1 files changed, 9 insertions, 0 deletions
diff --git a/test/libsolidity/syntaxTests/indexing/fixedbytes_negative_index.sol b/test/libsolidity/syntaxTests/indexing/fixedbytes_negative_index.sol
new file mode 100644
index 00000000..12399317
--- /dev/null
+++ b/test/libsolidity/syntaxTests/indexing/fixedbytes_negative_index.sol
@@ -0,0 +1,9 @@
+contract C {
+  function f() public {
+    bytes32 b;
+    b[-1];
+  }
+}
+// ----
+// TypeError: (58-60): Type int_const -1 is not implicitly convertible to expected type uint256.
+// TypeError: (56-61): Index expression cannot be represented as an unsigned integer.