8472946799
Refractor newExporter and newTracer, add unit tests to them This PR is part of issue 7493 Signed-off-by: Tony Fang <nenghui.fang@gmail.com>
119 lines
3.2 KiB
Go
119 lines
3.2 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package plugin
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import (
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"context"
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"errors"
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"testing"
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"github.com/containerd/containerd/errdefs"
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"go.opentelemetry.io/otel/sdk/trace"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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"go.opentelemetry.io/otel/sdk/trace/tracetest"
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)
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// TestNewExporter runs tests with different combinations of configuration for NewExporter function
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func TestNewExporter(t *testing.T) {
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for _, testcase := range []struct {
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name string
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input OTLPConfig
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output error
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}{
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{
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name: "Test http/protobuf protocol, expect no error",
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input: OTLPConfig{Endpoint: "http://localhost:4318",
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Protocol: "http/protobuf",
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Insecure: false},
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output: nil,
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},
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{
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name: "Test invalid endpoint, expect ErrInvalidArgument error",
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input: OTLPConfig{Endpoint: "http://localhost\n:4318",
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Protocol: "http/protobuf",
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Insecure: false},
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output: errdefs.ErrInvalidArgument,
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},
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{
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name: "Test default protocol, expect no error",
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input: OTLPConfig{Endpoint: "http://localhost:4318",
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Protocol: "",
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Insecure: false},
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output: nil,
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},
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{
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name: "Test grpc protocol, expect no error",
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input: OTLPConfig{Endpoint: "http://localhost:4317",
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Protocol: "grpc",
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Insecure: false},
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output: nil,
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},
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{
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name: "Test http/json protocol which is not supported, expect not implemented error",
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input: OTLPConfig{Endpoint: "http://localhost:4318",
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Protocol: "http/json",
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Insecure: false},
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output: errdefs.ErrNotImplemented,
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},
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} {
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t.Run(testcase.name, func(t *testing.T) {
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t.Logf("input: %v", testcase.input)
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ctx := context.TODO()
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exp, err := newExporter(ctx, &testcase.input)
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t.Logf("output: %v", err)
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if err == nil {
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if err != testcase.output {
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t.Fatalf("Expect to get error: %v, however no error got\n", testcase.output)
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} else if exp == nil {
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t.Fatalf("Something went wrong, Exporter not created as expected\n")
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}
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} else {
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if !errors.Is(err, testcase.output) {
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t.Fatalf("Expect to get error: %v, however error %v returned\n", testcase.output, err)
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}
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}
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})
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}
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}
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// TestNewTracer runs test for NewTracer function
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func TestNewTracer(t *testing.T) {
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config := &TraceConfig{ServiceName: "containerd", TraceSamplingRatio: 1.0}
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t.Logf("config: %v", config)
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procs := make([]sdktrace.SpanProcessor, 0, 1)
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//Create a dummy in memory exporter for test
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exp := tracetest.NewInMemoryExporter()
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proc := trace.NewBatchSpanProcessor(exp)
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procs = append(procs, proc)
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ctx := context.TODO()
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tracerCloser, err := newTracer(ctx, config, procs)
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if err != nil {
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t.Fatalf("Something went wrong, Tracer not created as expected\n")
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}
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defer tracerCloser.Close()
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}
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