1  /*
 2   * Copyright (C) 2016-2020 Apple Inc. All rights reserved.
 3   *
 4   * Redistribution and use in source and binary forms, with or without
 5   * modification, are permitted provided that the following conditions
 6   * are met:
 7   * 1. Redistributions of source code must retain the above copyright
 8   *    notice, this list of conditions and the following disclaimer.
 9   * 2. Redistributions in binary form must reproduce the above copyright
10   *    notice, this list of conditions and the following disclaimer in the
11   *    documentation and/or other materials provided with the distribution.
12   *
13   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23   * THE POSSIBILITY OF SUCH DAMAGE.
24   */
25  
26  #include "config.h"
27  #include "FunctionOverridesTest.h"
28  
29  #include "FunctionOverrides.h"
30  #include "InitializeThreading.h"
31  #include "JavaScript.h"
32  #include "Options.h"
33  
34  using JSC::Options;
35  
36  int testFunctionOverrides()
37  {
38      bool failed = false;
39  
40      JSC::initialize();
41  
42      const char* oldFunctionOverrides = Options::functionOverrides();
43      
44      Options::functionOverrides() = "./testapiScripts/testapi-function-overrides.js";
45      JSC::FunctionOverrides::reinstallOverrides();
46  
47      JSGlobalContextRef context = JSGlobalContextCreateInGroup(nullptr, nullptr);
48  
49      JSObjectRef globalObject = JSContextGetGlobalObject(context);
50      ASSERT_UNUSED(globalObject, JSValueIsObject(context, globalObject));
51  
52      const char* scriptString =
53          "var str = '';" "\n"
54          "function f1() { /* Original f1 */ }" "\n"
55          "str += f1 + '\\n';" "\n"
56          "var f2 = function() {" "\n"
57          "    // Original f2" "\n"
58          "}" "\n"
59          "str += f2 + '\\n';" "\n"
60          "str += (function() { /* Original f3 */ }) + '\\n';" "\n"
61          "var f4Source = '/* Original f4 */'" "\n"
62          "var f4 =  new Function(f4Source);" "\n"
63          "str += f4 + '\\n';" "\n"
64          "\n"
65          "var expectedStr =" "\n"
66          "'function f1() { /* Overridden f1 */ }\\n"
67          "function () { /* Overridden f2 */ }\\n"
68          "function () { /* Overridden f3 */ }\\n"
69          "function anonymous() { /* Overridden f4 */ }\\n';"
70          "var result = (str == expectedStr);" "\n"
71          "result";
72  
73      JSStringRef script = JSStringCreateWithUTF8CString(scriptString);
74      JSValueRef exception = nullptr;
75      JSValueRef resultRef = JSEvaluateScript(context, script, nullptr, nullptr, 1, &exception);
76      JSStringRelease(script);
77  
78      if (!JSValueIsBoolean(context, resultRef) || !JSValueToBoolean(context, resultRef))
79          failed = true;
80  
81      JSGlobalContextRelease(context);
82      
83      JSC::Options::functionOverrides() = oldFunctionOverrides;
84      JSC::FunctionOverrides::reinstallOverrides();
85  
86      printf("%s: function override tests.\n", failed ? "FAIL" : "PASS");
87  
88      return failed;
89  }