public void ThrowExceptionWhenDroppingWithNullSqlConnection()
{
Table table = new Table("test");
TableIndex index = new TableIndex("testIndex", table, column);
Assert.Throws <ArgumentNullException>(() => index.Drop(null));
}
public void CreateIndexProperly(IndexType indexType, bool isUnique, ColumnSort columnSort)
{
string indexName = "IX_Test";
Table table = fixture.table;
List <Tuple <Column, ColumnSort> > indexColumns = new List <Tuple <Column, ColumnSort> >();
table.Columns.ForEach(c =>
{
indexColumns.Add(Tuple.Create(c, columnSort));
TableIndex index = new TableIndex(indexName, table, indexColumns.ToArray())
{
IsUnique = isUnique,
IndexType = indexType
};
using (SqlConnection sqlConnection = new SqlConnection(connectionString))
{
sqlConnection.Open();
index.Create(sqlConnection);
using (SqlCommand sqlCommand = sqlConnection.CreateCommand())
{
string sql = $@"
SELECT COUNT(*)
FROM sys.indexes
JOIN sys.index_columns
ON sys.indexes.object_id = sys.index_columns.object_id
where name = '{indexName}'";
sqlCommand.CommandText = sql;
int columnCount = (int)sqlCommand.ExecuteScalar();
Assert.Equal(indexColumns.Count, columnCount);
sql = $@"
SELECT OBJECT_NAME(sys.indexes.object_id), name, type_desc, is_unique, is_descending_key
FROM sys.indexes
JOIN sys.index_columns
ON sys.indexes.object_id = sys.index_columns.object_id
where name = '{indexName}'";
sqlCommand.CommandText = sql;
using (SqlDataReader sqlDataReader = sqlCommand.ExecuteReader())
{
while (sqlDataReader.Read())
{
Assert.Equal(table.Name, sqlDataReader.GetString(0));
Assert.Equal(index.Name, sqlDataReader.GetString(1));
Assert.Equal(indexType.ToString(), sqlDataReader.GetString(2));
Assert.Equal(isUnique, sqlDataReader.GetBoolean(3));
Assert.Equal(columnSort == ColumnSort.DESC, sqlDataReader.GetBoolean(4));
}
}
}
index.Drop(sqlConnection);
}
});
}