k3s/plugin/pkg/admission/initialresources/hawkular_test.go

143 lines
4.5 KiB
Go

/*
Copyright 2015 The Kubernetes Authors.
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 initialresources
import (
"fmt"
api "k8s.io/kubernetes/pkg/apis/core"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
assert "github.com/stretchr/testify/require"
)
const (
testImageName string = "hawkular/hawkular-metrics"
testImageVersion string = "latest"
testImageSHA string = "b727ece3780cdd30e9a86226e520f26bcc396071ed7a86b7ef6684bb93a9f717"
testPartialMatch string = "hawkular/hawkular-metrics:*"
)
func testImageWithVersion() string {
return fmt.Sprintf("%s:%s", testImageName, testImageVersion)
}
func testImageWithReference() string {
return fmt.Sprintf("%s@sha256:%s", testImageName, testImageSHA)
}
func TestTaqQuery(t *testing.T) {
kind := api.ResourceCPU
tQ := tagQuery(kind, testImageWithVersion(), false)
assert.Equal(t, 2, len(tQ))
assert.Equal(t, testPartialMatch, tQ[containerImageTag])
assert.Equal(t, "cpu/usage", tQ[descriptorTag])
tQe := tagQuery(kind, testImageWithVersion(), true)
assert.Equal(t, 2, len(tQe))
assert.Equal(t, testImageWithVersion(), tQe[containerImageTag])
assert.Equal(t, "cpu/usage", tQe[descriptorTag])
tQr := tagQuery(kind, testImageWithReference(), false)
assert.Equal(t, 2, len(tQe))
assert.Equal(t, testPartialMatch, tQr[containerImageTag])
assert.Equal(t, "cpu/usage", tQr[descriptorTag])
tQre := tagQuery(kind, testImageWithReference(), true)
assert.Equal(t, 2, len(tQe))
assert.Equal(t, testImageWithReference(), tQre[containerImageTag])
assert.Equal(t, "cpu/usage", tQre[descriptorTag])
kind = api.ResourceMemory
tQ = tagQuery(kind, testImageWithReference(), true)
assert.Equal(t, "memory/usage", tQ[descriptorTag])
kind = api.ResourceStorage
tQ = tagQuery(kind, testImageWithReference(), true)
assert.Equal(t, "", tQ[descriptorTag])
}
func newSource(t *testing.T) (map[string]string, dataSource) {
tenant := "16a8884e4c155457ee38a8901df6b536"
reqs := make(map[string]string)
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
assert.Equal(t, tenant, r.Header.Get("Hawkular-Tenant"))
assert.Equal(t, "Basic", r.Header.Get("Authorization")[:5])
if strings.Contains(r.RequestURI, "counters/data") {
assert.True(t, strings.Contains(r.RequestURI, url.QueryEscape(testImageWithVersion())))
assert.True(t, strings.Contains(r.RequestURI, "cpu%2Fusage"))
assert.True(t, strings.Contains(r.RequestURI, "percentiles=90"))
reqs["counters/data"] = r.RequestURI
fmt.Fprintf(w, ` [{"start":1444620095882,"end":1444648895882,"min":1.45,"avg":1.45,"median":1.45,"max":1.45,"percentile95th":1.45,"samples":123456,"percentiles":[{"value":7896.54,"quantile":0.9},{"value":1.45,"quantile":0.99}],"empty":false}]`)
} else {
reqs["unknown"] = r.RequestURI
}
}))
paramUri := fmt.Sprintf("%s?user=test&pass=yep&tenant=foo&insecure=true", s.URL)
hSource, err := newHawkularSource(paramUri)
assert.NoError(t, err)
return reqs, hSource
}
func TestInsecureMustBeBool(t *testing.T) {
paramUri := fmt.Sprintf("localhost?user=test&pass=yep&insecure=foo")
_, err := newHawkularSource(paramUri)
if err == nil {
t.Errorf("Expected error from newHawkularSource")
}
}
func TestCAFileMustExist(t *testing.T) {
paramUri := fmt.Sprintf("localhost?user=test&pass=yep&caCert=foo")
_, err := newHawkularSource(paramUri)
if err == nil {
t.Errorf("Expected error from newHawkularSource")
}
}
func TestServiceAccountIsMutuallyExclusiveWithAuth(t *testing.T) {
paramUri := fmt.Sprintf("localhost?user=test&pass=yep&useServiceAccount=true")
_, err := newHawkularSource(paramUri)
if err == nil {
t.Errorf("Expected error from newHawkularSource")
}
}
func TestGetUsagePercentile(t *testing.T) {
reqs, hSource := newSource(t)
usage, samples, err := hSource.GetUsagePercentile(api.ResourceCPU, 90, testImageWithVersion(), "16a8884e4c155457ee38a8901df6b536", true, time.Now(), time.Now())
assert.NoError(t, err)
assert.Equal(t, 1, len(reqs))
assert.Equal(t, "", reqs["unknown"])
assert.Equal(t, int64(123456), int64(samples))
assert.Equal(t, int64(7896), usage) // float64 -> int64
}