fix test issues

src/compiler/tests/pipe.test.ts

@@ -89,7 +89,7 @@ describe('pipe expressions', () => {
   test('pipe with prelude function (echo)', () => {
     expect(`
       get-msg = do: 'hello' end
-      get-msg | echo
+      get-msg | length
-    `).toEvaluateTo(null)
+    `).toEvaluateTo(5)
   })
 })

src/compiler/tests/ribbit.test.ts

@@ -83,7 +83,7 @@ end
 
   test('custom tags', () => {
     expect(`
-list = tag ul class=list
+list = tag ul class='list'
 ribbit:
   list:
     li border-bottom='1px solid black' one