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|
// +build integration
package xmlrpc
import (
"context"
"io"
"net/http"
"net/http/httptest"
"runtime"
"sync"
"testing"
"time"
)
func Test_CallWithoutArgs(t *testing.T) {
client := newClient(t)
defer client.Close()
var result time.Time
if err := client.Call("service.time", nil, &result); err != nil {
t.Fatalf("service.time call error: %v", err)
}
}
func Test_CallWithOneArg(t *testing.T) {
client := newClient(t)
defer client.Close()
var result string
if err := client.Call("service.upcase", "xmlrpc", &result); err != nil {
t.Fatalf("service.upcase call error: %v", err)
}
if result != "XMLRPC" {
t.Fatalf("Unexpected result of service.upcase: %s != %s", "XMLRPC", result)
}
}
func Test_CallWithTwoArgs(t *testing.T) {
client := newClient(t)
defer client.Close()
var sum int
if err := client.Call("service.sum", []interface{}{2, 3}, &sum); err != nil {
t.Fatalf("service.sum call error: %v", err)
}
if sum != 5 {
t.Fatalf("Unexpected result of service.sum: %d != %d", 5, sum)
}
}
func Test_TwoCalls(t *testing.T) {
client := newClient(t)
defer client.Close()
var upcase string
if err := client.Call("service.upcase", "xmlrpc", &upcase); err != nil {
t.Fatalf("service.upcase call error: %v", err)
}
var sum int
if err := client.Call("service.sum", []interface{}{2, 3}, &sum); err != nil {
t.Fatalf("service.sum call error: %v", err)
}
}
func Test_FailedCall(t *testing.T) {
client := newClient(t)
defer client.Close()
var result int
if err := client.Call("service.error", nil, &result); err == nil {
t.Fatal("expected service.error returns error, but it didn't")
}
}
func Test_ConcurrentCalls(t *testing.T) {
client := newClient(t)
call := func() {
var result time.Time
client.Call("service.time", nil, &result)
}
var wg sync.WaitGroup
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
call()
wg.Done()
}()
}
wg.Wait()
client.Close()
}
func Test_CloseMemoryLeak(t *testing.T) {
expected := runtime.NumGoroutine()
for i := 0; i < 3; i++ {
client := newClient(t)
client.Call("service.time", nil, nil)
client.Close()
}
var actual int
// It takes some time to stop running goroutinges. This function checks number of
// running goroutines. It finishes execution if number is same as expected or timeout
// has been reached.
func() {
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
for {
select {
case <-ctx.Done():
return
default:
actual = runtime.NumGoroutine()
if actual == expected {
return
}
}
}
}()
if actual != expected {
t.Errorf("expected number of running goroutines to be %d, but got %d", expected, actual)
}
}
func Test_BadStatus(t *testing.T) {
// this is a mock xmlrpc server which sends an invalid status code on the first request
// and an empty methodResponse for all subsequence requests
first := true
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if first {
first = false
http.Error(w, "bad status", http.StatusInternalServerError)
} else {
io.WriteString(w, `
<?xml version="1.0" encoding="UTF-8"?>
<methodResponse>
<params>
<param>
<value>
<struct></struct>
</value>
</param>
</params>
</methodResponse>
`)
}
}))
client, err := NewClient(ts.URL, nil)
if err != nil {
t.Fatalf("Can't create client: %v", err)
}
defer client.Close()
var result interface{}
// expect an error due to the bad status code
if err := client.Call("method", nil, &result); err == nil {
t.Fatalf("Bad status didn't result in error")
}
// expect subsequent calls to succeed
if err := client.Call("method", nil, &result); err != nil {
t.Fatalf("Failed to recover after bad status: %v", err)
}
}
func newClient(t *testing.T) *Client {
client, err := NewClient("http://localhost:5001", nil)
if err != nil {
t.Fatalf("Can't create client: %v", err)
}
return client
}
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