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-rw-r--r--js/src/tests/non262/Array/includes-trailing-holes.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/includes-trailing-holes.js b/js/src/tests/non262/Array/includes-trailing-holes.js
new file mode 100644
index 0000000000..b783cc36d8
--- /dev/null
+++ b/js/src/tests/non262/Array/includes-trailing-holes.js
@@ -0,0 +1,16 @@
+// Array with trailing hole as explicit "magic elements hole".
+assertEq([,].includes(), true);
+assertEq([,].includes(undefined), true);
+assertEq([,].includes(undefined, 0), true);
+assertEq([,].includes(null), false);
+assertEq([,].includes(null, 0), false);
+
+// Array with trailing hole with no explicit "magic elements hole".
+assertEq(Array(1).includes(), true);
+assertEq(Array(1).includes(undefined), true);
+assertEq(Array(1).includes(undefined, 0), true);
+assertEq(Array(1).includes(null), false);
+assertEq(Array(1).includes(null, 0), false);
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);