diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-bigint.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-bigint.js
new file mode 100644
index 0000000000..168a093b47
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-bigint.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+description: >
+  Property description must be an object (bigint)
+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: [BigInt]
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperties({}, {
+    a: 0n
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-false.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-false.js
new file mode 100644
index 0000000000..a522824ab4
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-false.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: false
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-null.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-null.js
new file mode 100644
index 0000000000..38bae861a6
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-null.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: null
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-number.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-number.js
new file mode 100644
index 0000000000..a3c6f40aed
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-number.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: 1
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-string.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-string.js
new file mode 100644
index 0000000000..e1f2b26e2a
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-string.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: ''
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-symbol.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-symbol.js
new file mode 100644
index 0000000000..2847f77a60
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-symbol.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: Symbol()
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-true.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-true.js
new file mode 100644
index 0000000000..babc75d0be
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-true.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: true
+  });
+});
diff --git a/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-undefined.js b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-undefined.js
new file mode 100644
index 0000000000..34335f880e
--- /dev/null
+++ b/test/built-ins/Object/defineProperties/property-description-must-be-an-object-not-undefined.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-objectdefineproperties
+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.defineProperties({}, {
+    a: undefined
+  });
+});