Fix benchmarktests (#557)

models/graph_test.go

@@ -17,6 +17,7 @@ func BenchmarkGetCommitGraph(b *testing.B) {
 		b.Error("Could not open repository")
 	}
 
+	for i := 0; i < b.N; i++ {
 		graph, err := GetCommitGraph(currentRepo)
 		if err != nil {
 			b.Error("Could get commit graph")
@@ -25,11 +26,13 @@ func BenchmarkGetCommitGraph(b *testing.B) {
 		if len(graph) < 100 {
 			b.Error("Should get 100 log lines.")
 		}
+	}
 }
 
 func BenchmarkParseCommitString(b *testing.B) {
 	testString := "* DATA:||4e61bacab44e9b4730e44a6615d04098dd3a8eaf|2016-12-20 21:10:41 +0100|Kjell Kvinge|kjell@kvinge.biz|4e61bac|Add route for graph"
 
+	for i := 0; i < b.N; i++ {
 		graphItem, err := graphItemFromString(testString, nil)
 		if err != nil {
 			b.Error("could not parse teststring")
@@ -38,4 +41,5 @@ func BenchmarkParseCommitString(b *testing.B) {
 		if graphItem.Author != "Kjell Kvinge" {
 			b.Error("Did not get expected data")
 		}
+	}
 }