1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/call/spread-obj-overrides-prev-properties.js b/js/src/tests/test262/language/expressions/call/spread-obj-overrides-prev-properties.js
new file mode 100644
index 0000000000..691d5250a1
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/call/spread-obj-overrides-prev-properties.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/spread/obj-overrides-prev-properties.case
+// - src/spread/default/call-expr.template
+/*---
+description: Object Spread properties overrides previous definitions (CallExpression)
+esid: sec-function-calls-runtime-semantics-evaluation
+features: [object-spread]
+flags: [generated]
+info: |
+    CallExpression : MemberExpression Arguments
+
+    [...]
+    9. Return EvaluateDirectCall(func, thisValue, Arguments, tailCall).
+
+    12.3.4.3 Runtime Semantics: EvaluateDirectCall
+
+    1. Let argList be ArgumentListEvaluation(arguments).
+    [...]
+    6. Let result be Call(func, thisValue, argList).
+    [...]
+
+    Pending Runtime Semantics: PropertyDefinitionEvaluation
+
+    PropertyDefinition:...AssignmentExpression
+
+    1. Let exprValue be the result of evaluating AssignmentExpression.
+    2. Let fromValue be GetValue(exprValue).
+    3. ReturnIfAbrupt(fromValue).
+    4. Let excludedNames be a new empty List.
+    5. Return CopyDataProperties(object, fromValue, excludedNames).
+
+---*/
+let o = {a: 2, b: 3};
+
+
+var callCount = 0;
+
+(function(obj) {
+  assert.sameValue(obj.a, 2);
+  assert.sameValue(obj.b, 3);
+  assert.sameValue(Object.keys(obj).length, 2);
+  assert.sameValue(o.a, 2);
+  assert.sameValue(o.b, 3);
+  callCount += 1;
+}({a: 1, b: 7, ...o}));
+
+assert.sameValue(callCount, 1);
+
+reportCompare(0, 0);