118 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
		
			3.1 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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	"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([]trace.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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