feat(flash board): add SWF posting support (#1145)

src/lib/__tests__/flash-tags.test.ts

@@ -0,0 +1,45 @@
+import { describe, expect, it } from 'vitest';
+import { FLASH_TAG_OPTIONS, getFlashTagOption, getFlashTagOptionFromComment, getFlashTagPublishOptionsForDirectoryCode, isFlashDirectory } from '../flash-tags';
+
+describe('flash-tags', () => {
+  it('defines the classic /f/ tag options with text-only post flairs', () => {
+    expect(FLASH_TAG_OPTIONS.map((option) => option.label)).toEqual(['Hentai', 'Porn', 'Japanese', 'Anime', 'Game', 'Loop', 'Other']);
+    expect(FLASH_TAG_OPTIONS.map((option) => option.flair)).toEqual([
+      { text: 'flash:hentai' },
+      { text: 'flash:porn' },
+      { text: 'flash:japanese' },
+      { text: 'flash:anime' },
+      { text: 'flash:game' },
+      { text: 'flash:loop' },
+      { text: 'flash:other' },
+    ]);
+  });
+
+  it('publishes a flash tag only on /f/', () => {
+    expect(getFlashTagPublishOptionsForDirectoryCode('f', 'loop')).toEqual({
+      flairs: [{ text: 'flash:loop' }],
+    });
+    expect(getFlashTagPublishOptionsForDirectoryCode('b', 'loop')).toEqual({
+      flairs: undefined,
+    });
+  });
+
+  it('does not publish a flair for missing or invalid selections', () => {
+    expect(getFlashTagOption(undefined)).toBeUndefined();
+    expect(getFlashTagOption('bad')).toBeUndefined();
+    expect(getFlashTagPublishOptionsForDirectoryCode('f', undefined)).toEqual({ flairs: undefined });
+    expect(getFlashTagPublishOptionsForDirectoryCode('f', 'bad')).toEqual({ flairs: undefined });
+  });
+
+  it('detects flash directories from code or title', () => {
+    expect(isFlashDirectory({ directoryCode: 'f' })).toBe(true);
+    expect(isFlashDirectory({ title: '/f/ - Flash' })).toBe(true);
+    expect(isFlashDirectory({ directoryCode: 'b' })).toBe(false);
+  });
+
+  it('extracts display tags from comment flairs', () => {
+    expect(getFlashTagOptionFromComment({ flairs: [{ text: 'flash:loop' }] })?.shortLabel).toBe('L');
+    expect(getFlashTagOptionFromComment({ flairs: [{ text: 'flag:country:US' }] })).toBeUndefined();
+    expect(getFlashTagOptionFromComment({ flairs: [{ text: 'flash:bad' }] })).toBeUndefined();
+  });
+});