public void VerifyCheckDataSizeThrowsExceptionWhenCbDataIsNonZeroAndPvDataIsNull()
{
var setcolumn = new JET_SETCOLUMN
{
cbData = 1,
};
setcolumn.CheckDataSize();
}
public void VerifyValidateThrowsExceptionWhenIbLongValueIsNegative()
{
var setcolumn = new JET_SETCOLUMN
{
ibLongValue = -1,
};
setcolumn.Validate();
}
public void VerifyValidateThrowsExceptionWhenPvDataIsNull()
{
var setcolumn = new JET_SETCOLUMN
{
cbData = 1,
};
setcolumn.Validate();
}
public void VerifyValidateThrowsExceptionWhenItagSequenceIsNegative()
{
var setcolumn = new JET_SETCOLUMN
{
itagSequence = -1,
};
setcolumn.Validate();
}
public void VerifyCheckDataSizeThrowsExceptionWhenIbDataCbDataIsTooLong()
{
var setcolumn = new JET_SETCOLUMN
{
ibData = 4,
pvData = new byte[4],
};
setcolumn.CheckDataSize();
}
public void VerifyCheckDataSizeThrowsExceptionWhenCbDataIsNegative()
{
var setcolumn = new JET_SETCOLUMN
{
cbData = -1,
pvData = new byte[1],
};
setcolumn.CheckDataSize();
}
public void VerifyCheckThrowsExceptionWhenCbDataIsTooLong()
{
var setcolumn = new JET_SETCOLUMN
{
cbData = 100,
pvData = new byte[9],
};
setcolumn.CheckDataSize();
}
public void VerifyValidateThrowsExceptionWhenCbDataIsTooLong()
{
var setcolumn = new JET_SETCOLUMN
{
cbData = 100,
pvData = new byte[9],
};
setcolumn.Validate();
}
public void Setup()
{
this.managed = new JET_SETCOLUMN
{
cbData = 1,
columnid = new JET_COLUMNID { Value = 2 },
grbit = SetColumnGrbit.AppendLV,
ibLongValue = 3,
itagSequence = 4,
};
this.native = this.managed.GetNativeSetcolumn();
}
public void VerifyCheckDataSizeThrowsExceptionWhenItagSequenceIsNegative()
{
var setcolumn = new JET_SETCOLUMN
{
itagSequence = -1,
};
setcolumn.CheckDataSize();
}
public void VerifyCheckDataSizeThrowsExceptionWhenIbLongValueIsNegative()
{
var setcolumn = new JET_SETCOLUMN
{
ibLongValue = -1,
};
setcolumn.CheckDataSize();
}
public static JET_wrn JetSetColumns(JET_SESID sesid, JET_TABLEID tableid, JET_SETCOLUMN[] setcolumns, int numColumns)
{
if (null == setcolumns)
{
throw new ArgumentNullException("setcolumns");
}
if (numColumns < 0 || numColumns > setcolumns.Length)
{
throw new ArgumentOutOfRangeException("numColumns", numColumns, "cannot be negative or greater than setcolumns.Length");
}
using (var gchandles = new GCHandleCollection())
{
unsafe
{
NATIVE_SETCOLUMN* nativeSetColumns = stackalloc NATIVE_SETCOLUMN[numColumns];
// For performance, copy small amounts of data into a local buffer instead
// of pinning the data.
const int BufferSize = 128;
byte* buffer = stackalloc byte[BufferSize];
int bufferRemaining = BufferSize;
for (int i = 0; i < numColumns; ++i)
{
setcolumns[i].CheckDataSize();
nativeSetColumns[i] = setcolumns[i].GetNativeSetcolumn();
if (null == setcolumns[i].pvData)
{
nativeSetColumns[i].pvData = IntPtr.Zero;
}
else if (bufferRemaining >= setcolumns[i].cbData)
{
nativeSetColumns[i].pvData = new IntPtr(buffer);
Marshal.Copy(setcolumns[i].pvData, setcolumns[i].ibData, nativeSetColumns[i].pvData, setcolumns[i].cbData);
buffer += setcolumns[i].cbData;
bufferRemaining -= setcolumns[i].cbData;
Debug.Assert(bufferRemaining >= 0, "Buffer remaining is negative");
}
else
{
byte* pinnedBuffer = (byte*)gchandles.Add(setcolumns[i].pvData).ToPointer();
nativeSetColumns[i].pvData = new IntPtr(pinnedBuffer + setcolumns[i].ibData);
}
}
int err = Impl.JetSetColumns(sesid, tableid, nativeSetColumns, numColumns);
for (int i = 0; i < numColumns; ++i)
{
setcolumns[i].err = (JET_wrn)nativeSetColumns[i].err;
}
return Api.Check(err);
}
}
}
public void JetSetColumnToString()
{
var value = new JET_SETCOLUMN { columnid = new JET_COLUMNID { Value = 0x1234F } };
Assert.AreEqual("JET_SETCOLUMN(0x1234f,<null>,ibLongValue=0,itagSequence=0)", value.ToString());
}
