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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
using
System
;
using
System
.
Collections
.
Generic
;
using
System
.
Reflection
;
using
System
.
Threading
;
using
Microsoft
.
ClearScript
.
JavaScript
;
using
Microsoft
.
ClearScript
.
V8
;
using
Microsoft
.
VisualStudio
.
TestTools
.
UnitTesting
;
namespace
Microsoft
.
ClearScript
.
Test
{
internal
static
class
ConsoleTest
{
#region test methods
public
static
unsafe
void
BugFix_V8StackLimitIntegerOverflow
(
)
{
var
threads
=
new
List
<
Thread
>
(
)
;
var
exit
=
new
ManualResetEventSlim
(
)
;
try
{
var
done
=
new
AutoResetEvent
(
false
)
;
Exception
caughtException
=
null
;
var
found
=
false
;
for
(
var
iteration
=
0
;
iteration
<
256
;
iteration
++
)
{
var
thread
=
new
Thread
(
(
)
=>
{
var
ptr
=
stackalloc
byte
[
192
*
1024
]
;
if
(
(
ulong
)
ptr
<
(
1536
*
1024UL
)
)
{
try
{
using
(
var
engine
=
new
V8ScriptEngine
(
)
)
{
Assert
.
AreEqual
(
Math
.
PI
,
engine
.
Evaluate
(
"Math.PI"
)
)
;
}
found
=
true
;
}
catch
(
Exception
exception
)
{
caughtException
=
exception
;
}
}
done
.
Set
(
)
;
exit
.
Wait
(
)
;
}
,
384
*
1024
)
;
threads
.
Add
(
thread
)
;
thread
.
Start
(
)
;
done
.
WaitOne
(
)
;
if
(
caughtException
is
not
null
)
{
throw
new
AssertFailedException
(
"Exception thrown in worker thread"
,
caughtException
)
;
}
if
(
found
)
{
break
;
}
}
if
(
!
found
)
{
Assert
.
Inconclusive
(
"Could not replicate test condition: thread stack sufficiently low in address space"
)
;
}
}
finally
{
exit
.
Set
(
)
;
threads
.
ForEach
(
thread
=>
thread
.
Join
(
)
)
;
}
}
public
static
void
BugFix_MultipleAppDomains
(
)
{
#pragma warning disable
SYSLIB0024
// Creating and unloading AppDomains is not supported and throws an exception
var
domain1
=
AppDomain
.
CreateDomain
(
"domain1"
)
;
var
domain2
=
AppDomain
.
CreateDomain
(
"domain2"
)
;
var
obj1
=
(
MultiAppDomainTest
)
domain1
.
CreateInstanceAndUnwrap
(
Assembly
.
GetEntryAssembly
(
)
.
FullName
,
typeof
(
MultiAppDomainTest
)
.
FullName
)
;
var
obj2
=
(
MultiAppDomainTest
)
domain2
.
CreateInstanceAndUnwrap
(
Assembly
.
GetEntryAssembly
(
)
.
FullName
,
typeof
(
MultiAppDomainTest
)
.
FullName
)
;
obj1
.
CreateEngine
(
)
;
obj2
.
CreateEngine
(
)
;
obj1
.
DisposeEngine
(
)
;
obj2
.
DisposeEngine
(
)
;
AppDomain
.
Unload
(
domain1
)
;
AppDomain
.
Unload
(
domain2
)
;
#pragma warning restore
SYSLIB0024
// Creating and unloading AppDomains is not supported and throws an exception
}
public
static
void
V8ScriptEngine_HeapExpansionMultiplier
(
)
{
using
(
var
engine
=
new
V8ScriptEngine
(
new
V8RuntimeConstraints
{
HeapExpansionMultiplier
=
1.25
}
)
)
{
engine
.
Execute
(
@"
let node = [];
for (let j = 0; j < 15; ++j) {
const offset = Math.round((Math.random() - 0.5) * 12345);
for (let i = 0; i < 10000000; ++i) {
node.push(i + offset);
}
const next = [];
next.push(node);
node = next;
}
"
)
;
}
}
public
static
void
BugFix_V8ArrayBufferLeak
(
)
{
for
(
var
repetitions
=
0
;
repetitions
<
64
;
repetitions
++
)
{
CreateArrayBufferLeak
(
)
;
}
}
#endregion
#region miscellaneous
public
class
MultiAppDomainTest
:
MarshalByRefObject
{
private
ScriptEngine
engine
;
public
void
CreateEngine
(
)
{
engine
=
new
V8ScriptEngine
(
)
;
}
public
void
DisposeEngine
(
)
{
engine
.
Dispose
(
)
;
}
}
private
static
void
CreateArrayBufferLeak
(
)
{
using
(
var
engine
=
new
V8ScriptEngine
(
)
)
{
const
int
size
=
4
*
1024
;
var
bytes
=
new
byte
[
size
]
;
new
Random
(
)
.
NextBytes
(
bytes
)
;
dynamic
createByteArray
=
engine
.
Evaluate
(
"(size => new Uint8Array(size))"
)
;
ITypedArray
<
byte
>
CreateByteArray
(
int
count
)
=>
createByteArray
(
count
)
;
for
(
var
i
=
0
;
i
<
16
*
1024
;
i
++
)
{
var
typedArray
=
CreateByteArray
(
size
)
;
typedArray
.
Write
(
bytes
,
0
,
size
,
0
)
;
}
}
}
#endregion
}
}
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