diff --git a/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-arrow-function.js b/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-arrow-function.js
new file mode 100644
index 0000000000..283c3a50d9
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-arrow-function.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical And Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression &&= AssignmentExpression
+
+    5. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value &&= () => {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-class-expression.js b/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-class-expression.js
new file mode 100644
index 0000000000..af96ddaaa9
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-class-expression.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical And Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression &&= AssignmentExpression
+
+    5. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value &&= class {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-function.js b/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-function.js
new file mode 100644
index 0000000000..06948e3eef
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-and-assignment-operator-namedevaluation-function.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical And Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression &&= AssignmentExpression
+
+    5. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value &&= function() {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-arrow-function.js b/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-arrow-function.js
new file mode 100644
index 0000000000..9b9ec4cf15
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-arrow-function.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical Nullish Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression ??= AssignmentExpression
+
+    4. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value ??= () => {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-class-expression.js b/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-class-expression.js
new file mode 100644
index 0000000000..f72090a5c3
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-class-expression.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical Nullish Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression ??= AssignmentExpression
+
+    4. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value ??= class {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-function.js b/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-function.js
new file mode 100644
index 0000000000..456ae35848
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-nullish-assignment-operator-namedevaluation-function.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical Nullish Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression ??= AssignmentExpression
+
+    4. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value ??= function() {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-arrow-function.js b/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-arrow-function.js
new file mode 100644
index 0000000000..fcef139702
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-arrow-function.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical Or Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression ||= AssignmentExpression
+
+    5. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value ||= () => {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-class-expression.js b/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-class-expression.js
new file mode 100644
index 0000000000..aad32cf295
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-class-expression.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical Or Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression ||= AssignmentExpression
+
+    5. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value ||= class {};
+
+assert.sameValue(value.name, "value", "value");
diff --git a/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-function.js b/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-function.js
new file mode 100644
index 0000000000..ce20ac458e
--- /dev/null
+++ b/test/language/expressions/logical-assignment/lgcl-or-assignment-operator-namedevaluation-function.js
@@ -0,0 +1,20 @@
+// Copyright (c) 2020 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-runtime-semantics-evaluation
+description: NamedEvaluation of Logical Or Assignment
+info: |
+    AssignmentExpression:
+      LeftHandSideExpression ||= AssignmentExpression
+
+    5. If IsAnonymousFunctionDefinition(AssignmentExpression) and IsIdentifierRef of LeftHandSideExpression are both true, then
+      a. Let rval be NamedEvaluation of AssignmentExpression with argument GetReferencedName(lref).
+features: [logical-assignment-operators]
+
+---*/
+
+var value = 1;
+value ||= function() {};
+
+assert.sameValue(value.name, "value", "value");