mirror of
https://github.com/wneessen/go-mail.git
synced 2024-11-15 02:12:55 +01:00
Refactor test server code for thread safety
Moved serverProps outside goroutines to improve code readability and maintainability. Added a RWMutex to serverProps to ensure thread-safe access to EchoBuffer, preventing race conditions during concurrent writes.
This commit is contained in:
parent
f7bdd8fffc
commit
800c266ccb
GPG key ID:
385AC9889632126E
1 changed files with 92 additions and 68 deletions
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@ -31,6 +31,7 @@ import (
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"net"
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"os"
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"strings"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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@ -2235,17 +2236,17 @@ func TestClient_Mail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-8BITMIME\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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client, err := Dial(fmt.Sprintf("%s:%d", TestServerAddr, serverPort))
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@ -2261,7 +2262,9 @@ func TestClient_Mail(t *testing.T) {
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t.Errorf("failed to set mail from address: %s", err)
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}
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expected := "MAIL FROM:<valid-from@domain.tld> BODY=8BITMIME"
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if !strings.EqualFold(resp[5], expected) {
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t.Errorf("expected mail from command to be %q, but sent %q", expected, resp[5])
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}
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@ -2273,17 +2276,17 @@ func TestClient_Mail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-SMTPUTF8\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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client, err := Dial(fmt.Sprintf("%s:%d", TestServerAddr, serverPort))
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@ -2299,7 +2302,9 @@ func TestClient_Mail(t *testing.T) {
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t.Errorf("failed to set mail from address: %s", err)
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}
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expected := "MAIL FROM:<valid-from@domain.tld> SMTPUTF8"
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if !strings.EqualFold(resp[5], expected) {
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t.Errorf("expected mail from command to be %q, but sent %q", expected, resp[5])
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}
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@ -2311,17 +2316,17 @@ func TestClient_Mail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-SMTPUTF8\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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client, err := Dial(fmt.Sprintf("%s:%d", TestServerAddr, serverPort))
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@ -2337,7 +2342,9 @@ func TestClient_Mail(t *testing.T) {
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t.Errorf("failed to set mail from address: %s", err)
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}
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expected := "MAIL FROM:<valid-from+📧@domain.tld> SMTPUTF8"
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if !strings.EqualFold(resp[5], expected) {
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t.Errorf("expected mail from command to be %q, but sent %q", expected, resp[5])
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}
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@ -2349,17 +2356,17 @@ func TestClient_Mail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-DSN\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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client, err := Dial(fmt.Sprintf("%s:%d", TestServerAddr, serverPort))
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@ -2376,7 +2383,9 @@ func TestClient_Mail(t *testing.T) {
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t.Errorf("failed to set mail from address: %s", err)
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}
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expected := "MAIL FROM:<valid-from@domain.tld> RET=FULL"
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if !strings.EqualFold(resp[5], expected) {
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t.Errorf("expected mail from command to be %q, but sent %q", expected, resp[5])
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}
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@ -2388,17 +2397,17 @@ func TestClient_Mail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-DSN\r\n250-8BITMIME\r\n250-SMTPUTF8\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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client, err := Dial(fmt.Sprintf("%s:%d", TestServerAddr, serverPort))
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@ -2415,7 +2424,9 @@ func TestClient_Mail(t *testing.T) {
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t.Errorf("failed to set mail from address: %s", err)
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}
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expected := "MAIL FROM:<valid-from@domain.tld> BODY=8BITMIME SMTPUTF8 RET=FULL"
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if !strings.EqualFold(resp[7], expected) {
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t.Errorf("expected mail from command to be %q, but sent %q", expected, resp[7])
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}
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@ -2490,17 +2501,17 @@ func TestClient_Rcpt(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-DSN\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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client, err := Dial(fmt.Sprintf("%s:%d", TestServerAddr, serverPort))
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if err != nil {
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@ -2519,7 +2530,9 @@ func TestClient_Rcpt(t *testing.T) {
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t.Error("recpient address with newlines should fail")
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}
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expected := "RCPT TO:<valid-to@domain.tld> NOTIFY=SUCCESS"
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if !strings.EqualFold(resp[5], expected) {
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t.Errorf("expected rcpt to command to be %q, but sent %q", expected, resp[5])
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}
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@ -2782,17 +2795,17 @@ func TestSendMail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-AUTH LOGIN\r\n250-DSN\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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addr := fmt.Sprintf("%s:%d", TestServerAddr, serverPort)
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testHookStartTLS = func(config *tls.Config) {
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@ -2806,7 +2819,9 @@ func TestSendMail(t *testing.T) {
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[]byte("test message")); err != nil {
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t.Fatalf("failed to send mail: %s", err)
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}
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if len(resp)-1 != len(want) {
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t.Fatalf("expected %d lines, but got %d", len(want), len(resp))
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}
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@ -2857,17 +2872,17 @@ func TestSendMail(t *testing.T) {
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serverPort := int(TestServerPortBase + PortAdder.Load())
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featureSet := "250-AUTH LOGIN\r\n250-DSN\r\n250 STARTTLS"
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echoBuffer := bytes.NewBuffer(nil)
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go func(buf *bytes.Buffer) {
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if err := simpleSMTPServer(ctx, t, &serverProps{
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EchoBuffer: buf,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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},
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); err != nil {
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props := &serverProps{
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EchoBuffer: echoBuffer,
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FeatureSet: featureSet,
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ListenPort: serverPort,
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}
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go func() {
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if err := simpleSMTPServer(ctx, t, props); err != nil {
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t.Errorf("failed to start test server: %s", err)
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return
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}
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}(echoBuffer)
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}()
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time.Sleep(time.Millisecond * 30)
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addr := fmt.Sprintf("%s:%d", TestServerAddr, serverPort)
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testHookStartTLS = func(config *tls.Config) {
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@ -2887,7 +2902,9 @@ Goodbye.`)
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if err := SendMail(addr, auth, "valid-from@domain.tld", []string{"valid-to@domain.tld"}, message); err != nil {
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t.Fatalf("failed to send mail: %s", err)
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}
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props.BufferMutex.RLock()
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resp := strings.Split(echoBuffer.String(), "\r\n")
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props.BufferMutex.RUnlock()
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if len(resp)-1 != len(want) {
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t.Errorf("expected %d lines, but got %d", len(want), len(resp))
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}
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@ -3542,6 +3559,7 @@ func testingKey(s string) string { return strings.ReplaceAll(s, "TESTING KEY", "
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// serverProps represents the configuration properties for the SMTP server.
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type serverProps struct {
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BufferMutex sync.RWMutex
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EchoBuffer io.Writer
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FailOnAuth bool
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FailOnDataInit bool
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@ -3640,9 +3658,11 @@ func handleTestServerConnection(connection net.Conn, t *testing.T, props *server
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t.Logf("failed to write line: %s", err)
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}
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if props.EchoBuffer != nil {
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if _, err := props.EchoBuffer.Write([]byte(data + "\r\n")); err != nil {
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t.Errorf("failed write to echo buffer: %s", err)
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props.BufferMutex.Lock()
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if _, berr := props.EchoBuffer.Write([]byte(data + "\r\n")); berr != nil {
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t.Errorf("failed write to echo buffer: %s", berr)
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}
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props.BufferMutex.Unlock()
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}
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_ = writer.Flush()
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}
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@ -3665,9 +3685,11 @@ func handleTestServerConnection(connection net.Conn, t *testing.T, props *server
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}
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time.Sleep(time.Millisecond)
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if props.EchoBuffer != nil {
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props.BufferMutex.Lock()
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if _, berr := props.EchoBuffer.Write([]byte(data)); berr != nil {
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t.Errorf("failed write to echo buffer: %s", berr)
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}
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props.BufferMutex.Unlock()
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}
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var datastring string
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@ -3768,9 +3790,11 @@ func handleTestServerConnection(connection net.Conn, t *testing.T, props *server
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break
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}
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if props.EchoBuffer != nil {
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if _, err := props.EchoBuffer.Write([]byte(ddata)); err != nil {
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t.Errorf("failed write to echo buffer: %s", err)
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props.BufferMutex.Lock()
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if _, berr := props.EchoBuffer.Write([]byte(ddata)); berr != nil {
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t.Errorf("failed write to echo buffer: %s", berr)
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}
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props.BufferMutex.Unlock()
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}
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ddata = strings.TrimSpace(ddata)
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if ddata == "." {
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