public void AssertRun_Given_ClassWithNoAsyncDeadlock_Should_Succeed()
{
var instance = new ClassWithAsyncDeadlock();
var finder = new ConcurrencyChecker(instance, null, 2000);
finder.Assert(1, () => instance.ShouldNotDeadLock());
}
public void AssertRun_Given_ClassWithDictionaryAsyncDeadlock_Should_ThrowException()
{
var instance = new ClassWithAsyncDeadlock();
var finder = new ConcurrencyChecker(instance, null, 500);
var error = Assert.Throws <ConcurrencyException>(() => finder.Assert(5, async() => await instance.DictionaryNotThreadSafeShouldLock()));
Assert.AreEqual("Possible deadlock detected. Make sure that you do not use .Wait() or .Result on async methods.", error.Message);
}
public void Run_Given_ClassWithObjectArrayConcurrencyIssues_With_ChangePropertyOnChildArray_Should_ThrowConcurrencyException()
{
var instance = new ClassWithObjectArrayConcurrencyIssues();
var finder = new ConcurrencyChecker(instance, null, 2000, 2);
var error = Assert.Throws <ConcurrencyException>(() => finder.Assert(2000, () => { instance.Names[0] = new { Name = "Jane" }; },
() => { instance.Names[0] = "Dave"; }));
Console.WriteLine(error.Message);
}
public void AssertRun_Given_ClassWithStaticFieldConcurrencyIssue_Should_ThrowException()
{
var instance = new ClassWithStaticFieldConcurrencyIssue();
var finder = new ConcurrencyChecker(instance);
instance.ChangeNameTo("John");
Assert.Throws <ConcurrencyException>(() => finder.Assert(5,
() => instance.ChangeNameTo("Jane"),
() => instance.ChangeNameTo("Peter")));
}
public void Run_Given_ClassWithLevelThreeDepth_With_DepthAs1ConcurrencyIssues_Should_ThrowConcurrencyException()
{
var instance = new ClassWithLevelThreeDepth();
var finder = new ConcurrencyChecker(instance, null, 2000, 1);
finder.Assert(800, () =>
{
instance.ChildPropDepthOne.ChildProp.StringProp = "two";
},
() => { instance.ChildPropDepthOne.ChildProp.StringProp = "three"; });
}
public void Run_Given_ClassWithArrayConcurrencyIssues_With_ChangePropertyOnChildArray_Should_Succeed()
{
var instance = new ClassWithArrayConcurrencyIssues();
var finder = new ConcurrencyChecker(instance, null, 2000);
finder.Assert(600, () => { instance.Names[0] = "Jane"; },
() =>
{
var name = instance.Names[0];
});
}
public void Run_Given_ClassWithDictionaryConcurrencyIssues_With_AddChangePropertyOnChildDictionary_Should_Succeed()
{
var instance = new ClassWithDictionaryConcurrencyIssues();
var finder = new ConcurrencyChecker(instance, null, 2000);
var error = Assert.Throws <ConcurrencyException>(() => finder.Assert(2000, () => { instance.AddToCache(Guid.NewGuid().ToString(), 1); },
() => { Thread.Sleep(1); }));
Console.WriteLine(error.Message);
Assert.IsTrue(error.Message.Contains("ClassWithDictionaryConcurrencyIssues->Cache: Possible concurrency issue because of the following exception: Collection was modified; enumeration operation may not execute."));
}
public void Run_Given_ClassWithDictionaryConcurrencyIssues_With_ChangePropertyOnChildDictionary_Should_ThrowConcurrencyException()
{
var instance = new ClassWithDictionaryConcurrencyIssues();
var finder = new ConcurrencyChecker(instance, null, 2000);
var error = Assert.Throws <ConcurrencyException>(() => finder.Assert(2000, () => { instance.UpdateCache("Existing", 1); },
() => { instance.UpdateCache("Existing", 2); }));
Console.WriteLine(error.Message);
Assert.IsTrue(error.Message.Contains("ClassWithDictionaryConcurrencyIssues->Cache: Possible concurrency issue because of the following exception: Collection was modified; enumeration operation may not execute."));
}
public void Run_Given_ClassWithLevelThreeDepth_With_DepthAs3AndConcurrencyIssues_Should_ThrowConcurrencyException()
{
var instance = new ClassWithLevelThreeDepth();
var finder = new ConcurrencyChecker(instance, null, 2000, 3);
var error = Assert.Throws <ConcurrencyException>(() => finder.Assert(1500, () =>
{
instance.ChildPropDepthOne.ChildProp.StringProp = "two";
},
() => { instance.ChildPropDepthOne.ChildProp.StringProp = "three"; }));
Console.WriteLine(error.Message);
}
public void Assert_Given_ClassWithTypeChangeConcurrencyIssue_With_ChangeType_Should_ThrowConcurrencyException()
{
var instance = new ClassWithTypeChangeConcurrencyIssue();
var finder = new ConcurrencyChecker(instance, null, 2000000);
var error = Assert.Throws <ConcurrencyException>(() => finder.Assert(10,
() => { instance.SetFoo(new ClassWithTypeChangeConcurrencyIssue.Foo1()); },
() => { instance.SetFoo(new ClassWithTypeChangeConcurrencyIssue.Foo2()); }));
Console.WriteLine(error.Message);
Assert.IsNotNull(error);
Assert.IsTrue(error.Message.Contains(
"ClassWithTypeChangeConcurrencyIssue->_foo: Reference and actual number of value changes does not match."));
}