1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/has/trap-is-missing-target-is-proxy.js b/js/src/tests/test262/built-ins/Proxy/has/trap-is-missing-target-is-proxy.js
new file mode 100644
index 0000000000..edee560115
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/has/trap-is-missing-target-is-proxy.js
@@ -0,0 +1,35 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-hasproperty-p
+description: >
+  If "has" trap is null or undefined, [[HasProperty]] call is properly
+  forwarded to [[ProxyTarget]] (which is also a Proxy object).
+info: |
+  [[HasProperty]] ( P )
+
+  [...]
+  5. Let target be O.[[ProxyTarget]].
+  6. Let trap be ? GetMethod(handler, "has").
+  7. If trap is undefined, then
+    a. Return ? target.[[HasProperty]](P).
+features: [Proxy, Symbol.replace, Reflect]
+---*/
+
+var regExp = /(?:)/m;
+var regExpTarget = new Proxy(regExp, {});
+var regExpProxy = new Proxy(regExpTarget, {});
+
+assert(Reflect.has(regExpProxy, "ignoreCase"));
+assert(Symbol.replace in regExpProxy);
+assert("lastIndex" in Object.create(regExpProxy));
+
+
+var functionTarget = new Proxy(function() {}, {});
+var functionProxy = new Proxy(functionTarget, {});
+
+assert("name" in functionProxy);
+assert("length" in Object.create(functionProxy));
+
+reportCompare(0, 0);