From 13c9acbb51ef307b7dce60882505f5e4f09df2b3 Mon Sep 17 00:00:00 2001
From: pdelfan <pdelfan@gmail.com>
Date: Tue, 28 Apr 2026 15:45:50 -0700
Subject: [PATCH] test: atproto utils

---
 .../__tests__/lib/utils/atproto.test.ts       | 111 ++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 src/webapp/__tests__/lib/utils/atproto.test.ts

diff --git a/src/webapp/__tests__/lib/utils/atproto.test.ts b/src/webapp/__tests__/lib/utils/atproto.test.ts
new file mode 100644
index 00000000..202aa5ae
--- /dev/null
+++ b/src/webapp/__tests__/lib/utils/atproto.test.ts
@@ -0,0 +1,111 @@
+import { describe, expect, it } from 'vitest';
+import { getRecordKey, getPostUriFromUrl } from '@/lib/utils/atproto';
+
+// ─────────────────────────────────────────────
+// getRecordKey
+// ─────────────────────────────────────────────
+describe('getRecordKey', () => {
+  it('should return the last path segment from an AT Protocol URI', () => {
+    // Arrange
+    const path = 'at://did:plc:xyz/app.bsky.feed.post/3k7xyzabc';
+
+    // Act
+    const result = getRecordKey(path);
+
+    // Assert
+    expect(result).toBe('3k7xyzabc');
+  });
+
+  it('should return the value when there is no slash separator', () => {
+    // Arrange
+    const path = 'record-key-only';
+
+    // Act
+    const result = getRecordKey(path);
+
+    // Assert
+    expect(result).toBe('record-key-only');
+  });
+
+  it('should return an empty string when the path is empty', () => {
+    // Arrange
+    const path = '';
+
+    // Act
+    const result = getRecordKey(path);
+
+    // Assert
+    expect(result).toBe('');
+  });
+
+  it('should return an empty string when the path ends with a slash', () => {
+    // Arrange — trailing slash means the last segment is an empty string
+    const path = 'at://did:plc:xyz/at.margin.bookmark/';
+
+    // Act
+    const result = getRecordKey(path);
+
+    // Assert
+    expect(result).toBe('');
+  });
+});
+
+// ─────────────────────────────────────────────
+// getPostUriFromUrl
+// ─────────────────────────────────────────────
+describe('getPostUriFromUrl', () => {
+  it('should convert a Bluesky profile URL to an AT Protocol URI', () => {
+    // Arrange
+    const url = 'https://bsky.app/profile/alice.bsky.social/post/3k7xyzabc';
+
+    // Act
+    const result = getPostUriFromUrl(url);
+
+    // Assert
+    expect(result).toBe('at://alice.bsky.social/app.bsky.feed.post/3k7xyzabc');
+  });
+
+  it('should work when the handle is a DID', () => {
+    // Arrange
+    const url = 'https://bsky.app/profile/did:plc:abc123/post/3k7xyzabc';
+
+    // Act
+    const result = getPostUriFromUrl(url);
+
+    // Assert
+    expect(result).toBe('at://did:plc:abc123/app.bsky.feed.post/3k7xyzabc');
+  });
+
+  it('should return the URL unchanged when it does not match the profile/post pattern', () => {
+    // Arrange
+    const url = 'https://bsky.app/profile/alice.bsky.social';
+
+    // Act
+    const result = getPostUriFromUrl(url);
+
+    // Assert
+    expect(result).toBe(url);
+  });
+
+  it('should return the input unchanged when it is an arbitrary string', () => {
+    // Arrange
+    const url = 'not-a-url-at-all';
+
+    // Act
+    const result = getPostUriFromUrl(url);
+
+    // Assert
+    expect(result).toBe(url);
+  });
+
+  it('should return the input unchanged when it is an empty string', () => {
+    // Arrange
+    const url = '';
+
+    // Act
+    const result = getPostUriFromUrl(url);
+
+    // Assert
+    expect(result).toBe(url);
+  });
+});
-- 
2.51.2