1 files changed, 17 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/syntax/testdata/issue23385.go b/src/cmd/compile/internal/syntax/testdata/issue23385.go
new file mode 100644
index 0000000..2459a73
--- /dev/null
+++ b/src/cmd/compile/internal/syntax/testdata/issue23385.go
@@ -0,0 +1,17 @@
+// Copyright 2018 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.
+
+// Check error message for use of = instead of == .
+
+package p
+
+func _() {
+	if true || 0 /* ERROR cannot use assignment .* as value */ = 1 {
+	}
+}
+
+func _(a, b string) {
+	if a == "a" && b /* ERROR cannot use assignment .* as value */ = "b" {
+	}
+}