test: add unit tests

packages/shared/tests/inferRoutePath.spec.ts

@@ -0,0 +1,62 @@
+import { describe, expect, it } from 'vitest'
+import { inferRoutePath } from '../src/index.js'
+
+const testCases = [
+  // absolute index
+  ['/', '/'],
+  ['/README.md', '/'],
+  ['/readme.md', '/'],
+  ['/index.md', '/'],
+  ['/index.html', '/'],
+  ['/index', '/'],
+  ['/foo/', '/foo/'],
+  ['/foo/README.md', '/foo/'],
+  ['/foo/readme.md', '/foo/'],
+  ['/foo/index.md', '/foo/'],
+  ['/foo/index.html', '/foo/'],
+  ['/foo/index', '/foo/'],
+  ['README.md', 'index.html'],
+  ['readme.md', 'index.html'],
+  ['index.md', 'index.html'],
+  ['index.html', 'index.html'],
+  ['index', 'index.html'],
+
+  // absolute non-index
+  ['/foo', '/foo.html'],
+  ['/foo.md', '/foo.html'],
+  ['/foo.html', '/foo.html'],
+  ['/foo/bar', '/foo/bar.html'],
+  ['/foo/bar.md', '/foo/bar.html'],
+  ['/foo/bar.html', '/foo/bar.html'],
+
+  // relative index without current
+  ['foo/', 'foo/'],
+  ['foo/README.md', 'foo/'],
+  ['foo/readme.md', 'foo/'],
+  ['foo/index.md', 'foo/'],
+  ['foo/index.html', 'foo/'],
+  ['foo/index', 'foo/'],
+
+  // relative non index without current
+  ['foo', 'foo.html'],
+  ['foo.md', 'foo.html'],
+  ['foo.html', 'foo.html'],
+  ['foo/bar', 'foo/bar.html'],
+  ['foo/bar.md', 'foo/bar.html'],
+  ['foo/bar.html', 'foo/bar.html'],
+
+  // unexpected corner cases
+  ['', ''],
+  ['.md', '.html'],
+  ['foo/.md', 'foo/.html'],
+  ['/.md', '/.html'],
+  ['/foo/.md', '/foo/.html'],
+]
+
+describe('should normalize clean paths correctly', () => {
+  testCases.forEach(([path, expected]) =>
+    it(`"${path}" -> "${expected}"`, () => {
+      expect(inferRoutePath(path)).toBe(expected)
+    }),
+  )
+})