add tests

packages/astro/test/fixtures/redirects/src/pages/more/[dynamic].astro

@@ -0,0 +1,8 @@
+---
+export function getStaticPaths() {
+  return [{ params: { dynamic:'hello' } }]
+}
+---
+{JSON.stringify(Astro.params)}
+
+<a href="/">home</a>

packages/astro/test/fixtures/redirects/src/pages/more/[dynamic]/[route].astro

@@ -0,0 +1,8 @@
+---
+export function getStaticPaths() {
+  return [{ params: { dynamic:'hello', route:'world' } }]
+}
+---
+{JSON.stringify(Astro.params)}
+
+<a href="/">home</a>

packages/astro/test/fixtures/redirects/src/pages/more/new/[...spread].astro

@@ -0,0 +1,8 @@
+---
+export function getStaticPaths() {
+  return [{ params: {spread:'welcome/world'} }]
+}
+---
+{JSON.stringify(Astro.params)}
+
+<a href="/">home</a>

packages/astro/test/redirects.test.js

@@ -78,6 +78,9 @@ describe('Astro.redirect', () => {
 							status: 302,
 							destination: '/test',
 						},
+						'/more/old/[dynamic]': '/more/[dynamic]',
+						'/more/old/[dynamic]/[route]': '/more/[dynamic]/[route]',
+						'/more/old/[...spread]': '/more/new/[...spread]',
 					},
 				});
 				await fixture.build();
@@ -149,6 +152,12 @@ describe('Astro.redirect', () => {
 				expect(html).to.include('http-equiv="refresh');
 				expect(html).to.include('url=/test');
 			});
+
+			it('falls back to spread rule when dynamic rules should not match', async () => {
+				const html = await fixture.readFile('/more/old/welcome/world/index.html');
+				expect(html).to.include('http-equiv="refresh');
+				expect(html).to.include('url=/more/new/welcome/world');
+			});
 		});
 
 		describe('dev', () => {
@@ -161,6 +170,9 @@ describe('Astro.redirect', () => {
 					output: 'static',
 					redirects: {
 						'/one': '/',
+						'/more/old/[dynamic]': '/more/[dynamic]',
+						'/more/old/[dynamic]/[route]': '/more/[dynamic]/[route]',
+						'/more/old/[...spread]': '/more/new/[...spread]',
 					},
 				});
 				devServer = await fixture.startDevServer();
@@ -170,11 +182,27 @@ describe('Astro.redirect', () => {
 				await devServer.stop();
 			});
 
-			it('Returns 301', async () => {
+			it('performs simple redirects', async () => {
 				let res = await fixture.fetch('/one', {
 					redirect: 'manual',
 				});
 				expect(res.status).to.equal(301);
+				expect(res.headers.get('Location')).to.equal('/');
+			});
+
+			it('performs dynamic redirects', async () => {
+				const response = await fixture.fetch('/more/old/hello', { redirect: 'manual' });
+				expect(response.headers.get('Location')).to.equal('/more/hello');
+			});
+
+			it('performs dynamic redirects with multiple params', async () => {
+				const response = await fixture.fetch('/more/old/hello/world', { redirect: 'manual' });
+				expect(response.headers.get('Location')).to.equal('/more/hello/world');
+			});
+
+			it.skip('falls back to spread rule when dynamic rules should not match', async () => {
+				const response = await fixture.fetch('/more/old/welcome/world', { redirect: 'manual' });
+				expect(response.headers.get('Location')).to.equal('/more/new/welcome/world');
 			});
 		});
 	});