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/*
* Copyright 2019-present Open Networking Foundation
*
* 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 probe
import (
"context"
"encoding/json"
"github.com/stretchr/testify/assert"
"io/ioutil"
"net/http"
"net/http/httptest"
"testing"
"time"
)
func TestServiceStatusString(t *testing.T) {
assert.Equal(t, "Unknown", ServiceStatusUnknown.String(), "ServiceStatusUnknown")
assert.Equal(t, "Preparing", ServiceStatusPreparing.String(), "ServiceStatusPreparing")
assert.Equal(t, "Prepared", ServiceStatusPrepared.String(), "ServiceStatusPrepared")
assert.Equal(t, "Running", ServiceStatusRunning.String(), "ServiceStatusRunning")
assert.Equal(t, "Stopped", ServiceStatusStopped.String(), "ServiceStatusStopped")
assert.Equal(t, "Failed", ServiceStatusFailed.String(), "ServiceStatusFailed")
assert.Equal(t, "NotReady", ServiceStatusNotReady.String(), "ServiceStatusNotReady")
}
func AlwaysTrue(map[string]ServiceStatus) bool {
return true
}
func AlwaysFalse(map[string]ServiceStatus) bool {
return false
}
func TestWithFuncs(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysFalse)
assert.NotNil(t, p.readyFunc, "ready func not set")
assert.True(t, p.readyFunc(nil), "ready func not set correctly")
assert.NotNil(t, p.healthFunc, "health func not set")
assert.False(t, p.healthFunc(nil), "health func not set correctly")
}
func TestWithReadyFuncOnly(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue)
assert.NotNil(t, p.readyFunc, "ready func not set")
assert.True(t, p.readyFunc(nil), "ready func not set correctly")
assert.Nil(t, p.healthFunc, "health func set")
}
func TestWithHealthFuncOnly(t *testing.T) {
p := (&Probe{}).WithHealthFunc(AlwaysTrue)
assert.Nil(t, p.readyFunc, "ready func set")
assert.NotNil(t, p.healthFunc, "health func not set")
assert.True(t, p.healthFunc(nil), "health func not set correctly")
}
func TestRegisterOneService(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
assert.Equal(t, 1, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "service not found")
}
func TestRegisterMultipleServices(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two", "three", "four")
assert.Equal(t, 4, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "service one not found")
_, ok = p.status["two"]
assert.True(t, ok, "service two not found")
_, ok = p.status["three"]
assert.True(t, ok, "service three not found")
_, ok = p.status["four"]
assert.True(t, ok, "service four not found")
}
func TestRegisterMultipleServicesIncremental(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
p.RegisterService("two")
p.RegisterService("three", "four")
assert.Equal(t, 4, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "service one not found")
_, ok = p.status["two"]
assert.True(t, ok, "service two not found")
_, ok = p.status["three"]
assert.True(t, ok, "service three not found")
_, ok = p.status["four"]
assert.True(t, ok, "service four not found")
}
func TestRegisterMultipleServicesDuplicates(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "one", "one", "two")
assert.Equal(t, 2, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "service one not found")
_, ok = p.status["two"]
assert.True(t, ok, "service two not found")
}
func TestRegisterMultipleServicesDuplicatesIncremental(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
p.RegisterService("one")
p.RegisterService("one", "two")
assert.Equal(t, 2, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "service one not found")
_, ok = p.status["two"]
assert.True(t, ok, "service two not found")
}
func TestUpdateStatus(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusRunning)
assert.Equal(t, ServiceStatusRunning, p.status["one"], "status not set")
assert.Equal(t, ServiceStatusUnknown, p.status["two"], "status set")
}
func TestRegisterOverwriteStatus(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusRunning)
assert.Equal(t, ServiceStatusRunning, p.status["one"], "status not set")
assert.Equal(t, ServiceStatusUnknown, p.status["two"], "status set")
p.RegisterService("one", "three")
assert.Equal(t, 3, len(p.status), "wrong number of services")
assert.Equal(t, ServiceStatusRunning, p.status["one"], "status overridden")
assert.Equal(t, ServiceStatusUnknown, p.status["two"], "status set")
assert.Equal(t, ServiceStatusUnknown, p.status["three"], "status set")
}
func TestDetailzWithServies(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysTrue)
p.RegisterService("one", "two")
req := httptest.NewRequest("GET", "http://example.com/detailz", nil)
w := httptest.NewRecorder()
p.detailzFunc(w, req)
resp := w.Result()
body, _ := ioutil.ReadAll(resp.Body)
assert.Equal(t, http.StatusOK, resp.StatusCode, "invalid status code for no services")
assert.Equal(t, "application/json", resp.Header.Get("Content-Type"), "wrong content type")
var vals map[string]string
err := json.Unmarshal(body, &vals)
assert.Nil(t, err, "unable to unmarshal values")
assert.Equal(t, "Unknown", vals["one"], "wrong value")
assert.Equal(t, "Unknown", vals["two"], "wrong value")
}
func TestReadzNoServices(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue)
req := httptest.NewRequest("GET", "http://example.com/readz", nil)
w := httptest.NewRecorder()
p.readzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code for no services")
}
func TestReadzWithServicesWithTrue(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysTrue)
p.RegisterService("one", "two")
req := httptest.NewRequest("GET", "http://example.com/readz", nil)
w := httptest.NewRecorder()
p.readzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusOK, resp.StatusCode, "invalid status code for registered only services")
}
func TestReadzWithServicesWithDefault(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
req := httptest.NewRequest("GET", "http://example.com/readz", nil)
w := httptest.NewRecorder()
p.readzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code for registered only services")
}
func TestReadzNpServicesDefault(t *testing.T) {
p := &Probe{}
req := httptest.NewRequest("GET", "http://example.com/readz", nil)
w := httptest.NewRecorder()
p.readzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code")
}
func TestReadzWithServicesDefault(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusRunning)
p.UpdateStatus("two", ServiceStatusRunning)
req := httptest.NewRequest("GET", "http://example.com/readz", nil)
w := httptest.NewRecorder()
p.readzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusOK, resp.StatusCode, "invalid status code")
}
func TestReadzWithServicesDefaultOne(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusRunning)
req := httptest.NewRequest("GET", "http://example.com/readz", nil)
w := httptest.NewRecorder()
p.readzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code")
}
func TestHealthzNoServices(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue)
req := httptest.NewRequest("GET", "http://example.com/healthz", nil)
w := httptest.NewRecorder()
p.healthzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code for no services")
}
func TestHealthzWithServicesWithTrue(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysTrue)
p.RegisterService("one", "two")
req := httptest.NewRequest("GET", "http://example.com/healthz", nil)
w := httptest.NewRecorder()
p.healthzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusOK, resp.StatusCode, "invalid status code for registered only services")
}
func TestHealthzWithServicesWithDefault(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
req := httptest.NewRequest("GET", "http://example.com/healthz", nil)
w := httptest.NewRecorder()
p.healthzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusOK, resp.StatusCode, "invalid status code for registered only services")
}
func TestHealthzNoServicesDefault(t *testing.T) {
p := &Probe{}
req := httptest.NewRequest("GET", "http://example.com/healthz", nil)
w := httptest.NewRecorder()
p.healthzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code")
}
func TestHealthzWithServicesDefault(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusRunning)
p.UpdateStatus("two", ServiceStatusRunning)
req := httptest.NewRequest("GET", "http://example.com/healthz", nil)
w := httptest.NewRecorder()
p.healthzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusOK, resp.StatusCode, "invalid status code")
}
func TestHealthzWithServicesDefaultFailed(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusFailed)
req := httptest.NewRequest("GET", "http://example.com/healthz", nil)
w := httptest.NewRecorder()
p.healthzFunc(w, req)
resp := w.Result()
assert.Equal(t, http.StatusTeapot, resp.StatusCode, "invalid status code")
}
func TestSetFuncsToNil(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysFalse)
p.WithReadyFunc(nil).WithHealthFunc(nil)
assert.Nil(t, p.readyFunc, "ready func not reset to nil")
assert.Nil(t, p.healthFunc, "health func not reset to nil")
}
func TestGetProbeFromContext(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
ctx := context.WithValue(context.Background(), ProbeContextKey, p)
pc := GetProbeFromContext(ctx)
assert.Equal(t, p, pc, "Probe from context was not identical to original probe")
}
func TestGetProbeFromContextMssing(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
pc := GetProbeFromContext(ctx)
assert.Nil(t, pc, "Context had a non-nil probe when it should have been nil")
}
func TestUpdateStatusFromContext(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
ctx := context.WithValue(context.Background(), ProbeContextKey, p)
UpdateStatusFromContext(ctx, "one", ServiceStatusRunning)
assert.Equal(t, 1, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "unable to find registered service")
assert.Equal(t, ServiceStatusRunning, p.status["one"], "status not set correctly from context")
}
func TestUpdateStatusFromNilContext(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
// nolint: staticcheck
UpdateStatusFromContext(nil, "one", ServiceStatusRunning)
assert.Equal(t, 1, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "unable to find registered service")
assert.Equal(t, ServiceStatusUnknown, p.status["one"], "status not set correctly from context")
}
func TestUpdateStatusFromContextWithoutProbe(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
UpdateStatusFromContext(ctx, "one", ServiceStatusRunning)
assert.Equal(t, 1, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "unable to find registered service")
assert.Equal(t, ServiceStatusUnknown, p.status["one"], "status not set correctly from context")
}
func TestUpdateStatusFromContextWrongType(t *testing.T) {
p := &Probe{}
p.RegisterService("one")
ctx := context.WithValue(context.Background(), ProbeContextKey, "Teapot")
UpdateStatusFromContext(ctx, "one", ServiceStatusRunning)
assert.Equal(t, 1, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "unable to find registered service")
assert.Equal(t, ServiceStatusUnknown, p.status["one"], "status not set correctly from context")
}
func TestUpdateStatusNoRegistered(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysFalse)
p.UpdateStatus("one", ServiceStatusRunning)
assert.Equal(t, 1, len(p.status), "wrong number of services")
_, ok := p.status["one"]
assert.True(t, ok, "unable to find registered service")
assert.Equal(t, ServiceStatusRunning, p.status["one"], "status not set correctly from context")
}
func TestIsReadyTrue(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysTrue).WithHealthFunc(AlwaysFalse)
p.RegisterService("SomeService")
assert.True(t, p.IsReady(), "IsReady should have been true")
}
func TestIsReadyFalse(t *testing.T) {
p := (&Probe{}).WithReadyFunc(AlwaysFalse).WithHealthFunc(AlwaysFalse)
p.RegisterService("SomeService")
assert.False(t, p.IsReady(), "IsReady should have been false")
}
func TestGetStatus(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
p.UpdateStatus("one", ServiceStatusRunning)
ss := p.GetStatus("one")
assert.Equal(t, ServiceStatusRunning, ss, "Service status should have been ServiceStatusRunning")
}
func TestGetStatusMissingService(t *testing.T) {
p := &Probe{}
p.RegisterService("one", "two")
ss := p.GetStatus("three")
assert.Equal(t, ServiceStatusUnknown, ss, "Service status should have been ServiceStatusUnknown")
}