diff --git a/tests/tokenizer/tags.mwtest b/tests/tokenizer/tags.mwtest
index 37ee50a..b534fd2 100644
--- a/tests/tokenizer/tags.mwtest
+++ b/tests/tokenizer/tags.mwtest
@@ -418,6 +418,13 @@ output: [TagOpenOpen(showtag=True), Text(text="foo"), TagAttrStart(pad_first=" "
---
+name: backslash_triple
+label: three adjacent backslashes, which do *not* affect the quote
+input: "blah"
+output: [TagOpenOpen(showtag=True), Text(text="foo"), TagAttrStart(pad_first=" ", pad_before_eq="", pad_after_eq=""), Text(text="attribute"), TagAttrEquals(), TagAttrQuote(), Text(text="this is\\\\\\"), TagAttrStart(pad_first=" ", pad_before_eq="", pad_after_eq=""), Text(text="quoted\""), TagCloseOpen(padding=""), Text(text="blah"), TagOpenClose(), Text(text="foo"), TagCloseClose()]
+
+---
+
name: backslash_unaffecting
label: backslashes near quotes, but not immediately adjacent, thus having no effect
input: "blah"