diff --git a/test/built-ins/TypedArrayConstructors/internals/DefineOwnProperty/BigInt/key-is-numericindex-accessor-desc-throws.js b/test/built-ins/TypedArrayConstructors/internals/DefineOwnProperty/BigInt/key-is-numericindex-accessor-desc-throws.js
new file mode 100644
index 0000000000..bb275cdd81
--- /dev/null
+++ b/test/built-ins/TypedArrayConstructors/internals/DefineOwnProperty/BigInt/key-is-numericindex-accessor-desc-throws.js
@@ -0,0 +1,44 @@
+// Copyright (C) 2021 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-integer-indexed-exotic-objects-defineownproperty-p-desc
+description: >
+  Throws TypeError for valid index & accessor descriptor.
+info: |
+  [[DefineOwnProperty]] ( P, Desc )
+
+  [...]
+  3. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      [...]
+      iv. If IsAccessorDescriptor(Desc) is true, return false.
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var sample = new TA([0n]);
+
+  assert.throws(TypeError, function() {
+    Object.defineProperty(sample, "0", {
+      get: function() { return 42n; },
+    });
+  }, "get accessor");
+  assert.sameValue(sample[0], 0n, "get accessor - side effect check");
+
+  assert.throws(TypeError, function() {
+    Object.defineProperty(sample, "0", {
+      set: function(_v) {},
+    });
+  }, "set accessor");
+  assert.sameValue(sample[0], 0n, "set accessor - side effect check");
+
+  assert.throws(TypeError, function() {
+    Object.defineProperty(sample, "0", {
+      get: function() { return 42n; },
+      set: function(_v) {},
+    });
+  }, "get and set accessors");
+  assert.sameValue(sample[0], 0n, "get and set accessors - side effect check");
+});
diff --git a/test/built-ins/TypedArrayConstructors/internals/DefineOwnProperty/key-is-numericindex-accessor-desc-throws.js b/test/built-ins/TypedArrayConstructors/internals/DefineOwnProperty/key-is-numericindex-accessor-desc-throws.js
new file mode 100644
index 0000000000..3f0e4573ae
--- /dev/null
+++ b/test/built-ins/TypedArrayConstructors/internals/DefineOwnProperty/key-is-numericindex-accessor-desc-throws.js
@@ -0,0 +1,44 @@
+// Copyright (C) 2021 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-integer-indexed-exotic-objects-defineownproperty-p-desc
+description: >
+  Throws TypeError for valid index & accessor descriptor.
+info: |
+  [[DefineOwnProperty]] ( P, Desc )
+
+  [...]
+  3. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      [...]
+      iv. If IsAccessorDescriptor(Desc) is true, return false.
+includes: [testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA([0]);
+
+  assert.throws(TypeError, function() {
+    Object.defineProperty(sample, "0", {
+      get: function() { return 42; },
+    });
+  }, "get accessor");
+  assert.sameValue(sample[0], 0, "get accessor - side effect check");
+
+  assert.throws(TypeError, function() {
+    Object.defineProperty(sample, "0", {
+      set: function(_v) {},
+    });
+  }, "set accessor");
+  assert.sameValue(sample[0], 0, "set accessor - side effect check");
+
+  assert.throws(TypeError, function() {
+    Object.defineProperty(sample, "0", {
+      get: function() { return 42; },
+      set: function(_v) {},
+    });
+  }, "get and set accessors");
+  assert.sameValue(sample[0], 0, "get and set accessors - side effect check");
+});