1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/findLastIndex/predicate-call-parameters.js b/js/src/tests/test262/built-ins/Array/prototype/findLastIndex/predicate-call-parameters.js
new file mode 100644
index 0000000000..02bd2f9182
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/findLastIndex/predicate-call-parameters.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2021 Microsoft. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.prototype.findlastindex
+description: >
+  Predicate called as F.call( thisArg, kValue, k, O ) for each array entry.
+info: |
+  Array.prototype.findLastIndex ( predicate[ , thisArg ] )
+
+  ...
+  4. Let k be len - 1.
+  5. Repeat, while k ≥ 0,
+    ...
+    c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)).
+  ...
+features: [array-find-from-last]
+---*/
+
+var arr = ['Mike', 'Rick', 'Leo'];
+
+var results = [];
+
+arr.findLastIndex(function() {
+  results.push(arguments);
+});
+
+assert.sameValue(results.length, 3);
+
+var result = results[0];
+assert.sameValue(result[0], 'Leo');
+assert.sameValue(result[1], 2);
+assert.sameValue(result[2], arr);
+assert.sameValue(result.length, 3);
+
+result = results[1];
+assert.sameValue(result[0], 'Rick');
+assert.sameValue(result[1], 1);
+assert.sameValue(result[2], arr);
+assert.sameValue(result.length, 3);
+
+result = results[2];
+assert.sameValue(result[0], 'Mike');
+assert.sameValue(result[1], 0);
+assert.sameValue(result[2], arr);
+assert.sameValue(result.length, 3);
+
+reportCompare(0, 0);