1 files changed, 98 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/generators/unscopables-with.js b/js/src/tests/test262/language/statements/generators/unscopables-with.js
new file mode 100644
index 0000000000..dd6b4f414d
--- /dev/null
+++ b/js/src/tests/test262/language/statements/generators/unscopables-with.js
@@ -0,0 +1,98 @@
+// This file was procedurally generated from the following sources:
+// - src/function-forms/unscopables-with.case
+// - src/function-forms/default/gen-func-decl.template
+/*---
+description: Symbol.unscopables behavior across scope boundaries (generator function declaration)
+esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [globalThis, Symbol.unscopables, generators]
+flags: [generated, noStrict]
+info: |
+    GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
+
+        [...]
+        2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
+           GeneratorBody, scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+
+    ...
+    Let envRec be lex's EnvironmentRecord.
+    Let exists be ? envRec.HasBinding(name).
+
+    HasBinding
+
+    ...
+    If the withEnvironment flag of envRec is false, return true.
+    Let unscopables be ? Get(bindings, @@unscopables).
+    If Type(unscopables) is Object, then
+       Let blocked be ToBoolean(? Get(unscopables, N)).
+       If blocked is true, return false.
+
+    (The `with` Statement) Runtime Semantics: Evaluation
+
+    ...
+    Set the withEnvironment flag of newEnv’s EnvironmentRecord to true.
+    ...
+
+---*/
+let count = 0;
+var v = 1;
+globalThis[Symbol.unscopables] = {
+  v: true,
+};
+
+{
+  count++;
+
+var callCount = 0;
+// Stores a reference `ref` for case evaluation
+function* ref(x) {
+  count++;
+  with (globalThis) {
+    count++;
+    assert.sameValue(v, undefined, 'The value of `v` is expected to equal `undefined`');
+  }
+  count++;
+  var v = x;
+  with (globalThis) {
+    count++;
+    assert.sameValue(v, 10, 'The value of `v` is 10');
+    v = 20;
+  }
+  assert.sameValue(v, 20, 'The value of `v` is 20');
+  assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1');
+  callCount = callCount + 1;
+}
+
+ref(10).next();
+
+assert.sameValue(callCount, 1, 'generator function invoked exactly once');
+
+  count++;
+}
+assert.sameValue(count, 6, 'The value of `count` is 6');
+
+reportCompare(0, 0);