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- // Copyright 2018, OpenCensus Authors
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- //
-
- package ocgrpc
-
- import (
- "regexp"
- "strings"
- "testing"
-
- "go.opencensus.io/stats"
- "go.opencensus.io/stats/view"
- )
-
- var colSep = regexp.MustCompile(`\s*\|\s*`)
-
- func TestSpecClientMeasures(t *testing.T) {
- spec := `
- | Measure name | Unit | Description |
- |------------------------------------------|------|-----------------------------------------------------------------------------------------------|
- | grpc.io/client/sent_messages_per_rpc | 1 | Number of messages sent in the RPC (always 1 for non-streaming RPCs). |
- | grpc.io/client/sent_bytes_per_rpc | By | Total bytes sent across all request messages per RPC. |
- | grpc.io/client/received_messages_per_rpc | 1 | Number of response messages received per RPC (always 1 for non-streaming RPCs). |
- | grpc.io/client/received_bytes_per_rpc | By | Total bytes received across all response messages per RPC. |
- | grpc.io/client/roundtrip_latency | ms | Time between first byte of request sent to last byte of response received, or terminal error. |
- | grpc.io/client/server_latency | ms | Propagated from the server and should have the same value as "grpc.io/server/latency". |`
-
- lines := strings.Split(spec, "\n")[3:]
- type measureDef struct {
- name string
- unit string
- desc string
- }
- measureDefs := make([]measureDef, 0, len(lines))
- for _, line := range lines {
- cols := colSep.Split(line, -1)[1:]
- if len(cols) < 3 {
- t.Fatalf("Invalid config line %#v", cols)
- }
- measureDefs = append(measureDefs, measureDef{cols[0], cols[1], cols[2]})
- }
-
- gotMeasures := []stats.Measure{
- ClientSentMessagesPerRPC,
- ClientSentBytesPerRPC,
- ClientReceivedMessagesPerRPC,
- ClientReceivedBytesPerRPC,
- ClientRoundtripLatency,
- ClientServerLatency,
- }
-
- if got, want := len(gotMeasures), len(measureDefs); got != want {
- t.Fatalf("len(gotMeasures) = %d; want %d", got, want)
- }
-
- for i, m := range gotMeasures {
- defn := measureDefs[i]
- if got, want := m.Name(), defn.name; got != want {
- t.Errorf("Name = %q; want %q", got, want)
- }
- if got, want := m.Unit(), defn.unit; got != want {
- t.Errorf("%q: Unit = %q; want %q", defn.name, got, want)
- }
- if got, want := m.Description(), defn.desc; got != want {
- t.Errorf("%q: Description = %q; want %q", defn.name, got, want)
- }
- }
- }
-
- func TestSpecClientViews(t *testing.T) {
- defaultViewsSpec := `
- | View name | Measure suffix | Aggregation | Tags |
- |---------------------------------------|------------------------|--------------|------------------------------|
- | grpc.io/client/sent_bytes_per_rpc | sent_bytes_per_rpc | distribution | client_method |
- | grpc.io/client/received_bytes_per_rpc | received_bytes_per_rpc | distribution | client_method |
- | grpc.io/client/roundtrip_latency | roundtrip_latency | distribution | client_method |
- | grpc.io/client/completed_rpcs | roundtrip_latency | count | client_method, client_status |`
-
- extraViewsSpec := `
- | View name | Measure suffix | Aggregation | Tags suffix |
- |------------------------------------------|---------------------------|--------------|---------------|
- | grpc.io/client/sent_messages_per_rpc | sent_messages_per_rpc | distribution | client_method |
- | grpc.io/client/received_messages_per_rpc | received_messages_per_rpc | distribution | client_method |
- | grpc.io/client/server_latency | server_latency | distribution | client_method |`
-
- lines := strings.Split(defaultViewsSpec, "\n")[3:]
- lines = append(lines, strings.Split(extraViewsSpec, "\n")[3:]...)
- type viewDef struct {
- name string
- measureSuffix string
- aggregation string
- tags string
- }
- viewDefs := make([]viewDef, 0, len(lines))
- for _, line := range lines {
- cols := colSep.Split(line, -1)[1:]
- if len(cols) < 4 {
- t.Fatalf("Invalid config line %#v", cols)
- }
- viewDefs = append(viewDefs, viewDef{cols[0], cols[1], cols[2], cols[3]})
- }
-
- views := DefaultClientViews
- views = append(views, ClientSentMessagesPerRPCView, ClientReceivedMessagesPerRPCView, ClientServerLatencyView)
-
- if got, want := len(views), len(viewDefs); got != want {
- t.Fatalf("len(gotMeasures) = %d; want %d", got, want)
- }
-
- for i, v := range views {
- defn := viewDefs[i]
- if got, want := v.Name, defn.name; got != want {
- t.Errorf("Name = %q; want %q", got, want)
- }
- if got, want := v.Measure.Name(), "grpc.io/client/"+defn.measureSuffix; got != want {
- t.Errorf("%q: Measure.Name = %q; want %q", defn.name, got, want)
- }
- switch v.Aggregation.Type {
- case view.AggTypeDistribution:
- if got, want := "distribution", defn.aggregation; got != want {
- t.Errorf("%q: Description = %q; want %q", defn.name, got, want)
- }
- case view.AggTypeCount:
- if got, want := "count", defn.aggregation; got != want {
- t.Errorf("%q: Description = %q; want %q", defn.name, got, want)
- }
- default:
- t.Errorf("Invalid aggregation type")
- }
- wantTags := strings.Split(defn.tags, ", ")
- if got, want := len(v.TagKeys), len(wantTags); got != want {
- t.Errorf("len(TagKeys) = %d; want %d", got, want)
- }
- for j := range wantTags {
- if got, want := v.TagKeys[j].Name(), "grpc_"+wantTags[j]; got != want {
- t.Errorf("TagKeys[%d].Name() = %q; want %q", j, got, want)
- }
- }
- }
- }
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