90 lines
2.4 KiB
Go
90 lines
2.4 KiB
Go
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/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package tcp
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import (
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"net"
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"net/http"
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"net/http/httptest"
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"strconv"
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"strings"
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"testing"
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"time"
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"k8s.io/kubernetes/pkg/probe"
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)
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func containsAny(s string, substrs []string) bool {
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for _, substr := range substrs {
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if strings.Contains(s, substr) {
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return true
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}
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}
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return false
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}
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func TestTcpHealthChecker(t *testing.T) {
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// Setup a test server that responds to probing correctly
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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}))
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defer server.Close()
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tHost, tPortStr, err := net.SplitHostPort(server.Listener.Addr().String())
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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tPort, err := strconv.Atoi(tPortStr)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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tests := []struct {
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host string
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port int
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expectedStatus probe.Result
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expectedError error
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// Some errors are different depending on your system.
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// The test passes as long as the output matches one of them.
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expectedOutputs []string
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}{
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// A connection is made and probing would succeed
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{tHost, tPort, probe.Success, nil, []string{""}},
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// No connection can be made and probing would fail
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{tHost, -1, probe.Failure, nil, []string{
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"unknown port",
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"Servname not supported for ai_socktype",
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"nodename nor servname provided, or not known",
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"dial tcp: invalid port",
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}},
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}
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prober := New()
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for i, tt := range tests {
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status, output, err := prober.Probe(tt.host, tt.port, 1*time.Second)
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if status != tt.expectedStatus {
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t.Errorf("#%d: expected status=%v, get=%v", i, tt.expectedStatus, status)
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}
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if err != tt.expectedError {
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t.Errorf("#%d: expected error=%v, get=%v", i, tt.expectedError, err)
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}
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if !containsAny(output, tt.expectedOutputs) {
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t.Errorf("#%d: expected output=one of %#v, get=%s", i, tt.expectedOutputs, output)
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}
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}
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}
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