diff --git a/.editorconfig b/.editorconfig
index 1cbc8fe30..58db51158 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -14,3 +14,9 @@ insert_final_newline = false
 
 [website/blog/*.md]
 trim_trailing_whitespace = false
+
+[tests/{**/__snapshots__/*, tests/format/**/*}]
+trim_trailing_whitespace = false
+
+[tests/format/**/jsfmt.spec.js]
+trim_trailing_whitespace = true