diff --git a/core/modules/datetime_range/src/Functional/EntityResource/EntityTest/EntityTestAlldayTest.php b/core/modules/datetime_range/tests/src/Functional/EntityResource/EntityTest/EntityTestAlldayTest.php
similarity index 100%
rename from core/modules/datetime_range/src/Functional/EntityResource/EntityTest/EntityTestAlldayTest.php
rename to core/modules/datetime_range/tests/src/Functional/EntityResource/EntityTest/EntityTestAlldayTest.php
diff --git a/core/modules/datetime_range/src/Functional/EntityResource/EntityTest/EntityTestDateonlyTest.php b/core/modules/datetime_range/tests/src/Functional/EntityResource/EntityTest/EntityTestDateonlyTest.php
similarity index 100%
rename from core/modules/datetime_range/src/Functional/EntityResource/EntityTest/EntityTestDateonlyTest.php
rename to core/modules/datetime_range/tests/src/Functional/EntityResource/EntityTest/EntityTestDateonlyTest.php
diff --git a/core/modules/datetime_range/src/Functional/EntityResource/EntityTest/EntityTestDatetimeTest.php b/core/modules/datetime_range/tests/src/Functional/EntityResource/EntityTest/EntityTestDatetimeTest.php
similarity index 100%
rename from core/modules/datetime_range/src/Functional/EntityResource/EntityTest/EntityTestDatetimeTest.php
rename to core/modules/datetime_range/tests/src/Functional/EntityResource/EntityTest/EntityTestDatetimeTest.php