Add optional chaining testssnapshot-20180312-3c69133-based

Change-Id: Ia87313a2756dfbc3d90128ac77cd4dc6c8c137df
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
(cherry picked from commit 7d1cf05c547a636495b2731c4fc2842a01849064)
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 75 insertions, 0 deletions

diff --git a/test/language/expressions/optional-chaining/call-expression.js b/test/language/expressions/optional-chaining/call-expression.js
new file mode 100644
index 000000000..4cc1a73fc
--- /dev/null
+++ b/test/language/expressions/optional-chaining/call-expression.js
@@ -0,0 +1,75 @@
+// Copyright 2019 Google, Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: prod-OptionalExpression
+description: >
+  optional chain on call expression
+info: |
+  Left-Hand-Side Expressions
+    OptionalExpression:
+      CallExpression OptionalChain
+features: [optional-chaining]
+---*/
+
+// CallExpression CoverCallExpressionAndAsyncArrowHead
+function fn () {
+  return {a: 33};
+};
+const obj = {
+  fn () {
+    return 44;
+  }
+}
+assert.sameValue(33, fn()?.a);
+assert.sameValue(undefined, fn()?.b);
+assert.sameValue(44, obj?.fn());
+
+// CallExpression SuperCall
+class A {}
+class B extends A {
+  constructor () {
+    assert.sameValue(undefined, super()?.a);
+  }
+}
+new B();
+
+// CallExpression Arguments
+function fn2 () {
+  return () => {
+    return {a: 66};
+  };
+}
+function fn3 () {
+  return () => {
+    return null;
+  };
+}
+assert.sameValue(66, fn2()()?.a);
+assert.sameValue(undefined, fn3()()?.a);
+
+// CallExpression [Expression]
+function fn4 () {
+  return [{a: 77}];
+}
+function fn5 () {
+  return [];
+}
+assert.sameValue(77, fn4()[0]?.a);
+assert.sameValue(undefined, fn5()[0]?.a);
+
+// CallExpression .IdentifierName
+function fn6 () {
+  return {
+    a: {
+      b: 88
+    }
+  };
+}
+assert.sameValue(88, fn6().a?.b);
+assert.sameValue(undefined, fn6().b?.c);
+
+// CallExpression TemplateLiteral
+function fn7 () {
+  return () => {};
+}
+assert.sameValue(undefined, fn7()`hello`?.a);