knative.dev/pkg@v0.0.0-20260602142205-ac97e43f6622/profiling/server_test.go (about)

     1  /*
     2  Copyright 2019 The Knative Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package profiling
    18  
    19  import (
    20  	"net/http"
    21  	"net/http/httptest"
    22  	"testing"
    23  
    24  	"go.uber.org/zap"
    25  	corev1 "k8s.io/api/core/v1"
    26  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    27  	o11yconfigmap "knative.dev/pkg/observability/configmap"
    28  	"knative.dev/pkg/system"
    29  
    30  	_ "knative.dev/pkg/system/testing"
    31  )
    32  
    33  func TestUpdateFromConfigMap(t *testing.T) {
    34  	observabilityConfigTests := []struct {
    35  		name           string
    36  		wantEnabled    bool
    37  		wantStatusCode int
    38  		config         *corev1.ConfigMap
    39  	}{{
    40  		name:           "observability with profiling disabled",
    41  		wantEnabled:    false,
    42  		wantStatusCode: http.StatusNotFound,
    43  		config: &corev1.ConfigMap{
    44  			ObjectMeta: metav1.ObjectMeta{
    45  				Namespace: system.Namespace(),
    46  				Name:      o11yconfigmap.Name(),
    47  			},
    48  			Data: map[string]string{
    49  				"profiling.enable": "false",
    50  			},
    51  		},
    52  	}, {
    53  		name:           "observability config with profiling enabled",
    54  		wantEnabled:    true,
    55  		wantStatusCode: http.StatusOK,
    56  		config: &corev1.ConfigMap{
    57  			ObjectMeta: metav1.ObjectMeta{
    58  				Namespace: system.Namespace(),
    59  				Name:      o11yconfigmap.Name(),
    60  			},
    61  			Data: map[string]string{
    62  				"profiling.enable": "true",
    63  			},
    64  		},
    65  	}, {
    66  		name:           "observability config with unparseable value",
    67  		wantEnabled:    false,
    68  		wantStatusCode: http.StatusNotFound,
    69  		config: &corev1.ConfigMap{
    70  			ObjectMeta: metav1.ObjectMeta{
    71  				Namespace: system.Namespace(),
    72  				Name:      o11yconfigmap.Name(),
    73  			},
    74  			Data: map[string]string{
    75  				"profiling.enable": "get me some profiles",
    76  			},
    77  		},
    78  	}}
    79  
    80  	for _, tt := range observabilityConfigTests {
    81  		t.Run(tt.name, func(t *testing.T) {
    82  			handler := NewHandler(zap.NewNop().Sugar(), false)
    83  
    84  			handler.UpdateFromConfigMap(tt.config)
    85  
    86  			req, err := http.NewRequest(http.MethodGet, "/debug/pprof/", nil)
    87  			if err != nil {
    88  				t.Fatal("Error creating request:", err)
    89  			}
    90  
    91  			rr := httptest.NewRecorder()
    92  
    93  			handler.ServeHTTP(rr, req)
    94  
    95  			if rr.Code != tt.wantStatusCode {
    96  				t.Errorf("StatusCode: %v, want: %v", rr.Code, tt.wantStatusCode)
    97  			}
    98  
    99  			if handler.enabled.Load() != tt.wantEnabled {
   100  				t.Fatalf("Enabled got %v, want %v", handler.enabled.Load(), tt.wantEnabled)
   101  			}
   102  		})
   103  	}
   104  }