Merge pull request #3210 from tc39/rwaldron/shadowrealm-fixups

ShadowRealm: improved existing and additional coverage

test/built-ins/ShadowRealm/prototype/evaluate/nested-realms.js

@@ -7,6 +7,12 @@ description: >
 features: [ShadowRealm]
 ---*/
 
+assert.sameValue(
+  typeof ShadowRealm.prototype.evaluate,
+  'function',
+  'This test must fail if ShadowRealm.prototype.evaluate is not a function'
+);
+
 globalThis.myValue = 'a';
 const realm1 = new ShadowRealm();
 

test/built-ins/ShadowRealm/prototype/evaluate/returns-proxy-callable-object.js

@@ -0,0 +1,25 @@
+// Copyright (C) 2021 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-shadowrealm.prototype.evaluate
+description: >
+  ShadowRealm.prototype.evaluate wrapped proxy callable object.
+features: [ShadowRealm]
+---*/
+
+assert.sameValue(
+  typeof ShadowRealm.prototype.evaluate,
+  'function',
+  'This test must fail if ShadowRealm.prototype.evaluate is not a function'
+);
+
+const r = new ShadowRealm();
+
+const proxyCallable = r.evaluate(`
+function fn() { return 42; }
+new Proxy(fn, {});
+`);
+
+assert.sameValue(typeof proxyCallable, 'function', 'wrapped proxy callable object is typeof function');
+assert.sameValue(proxyCallable(), 42, 'wrappedpfn() returns 42');
+assert.sameValue(proxyCallable instanceof Proxy, false, 'the wrapped function "hides" the proxy instance');

test/built-ins/ShadowRealm/prototype/evaluate/wrapped-function-multiple-different-realms-nested.js

@@ -6,6 +6,11 @@ description: >
   ShadowRealm can wrap a function to multiple nested realms.
 features: [ShadowRealm]
 ---*/
+assert.sameValue(
+  typeof ShadowRealm.prototype.evaluate,
+  'function',
+  'This test must fail if ShadowRealm.prototype.evaluate is not a function'
+);
 
 globalThis.count = 0;
 const realm1 = new ShadowRealm();