Add tests for 404 page

Signed-off-by: macdonst <[email protected]>

test/mock-errors/app/pages/404.mjs

@@ -0,0 +1,11 @@
+export default function FourOhFour ({ html, state }) {
+  const { error } = state.attrs
+
+  return html`
+      <main>
+        <h1>Custom 404</h1>
+        <h2>Sorry we can't find that.</h2>
+        <p>${error && error}</p>
+      </main>
+    `
+}

test/router-error-codes.mjs

@@ -0,0 +1,38 @@
+import test from 'tape'
+import url from 'url'
+import path from 'path'
+import router from '../src/http/any-catchall/router.mjs'
+
+const __dirname = path.dirname(url.fileURLToPath(import.meta.url))
+
+test('test default 404 page', async t => {
+  t.plan(2)
+  let req = {
+    rawPath: '/nope',
+    method: 'GET',
+    headers: {
+      'accept': 'text/html'
+    }
+  }
+  let base = path.join(__dirname, 'mock-folders', 'app')
+  let result = await router({ basePath: base }, req)
+  t.ok(result, 'got result')
+  t.equal(result.status, 404, 'Default 404 page')
+  console.log(result)
+})
+
+test('overridden 404 page', async t => {
+  t.plan(2)
+  let req = {
+    rawPath: '/nope',
+    method: 'GET',
+    headers: {
+      'accept': 'text/html'
+    }
+  }
+  let base = path.join(__dirname, 'mock-errors', 'app')
+  let result = await router({ basePath: base }, req)
+  t.ok(result.html.includes('Custom 404'), 'got result')
+  t.equal(result.status, 404, 'Overridden 404 page')
+  console.log(result)
+})