start add benchmarks for filter.go

bench_filter_test.go

@@ -0,0 +1,79 @@
+package goquery
+
+import (
+	"testing"
+)
+
+func BenchmarkFilter(b *testing.B) {
+	var n int
+
+	b.StopTimer()
+	sel := DocW().Root.Find("li")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		if n == 0 {
+			n = sel.Filter(".toclevel-1").Length()
+		} else {
+			sel.Filter(".toclevel-1")
+		}
+	}
+	b.Logf("Filter=%d", n)
+}
+
+func BenchmarkNot(b *testing.B) {
+	var n int
+
+	b.StopTimer()
+	sel := DocW().Root.Find("li")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		if n == 0 {
+			n = sel.Not(".toclevel-2").Length()
+		} else {
+			sel.Filter(".toclevel-2")
+		}
+	}
+	b.Logf("Not=%d", n)
+}
+
+func BenchmarkFilterFunction(b *testing.B) {
+	var n int
+
+	b.StopTimer()
+	sel := DocW().Root.Find("li")
+	f := func(i int, s *Selection) bool {
+		return len(s.Get(0).Attr) > 0
+	}
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		if n == 0 {
+			n = sel.FilterFunction(f).Length()
+		} else {
+			sel.FilterFunction(f)
+		}
+	}
+	b.Logf("FilterFunction=%d", n)
+}
+
+func BenchmarkNotFunction(b *testing.B) {
+	var n int
+
+	b.StopTimer()
+	sel := DocW().Root.Find("li")
+	f := func(i int, s *Selection) bool {
+		return len(s.Get(0).Attr) > 0
+	}
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		if n == 0 {
+			n = sel.NotFunction(f).Length()
+		} else {
+			sel.NotFunction(f)
+		}
+	}
+	b.Logf("NotFunction=%d", n)
+}
+
+func BenchmarkFilterNodes(b *testing.B) {
+
+}

type_test.go

@@ -11,6 +11,7 @@ import (
 var doc *Document
 var doc2 *Document
 var docB *Document
+var docW *Document
 
 func Doc() *Document {
 	if doc == nil {
@@ -30,6 +31,12 @@ func DocB() *Document {
 	}
 	return docB
 }
+func DocW() *Document {
+	if docW == nil {
+		docW = LoadDoc("gowiki.html")
+	}
+	return docW
+}
 
 func AssertLength(t *testing.T, nodes []*html.Node, length int) {
 	if len(nodes) != length {