feat: notification service

integration/internal/harness/process.go

@@ -32,8 +32,9 @@ type Process struct {
 	logsMu sync.Mutex
 	logs   bytes.Buffer
 
-	doneCh  chan struct{}
-	waitErr error
+	doneCh              chan struct{}
+	waitErr             error
+	allowUnexpectedExit bool
 }
 
 // StartProcess starts binaryPath with envOverrides and registers cleanup that
@@ -82,7 +83,7 @@ func (p *Process) Stop(t testing.TB) {
 	select {
 	case <-p.doneCh:
 		err := p.waitErr
-		if err != nil && !isExpectedProcessExit(err) {
+		if err != nil && !isExpectedProcessExit(err) && !p.allowUnexpectedExit {
 			t.Errorf("%s exited unexpectedly: %v", p.name, err)
 		}
 		return
@@ -96,7 +97,7 @@ func (p *Process) Stop(t testing.TB) {
 	select {
 	case <-p.doneCh:
 		err := p.waitErr
-		if err != nil && !isExpectedProcessExit(err) {
+		if err != nil && !isExpectedProcessExit(err) && !p.allowUnexpectedExit {
 			t.Errorf("%s exited unexpectedly: %v", p.name, err)
 		}
 	case <-time.After(defaultStopWait):
@@ -105,12 +106,22 @@ func (p *Process) Stop(t testing.TB) {
 		}
 		<-p.doneCh
 		err := p.waitErr
-		if err != nil && !isExpectedProcessExit(err) {
+		if err != nil && !isExpectedProcessExit(err) && !p.allowUnexpectedExit {
 			t.Errorf("%s exited unexpectedly: %v", p.name, err)
 		}
 	}
 }
 
+// AllowUnexpectedExit marks a process exit as expected for tests that
+// deliberately trigger a fatal runtime dependency failure.
+func (p *Process) AllowUnexpectedExit() {
+	if p == nil {
+		return
+	}
+
+	p.allowUnexpectedExit = true
+}
+
 // Logs returns the captured combined stdout/stderr output of the process.
 func (p *Process) Logs() string {
 	if p == nil {