mirror of
https://github.com/dutchcoders/transfer.sh.git
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117 lines
3.2 KiB
Go
117 lines
3.2 KiB
Go
// Copyright 2018, OpenCensus Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ochttp_test
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import (
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/google/go-cmp/cmp"
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"go.opencensus.io/plugin/ochttp"
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"go.opencensus.io/stats/view"
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"go.opencensus.io/tag"
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)
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func TestWithRouteTag(t *testing.T) {
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v := &view.View{
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Name: "request_total",
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Measure: ochttp.ServerLatency,
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Aggregation: view.Count(),
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TagKeys: []tag.Key{ochttp.KeyServerRoute},
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}
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view.Register(v)
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var e testStatsExporter
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view.RegisterExporter(&e)
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defer view.UnregisterExporter(&e)
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mux := http.NewServeMux()
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handler := ochttp.WithRouteTag(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(204)
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}), "/a/")
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mux.Handle("/a/", handler)
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plugin := ochttp.Handler{Handler: mux}
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req, _ := http.NewRequest("GET", "/a/b/c", nil)
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rr := httptest.NewRecorder()
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plugin.ServeHTTP(rr, req)
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if got, want := rr.Code, 204; got != want {
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t.Fatalf("Unexpected response, got %d; want %d", got, want)
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}
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view.Unregister(v) // trigger exporting
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got := e.rowsForView("request_total")
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want := []*view.Row{
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{Data: &view.CountData{Value: 1}, Tags: []tag.Tag{{Key: ochttp.KeyServerRoute, Value: "/a/"}}},
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}
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if diff := cmp.Diff(got, want); diff != "" {
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t.Errorf("Unexpected view data exported, -got, +want: %s", diff)
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}
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}
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func TestSetRoute(t *testing.T) {
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v := &view.View{
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Name: "request_total",
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Measure: ochttp.ServerLatency,
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Aggregation: view.Count(),
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TagKeys: []tag.Key{ochttp.KeyServerRoute},
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}
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view.Register(v)
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var e testStatsExporter
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view.RegisterExporter(&e)
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defer view.UnregisterExporter(&e)
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mux := http.NewServeMux()
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handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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ochttp.SetRoute(r.Context(), "/a/")
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w.WriteHeader(204)
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})
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mux.Handle("/a/", handler)
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plugin := ochttp.Handler{Handler: mux}
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req, _ := http.NewRequest("GET", "/a/b/c", nil)
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rr := httptest.NewRecorder()
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plugin.ServeHTTP(rr, req)
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if got, want := rr.Code, 204; got != want {
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t.Fatalf("Unexpected response, got %d; want %d", got, want)
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}
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view.Unregister(v) // trigger exporting
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got := e.rowsForView("request_total")
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want := []*view.Row{
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{Data: &view.CountData{Value: 1}, Tags: []tag.Tag{{Key: ochttp.KeyServerRoute, Value: "/a/"}}},
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}
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if diff := cmp.Diff(got, want); diff != "" {
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t.Errorf("Unexpected view data exported, -got, +want: %s", diff)
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}
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}
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type testStatsExporter struct {
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vd []*view.Data
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}
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func (t *testStatsExporter) ExportView(d *view.Data) {
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t.vd = append(t.vd, d)
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}
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func (t *testStatsExporter) rowsForView(name string) []*view.Row {
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var rows []*view.Row
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for _, d := range t.vd {
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if d.View.Name == name {
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rows = append(rows, d.Rows...)
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}
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}
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return rows
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}
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