public void TestSingleValueConversion()
{
var native = new NATIVE_ENUMCOLUMN
{
columnid = 1,
err = (int) JET_wrn.ColumnSingleValue,
cbData = 3,
pvData = new IntPtr(4),
};
var managed = new JET_ENUMCOLUMN();
managed.SetFromNativeEnumColumn(native);
Assert.AreEqual<uint>(1, managed.columnid.Value);
Assert.AreEqual(JET_wrn.ColumnSingleValue, managed.err);
Assert.AreEqual(3, managed.cbData);
Assert.AreEqual(new IntPtr(4), managed.pvData);
}
public void TestMultiValueConversion()
{
var managed = new JET_ENUMCOLUMN();
unsafe
{
var columnvalues = stackalloc NATIVE_ENUMCOLUMNVALUE[2];
var native = new NATIVE_ENUMCOLUMN
{
columnid = 1,
err = (int) JET_wrn.Success,
cEnumColumnValue = 3,
rgEnumColumnValue = columnvalues,
};
managed.SetFromNativeEnumColumn(native);
}
Assert.AreEqual<uint>(1, managed.columnid.Value);
Assert.AreEqual(JET_wrn.Success, managed.err);
Assert.AreEqual(3, managed.cEnumColumnValue);
Assert.AreEqual(null, managed.rgEnumColumnValue);
}
public static JET_wrn JetEnumerateColumns(
JET_SESID sesid,
JET_TABLEID tableid,
int numColumnids,
JET_ENUMCOLUMNID[] columnids,
out int numColumnValues,
out JET_ENUMCOLUMN[] columnValues,
JET_PFNREALLOC allocator,
IntPtr allocatorContext,
int maxDataSize,
EnumerateColumnsGrbit grbit)
{
return Api.Check(
Impl.JetEnumerateColumns(
sesid,
tableid,
numColumnids,
columnids,
out numColumnValues,
out columnValues,
allocator,
allocatorContext,
maxDataSize,
grbit));
}
public void JetEnumcolumnToString()
{
var value = new JET_ENUMCOLUMN { columnid = new JET_COLUMNID { Value = 27 } };
Assert.AreEqual("JET_ENUMCOLUMN(0x1b)", value.ToString());
}
