public void box_unbox_Test_1()
{
// Creates objects for testing of different casts.
object o_enum = MyEnum.Value;
object o_enum1 = MyEnum1.Value;
object o_long = 24L;
object o_class = new CastTestClass();
object o_guid = Guid.NewGuid();
// Try casts that shoud succeed. Any exception here means failure.
// First we try casts that should succeed.
// Casts between enums with the same basic type
MyEnum2 e2 = (MyEnum2)o_enum; // line 2
// Cast from enum to primitive type that enum is based on
short sv = (short)o_enum;
Assert.Equal(sv, (short)MyEnum.Value);
// Cast from enum to primitive type that enum is based on
int iv = (int)o_enum1;
Assert.Equal(iv, (short)MyEnum1.Value);
int i_long = (int)(long)o_long;
CastTestClass cls = (CastTestClass)o_class;
Guid guid = (Guid)o_guid;
// Now casts that should throw exception. Any cast that does not throw - means error.
Assert.Throws(typeof(InvalidCastException), () =>
{
MyEnum1 e1 = (MyEnum1)o_enum;
}, "Trying to cast incompatible enums - should throw InvalidCastException");
// Now casts that should throw exception. Any cast that does not throw - means error.
Assert.Throws(typeof(InvalidCastException), () =>
{
int i = (int)o_long;
}, "Trying to cast long to int - should throw InvalidCastException");
// Now casts that should throw exception. Any cast that does not throw - means error.
Assert.Throws(typeof(InvalidCastException), () =>
{
int i = (int)o_class;
}, "Trying to cast object to int - should throw InvalidCastException");
// Now casts that should throw exception. Any cast that does not throw - means error.
Assert.Throws(typeof(InvalidCastException), () =>
{
int i = (int)o_enum;
}, "Trying to cast enum to int - should throw InvalidCastException");
// Now casts that should throw exception. Any cast that does not throw - means error.
Assert.Throws(typeof(InvalidCastException), () =>
{
int i = (int)o_guid;
}, "Trying to cast Guid to int - should throw InvalidCastException");
}
public MFTestResults box_unbox_Test_1()
{
MFTestResults retVal = MFTestResults.Pass;
// Creates objects for testing of different casts.
object o_enum = MyEnum.Value;
object o_enum1 = MyEnum1.Value;
object o_long = 24L;
object o_class = new CastTestClass();
object o_guid = Guid.NewGuid();
// Try casts that shoud succeed. Any exception here means failure.
try
{
// First we try casts that should succeed.
// Casts between enums with the same basic type
MyEnum2 e2 = (MyEnum2)o_enum; // line 2
// Cast from enum to primitive type that enum is based on
short sv = (short)o_enum;
if (sv != (short)MyEnum.Value)
{
Log.Comment("Changed value during box/unbox from " + MyEnum.Value + " to " + sv);
retVal = MFTestResults.Fail;
}
// Cast from enum to primitive type that enum is based on
int iv = (int)o_enum1;
if (iv != (short)MyEnum1.Value)
{
Log.Comment("Changed value during box/unbox from " + MyEnum1.Value + " to " + iv);
retVal = MFTestResults.Fail;
}
int i_long = (int)(long)o_long;
CastTestClass cls = (CastTestClass)o_class;
Guid guid = (Guid)o_guid;
}
catch (Exception e)
{
Log.Comment("Exception thrown during unbox test" + e.Message);
retVal = MFTestResults.Fail;
}
// Now casts that should throw exception. Any cast that does not throw - means error.
try
{
MyEnum1 e1 = (MyEnum1)o_enum;
Log.Comment("Error, cast succeded, but should have thrown exception");
retVal = MFTestResults.Fail;
}
catch (Exception ) { }
// Now casts that should throw exception. Any cast that does not throw - means error.
try
{
int i = (int)o_long;
Log.Comment("Error, cast object with long to int succeded, but should have thrown exception");
retVal = MFTestResults.Fail;
}
catch (Exception ) { }
// Now casts that should throw exception. Any cast that does not throw - means error.
try
{
int i = (int)o_class;
Log.Comment("Error, cast object class to int succeded, but should have thrown exception");
retVal = MFTestResults.Fail;
}
catch (Exception ) { }
// Now casts that should throw exception. Any cast that does not throw - means error.
try
{
int i = (int)o_enum;
Log.Comment("Error, cast object class to int succeded, but should have thrown exception");
retVal = MFTestResults.Fail;
}
catch (Exception ) { }
// Now casts that should throw exception. Any cast that does not throw - means error.
try
{
int i = (int)o_guid;
Log.Comment("Error, cast stuct Guid class to int succeded, but should have thrown exception");
retVal = MFTestResults.Fail;
}
catch (Exception) { }
return retVal;
}
