test: cover zap helpers and newsletter data

- useZapTotals: zapTargetKey (regular id vs addressable coord) and
  zapReceiptSats (amount tag -> bolt11 -> description JSON -> 0, malformed safe)
- newsletterIssues: schema, newest-first ordering, publish hashtags

src/hooks/useZapTotals.test.ts

@@ -0,0 +1,85 @@
+import { describe, it, expect } from 'vitest';
+import type { NostrEvent } from '@nostrify/nostrify';
+import { zapTargetKey, zapReceiptSats } from './useZapTotals';
+
+/** Minimal event factory — only the fields these helpers read. */
+function ev(partial: Partial<NostrEvent> & Pick<NostrEvent, 'kind' | 'pubkey' | 'id'>): NostrEvent {
+  return {
+    content: '',
+    created_at: 0,
+    sig: '',
+    tags: [],
+    ...partial,
+  } as NostrEvent;
+}
+
+describe('zapTargetKey', () => {
+  it('uses the event id for regular (non-addressable) events', () => {
+    const e = ev({ kind: 1, pubkey: 'aa', id: 'abc123' });
+    expect(zapTargetKey(e)).toBe('abc123');
+  });
+
+  it('uses the addressable coordinate for kind 30000-39999', () => {
+    const e = ev({
+      kind: 30818,
+      pubkey: 'deadbeef',
+      id: 'ignored',
+      tags: [['d', 'tilcayo']],
+    });
+    expect(zapTargetKey(e)).toBe('30818:deadbeef:tilcayo');
+  });
+
+  it('handles an addressable event with a missing d tag', () => {
+    const e = ev({ kind: 30818, pubkey: 'deadbeef', id: 'ignored' });
+    expect(zapTargetKey(e)).toBe('30818:deadbeef:');
+  });
+});
+
+describe('zapReceiptSats', () => {
+  it('reads the amount tag (millisats -> sats)', () => {
+    const receipt = ev({
+      kind: 9735,
+      pubkey: 'lnurl-server',
+      id: 'r1',
+      tags: [['amount', '21000']],
+    });
+    expect(zapReceiptSats(receipt)).toBe(21);
+  });
+
+  it('falls back to the bolt11 invoice amount', () => {
+    const receipt = ev({
+      kind: 9735,
+      pubkey: 'lnurl-server',
+      id: 'r2',
+      tags: [['bolt11', 'lnbc210n1pvjluezpp5abcdef']],
+    });
+    expect(zapReceiptSats(receipt)).toBe(21);
+  });
+
+  it('falls back to the zap request in the description tag', () => {
+    const receipt = ev({
+      kind: 9735,
+      pubkey: 'lnurl-server',
+      id: 'r3',
+      tags: [
+        ['description', JSON.stringify({ tags: [['amount', '1000000']] })],
+      ],
+    });
+    expect(zapReceiptSats(receipt)).toBe(1000);
+  });
+
+  it('returns 0 when no amount can be determined', () => {
+    const receipt = ev({ kind: 9735, pubkey: 'lnurl-server', id: 'r4' });
+    expect(zapReceiptSats(receipt)).toBe(0);
+  });
+
+  it('returns 0 for a malformed description instead of throwing', () => {
+    const receipt = ev({
+      kind: 9735,
+      pubkey: 'lnurl-server',
+      id: 'r5',
+      tags: [['description', '{not json']],
+    });
+    expect(zapReceiptSats(receipt)).toBe(0);
+  });
+});

src/lib/newsletterIssues.test.ts

@@ -0,0 +1,36 @@
+import { describe, it, expect } from 'vitest';
+import { NEWSLETTER_ISSUES } from './newsletterIssues';
+
+describe('NEWSLETTER_ISSUES data', () => {
+  it('has at least one issue', () => {
+    expect(NEWSLETTER_ISSUES.length).toBeGreaterThan(0);
+  });
+
+  it('every issue satisfies the schema', () => {
+    for (const issue of NEWSLETTER_ISSUES) {
+      expect(typeof issue.number).toBe('number');
+      expect(issue.date).toMatch(/^\d{4}-\d{2}-\d{2}$/);
+      expect(issue.vibe.trim().length).toBeGreaterThan(0);
+      expect(issue.communityNote.trim().length).toBeGreaterThan(0);
+      expect(issue.nostrText.trim().length).toBeGreaterThan(0);
+      expect(Array.isArray(issue.updates)).toBe(true);
+      expect(issue.updates.length).toBeGreaterThan(0);
+      for (const u of issue.updates) {
+        expect(u.title.trim().length).toBeGreaterThan(0);
+        expect(u.body.trim().length).toBeGreaterThan(0);
+        expect(u.tag.trim().length).toBeGreaterThan(0);
+      }
+    }
+  });
+
+  it('is ordered newest-first (descending issue numbers)', () => {
+    for (let i = 1; i < NEWSLETTER_ISSUES.length; i++) {
+      expect(NEWSLETTER_ISSUES[i - 1].number).toBeGreaterThan(NEWSLETTER_ISSUES[i].number);
+    }
+  });
+
+  it('includes the d-tagged hashtags used to publish issues', () => {
+    const withNewsTag = NEWSLETTER_ISSUES.filter((i) => i.nostrText.includes('#skatespotsnews'));
+    expect(withNewsTag.length).toBeGreaterThan(0);
+  });
+});