96 lines
3.1 KiB
Go
96 lines
3.1 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package eks
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/label"
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"go.opentelemetry.io/otel/sdk/resource"
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"go.opentelemetry.io/otel/semconv"
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)
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type MockDetectorUtils struct {
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mock.Mock
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}
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// Mock function for fileExists()
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func (detectorUtils *MockDetectorUtils) fileExists(filename string) bool {
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args := detectorUtils.Called(filename)
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return args.Bool(0)
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}
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// Mock function for fetchString()
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func (detectorUtils *MockDetectorUtils) fetchString(httpMethod string, URL string) (string, error) {
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args := detectorUtils.Called(httpMethod, URL)
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return args.String(0), args.Error(1)
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}
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// Mock function for getContainerID()
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func (detectorUtils *MockDetectorUtils) getContainerID() (string, error) {
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args := detectorUtils.Called()
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return args.String(0), args.Error(1)
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}
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// Tests EKS resource detector running in EKS environment
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func TestEks(t *testing.T) {
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detectorUtils := new(MockDetectorUtils)
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// Mock functions and set expectations
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detectorUtils.On("fileExists", k8sTokenPath).Return(true)
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detectorUtils.On("fileExists", k8sCertPath).Return(true)
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detectorUtils.On("fetchString", "GET", k8sSvcURL+authConfigmapPath).Return("not empty", nil)
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detectorUtils.On("fetchString", "GET", k8sSvcURL+cwConfigmapPath).Return(`{"data":{"cluster.name":"my-cluster"}}`, nil)
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detectorUtils.On("getContainerID").Return("0123456789A", nil)
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// Expected resource object
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eksResourceLabels := []label.KeyValue{
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semconv.K8SClusterNameKey.String("my-cluster"),
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semconv.ContainerIDKey.String("0123456789A"),
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}
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expectedResource := resource.NewWithAttributes(eksResourceLabels...)
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// Call EKS Resource detector to detect resources
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eksResourceDetector := resourceDetector{detectorUtils}
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resourceObj, err := eksResourceDetector.Detect(context.Background())
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require.NoError(t, err)
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assert.Equal(t, expectedResource, resourceObj, "Resource object returned is incorrect")
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detectorUtils.AssertExpectations(t)
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}
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// Tests EKS resource detector not running in EKS environment
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func TestNotEKS(t *testing.T) {
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detectorUtils := new(MockDetectorUtils)
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k8sTokenPath := "/var/run/secrets/kubernetes.io/serviceaccount/token"
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// Mock functions and set expectations
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detectorUtils.On("fileExists", k8sTokenPath).Return(false)
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detector := resourceDetector{detectorUtils}
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r, err := detector.Detect(context.Background())
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require.NoError(t, err)
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assert.Equal(t, resource.Empty(), r, "Resource object should be empty")
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detectorUtils.AssertExpectations(t)
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}
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