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gatus/controller/controller_test.go
TwinProduction 99fa632021 Increase test coverage
2021-02-25 19:02:02 -05:00

334 lines
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Go
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package controller
import (
"math/rand"
"net/http"
"net/http/httptest"
"os"
"testing"
"time"
"github.com/TwinProduction/gatus/config"
"github.com/TwinProduction/gatus/core"
"github.com/TwinProduction/gatus/storage"
"github.com/TwinProduction/gatus/watchdog"
)
var (
firstCondition = core.Condition("[STATUS] == 200")
secondCondition = core.Condition("[RESPONSE_TIME] < 500")
thirdCondition = core.Condition("[CERTIFICATE_EXPIRATION] < 72h")
timestamp = time.Now()
testService = core.Service{
Name: "name",
Group: "group",
URL: "https://example.org/what/ever",
Method: "GET",
Body: "body",
Interval: 30 * time.Second,
Conditions: []*core.Condition{&firstCondition, &secondCondition, &thirdCondition},
Alerts: nil,
Insecure: false,
NumberOfFailuresInARow: 0,
NumberOfSuccessesInARow: 0,
}
testSuccessfulResult = core.Result{
Hostname: "example.org",
IP: "127.0.0.1",
HTTPStatus: 200,
Body: []byte("body"),
Errors: nil,
Connected: true,
Success: true,
Timestamp: timestamp,
Duration: 150 * time.Millisecond,
CertificateExpiration: 10 * time.Hour,
ConditionResults: []*core.ConditionResult{
{
Condition: "[STATUS] == 200",
Success: true,
},
{
Condition: "[RESPONSE_TIME] < 500",
Success: true,
},
{
Condition: "[CERTIFICATE_EXPIRATION] < 72h",
Success: true,
},
},
}
testUnsuccessfulResult = core.Result{
Hostname: "example.org",
IP: "127.0.0.1",
HTTPStatus: 200,
Body: []byte("body"),
Errors: []string{"error-1", "error-2"},
Connected: true,
Success: false,
Timestamp: timestamp,
Duration: 750 * time.Millisecond,
CertificateExpiration: 10 * time.Hour,
ConditionResults: []*core.ConditionResult{
{
Condition: "[STATUS] == 200",
Success: true,
},
{
Condition: "[RESPONSE_TIME] < 500",
Success: false,
},
{
Condition: "[CERTIFICATE_EXPIRATION] < 72h",
Success: false,
},
},
}
)
func TestCreateRouter(t *testing.T) {
defer storage.Get().Clear()
defer cache.Clear()
staticFolder = "../web/static"
cfg := &config.Config{
Metrics: true,
Services: []*core.Service{
{
Name: "frontend",
Group: "core",
},
{
Name: "backend",
Group: "core",
},
},
}
watchdog.UpdateServiceStatuses(cfg.Services[0], &core.Result{Success: true, Duration: time.Millisecond, Timestamp: time.Now()})
watchdog.UpdateServiceStatuses(cfg.Services[1], &core.Result{Success: false, Duration: time.Second, Timestamp: time.Now()})
router := CreateRouter(cfg)
type Scenario struct {
Name string
Path string
ExpectedCode int
Gzip bool
}
scenarios := []Scenario{
{
Name: "health",
Path: "/health",
ExpectedCode: http.StatusOK,
},
{
Name: "metrics",
Path: "/metrics",
ExpectedCode: http.StatusOK,
},
{
Name: "badges-1h",
Path: "/api/v1/badges/uptime/1h/core_frontend.svg",
ExpectedCode: http.StatusOK,
},
{
Name: "badges-24h",
Path: "/api/v1/badges/uptime/24h/core_backend.svg",
ExpectedCode: http.StatusOK,
},
{
Name: "badges-7d",
Path: "/api/v1/badges/uptime/7d/core_frontend.svg",
ExpectedCode: http.StatusOK,
},
{
Name: "badges-with-invalid-duration",
Path: "/api/v1/badges/uptime/3d/core_backend.svg",
ExpectedCode: http.StatusBadRequest,
},
{
Name: "badges-for-invalid-key",
Path: "/api/v1/badges/uptime/7d/invalid_key.svg",
ExpectedCode: http.StatusNotFound,
},
{
Name: "service-statuses",
Path: "/api/v1/statuses",
ExpectedCode: http.StatusOK,
},
{
Name: "service-statuses-gzip",
Path: "/api/v1/statuses",
ExpectedCode: http.StatusOK,
Gzip: true,
},
{
Name: "service-statuses-pagination",
Path: "/api/v1/statuses?page=1&pageSize=20",
ExpectedCode: http.StatusOK,
},
{
Name: "service-status",
Path: "/api/v1/statuses/core_frontend",
ExpectedCode: http.StatusOK,
},
{
Name: "service-status-gzip",
Path: "/api/v1/statuses/core_frontend",
ExpectedCode: http.StatusOK,
Gzip: true,
},
{
Name: "service-status-for-invalid-key",
Path: "/api/v1/statuses/invalid_key",
ExpectedCode: http.StatusNotFound,
},
{
Name: "favicon",
Path: "/favicon.ico",
ExpectedCode: http.StatusOK,
},
{
Name: "frontend-home",
Path: "/",
ExpectedCode: http.StatusOK,
},
{
Name: "frontend-assets",
Path: "/js/app.js",
ExpectedCode: http.StatusOK,
},
{
Name: "frontend-service",
Path: "/services/core_frontend",
ExpectedCode: http.StatusOK,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
request, _ := http.NewRequest("GET", scenario.Path, nil)
if scenario.Gzip {
request.Header.Set("Accept-Encoding", "gzip")
}
responseRecorder := httptest.NewRecorder()
router.ServeHTTP(responseRecorder, request)
if responseRecorder.Code != scenario.ExpectedCode {
t.Errorf("%s %s should have returned %d, but returned %d instead", request.Method, request.URL, scenario.ExpectedCode, responseRecorder.Code)
}
})
}
}
func TestHandle(t *testing.T) {
defer storage.Get().Clear()
defer cache.Clear()
cfg := &config.Config{
Web: &config.WebConfig{
Address: "0.0.0.0",
Port: rand.Intn(65534),
},
Services: []*core.Service{
{
Name: "frontend",
Group: "core",
},
{
Name: "backend",
Group: "core",
},
},
}
config.Set(cfg)
defer config.Set(nil)
_ = os.Setenv("ROUTER_TEST", "true")
_ = os.Setenv("ENVIRONMENT", "dev")
defer os.Clearenv()
Handle()
defer Shutdown()
request, _ := http.NewRequest("GET", "/health", nil)
responseRecorder := httptest.NewRecorder()
server.Handler.ServeHTTP(responseRecorder, request)
if responseRecorder.Code != http.StatusOK {
t.Error("expected GET /health to return status code 200")
}
if server == nil {
t.Fatal("server should've been set (but because we set ROUTER_TEST, it shouldn't have been started)")
}
}
func TestShutdown(t *testing.T) {
// Pretend that we called controller.Handle(), which initializes the server variable
server = &http.Server{}
Shutdown()
if server != nil {
t.Error("server should've been shut down")
}
}
func TestServiceStatusesHandler(t *testing.T) {
defer storage.Get().Clear()
defer cache.Clear()
staticFolder = "../web/static"
firstResult := &testSuccessfulResult
secondResult := &testUnsuccessfulResult
storage.Get().Insert(&testService, firstResult)
storage.Get().Insert(&testService, secondResult)
// Can't be bothered dealing with timezone issues on the worker that runs the automated tests
firstResult.Timestamp = time.Time{}
secondResult.Timestamp = time.Time{}
router := CreateRouter(&config.Config{})
type Scenario struct {
Name string
Path string
ExpectedCode int
ExpectedBody string
}
scenarios := []Scenario{
{
Name: "no-pagination",
Path: "/api/v1/statuses",
ExpectedCode: http.StatusOK,
ExpectedBody: `{"group_name":{"name":"name","group":"group","key":"group_name","results":[{"status":200,"hostname":"example.org","duration":150000000,"errors":null,"conditionResults":[{"condition":"[STATUS] == 200","success":true},{"condition":"[RESPONSE_TIME] \u003c 500","success":true},{"condition":"[CERTIFICATE_EXPIRATION] \u003c 72h","success":true}],"success":true,"timestamp":"0001-01-01T00:00:00Z"},{"status":200,"hostname":"example.org","duration":750000000,"errors":["error-1","error-2"],"conditionResults":[{"condition":"[STATUS] == 200","success":true},{"condition":"[RESPONSE_TIME] \u003c 500","success":false},{"condition":"[CERTIFICATE_EXPIRATION] \u003c 72h","success":false}],"success":false,"timestamp":"0001-01-01T00:00:00Z"}]}}`,
},
{
Name: "pagination-first-result",
Path: "/api/v1/statuses?page=1&pageSize=1",
ExpectedCode: http.StatusOK,
ExpectedBody: `{"group_name":{"name":"name","group":"group","key":"group_name","results":[{"status":200,"hostname":"example.org","duration":750000000,"errors":["error-1","error-2"],"conditionResults":[{"condition":"[STATUS] == 200","success":true},{"condition":"[RESPONSE_TIME] \u003c 500","success":false},{"condition":"[CERTIFICATE_EXPIRATION] \u003c 72h","success":false}],"success":false,"timestamp":"0001-01-01T00:00:00Z"}]}}`,
},
{
Name: "pagination-second-result",
Path: "/api/v1/statuses?page=2&pageSize=1",
ExpectedCode: http.StatusOK,
ExpectedBody: `{"group_name":{"name":"name","group":"group","key":"group_name","results":[{"status":200,"hostname":"example.org","duration":150000000,"errors":null,"conditionResults":[{"condition":"[STATUS] == 200","success":true},{"condition":"[RESPONSE_TIME] \u003c 500","success":true},{"condition":"[CERTIFICATE_EXPIRATION] \u003c 72h","success":true}],"success":true,"timestamp":"0001-01-01T00:00:00Z"}]}}`,
},
{
Name: "pagination-no-results",
Path: "/api/v1/statuses?page=5&pageSize=20",
ExpectedCode: http.StatusOK,
ExpectedBody: `{"group_name":{"name":"name","group":"group","key":"group_name","results":[]}}`,
},
{
Name: "invalid-pagination-should-fall-back-to-default",
Path: "/api/v1/statuses?page=INVALID&pageSize=INVALID",
ExpectedCode: http.StatusOK,
ExpectedBody: `{"group_name":{"name":"name","group":"group","key":"group_name","results":[{"status":200,"hostname":"example.org","duration":150000000,"errors":null,"conditionResults":[{"condition":"[STATUS] == 200","success":true},{"condition":"[RESPONSE_TIME] \u003c 500","success":true},{"condition":"[CERTIFICATE_EXPIRATION] \u003c 72h","success":true}],"success":true,"timestamp":"0001-01-01T00:00:00Z"},{"status":200,"hostname":"example.org","duration":750000000,"errors":["error-1","error-2"],"conditionResults":[{"condition":"[STATUS] == 200","success":true},{"condition":"[RESPONSE_TIME] \u003c 500","success":false},{"condition":"[CERTIFICATE_EXPIRATION] \u003c 72h","success":false}],"success":false,"timestamp":"0001-01-01T00:00:00Z"}]}}`,
},
}
for _, scenario := range scenarios {
t.Run(scenario.Name, func(t *testing.T) {
request, _ := http.NewRequest("GET", scenario.Path, nil)
responseRecorder := httptest.NewRecorder()
router.ServeHTTP(responseRecorder, request)
if responseRecorder.Code != scenario.ExpectedCode {
t.Errorf("%s %s should have returned %d, but returned %d instead", request.Method, request.URL, scenario.ExpectedCode, responseRecorder.Code)
}
output := responseRecorder.Body.String()
if output != scenario.ExpectedBody {
t.Errorf("expected:\n %s\n\ngot:\n %s", scenario.ExpectedBody, output)
}
})
}
}
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