1 files changed, 41 insertions, 0 deletions
diff --git a/internal/submit/message_test.go b/internal/submit/message_test.go
new file mode 100644
index 0000000..c13e958
--- /dev/null
+++ b/internal/submit/message_test.go
@@ -0,0 +1,41 @@
+package submit
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestBuildMessagePublishesProfileIdentityAndTransportSender(t *testing.T) {
+	sub := Submission{
+		From:         "Alice <alice@example.invalid>",
+		Newsgroups:   []string{"misc.test"},
+		Subject:      "Test",
+		Message:      "hello",
+		PublicKeyB64: "unused-without-face",
+		SignatureB64: "unused-without-face",
+	}
+
+	raw, _, err := BuildMessage(
+		sub,
+		"mail2news@mail2news.tcpreset.net",
+		"n2usenet@virebent.art",
+		"n2usenet.virebent.art",
+		"/missing/identicons-cli",
+		false,
+	)
+	if err != nil {
+		t.Fatalf("BuildMessage returned error: %v", err)
+	}
+	if !strings.Contains(raw, "From: \"Alice\" <alice@example.invalid>\r\n") {
+		t.Fatalf("profile identity is not used as the public From:\n%s", raw)
+	}
+	if !strings.Contains(raw, "Sender: <n2usenet@virebent.art>\r\n") {
+		t.Fatalf("transport Sender is missing:\n%s", raw)
+	}
+	if strings.Contains(raw, "From: \"Alice\" <n2usenet@virebent.art>\r\n") {
+		t.Fatalf("transport account replaced the public profile identity:\n%s", raw)
+	}
+	if strings.Contains(raw, "X-N2Usenet-Identity:") {
+		t.Fatalf("redundant private identity header is present:\n%s", raw)
+	}
+}