caldav/request/propfind.js b/lib/caldav/request/propfind.js
index e54b669..e731b98 100644
--- a/lib/caldav/request/propfind.js
+++ b/lib/caldav/request/propfind.js
@@ -46,6 +46,37 @@
       this._props.push(this.template.tag(tagDesc, attr, content));
     },
 
+    /**
+     * Removes property from request.
+     * Must use same arguments as 'prop' to remove prop.
+     *
+     * @param {String|Array} tagDesc tag description.
+     * @param {Object} [attr] optional tag attrs.
+     * @param {Obj} [content] optional content.
+     */
+    removeProp: function(tagDesc, attr, content) {
+      var prop = this.template.tag(tagDesc, attr, content);
+      var idx = this._props.indexOf(prop);
+
+      if (idx !== -1) {
+        this._props.splice(idx, 1);
+        return true;
+      }
+      return false;
+    },
+
+    /**
+     * Checks if prop has been added to the request.
+     *
+     * @param {String|Array} tagDesc tag description.
+     * @param {Object} [attr] optional tag attrs.
+     * @param {Obj} [content] optional content.
+     */
+    hasProp: function(tagDesc, attr, content) {
+      var prop = this.template.tag(tagDesc, attr, content);
+      return this._props.indexOf(prop) !== -1;
+    },
+
     _createPayload: function() {
       var content = this.template.tag('prop', this._props.join(''));
       return this.template.render(content);
diff --git a/test/caldav/request/propfind_test.js b/test/caldav/request/propfind_test.js
index 58677f4..d38cb5a 100644
--- a/test/caldav/request/propfind_test.js
+++ b/test/caldav/request/propfind_test.js
@@ -51,12 +51,15 @@ suite('caldav/request/propfind', function() {
     assert.equal(subject.xhr.method, 'PROPFIND');
   });
 
-  test('#prop', function() {
+  test('#(has|remove)prop', function() {
     var expected = subject.template.tag('test');
 
     subject.prop('test');
 
     assert.deepEqual(subject._props, [expected]);
+    assert.isTrue(subject.hasProp('test'), 'has prop');
+    subject.removeProp('test');
+    assert.isFalse(subject.hasProp('test'), 'removed prop');
   });
 
   test('.depth', function() {