feat: account dispute emails

mail/dispute_test.go

@@ -0,0 +1,70 @@
+package mail
+
+import (
+	"strings"
+	"testing"
+	"time"
+)
+
+func sampleNotice() DisputeNotice {
+	return DisputeNotice{
+		AccountName:  "Smith & Sons",
+		DisputeID:    "dsp_123",
+		Reason:       "Breach of the terms of service",
+		CloudNames:   []string{"smith-prod"},
+		SelfHosted:   []SelfHostedNotice{{Name: "smith-dc", LicenceExpires: time.Date(2026, 11, 2, 0, 0, 0, 0, time.UTC)}},
+		DisputeEmail: "disputes@vantage.example",
+		DisputeBy:    time.Date(2026, 9, 17, 10, 0, 0, 0, time.UTC),
+	}
+}
+
+var disputeTemplates = []string{"accountlocked", "disputereminder", "accountterminated", "accountrestored"}
+
+func TestDisputeTemplatesRender(t *testing.T) {
+	for _, name := range disputeTemplates {
+		t.Run(name, func(t *testing.T) {
+			m, err := render(name, sampleNotice())
+			if err != nil {
+				t.Fatalf("render: %v", err)
+			}
+			if !strings.Contains(m.Subject, "Smith & Sons") {
+				t.Errorf("subject %q does not name the account verbatim", m.Subject)
+			}
+			for label, body := range map[string]string{"text": m.Text, "html": m.HTML} {
+				if strings.Contains(body, "<no value>") {
+					t.Errorf("%s body has an unfilled field", label)
+				}
+				if strings.Contains(body, "—") {
+					t.Errorf("%s body contains an em dash", label)
+				}
+			}
+		})
+	}
+}
+
+func TestDisputeRouteIsStated(t *testing.T) {
+	for _, name := range []string{"accountlocked", "disputereminder"} {
+		m, err := render(name, sampleNotice())
+		if err != nil {
+			t.Fatalf("render %s: %v", name, err)
+		}
+		for _, want := range []string{"disputes@vantage.example", "dsp_123", "17 September 2026"} {
+			if !strings.Contains(m.Text, want) {
+				t.Errorf("%s text is missing %q", name, want)
+			}
+		}
+	}
+}
+
+func TestInstanceRows(t *testing.T) {
+	rows := sampleNotice().InstanceRows()
+	if len(rows) != 2 {
+		t.Fatalf("got %d rows, want 2", len(rows))
+	}
+	if rows[0]["v"] != "smith-prod" {
+		t.Errorf("cloud row = %v", rows[0])
+	}
+	if v, _ := rows[1]["v"].(string); !strings.Contains(v, "licence ends 2 November 2026") {
+		t.Errorf("self-hosted row = %v", rows[1])
+	}
+}