/* Copyright 2014 The Kubernetes Authors All rights reserved. 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 apiserver import ( "bytes" "errors" "fmt" "io/ioutil" "net/http" "testing" "k8s.io/kubernetes/pkg/probe" ) type fakeRoundTripper struct { err error resp *http.Response url string } func (f *fakeRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) { f.url = req.URL.String() return f.resp, f.err } func alwaysError([]byte) error { return errors.New("test error") } func matchError(data []byte) error { if string(data) == "bar" { return errors.New("match error") } return nil } func TestValidate(t *testing.T) { tests := []struct { err error data string expectedStatus probe.Result code int expectErr bool validator ValidatorFn }{ {fmt.Errorf("test error"), "", probe.Unknown, 500 /*ignored*/, true, nil}, {nil, "foo", probe.Success, 200, false, nil}, {nil, "foo", probe.Failure, 500, true, nil}, {nil, "foo", probe.Failure, 200, true, alwaysError}, {nil, "foo", probe.Success, 200, false, matchError}, } s := Server{Addr: "foo.com", Port: 8080, Path: "/healthz"} for _, test := range tests { fakeRT := &fakeRoundTripper{ err: test.err, resp: &http.Response{ Body: ioutil.NopCloser(bytes.NewBufferString(test.data)), StatusCode: test.code, }, } s.Validate = test.validator status, data, err := s.DoServerCheck(fakeRT) expect := fmt.Sprintf("http://%s:%d/healthz", s.Addr, s.Port) if fakeRT.url != expect { t.Errorf("expected %s, got %s", expect, fakeRT.url) } if test.expectErr && err == nil { t.Errorf("unexpected non-error") } if !test.expectErr && err != nil { t.Errorf("unexpected error: %v", err) } if data != test.data { t.Errorf("expected empty string, got %s", status) } if status != test.expectedStatus { t.Errorf("expected %s, got %s", test.expectedStatus, status) } } }