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-rw-r--r--tests/manual/v4/instanceof.1.js9
1 files changed, 9 insertions, 0 deletions
diff --git a/tests/manual/v4/instanceof.1.js b/tests/manual/v4/instanceof.1.js
new file mode 100644
index 0000000000..d991574e66
--- /dev/null
+++ b/tests/manual/v4/instanceof.1.js
@@ -0,0 +1,9 @@
+
+function foo() {}
+foo.prototype = {}
+
+var f = new foo()
+print(foo.prototype)
+print(f.__proto__)
+print(foo.prototype == f.__proto__)
+print(f instanceof foo)