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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package eks
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/resource"
semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
)
type MockDetectorUtils struct {
mock.Mock
}
// Mock function for fileExists().
func (detectorUtils *MockDetectorUtils) fileExists(filename string) bool {
args := detectorUtils.Called(filename)
return args.Bool(0)
}
// Mock function for getConfigMap().
func (detectorUtils *MockDetectorUtils) getConfigMap(_ context.Context, namespace string, name string) (map[string]string, error) {
args := detectorUtils.Called(namespace, name)
return args.Get(0).(map[string]string), args.Error(1)
}
// Mock function for getContainerID().
func (detectorUtils *MockDetectorUtils) getContainerID() (string, error) {
args := detectorUtils.Called()
return args.String(0), args.Error(1)
}
// Tests EKS resource detector running in EKS environment.
func TestEks(t *testing.T) {
detectorUtils := new(MockDetectorUtils)
// Mock functions and set expectations
detectorUtils.On("fileExists", k8sTokenPath).Return(true)
detectorUtils.On("fileExists", k8sCertPath).Return(true)
detectorUtils.On("getConfigMap", authConfigmapNS, authConfigmapName).Return(map[string]string{"not": "nil"}, nil)
detectorUtils.On("getConfigMap", cwConfigmapNS, cwConfigmapName).Return(map[string]string{"cluster.name": "my-cluster"}, nil)
detectorUtils.On("getContainerID").Return("0123456789A", nil)
// Expected resource object
eksResourceLabels := []attribute.KeyValue{
semconv.CloudProviderAWS,
semconv.CloudPlatformAWSEKS,
semconv.K8SClusterName("my-cluster"),
semconv.ContainerID("0123456789A"),
}
expectedResource := resource.NewWithAttributes(semconv.SchemaURL, eksResourceLabels...)
// Call EKS Resource detector to detect resources
eksResourceDetector := resourceDetector{utils: detectorUtils}
resourceObj, err := eksResourceDetector.Detect(context.Background())
require.NoError(t, err)
assert.Equal(t, expectedResource, resourceObj, "Resource object returned is incorrect")
detectorUtils.AssertExpectations(t)
}
// Tests EKS resource detector not running in EKS environment.
func TestNotEKS(t *testing.T) {
detectorUtils := new(MockDetectorUtils)
k8sTokenPath := "/var/run/secrets/kubernetes.io/serviceaccount/token"
// Mock functions and set expectations
detectorUtils.On("fileExists", k8sTokenPath).Return(false)
detector := resourceDetector{utils: detectorUtils}
r, err := detector.Detect(context.Background())
require.NoError(t, err)
assert.Equal(t, resource.Empty(), r, "Resource object should be empty")
detectorUtils.AssertExpectations(t)
}
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