diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-bigint.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-bigint.js
new file mode 100644
index 0000000000..1692a9cec4
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-bigint.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (bigint)
+info: |
+  Object.defineProperty ( O, P, Attributes )
+
+  ...
+  Let desc be ? ToPropertyDescriptor(Attributes).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+features: [BigInt]
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', 0n);
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-false.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-false.js
new file mode 100644
index 0000000000..0de5f153e2
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-false.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (false)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', false);
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-null.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-null.js
new file mode 100644
index 0000000000..63f6340012
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-null.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (null)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', null);
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-number.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-number.js
new file mode 100644
index 0000000000..3595a899a0
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-number.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (number)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', 1);
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-string.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-string.js
new file mode 100644
index 0000000000..2d5a109beb
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-string.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (string)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', '');
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-symbol.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-symbol.js
new file mode 100644
index 0000000000..b2489e9b7a
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-symbol.js
@@ -0,0 +1,27 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (symbol)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+features: [Symbol]
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', Symbol());
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-true.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-true.js
new file mode 100644
index 0000000000..f34dba0883
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-true.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (true)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', true);
+});
diff --git a/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-undefined.js b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-undefined.js
new file mode 100644
index 0000000000..ca579d4655
--- /dev/null
+++ b/test/built-ins/Object/defineProperty/property-description-must-be-an-object-not-undefined.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (undefined)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', undefined);
+});