86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package emptybackendhandler
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"net/url"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/traefik/traefik/v2/pkg/testhelpers"
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"github.com/vulcand/oxy/v2/roundrobin"
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)
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func TestEmptyBackendHandler(t *testing.T) {
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testCases := []struct {
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amountServer int
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expectedStatusCode int
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}{
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{
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amountServer: 0,
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expectedStatusCode: http.StatusServiceUnavailable,
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},
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{
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amountServer: 1,
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expectedStatusCode: http.StatusOK,
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(fmt.Sprintf("amount servers %d", test.amountServer), func(t *testing.T) {
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t.Parallel()
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handler := New(&healthCheckLoadBalancer{amountServer: test.amountServer})
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recorder := httptest.NewRecorder()
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req := httptest.NewRequest(http.MethodGet, "http://localhost", nil)
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handler.ServeHTTP(recorder, req)
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assert.Equal(t, test.expectedStatusCode, recorder.Result().StatusCode)
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})
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}
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}
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type healthCheckLoadBalancer struct {
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amountServer int
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}
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func (lb *healthCheckLoadBalancer) RegisterStatusUpdater(fn func(up bool)) error {
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return nil
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}
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func (lb *healthCheckLoadBalancer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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}
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func (lb *healthCheckLoadBalancer) Servers() []*url.URL {
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servers := make([]*url.URL, lb.amountServer)
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for i := 0; i < lb.amountServer; i++ {
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servers = append(servers, testhelpers.MustParseURL("http://localhost"))
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}
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return servers
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}
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func (lb *healthCheckLoadBalancer) RemoveServer(u *url.URL) error {
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return nil
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}
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func (lb *healthCheckLoadBalancer) UpsertServer(u *url.URL, options ...roundrobin.ServerOption) error {
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return nil
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}
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func (lb *healthCheckLoadBalancer) ServerWeight(u *url.URL) (int, bool) {
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return 0, false
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}
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func (lb *healthCheckLoadBalancer) NextServer() (*url.URL, error) {
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return nil, nil
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}
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func (lb *healthCheckLoadBalancer) Next() http.Handler {
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return nil
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}
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