1 files changed, 17 insertions, 0 deletions
diff --git a/test/fixedbugs/issue30722.go b/test/fixedbugs/issue30722.go
new file mode 100644
index 0000000..fe04c8f
--- /dev/null
+++ b/test/fixedbugs/issue30722.go
@@ -0,0 +1,17 @@
+// errorcheck
+
+// Copyright 2019 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Verify that we only get one error per invalid integer literal.
+
+package p
+
+const (
+	_ = 1_       // ERROR "'_' must separate successive digits"
+	_ = 0b       // ERROR "binary literal has no digits|invalid numeric literal"
+	_ = 0o       // ERROR "octal literal has no digits|invalid numeric literal"
+	_ = 0x       // ERROR "hexadecimal literal has no digits|invalid numeric literal"
+	_ = 0xde__ad // ERROR "'_' must separate successive digits"
+)