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/*
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* Minio Cloud Storage, (C) 2017 Minio, Inc.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 handlers
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import (
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"bytes"
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"io"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"regexp"
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"testing"
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)
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func wsTestSuccessHandler(w http.ResponseWriter, r *http.Request) {
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// A very simple health check.
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w.WriteHeader(http.StatusOK)
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w.Header().Set("Content-Type", "application/json")
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ioutil.ReadAll(r.Body)
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// In the future we could report back on the status of our DB, or our cache
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// (e.g. Redis) by performing a simple PING, and include them in the response.
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io.WriteString(w, `{"success": true}`)
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}
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func wsTest404Handler(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusNotFound)
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}
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func TestTraceHTTPHandler(t *testing.T) {
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logOutput := bytes.NewBuffer([]byte(""))
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testCases := []struct {
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method string
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path string
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sentData string
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headers map[string]string
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handler http.HandlerFunc
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expectedStatus int
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expectedLogRegexp string
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}{
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{
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method: "PUT",
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path: "/test-log",
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sentData: "sending data",
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headers: map[string]string{"Test-Header": "TestHeaderValue"},
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handler: TraceReqHandlerFunc(http.HandlerFunc(wsTestSuccessHandler), logOutput, true),
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expectedStatus: http.StatusOK,
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expectedLogRegexp: `\[REQUEST github.com/minio/minio/pkg/handlers.wsTestSuccessHandler\] \[[^\]]*\] \[[^\]]*\]
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PUT /test-log
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Host:\
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Test-Header: TestHeaderValue
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sending data
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\[RESPONSE\] \[[^\]]*\] \[[^\]]*\]
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200 OK
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{"success": true}
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`,
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},
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{
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method: "POST",
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path: "/test-log",
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handler: TraceReqHandlerFunc(http.HandlerFunc(wsTestSuccessHandler), logOutput, false),
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headers: map[string]string{"Test-Header": "TestHeaderValue"},
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expectedStatus: http.StatusOK,
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expectedLogRegexp: `\[REQUEST github.com/minio/minio/pkg/handlers.wsTestSuccessHandler\] \[[^\]]*\] \[[^\]]*\]
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POST /test-log
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Host:\
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Test-Header: TestHeaderValue
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<BODY>
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\[RESPONSE\] \[[^\]]*\] \[[^\]]*\]
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200 OK
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<BODY>
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`,
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},
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{
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method: "POST",
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path: "/test-log",
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handler: TraceReqHandlerFunc(http.HandlerFunc(wsTest404Handler), logOutput, false),
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headers: map[string]string{"Test-Header": "TestHeaderValue"},
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expectedStatus: http.StatusNotFound,
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expectedLogRegexp: `\[REQUEST github.com/minio/minio/pkg/handlers.wsTest404Handler\] \[[^\]]*\] \[[^\]]*\]
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POST /test-log
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Host:\
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Test-Header: TestHeaderValue
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<BODY>
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\[RESPONSE\] \[[^\]]*\] \[[^\]]*\]
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404 Not Found
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<BODY>
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`,
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},
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}
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for i, testCase := range testCases {
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logOutput.Reset()
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req, err := http.NewRequest(testCase.method, testCase.path, bytes.NewBuffer([]byte(testCase.sentData)))
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if err != nil {
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t.Fatalf("Test %d: %v\n", i+1, err)
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}
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for k, v := range testCase.headers {
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req.Header.Set(k, v)
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}
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rr := httptest.NewRecorder()
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handler := testCase.handler
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handler.ServeHTTP(rr, req)
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// Check the status code is what we expect.
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if status := rr.Code; status != testCase.expectedStatus {
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t.Errorf("Test %d: handler returned wrong status code: got %v want %v", i+1,
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status, testCase.expectedStatus)
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}
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matched, err := regexp.MatchString(testCase.expectedLogRegexp, logOutput.String())
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if err != nil {
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t.Fatalf("Test %d: Incorrect regexp: %v", i+1, err)
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}
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if !matched {
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t.Fatalf("Test %d: Unexpected log content, found: `%s`", i+1, logOutput.String())
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}
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}
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}
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