public void StructureToPtr_InvalidLengthByValArrayInStruct_ThrowsArgumentException()
{
var structure = new StructWithByValArray
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
}
}
};
int size = Marshal.SizeOf(structure);
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Assert.Throws <ArgumentException>(() => Marshal.StructureToPtr(structure, memory, false));
Assert.Throws <ArgumentException>(() => Marshal.StructureToPtr(structure, memory, true));
}
finally
{
Marshal.FreeHGlobal(memory);
}
}
public void StructureToPtr_OverflowByValArrayInStruct_Success()
{
var structure = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
},
new StructWithIntField {
value = 5
},
new StructWithIntField {
value = 6
}
}
};
int size = Marshal.SizeOf(structure);
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure, memory, false);
Marshal.StructureToPtr(structure, memory, true);
}
finally
{
Marshal.FreeHGlobal(memory);
}
}
public void VerifyByValArrayInStruct()
{
// equal
var structure1 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
},
new StructWithIntField {
value = 5
}
}
};
int size = Marshal.SizeOf(structure1);
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure1, memory, false);
Marshal.StructureToPtr(structure1, memory, true);
}
finally
{
Marshal.FreeHGlobal(memory);
}
// underflow
var structure2 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
}
}
};
size = Marshal.SizeOf(structure2);
memory = Marshal.AllocHGlobal(size);
try
{
Assert.Throws <ArgumentException>(() => Marshal.StructureToPtr(structure2, memory, false));
Assert.Throws <ArgumentException>(() => Marshal.StructureToPtr(structure2, memory, true));
}
finally
{
Marshal.FreeHGlobal(memory);
}
// overflow
var structure3 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
},
new StructWithIntField {
value = 5
},
new StructWithIntField {
value = 6
}
}
};
size = Marshal.SizeOf(structure3);
memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure3, memory, false);
Marshal.StructureToPtr(structure3, memory, true);
}
finally
{
Marshal.FreeHGlobal(memory);
}
}
