prometheus/storage/remote/client_test.go

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2017-05-10 02:44:13 -07:00
// Copyright 2017 The Prometheus Authors
// 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 remote
package remote
import (
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"reflect"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config"
)
var longErrMessage = strings.Repeat("error message", maxErrMsgLen)
func TestStoreHTTPErrorHandling(t *testing.T) {
tests := []struct {
code int
err error
}{
{
code: 200,
err: nil,
},
{
code: 300,
err: fmt.Errorf("server returned HTTP status 300 Multiple Choices: " + longErrMessage[:maxErrMsgLen]),
},
{
code: 404,
err: fmt.Errorf("server returned HTTP status 404 Not Found: " + longErrMessage[:maxErrMsgLen]),
},
{
code: 500,
err: recoverableError{fmt.Errorf("server returned HTTP status 500 Internal Server Error: " + longErrMessage[:maxErrMsgLen])},
},
}
for i, test := range tests {
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Error(w, longErrMessage, test.code)
}),
)
serverURL, err := url.Parse(server.URL)
if err != nil {
panic(err)
}
c, err := NewClient(0, &clientConfig{
url: &config.URL{serverURL},
timeout: model.Duration(time.Second),
})
err = c.Store(nil)
if !reflect.DeepEqual(err, test.err) {
t.Errorf("%d. Unexpected error; want %v, got %v", i, test.err, err)
}
server.Close()
}
}