mirror of https://github.com/k3s-io/k3s
300 lines
9.4 KiB
Go
300 lines
9.4 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package cmd
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import (
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"bytes"
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"fmt"
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"net/http"
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"strings"
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"testing"
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metrics_api "k8s.io/heapster/metrics/apis/metrics/v1alpha1"
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"k8s.io/kubernetes/pkg/client/unversioned/fake"
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"net/url"
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)
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func TestTopPodAllNamespacesMetrics(t *testing.T) {
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initTestErrorHandler(t)
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metrics := testPodMetricsData()
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firstTestNamespace := "testnamespace"
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secondTestNamespace := "secondtestns"
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thirdTestNamespace := "thirdtestns"
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metrics.Items[0].Namespace = firstTestNamespace
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metrics.Items[1].Namespace = secondTestNamespace
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metrics.Items[2].Namespace = thirdTestNamespace
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expectedPath := fmt.Sprintf("%s/%s/pods", baseMetricsAddress, metricsApiVersion)
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f, tf, _, ns := NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == expectedPath && m == "GET":
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body, err := marshallBody(metrics)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: body}, nil
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default:
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t.Fatalf("unexpected request: %#v\nGot URL: %#v\nExpected path: %#v", req, req.URL, expectedPath)
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return nil, nil
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}
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}),
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}
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tf.Namespace = firstTestNamespace
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tf.ClientConfig = defaultClientConfig()
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdTopPod(f, buf)
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cmd.Flags().Set("all-namespaces", "true")
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cmd.Run(cmd, []string{})
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// Check the presence of pod names and namespaces in the output.
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result := buf.String()
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for _, m := range metrics.Items {
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if !strings.Contains(result, m.Name) {
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t.Errorf("missing metrics for %s: \n%s", m.Name, result)
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}
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if !strings.Contains(result, m.Namespace) {
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t.Errorf("missing metrics for %s/%s: \n%s", m.Namespace, m.Name, result)
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}
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}
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}
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func TestTopPodAllInNamespaceMetrics(t *testing.T) {
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initTestErrorHandler(t)
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metrics := testPodMetricsData()
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testNamespace := "testnamespace"
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nonTestNamespace := "anothernamespace"
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expectedMetrics := metrics_api.PodMetricsList{
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ListMeta: metrics.ListMeta,
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Items: metrics.Items[0:2],
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}
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for _, m := range expectedMetrics.Items {
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m.Namespace = testNamespace
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}
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nonExpectedMetrics := metrics_api.PodMetricsList{
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ListMeta: metrics.ListMeta,
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Items: metrics.Items[2:],
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}
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for _, m := range nonExpectedMetrics.Items {
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m.Namespace = nonTestNamespace
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}
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expectedPath := fmt.Sprintf("%s/%s/namespaces/%s/pods", baseMetricsAddress, metricsApiVersion, testNamespace)
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f, tf, _, ns := NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == expectedPath && m == "GET":
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body, err := marshallBody(expectedMetrics)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: body}, nil
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default:
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t.Fatalf("unexpected request: %#v\nGot URL: %#v\nExpected path: %#v", req, req.URL, expectedPath)
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return nil, nil
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}
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}),
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}
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tf.Namespace = testNamespace
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tf.ClientConfig = defaultClientConfig()
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdTopPod(f, buf)
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cmd.Run(cmd, []string{})
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// Check the presence of pod names in the output.
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result := buf.String()
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for _, m := range expectedMetrics.Items {
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if !strings.Contains(result, m.Name) {
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t.Errorf("missing metrics for %s: \n%s", m.Name, result)
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}
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}
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for _, m := range nonExpectedMetrics.Items {
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if strings.Contains(result, m.Name) {
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t.Errorf("unexpected metrics for %s: \n%s", m.Name, result)
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}
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}
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}
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func TestTopPodWithNameMetrics(t *testing.T) {
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initTestErrorHandler(t)
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metrics := testPodMetricsData()
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expectedMetrics := metrics.Items[0]
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nonExpectedMetrics := metrics_api.PodMetricsList{
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ListMeta: metrics.ListMeta,
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Items: metrics.Items[1:],
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}
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testNamespace := "testnamespace"
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expectedMetrics.Namespace = testNamespace
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expectedPath := fmt.Sprintf("%s/%s/namespaces/%s/pods/%s", baseMetricsAddress, metricsApiVersion, testNamespace, expectedMetrics.Name)
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f, tf, _, ns := NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == expectedPath && m == "GET":
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body, err := marshallBody(expectedMetrics)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: body}, nil
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default:
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t.Fatalf("unexpected request: %#v\nGot URL: %#v\nExpected path: %#v", req, req.URL, expectedPath)
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return nil, nil
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}
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}),
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}
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tf.Namespace = testNamespace
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tf.ClientConfig = defaultClientConfig()
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdTopPod(f, buf)
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cmd.Run(cmd, []string{expectedMetrics.Name})
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// Check the presence of pod names in the output.
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result := buf.String()
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if !strings.Contains(result, expectedMetrics.Name) {
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t.Errorf("missing metrics for %s: \n%s", expectedMetrics.Name, result)
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}
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for _, m := range nonExpectedMetrics.Items {
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if strings.Contains(result, m.Name) {
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t.Errorf("unexpected metrics for %s: \n%s", m.Name, result)
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}
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}
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}
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func TestTopPodWithLabelSelectorMetrics(t *testing.T) {
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initTestErrorHandler(t)
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metrics := testPodMetricsData()
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expectedMetrics := metrics_api.PodMetricsList{
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ListMeta: metrics.ListMeta,
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Items: metrics.Items[0:2],
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}
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nonExpectedMetrics := metrics_api.PodMetricsList{
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ListMeta: metrics.ListMeta,
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Items: metrics.Items[2:],
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}
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label := "key=value"
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testNamespace := "testnamespace"
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expectedPath := fmt.Sprintf("%s/%s/namespaces/%s/pods", baseMetricsAddress, metricsApiVersion, testNamespace)
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expectedQuery := fmt.Sprintf("labelSelector=%s", url.QueryEscape(label))
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f, tf, _, ns := NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m, q := req.URL.Path, req.Method, req.URL.RawQuery; {
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case p == expectedPath && m == "GET" && q == expectedQuery:
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body, err := marshallBody(expectedMetrics)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: body}, nil
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default:
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t.Fatalf("unexpected request: %#v\nGot URL: %#v\nExpected path: %#v", req, req.URL, expectedPath)
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return nil, nil
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}
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}),
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}
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tf.Namespace = testNamespace
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tf.ClientConfig = defaultClientConfig()
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdTopPod(f, buf)
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cmd.Flags().Set("selector", label)
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cmd.Run(cmd, []string{})
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// Check the presence of pod names in the output.
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result := buf.String()
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for _, m := range expectedMetrics.Items {
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if !strings.Contains(result, m.Name) {
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t.Errorf("missing metrics for %s: \n%s", m.Name, result)
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}
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}
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for _, m := range nonExpectedMetrics.Items {
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if strings.Contains(result, m.Name) {
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t.Errorf("unexpected metrics for %s: \n%s", m.Name, result)
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}
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}
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}
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func TestTopPodWithContainersMetrics(t *testing.T) {
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initTestErrorHandler(t)
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metrics := testPodMetricsData()
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expectedMetrics := metrics.Items[0]
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nonExpectedMetrics := metrics_api.PodMetricsList{
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ListMeta: metrics.ListMeta,
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Items: metrics.Items[1:],
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}
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testNamespace := "testnamespace"
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expectedMetrics.Namespace = testNamespace
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expectedPath := fmt.Sprintf("%s/%s/namespaces/%s/pods/%s", baseMetricsAddress, metricsApiVersion, testNamespace, expectedMetrics.Name)
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f, tf, _, ns := NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch p, m := req.URL.Path, req.Method; {
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case p == expectedPath && m == "GET":
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body, err := marshallBody(expectedMetrics)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: body}, nil
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default:
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t.Fatalf("unexpected request: %#v\nGot URL: %#v\nExpected path: %#v", req, req.URL, expectedPath)
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return nil, nil
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}
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}),
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}
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tf.Namespace = testNamespace
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tf.ClientConfig = defaultClientConfig()
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdTopPod(f, buf)
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cmd.Flags().Set("containers", "true")
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cmd.Run(cmd, []string{expectedMetrics.Name})
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// Check the presence of pod names in the output.
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result := buf.String()
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if !strings.Contains(result, expectedMetrics.Name) {
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t.Errorf("missing metrics for %s: \n%s", expectedMetrics.Name, result)
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}
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for _, m := range expectedMetrics.Containers {
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if !strings.Contains(result, m.Name) {
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t.Errorf("missing metrics for container %s: \n%s", m.Name, result)
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}
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}
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for _, m := range nonExpectedMetrics.Items {
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if strings.Contains(result, m.Name) {
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t.Errorf("unexpected metrics for %s: \n%s", m.Name, result)
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}
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}
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}
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