add PrevAll() and PrevAllFiltered() with tests

traversal.go

@@ -203,6 +203,19 @@ func (this *Selection) PrevFiltered(selector string) *Selection {
 	return filterAndPush(this, getSiblingNodes(this.Nodes, siblingPrev), selector)
 }
 
+// PrevAll() gets all the preceding siblings of each element in the
+// Selection. It returns a new Selection object containing the matched elements.
+func (this *Selection) PrevAll() *Selection {
+	return pushStack(this, getSiblingNodes(this.Nodes, siblintPrevAll))
+}
+
+// PrevAllFiltered() gets all the preceding siblings of each element in the
+// Selection filtered by a selector. It returns a new Selection object
+// containing the matched elements.
+func (this *Selection) PrevAllFiltered(selector string) *Selection {
+	return filterAndPush(this, getSiblingNodes(this.Nodes, siblintPrevAll), selector)
+}
+
 // Filter and push filters the nodes based on a selector, and pushes the results
 // on the stack, with the srcSel as previous selection.
 func filterAndPush(srcSel *Selection, nodes []*html.Node, selector string) *Selection {

traversal_test.go

@@ -178,3 +178,43 @@ func TestPrevFiltered(t *testing.T) {
 	sel := Doc().Root.Find(".row-fluid").PrevFiltered(".row-fluid")
 	AssertLength(t, sel.Nodes, 5)
 }
+
+func TestNextAll(t *testing.T) {
+	sel := Doc().Root.Find("#cf2 div:nth-child(1)").NextAll()
+	AssertLength(t, sel.Nodes, 3)
+}
+
+func TestNextAll2(t *testing.T) {
+	sel := Doc().Root.Find("div[ng-cloak]").NextAll()
+	AssertLength(t, sel.Nodes, 1)
+}
+
+func TestNextAllNone(t *testing.T) {
+	sel := Doc().Root.Find(".footer").NextAll()
+	AssertLength(t, sel.Nodes, 0)
+}
+
+func TestNextAllFiltered(t *testing.T) {
+	sel := Doc().Root.Find("#cf2 .row-fluid").NextAllFiltered("[ng-cloak]")
+	AssertLength(t, sel.Nodes, 2)
+}
+
+func TestNextAllFiltered2(t *testing.T) {
+	sel := Doc().Root.Find(".close").NextAllFiltered("h4")
+	AssertLength(t, sel.Nodes, 1)
+}
+
+func TestPrevAll(t *testing.T) {
+	sel := Doc().Root.Find("[ng-view]").PrevAll()
+	AssertLength(t, sel.Nodes, 2)
+}
+
+func TestPrevAll2(t *testing.T) {
+	sel := Doc().Root.Find(".pvk-gutter").PrevAll()
+	AssertLength(t, sel.Nodes, 6)
+}
+
+func TestPrevAllFiltered(t *testing.T) {
+	sel := Doc().Root.Find(".pvk-gutter").PrevAllFiltered(".pvk-content")
+	AssertLength(t, sel.Nodes, 3)
+}