aspnetcore/test/EF.Test/DbUtil.cs

104 lines
3.9 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Data.SqlClient;
using System.Linq;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Xunit;
namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore.Test
{
public static class DbUtil
{
public static IServiceCollection ConfigureDbServices<TContext>(string connectionString, IServiceCollection services = null) where TContext : DbContext
{
if (services == null)
{
services = new ServiceCollection();
}
services.AddHttpContextAccessor();
services.AddDbContext<TContext>(options =>
{
options.UseSqlServer(connectionString);
});
return services;
}
public static TContext Create<TContext>(string connectionString, IServiceCollection services = null) where TContext : DbContext
{
var serviceProvider = ConfigureDbServices<TContext>(connectionString, services).BuildServiceProvider();
return serviceProvider.GetRequiredService<TContext>();
}
public static bool VerifyMaxLength(SqlConnection conn, string table, int maxLength, params string[] columns)
{
var count = 0;
using (
var command =
new SqlCommand("SELECT COLUMN_NAME, CHARACTER_MAXIMUM_LENGTH FROM INFORMATION_SCHEMA.COLUMNS where TABLE_NAME=@Table", conn))
{
command.Parameters.Add(new SqlParameter("Table", table));
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
if (!columns.Contains(reader.GetString(0)))
{
continue;
}
if (reader.GetInt32(1) != maxLength)
{
return false;
}
count++;
}
return count == columns.Length;
}
}
}
public static bool VerifyColumns(SqlConnection conn, string table, params string[] columns)
{
var count = 0;
using (
var command =
new SqlCommand("SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS where TABLE_NAME=@Table", conn))
{
command.Parameters.Add(new SqlParameter("Table", table));
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
count++;
if (!columns.Contains(reader.GetString(0)))
{
return false;
}
}
return count == columns.Length;
}
}
}
public static void VerifyIndex(SqlConnection conn, string table, string index, bool isUnique = false)
{
using (
var command =
new SqlCommand(
"SELECT COUNT(*) FROM sys.indexes where NAME=@Index AND object_id = OBJECT_ID(@Table) AND is_unique = @Unique", conn))
{
command.Parameters.Add(new SqlParameter("Index", index));
command.Parameters.Add(new SqlParameter("Table", table));
command.Parameters.Add(new SqlParameter("Unique", isUnique));
using (var reader = command.ExecuteReader())
{
Assert.True(reader.Read());
Assert.True(reader.GetInt32(0) > 0);
}
}
}
}
}