您可以执行以下操作:
public static void ClearDatabase(DbContext context)
{
var objectContext = ((IObjectContextAdapter)context).ObjectContext;
var entities = objectContext.MetadataWorkspace.GetEntityContainer(objectContext.DefaultContainerName, DataSpace.CSpace).BaseEntitySets;
var method = objectContext.GetType().GetMethods().First(x => x.Name == "CreateObjectSet");
var objectSets = entities.Select(x => method.MakeGenericMethod(Type.GetType(x.ElementType.FullName))).Select(x => x.Invoke(objectContext, null));
var tableNames = objectSets.Select(objectSet => (objectSet.GetType().GetProperty("EntitySet").GetValue(objectSet, null) as EntitySet).Name).ToList();
foreach (var tableName in tableNames)
{
context.Database.ExecuteSqlCommand(string.Format("DELETE FROM {0}", tableName));
}
context.SaveChanges();
}
如果您没有限制,并且以某种方式为您的测试设置标识列很重要(我不建议这样做),您可以使用 TRUNCATE 而不是 DELETE FROM。
(从这里删除的代码。)