diff --git a/R/items-funs.R b/R/items-funs.R
index acba1efc..749b5b6b 100644
--- a/R/items-funs.R
+++ b/R/items-funs.R
@@ -355,8 +355,9 @@ items_next.STACItemCollection <- function(items, ...) {
   matched <- items_matched(items)
 
   q <- doc_query(items)
-  if (is.null(q))
+  if (is.null(q)) {
     .error("Cannot get next link URL", class = "next_error")
+  }
 
   # get url of the next page
   next_url <- Filter(function(x) x$rel == "next", items$links)
@@ -420,7 +421,6 @@ items_next.STACItemCollection <- function(items, ...) {
 
     content <- post_request(next_stac, ..., encode = q$encode)
   } else {
-
     .error("Invalid HTTP method.")
   }
 
@@ -430,7 +430,6 @@ items_next.STACItemCollection <- function(items, ...) {
   # check pagination length
   if (!is.null(q$params[["limit"]]) &&
       items_length(content) > as.numeric(q$params[["limit"]])) {
-
     .error("STAC invalid retrieved page length.")
   }
 
@@ -438,7 +437,6 @@ items_next.STACItemCollection <- function(items, ...) {
   if (!is.null(matched) && !is.null(q$params[["limit"]]) &&
       (items_length(content) != as.numeric(q$params[["limit"]])) &&
       (items_length(content) + items_length(items) != matched)) {
-
     .error("STAC pagination error.")
   }
 
diff --git a/tests/testthat/test-signatures.R b/tests/testthat/test-signatures.R
index 902fa250..58f46d77 100644
--- a/tests/testthat/test-signatures.R
+++ b/tests/testthat/test-signatures.R
@@ -94,6 +94,14 @@ testthat::test_that("signature functions", {
       class = c("STACItemCollection", "RSTACDocument")
     )
 
+    # provided wrong url
+    testthat::expect_error(
+      object = suppressWarnings(
+        items_sign(stac_items,
+                   sign_fn = sign_planetary_computer(token_url = "test"))
+      )
+    )
+
     # return the same object after signature?
     testthat::expect_s3_class(
       object = suppressWarnings(
@@ -123,12 +131,4 @@ testthat::test_that("signature functions", {
       object = href_item,
       regexp = "se"
     )
-
-    # provided wrong url
-    testthat::expect_error(
-      object = suppressWarnings(
-        items_sign(stac_items,
-                   sign_fn = sign_planetary_computer(token_url = "test"))
-      )
-    )
 })