Fix list index 0 matching any paragraph

2 files changed, 7 insertions, 2 deletions

diff --git a/lib/document-matchers.js b/lib/document-matchers.js
index 58b3204..e681349 100644
--- a/lib/document-matchers.js
+++ b/lib/document-matchers.js
@@ -17,8 +17,8 @@ function Matcher(elementType, styleName) {
 
 Matcher.prototype.matches = function(element) {
     return element.type === this._elementType &&
-        (!this._styleName || element.styleName === this._styleName) &&
-        (!this._listIndex || isList(element, this._listIndex, this._listIsOrdered));
+        (this._styleName === undefined || element.styleName === this._styleName) &&
+        (this._listIndex === undefined || isList(element, this._listIndex, this._listIsOrdered));
 }
 
 Matcher.prototype.orderedList = function(levelIndex) {
diff --git a/tests/document-matchers.tests.js b/tests/document-matchers.tests.js
index eef463d..6d77926 100644
--- a/tests/document-matchers.tests.js
+++ b/tests/document-matchers.tests.js
@@ -33,6 +33,11 @@ describe("document-matchers", function() {
         assert.ok(matcher.matches(new Paragraph([], {numbering: {level: 1, isOrdered: false}})));
         assert.ok(!matcher.matches(new Paragraph([], {numbering: {level: 1, isOrdered: true}})));
     });
+    
+    test("matchers for lists with index 0 do not match elements that are not lists", function() {
+        var matcher = documentMatchers.paragraph().orderedList(0);
+        assert.ok(!matcher.matches(new Paragraph()));
+    });
 });
 
 function paragraphWithStyle(styleName) {