func benchmarkStats(b *testing.B, r render.Renderer) {
report, err := loadReport()
if err != nil {
b.Fatal(err)
}
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
// No way to tell if this was successful :(
b.StopTimer()
render.ResetCache()
b.StartTimer()
benchmarkStatsResult = r.Stats(report, render.FilterNoop)
}
}
func BenchmarkTopologyList(b *testing.B) {
report, err := loadReport()
if err != nil {
b.Fatal(err)
}
b.ReportAllocs()
b.ResetTimer()
request := &http.Request{
Form: url.Values{},
}
for i := 0; i < b.N; i++ {
b.StopTimer()
render.ResetCache()
b.StartTimer()
topologyRegistry.renderTopologies(report, request)
}
}
func TestMemoise(t *testing.T) {
calls := 0
r := renderFunc(func(rpt report.Report) report.Nodes {
calls++
return report.Nodes{rpt.ID: report.MakeNode(rpt.ID)}
})
m := render.Memoise(r)
rpt1 := report.MakeReport()
result1 := m.Render(rpt1, nil)
// it should have rendered it.
if _, ok := result1[rpt1.ID]; !ok {
t.Errorf("Expected rendered report to contain a node, but got: %v", result1)
}
if calls != 1 {
t.Errorf("Expected renderer to have been called the first time")
}
result2 := m.Render(rpt1, nil)
if !reflect.DeepEqual(result1, result2) {
t.Errorf("Expected memoised result to be returned: %s", test.Diff(result1, result2))
}
if calls != 1 {
t.Errorf("Expected renderer to not have been called the second time")
}
rpt2 := report.MakeReport()
result3 := m.Render(rpt2, nil)
if reflect.DeepEqual(result1, result3) {
t.Errorf("Expected different result for different report, but were the same")
}
if calls != 2 {
t.Errorf("Expected renderer to have been called again for a different report")
}
render.ResetCache()
result4 := m.Render(rpt1, nil)
if !reflect.DeepEqual(result1, result4) {
t.Errorf("Expected original result to be returned: %s", test.Diff(result1, result4))
}
if calls != 3 {
t.Errorf("Expected renderer to have been called again after cache reset")
}
}
func benchmarkRender(b *testing.B, r render.Renderer) {
report, err := loadReport()
if err != nil {
b.Fatal(err)
}
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
b.StopTimer()
render.ResetCache()
b.StartTimer()
benchmarkRenderResult = r.Render(report, render.FilterNoop)
if len(benchmarkRenderResult) == 0 {
b.Errorf("Rendered topology contained no nodes")
}
}
}