diff --git a/tests/requests/invalid/chunked_12.http b/tests/requests/invalid/chunked_12.http
new file mode 100644
index 00000000..7ef164eb
--- /dev/null
+++ b/tests/requests/invalid/chunked_12.http
@@ -0,0 +1,7 @@
+POST /chunked_no_chunk_size_but_ext HTTP/1.1\r\n
+Transfer-Encoding: chunked\r\n
+\r\n
+ ;foo=bar\r\n
+hello\r\n
+0\r\n
+\r\n
diff --git a/tests/requests/invalid/chunked_12.py b/tests/requests/invalid/chunked_12.py
new file mode 100644
index 00000000..0571e118
--- /dev/null
+++ b/tests/requests/invalid/chunked_12.py
@@ -0,0 +1,2 @@
+from gunicorn.http.errors import InvalidChunkSize
+request = InvalidChunkSize
diff --git a/tests/requests/invalid/chunked_13.http b/tests/requests/invalid/chunked_13.http
new file mode 100644
index 00000000..6c26ebb8
--- /dev/null
+++ b/tests/requests/invalid/chunked_13.http
@@ -0,0 +1,7 @@
+POST /chunked_no_chunk_size HTTP/1.1\r\n
+Transfer-Encoding: chunked\r\n
+\r\n
+\r\n
+hello\r\n
+0\r\n
+\r\n
diff --git a/tests/requests/invalid/chunked_13.py b/tests/requests/invalid/chunked_13.py
new file mode 100644
index 00000000..0571e118
--- /dev/null
+++ b/tests/requests/invalid/chunked_13.py
@@ -0,0 +1,2 @@
+from gunicorn.http.errors import InvalidChunkSize
+request = InvalidChunkSize