diff --git a/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-assignment-expr-not-optional.js b/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-assignment-expr-not-optional.js
new file mode 100644
index 0000000000..622142e849
--- /dev/null
+++ b/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-assignment-expr-not-optional.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dynamic-import/assignment-expr-not-optional.case
+// - src/dynamic-import/syntax/invalid/nested-async-function.template
+/*---
+description: It's a SyntaxError if AssignmentExpression is omitted (nested arrow syntax)
+esid: sec-import-call-runtime-semantics-evaluation
+features: [dynamic-import]
+flags: [generated, module]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ImportCall :
+        import( AssignmentExpression )
+
+    1. Let referencingScriptOrModule be ! GetActiveScriptOrModule().
+    2. Assert: referencingScriptOrModule is a Script Record or Module Record (i.e. is not null).
+    3. Let argRef be the result of evaluating AssignmentExpression.
+    4. Let specifier be ? GetValue(argRef).
+    5. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    6. Let specifierString be ToString(specifier).
+    7. IfAbruptRejectPromise(specifierString, promiseCapability).
+    8. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability).
+    9. Return promiseCapability.[[Promise]].
+
+
+    ImportCall :
+        import( AssignmentExpression[+In, ?Yield] )
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+async function f() {
+  import();
+}
+
+
+/* The params region intentionally empty */
diff --git a/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-await-assignment-expr-not-optional.js b/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-await-assignment-expr-not-optional.js
new file mode 100644
index 0000000000..f36a527edc
--- /dev/null
+++ b/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-await-assignment-expr-not-optional.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dynamic-import/assignment-expr-not-optional.case
+// - src/dynamic-import/syntax/invalid/nested-async-function-await.template
+/*---
+description: It's a SyntaxError if AssignmentExpression is omitted (nested arrow syntax)
+esid: sec-import-call-runtime-semantics-evaluation
+features: [dynamic-import]
+flags: [generated, module]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ImportCall :
+        import( AssignmentExpression )
+
+    1. Let referencingScriptOrModule be ! GetActiveScriptOrModule().
+    2. Assert: referencingScriptOrModule is a Script Record or Module Record (i.e. is not null).
+    3. Let argRef be the result of evaluating AssignmentExpression.
+    4. Let specifier be ? GetValue(argRef).
+    5. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    6. Let specifierString be ToString(specifier).
+    7. IfAbruptRejectPromise(specifierString, promiseCapability).
+    8. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability).
+    9. Return promiseCapability.[[Promise]].
+
+
+    ImportCall :
+        import( AssignmentExpression[+In, ?Yield] )
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+async function f() {
+  await import();
+}
+
+/* The params region intentionally empty */
diff --git a/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-return-await-assignment-expr-not-optional.js b/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-return-await-assignment-expr-not-optional.js
new file mode 100644
index 0000000000..e4bc337d8c
--- /dev/null
+++ b/test/language/module-code/dynamic-import/syntax/invalid/nested-async-function-return-await-assignment-expr-not-optional.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dynamic-import/assignment-expr-not-optional.case
+// - src/dynamic-import/syntax/invalid/nested-async-function-return-await.template
+/*---
+description: It's a SyntaxError if AssignmentExpression is omitted (nested arrow syntax)
+esid: sec-import-call-runtime-semantics-evaluation
+features: [dynamic-import]
+flags: [generated, module]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    ImportCall :
+        import( AssignmentExpression )
+
+    1. Let referencingScriptOrModule be ! GetActiveScriptOrModule().
+    2. Assert: referencingScriptOrModule is a Script Record or Module Record (i.e. is not null).
+    3. Let argRef be the result of evaluating AssignmentExpression.
+    4. Let specifier be ? GetValue(argRef).
+    5. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    6. Let specifierString be ToString(specifier).
+    7. IfAbruptRejectPromise(specifierString, promiseCapability).
+    8. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability).
+    9. Return promiseCapability.[[Promise]].
+
+
+    ImportCall :
+        import( AssignmentExpression[+In, ?Yield] )
+---*/
+
+throw "Test262: This statement should not be evaluated.";
+
+async function f() {
+  return await import();
+}
+
+
+/* The params region intentionally empty */
diff --git a/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-await-empty-str-is-valid-assign-expr.js b/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-await-empty-str-is-valid-assign-expr.js
new file mode 100644
index 0000000000..b4a5f064a1
--- /dev/null
+++ b/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-await-empty-str-is-valid-assign-expr.js
@@ -0,0 +1,27 @@
+// This file was procedurally generated from the following sources:
+// - src/dynamic-import/empty-str-is-valid-assign-expr.case
+// - src/dynamic-import/syntax/valid/nested-async-function-await.template
+/*---
+description: Calling import('') (nested arrow syntax)
+esid: sec-import-call-runtime-semantics-evaluation
+features: [dynamic-import]
+flags: [generated]
+info: |
+    ImportCall :
+        import( AssignmentExpression )
+
+    1. Let referencingScriptOrModule be ! GetActiveScriptOrModule().
+    2. Assert: referencingScriptOrModule is a Script Record or Module Record (i.e. is not null).
+    3. Let argRef be the result of evaluating AssignmentExpression.
+    4. Let specifier be ? GetValue(argRef).
+    5. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    6. Let specifierString be ToString(specifier).
+    7. IfAbruptRejectPromise(specifierString, promiseCapability).
+    8. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability).
+    9. Return promiseCapability.[[Promise]].
+
+---*/
+
+async function f() {
+  await import('');
+}
diff --git a/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-empty-str-is-valid-assign-expr.js b/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-empty-str-is-valid-assign-expr.js
new file mode 100644
index 0000000000..e78fe924e2
--- /dev/null
+++ b/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-empty-str-is-valid-assign-expr.js
@@ -0,0 +1,28 @@
+// This file was procedurally generated from the following sources:
+// - src/dynamic-import/empty-str-is-valid-assign-expr.case
+// - src/dynamic-import/syntax/valid/nested-async-function.template
+/*---
+description: Calling import('') (nested arrow syntax)
+esid: sec-import-call-runtime-semantics-evaluation
+features: [dynamic-import]
+flags: [generated]
+info: |
+    ImportCall :
+        import( AssignmentExpression )
+
+    1. Let referencingScriptOrModule be ! GetActiveScriptOrModule().
+    2. Assert: referencingScriptOrModule is a Script Record or Module Record (i.e. is not null).
+    3. Let argRef be the result of evaluating AssignmentExpression.
+    4. Let specifier be ? GetValue(argRef).
+    5. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    6. Let specifierString be ToString(specifier).
+    7. IfAbruptRejectPromise(specifierString, promiseCapability).
+    8. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability).
+    9. Return promiseCapability.[[Promise]].
+
+---*/
+
+async function f() {
+  import('');
+}
+
diff --git a/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-return-await-empty-str-is-valid-assign-expr.js b/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-return-await-empty-str-is-valid-assign-expr.js
new file mode 100644
index 0000000000..cefd94df23
--- /dev/null
+++ b/test/language/module-code/dynamic-import/syntax/valid/nested-async-function-return-await-empty-str-is-valid-assign-expr.js
@@ -0,0 +1,28 @@
+// This file was procedurally generated from the following sources:
+// - src/dynamic-import/empty-str-is-valid-assign-expr.case
+// - src/dynamic-import/syntax/valid/nested-async-function-return-await.template
+/*---
+description: Calling import('') (nested arrow syntax)
+esid: sec-import-call-runtime-semantics-evaluation
+features: [dynamic-import]
+flags: [generated]
+info: |
+    ImportCall :
+        import( AssignmentExpression )
+
+    1. Let referencingScriptOrModule be ! GetActiveScriptOrModule().
+    2. Assert: referencingScriptOrModule is a Script Record or Module Record (i.e. is not null).
+    3. Let argRef be the result of evaluating AssignmentExpression.
+    4. Let specifier be ? GetValue(argRef).
+    5. Let promiseCapability be ! NewPromiseCapability(%Promise%).
+    6. Let specifierString be ToString(specifier).
+    7. IfAbruptRejectPromise(specifierString, promiseCapability).
+    8. Perform ! HostImportModuleDynamically(referencingScriptOrModule, specifierString, promiseCapability).
+    9. Return promiseCapability.[[Promise]].
+
+---*/
+
+async function f() {
+  return await import('');
+}
+