96 lines
2.2 KiB
Go
96 lines
2.2 KiB
Go
/*
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Copyright 2020 Qiniu Cloud (七牛云)
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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 cover
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import (
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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)
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// Action provides methods to contact with the coverd service under test
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type Action interface {
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Profile(host string) ([]byte, error)
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Clear() error
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InitSystem(host string) ([]byte, error)
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}
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// CoverProfileAPI is provided by the covered service to get profiles
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const CoverProfileAPI = "/v1/cover/profile"
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// CoverProfileClearAPI is provided by the covered service to clear profiles
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const CoverProfileClearAPI = "/v1/cover/clear"
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// CoverInitSystemAPI prepare a new round of testing
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const CoverInitSystemAPI = "/v1/cover/init"
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type client struct {
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client *http.Client
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}
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// NewWorker creates a worker to contact with service
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func NewWorker() Action {
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return &client{
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client: http.DefaultClient,
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}
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}
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func (w *client) Profile(host string) ([]byte, error) {
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u := fmt.Sprintf("%s%s", host, CoverProfileAPI)
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profile, err := w.do("GET", u, nil)
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if err != nil && isNetworkError(err) {
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profile, err = w.do("GET", u, nil)
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}
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return profile, err
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}
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func (w *client) Clear() error { return nil }
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func (w *client) InitSystem(host string) ([]byte, error) {
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u := fmt.Sprintf("%s%s", host, CoverInitSystemAPI)
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return w.do("POST", u, nil)
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}
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func (w *client) do(method, url string, body io.Reader) ([]byte, error) {
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req, err := http.NewRequest(method, url, body)
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if err != nil {
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return nil, err
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}
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res, err := w.client.Do(req)
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if err != nil {
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return nil, err
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}
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defer res.Body.Close()
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responseBody, err := ioutil.ReadAll(res.Body)
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if err != nil {
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return nil, err
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}
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return responseBody, nil
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}
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func isNetworkError(err error) bool {
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if err == io.EOF {
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return true
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}
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_, ok := err.(net.Error)
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return ok
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}
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