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trace_compare.go
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trace_compare.go
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// Copyright (c) 2019 The Jaeger Authors.
// Copyright (c) 2017 Uber Technologies, Inc.
//
// 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 integration
import (
"encoding/json"
"testing"
"github.com/kr/pretty"
"github.com/stretchr/testify/require"
"github.com/jaegertracing/jaeger/model"
)
// CompareSliceOfTraces compares two trace slices
func CompareSliceOfTraces(t *testing.T, expected []*model.Trace, actual []*model.Trace) {
require.Equal(t, len(expected), len(actual), "Unequal number of expected vs. actual traces")
model.SortTraces(expected)
model.SortTraces(actual)
for i := range expected {
checkSize(t, expected[i], actual[i])
}
if diff := pretty.Diff(expected, actual); len(diff) > 0 {
for _, d := range diff {
t.Logf("Expected and actual differ: %s\n", d)
}
out, err := json.Marshal(actual)
out2, err2 := json.Marshal(expected)
require.NoError(t, err)
require.NoError(t, err2)
t.Logf("Actual traces: %s", string(out))
t.Logf("Expected traces: %s", string(out2))
t.Fail()
}
}
// CompareTraces compares two traces
func CompareTraces(t *testing.T, expected *model.Trace, actual *model.Trace) {
if expected.Spans == nil {
require.Nil(t, actual.Spans)
return
}
require.NotNil(t, actual)
require.NotNil(t, actual.Spans)
model.SortTrace(expected)
model.SortTrace(actual)
checkSize(t, expected, actual)
if diff := pretty.Diff(expected, actual); len(diff) > 0 {
for _, d := range diff {
t.Logf("Expected and actual differ: %v\n", d)
}
out, err := json.Marshal(actual)
require.NoError(t, err)
t.Logf("Actual trace: %s", string(out))
t.Fail()
}
}
func checkSize(t *testing.T, expected *model.Trace, actual *model.Trace) {
require.Equal(t, len(expected.Spans), len(actual.Spans))
for i := range expected.Spans {
expectedSpan := expected.Spans[i]
actualSpan := actual.Spans[i]
require.Equal(t, len(expectedSpan.Tags), len(actualSpan.Tags))
require.Equal(t, len(expectedSpan.Logs), len(actualSpan.Logs))
if expectedSpan.Process != nil && actualSpan.Process != nil {
require.Equal(t, len(expectedSpan.Process.Tags), len(actualSpan.Process.Tags))
}
}
}