diff --git a/tests/testthat/test-measures.R b/tests/testthat/test-measures.R
index e741b4a..b7a9ae9 100644
--- a/tests/testthat/test-measures.R
+++ b/tests/testthat/test-measures.R
@@ -50,11 +50,13 @@ test_that("riem_measures outputs warning if no results", {
 test_that("riem_measures checks dates", {
   expect_snapshot_error(riem_measures(date_start = "somethingelse"))
 
-  expect_snapshot_error(riem_measures(date_end = "somethingelse"))
+  expect_snapshot_error(riem_measures(date_start = "2014-03-01",
+                                      date_end = "somethingelse"))
 
   expect_snapshot_error(riem_measures(date_start = "2015 31 01"))
 
-  expect_snapshot_error(riem_measures(date_end = "2015 31 01"))
+  expect_snapshot_error(riem_measures(date_start = "2014-03-01",
+                                      date_end = "2015 31 01"))
 
   expect_snapshot_error(
     riem_measures(