public void Can_replace_connection_with_different_provider()
{
var intializer = new ReplaceConnectionInitializer();
Database.SetInitializer(intializer);
using (var context = new ReplaceConnectionContext())
{
using (var newConnection =
new LazyInternalConnection(
context,
new DbConnectionInfo(
"Data Source=NewReplaceConnectionContextDatabase.sdf",
"System.Data.SqlServerCe.4.0")))
{
context.InternalContext.OverrideConnection(newConnection);
Assert.IsType <SqlCeConnection>(context.Database.Connection);
Assert.Equal(
"NewReplaceConnectionContextDatabase.sdf",
context.Database.Connection.Database);
context.Database.Initialize(force: true);
Assert.Equal(
"NewReplaceConnectionContextDatabase.sdf",
intializer.DatabaseNameUsedDuringInitialization);
}
}
}
private void Can_replace_connection_implementation(
ReplaceConnectionContext context,
LazyInternalConnection newConnection)
{
Database.Delete(newConnection.Connection);
Database.Delete(typeof(ReplaceConnectionContext).DatabaseName());
context.InternalContext.OverrideConnection(newConnection);
context.Entities.Add(
new PersistEntity
{
Name = "Testing"
});
context.SaveChanges();
Assert.Same(newConnection.Connection, context.Database.Connection);
Assert.True(Database.Exists(newConnection.Connection));
Assert.False(Database.Exists(typeof(ReplaceConnectionContext).DatabaseName()));
// By pass EF just to make sure everything targetted the correct database
var cmd = newConnection.Connection.CreateCommand();
cmd.CommandText = "SELECT Count(*) FROM PersistEntities";
cmd.Connection.Open();
Assert.Equal(1, cmd.ExecuteScalar());
cmd.Connection.Close();
}
public void LazyInternalConnection_provider_name_calculated_when_connection_from_config()
{
using (var connection = new LazyInternalConnection("name=LazyConnectionTest"))
{
Assert.Equal("System.Data.SqlServerCe.4.0", connection.ProviderName);
}
}
public void LazyInternalConnection_provider_name_calculated_when_connection_by_convention()
{
using (var connection = new LazyInternalConnection("ConnectionName"))
{
Assert.Equal("System.Data.SqlClient", connection.ProviderName);
}
}
public void Can_replace_connection()
{
var intializer = new ReplaceConnectionInitializer();
Database.SetInitializer(intializer);
using (var context = new ReplaceConnectionContext())
{
using (var newConnection =
new LazyInternalConnection(
context,
new DbConnectionInfo(
@"Server=.\SQLEXPRESS;Database=NewReplaceConnectionContextDatabase;Trusted_Connection=True;",
"System.Data.SqlClient")))
{
context.InternalContext.OverrideConnection(newConnection);
Assert.IsType <SqlConnection>(context.Database.Connection);
Assert.Equal("NewReplaceConnectionContextDatabase", context.Database.Connection.Database);
context.Database.Initialize(force: true);
Assert.Equal(
"NewReplaceConnectionContextDatabase",
intializer.DatabaseNameUsedDuringInitialization);
}
}
}
public void Disposed_LazyInternalConnection_can_be_reused()
{
var internalConnection = new LazyInternalConnection("NameForFactory");
try
{
var disposed1 = 0;
var disposed2 = 0;
var connection1 = internalConnection.Connection;
connection1.Disposed += (_, __) => disposed1++;
internalConnection.Dispose();
Assert.Equal(1, disposed1);
Assert.Equal(0, disposed2);
var connection2 = internalConnection.Connection;
connection2.Disposed += (_, __) => disposed2++;
internalConnection.Dispose();
Assert.Equal(1, disposed1);
Assert.Equal(1, disposed2);
}
finally
{
internalConnection.Dispose();
}
}
public void LazyInternalConnection_can_calculate_ConnectionHasModel_true_from_config_file_without_initializing()
{
using (var connection = new LazyInternalConnection("name=EntityConnectionString"))
{
Assert.True(connection.ConnectionHasModel);
Assert.False(connection.IsInitialized);
}
}
public void LazyInternalConnection_can_calculate_ConnectionHasModel_true_from_DbConnectionInfo_without_initializing()
{
using (var connection = new LazyInternalConnection(new DbConnectionInfo("EntityConnectionString")))
{
Assert.True(connection.ConnectionHasModel);
Assert.False(connection.IsInitialized);
}
}
// <summary>
// Performs the operation defined by the given delegate using the given lazy connection, ensuring
// that the lazy connection is disposed after use.
// </summary>
// <param name="lazyConnection"> Information used to create a DbConnection. </param>
// <param name="operation"> The operation to perform. </param>
// <returns> The return value of the operation. </returns>
private static bool PerformDatabaseOp(
LazyInternalConnection lazyConnection, Func <ObjectContext, bool> operation)
{
using (lazyConnection)
{
return(PerformDatabaseOp(lazyConnection.Connection, operation));
}
}
public void Default_connection_factory_is_used_to_create_connection_from_connection_string()
{
using (var internalConnection = new LazyInternalConnection("Database=HardCodedConnectionString"))
{
var connection = internalConnection.Connection;
Assert.IsType <SqlConnection>(connection);
}
}
public void LazyInternalConnection_can_calculate_ConnectionHasModel_false_from_convention_without_initializing()
{
using (var connection = new LazyInternalConnection("MyName"))
{
Assert.False(connection.ConnectionHasModel);
Assert.False(connection.IsInitialized);
}
}
public void LazyInternalConnection_throws_when_cant_find_connection_from_DbConnectionInfo_in_config_file()
{
using (var connection = new LazyInternalConnection(new DbConnectionInfo("YouWontFindMe")))
{
Assert.Equal(
Strings.DbConnectionInfo_ConnectionStringNotFound("YouWontFindMe"),
Assert.Throws <InvalidOperationException>(() => { var temp = connection.Connection; }).Message);
}
}
public void LazyInternalConnection_ConnectionHasModel_without_initializing_throws_when_connection_not_in_config_DbConnectionInfo()
{
using (var connection = new LazyInternalConnection(new DbConnectionInfo("WontFindMe")))
{
Assert.Equal(
Strings.DbConnectionInfo_ConnectionStringNotFound("WontFindMe"),
Assert.Throws <InvalidOperationException>(() => { var temp = connection.ConnectionHasModel; }).Message);
}
}
public void Nice_exception_is_thrown_if_connection_string_in_app_config_does_not_contain_provider_name()
{
using (var internalConnection = new LazyInternalConnection("ConnectionWithoutProviderName"))
{
Assert.Equal(
Strings.DbContext_ProviderNameMissing("ConnectionWithoutProviderName"),
Assert.Throws <InvalidOperationException>(() => { var _ = internalConnection.Connection; }).Message);
}
}
public void Connection_from_factory_is_cached()
{
using (var internalConnection = new LazyInternalConnection("NameForFactory"))
{
var connection = internalConnection.Connection;
Assert.Same(connection, internalConnection.Connection);
Assert.Same(connection, internalConnection.Connection);
}
}
public void LazyInternalConnection_can_calculate_ConnectionHasModel_true_from_connection_string_without_initializing()
{
var efString = ConfigurationManager.ConnectionStrings["EntityConnectionString"].ConnectionString;
using (var connection = new LazyInternalConnection(efString))
{
Assert.True(connection.ConnectionHasModel);
Assert.False(connection.IsInitialized);
}
}
public void Connection_from_hard_coded_connection_string_is_cached()
{
using (var internalConnection = new LazyInternalConnection("Database=HardCodedConnectionString"))
{
var connection = internalConnection.Connection;
Assert.Same(connection, internalConnection.Connection);
Assert.Same(connection, internalConnection.Connection);
}
}
public void Connection_from_app_config_is_cached()
{
using (var internalConnection = new LazyInternalConnection("Couger35.Hubcap.FullNameDbContext"))
{
var connection = internalConnection.Connection;
Assert.Same(connection, internalConnection.Connection);
Assert.Same(connection, internalConnection.Connection);
}
}
public void LazyInternalConnection_can_create_connection_from_DbConnectionInfo_from_config_file()
{
using (var connection = new LazyInternalConnection(new DbConnectionInfo("LazyConnectionTest")))
{
Assert.IsType <SqlCeConnection>(connection.Connection);
Assert.Equal("ConnectionFromAppConfig.sdf", connection.Connection.Database);
Assert.Equal("LazyConnectionTest", connection.ConnectionStringName);
Assert.Equal(DbConnectionStringOrigin.DbContextInfo, connection.ConnectionStringOrigin);
}
}
public void LazyInternalConnection_can_calculate_ConnectionHasModel_false_after_initializing()
{
using (var connection = new LazyInternalConnection("name=LazyConnectionTest"))
{
var x = connection.Connection;
Assert.True(connection.IsInitialized);
Assert.False(connection.ConnectionHasModel);
}
}
public void LazyInternalConnection_can_calculate_ConnectionHasModel_true_after_initializing()
{
using (var connection = new LazyInternalConnection("name=EntityConnectionString"))
{
var x = connection.Connection;
Assert.True(connection.IsInitialized);
Assert.True(connection.ConnectionHasModel);
}
}
public void Using_bad_connection_string_throws()
{
var expectedException = GenerateException(() => new SqlConnection("Step1=YouNeedToAsk?").Open());
using (var internalConnection = new LazyInternalConnection("Step1=YouNeedToAsk?"))
{
Assert.Equal(
expectedException.Message, Assert.Throws <ArgumentException>(() => { var _ = internalConnection.Connection; }).Message);
}
}
public void Full_name_of_context_is_found_in_app_config()
{
using (var internalConnection = new LazyInternalConnection("Couger35.Hubcap.FullNameDbContext"))
{
var connection = internalConnection.Connection;
Assert.Equal("FullNameInAppConfig", connection.Database);
Assert.IsType <SqlConnection>(connection);
}
}
public void Name_of_context_with_namespace_and_Context_stripped_is_not_found_in_app_config()
{
using (var internalConnection = new LazyInternalConnection("Couger35.Hubcap.ShortNameStrippedContext"))
{
var connection = internalConnection.Connection;
Assert.Equal("Couger35.Hubcap.ShortNameStrippedContext", connection.Database);
Assert.IsType <SqlConnection>(connection);
}
}
public void Default_IDbConnectionFactory_is_used_to_create_connection()
{
using (var internalConnection = new LazyInternalConnection("NameNotInAppConfig"))
{
var connection = internalConnection.Connection;
Assert.Equal("NameNotInAppConfig", connection.Database);
Assert.IsType <SqlConnection>(connection);
}
}
public void LazyInternalConnection_provider_name_calculated_when_connection_from_DbConnectionInfo()
{
using (
var connection =
new LazyInternalConnection(
new DbConnectionInfo("Data Source=ConnectionFromDbConnectionInfo.sdf", "System.Data.SqlServerCe.4.0")))
{
Assert.Equal("System.Data.SqlServerCe.4.0", connection.ProviderName);
}
}
public void Explicit_name_is_used_without_stripping_DbContext()
{
using (var internalConnection = new LazyInternalConnection("Couger35.Hubcap.NameForFactoryDbContext"))
{
var connection = internalConnection.Connection;
Assert.Equal("Couger35.Hubcap.NameForFactoryDbContext", connection.Database);
Assert.IsType <SqlConnection>(connection);
}
}
public void By_convention_name_does_not_have_DbContext_stripped()
{
using (var internalConnection = new LazyInternalConnection("Couger35.Hubcap.NameForFactoryDbContext"))
{
var connection = internalConnection.Connection;
Assert.Equal("Couger35.Hubcap.NameForFactoryDbContext", connection.Database);
Assert.IsType <SqlConnection>(connection);
}
}
public void Connection_created_from_hard_coded_connection_string_is_disposed_after_use()
{
var disposed = false;
using (var internalConnection = new LazyInternalConnection("Database=HardCodedConnectionString"))
{
var connection = internalConnection.Connection;
connection.Disposed += (_, __) => disposed = true;
}
Assert.True(disposed);
}
public void Connection_created_from_factory_is_disposed_after_use()
{
var disposed = false;
using (var internalConnection = new LazyInternalConnection("NameForFactory"))
{
var connection = internalConnection.Connection;
connection.Disposed += (_, __) => disposed = true;
}
Assert.True(disposed);
}