diff --git a/test/language/literals/boolean/false-with-unicode.js b/test/language/literals/boolean/false-with-unicode.js
new file mode 100644
index 0000000000..e225a43447
--- /dev/null
+++ b/test/language/literals/boolean/false-with-unicode.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2023 Veera Sivarajan. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-keywords-and-reserved-words
+description: >
+  ReservedWord (false) cannot contain UnicodeEscapeSequence.
+info: | 
+  Note 1
+
+  Per 5.1.5, keywords in the grammar match literal sequences of specific SourceCharacter elements.
+  A code point in a keyword cannot be expressed by a \ UnicodeEscapeSequence.
+negative: 
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+f\u{61}lse;
diff --git a/test/language/literals/boolean/true-with-unicode.js b/test/language/literals/boolean/true-with-unicode.js
new file mode 100644
index 0000000000..7f78a89505
--- /dev/null
+++ b/test/language/literals/boolean/true-with-unicode.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2023 Veera Sivarajan. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-keywords-and-reserved-words
+description: >
+  ReservedWord (true) cannot contain UnicodeEscapeSequence.
+info: | 
+  Note 1
+
+  Per 5.1.5, keywords in the grammar match literal sequences of specific SourceCharacter elements.
+  A code point in a keyword cannot be expressed by a \ UnicodeEscapeSequence.
+negative: 
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+tru\u{65};
diff --git a/test/language/literals/null/null-with-unicode.js b/test/language/literals/null/null-with-unicode.js
new file mode 100644
index 0000000000..11375dbcb3
--- /dev/null
+++ b/test/language/literals/null/null-with-unicode.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2023 Veera Sivarajan. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-keywords-and-reserved-words
+description: >
+  ReservedWord (null) cannot contain UnicodeEscapeSequence.
+info: | 
+  Note 1
+
+  Per 5.1.5, keywords in the grammar match literal sequences of specific SourceCharacter elements.
+  A code point in a keyword cannot be expressed by a \ UnicodeEscapeSequence.
+negative: 
+  phase: parse
+  type: SyntaxError
+---*/
+
+$DONOTEVALUATE();
+
+n\u{75}ll;