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// Copyright 2017 Vector Creations Ltd
//
// 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 test
import (
"crypto/tls"
"fmt"
"io"
"io/ioutil"
"net/http"
"sync"
"time"
"github.com/matrix-org/gomatrixserverlib"
)
// Request contains the information necessary to issue a request and test its result
type Request struct {
Req *http.Request
WantedBody string
WantedStatusCode int
LastErr *LastRequestErr
}
// LastRequestErr is a synchronised error wrapper
// Useful for obtaining the last error from a set of requests
type LastRequestErr struct {
sync.Mutex
Err error
}
// Set sets the error
func (r *LastRequestErr) Set(err error) {
r.Lock()
defer r.Unlock()
r.Err = err
}
// Get gets the error
func (r *LastRequestErr) Get() error {
r.Lock()
defer r.Unlock()
return r.Err
}
// CanonicalJSONInput canonicalises a slice of JSON strings
// Useful for test input
func CanonicalJSONInput(jsonData []string) []string {
for i := range jsonData {
jsonBytes, err := gomatrixserverlib.CanonicalJSON([]byte(jsonData[i]))
if err != nil && err != io.EOF {
panic(err)
}
jsonData[i] = string(jsonBytes)
}
return jsonData
}
// Do issues a request and checks the status code and body of the response
func (r *Request) Do() (err error) {
client := &http.Client{
Timeout: 5 * time.Second,
Transport: &http.Transport{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
},
}
res, err := client.Do(r.Req)
if err != nil {
return err
}
defer (func() { err = res.Body.Close() })()
if res.StatusCode != r.WantedStatusCode {
return fmt.Errorf("incorrect status code. Expected: %d Got: %d", r.WantedStatusCode, res.StatusCode)
}
if r.WantedBody != "" {
resBytes, err := ioutil.ReadAll(res.Body)
if err != nil {
return err
}
jsonBytes, err := gomatrixserverlib.CanonicalJSON(resBytes)
if err != nil {
return err
}
if string(jsonBytes) != r.WantedBody {
return fmt.Errorf("returned wrong bytes. Expected:\n%s\n\nGot:\n%s", r.WantedBody, string(jsonBytes))
}
}
return nil
}
// DoUntilSuccess blocks and repeats the same request until the response returns the desired status code and body.
// It then closes the given channel and returns.
func (r *Request) DoUntilSuccess(done chan error) {
r.LastErr = &LastRequestErr{}
for {
if err := r.Do(); err != nil {
r.LastErr.Set(err)
time.Sleep(1 * time.Second) // don't tightloop
continue
}
close(done)
return
}
}
// Run repeatedly issues a request until success, error or a timeout is reached
func (r *Request) Run(label string, timeout time.Duration, serverCmdChan chan error) {
fmt.Printf("==TESTING== %v (timeout: %v)\n", label, timeout)
done := make(chan error, 1)
// We need to wait for the server to:
// - have connected to the database
// - have created the tables
// - be listening on the given port
go r.DoUntilSuccess(done)
// wait for one of:
// - the test to pass (done channel is closed)
// - the server to exit with an error (error sent on serverCmdChan)
// - our test timeout to expire
// We don't need to clean up since the main() function handles that in the event we panic
select {
case <-time.After(timeout):
fmt.Printf("==TESTING== %v TIMEOUT\n", label)
if reqErr := r.LastErr.Get(); reqErr != nil {
fmt.Println("Last /sync request error:")
fmt.Println(reqErr)
}
panic(fmt.Sprintf("%v server timed out", label))
case err := <-serverCmdChan:
if err != nil {
fmt.Println("=============================================================================================")
fmt.Printf("%v server failed to run. If failing with 'pq: password authentication failed for user' try:", label)
fmt.Println(" export PGHOST=/var/run/postgresql")
fmt.Println("=============================================================================================")
panic(err)
}
case <-done:
fmt.Printf("==TESTING== %v PASSED\n", label)
}
}
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