Stream WhisperX uploads safely

internal/adapters/whisperx/fake_test.go

@@ -3,6 +3,7 @@ package whisperx
 import (
 	"context"
 	"errors"
+	"sync"
 	"testing"
 )
 
@@ -14,8 +15,9 @@ func TestFakeClientCapturesRequestAndReturnsPath(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Transcribe() error = %v", err)
 	}
-	if len(fake.Requests) != 1 || fake.Requests[0].SpeakerID != "alice" {
-		t.Fatalf("requests = %#v, want one alice request", fake.Requests)
+	requests := fake.RequestsSnapshot()
+	if len(requests) != 1 || requests[0].SpeakerID != "alice" {
+		t.Fatalf("requests = %#v, want one alice request", requests)
 	}
 	if res.OutputRawTranscriptPath != req.OutputRawTranscriptPath {
 		t.Fatalf("output path = %q, want %q", res.OutputRawTranscriptPath, req.OutputRawTranscriptPath)
@@ -29,3 +31,22 @@ func TestFakeClientError(t *testing.T) {
 		t.Fatal("expected error, got nil")
 	}
 }
+
+func TestFakeClientRequestsSnapshotSupportsConcurrentCalls(t *testing.T) {
+	fake := &FakeClient{}
+	const callers = 16
+	var group sync.WaitGroup
+	group.Add(callers)
+	for i := 0; i < callers; i++ {
+		go func() {
+			defer group.Done()
+			if _, err := fake.Transcribe(context.Background(), TranscribeRequest{}); err != nil {
+				t.Errorf("Transcribe() error = %v", err)
+			}
+		}()
+	}
+	group.Wait()
+	if got := len(fake.RequestsSnapshot()); got != callers {
+		t.Fatalf("captured requests = %d, want %d", got, callers)
+	}
+}