opentelemetry-collector/service/extensions/graph_test.go

22 lines
652 B
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package extensions // import "go.opentelemetry.io/collector/service/extensions"
import (
"errors"
"testing"
"github.com/stretchr/testify/assert"
"gonum.org/v1/gonum/graph"
"gonum.org/v1/gonum/graph/topo"
)
func TestCycleErr(t *testing.T) {
err := errors.New("foo")
assert.Equal(t, err, cycleErr(err, nil), "cycleErr should return the error unchanged when it's unrecognized")
var topoErr topo.Unorderable = [][]graph.Node{{}}
assert.Equal(t, topoErr, cycleErr(topoErr, nil), "cycleErr should return topo.Unorderable error unchanged when no cycles are found")
}