Support Unicode in Firebird tests

Author: fredericDelaporte

lib/teamcity/firebird/firebird_installation.txt

@@ -23,9 +23,10 @@ UserManager = Srp
 WireCrypt = Enabled
 11. Restart Firebird service.
 
-For manual testing, take care of not creating it with inadequate acl on the file. This may happen
-if you use ISQL with a connection string causing it to create it in embedded mode, without actually
-using the server. Prefixing your path with "localhost:" should avoid that.
+For manual testing, take care of not creating the NHibernate database with inadequate acl on the file.
+This may happen if you use ISQL with a connection string causing it to create it in embedded mode,
+without actually using the server. Prefixing your path with "localhost:" should avoid that.
+Due to test constraints, make sure you create the database with a 16384 page size.
 
 For tests performances, and since it is just an expandable test database, better disable forced writes.
 Since those tests drop/create schema constantly, they are quite heavy on writes and this single setting
@@ -35,4 +36,6 @@ b.  From Firebird installation folder, run:
 gfix -w async nhibernate -user SYSDBA
     (Change "nhibernate" to your own alias or path as appropriate for your setup) 
 c.  Restart Firebird service.
-Note that the TestDatabaseSetup will drop and recreate the database when run, with forced writes disabled.
+Note that the TestDatabaseSetup will drop and recreate the database when run, with forced writes disabled
+and with a 16384 page size. So you may consider running the TestDatabaseSetup test instead for creating the
+NHibernate database.

src/NHibernate.Config.Templates/FireBird.cfg.xml

@@ -22,6 +22,7 @@ for your own use before compile tests in VisualStudio.
 			Database=nhibernate;
 			User ID=SYSDBA;Password=masterkey;
 			MaxPoolSize=200;
+			charset=utf8;
 		</property>
 		<property name="show_sql">false</property>
 		<property name="dialect">NHibernate.Dialect.FirebirdDialect</property>

src/NHibernate.TestDatabaseSetup/TestDatabaseSetup.cs

@@ -112,7 +112,10 @@ private static void SetupFirebird(Cfg.Configuration cfg)
 			{
 				Console.WriteLine(e);
 			}
-			FbConnection.CreateDatabase(connStr, forcedWrites:false);
+			// With UTF8 charset, string takes up to four times as many space, causing the
+			// default page-size of 4096 to no more be enough for index key sizes. (Index key
+			// size is limited to a quarter of the page size.)
+			FbConnection.CreateDatabase(connStr, pageSize:16384, forcedWrites:false);
 		}
 
 		private static void SetupSqlServerCe(Cfg.Configuration cfg)

teamcity.build

@@ -76,14 +76,14 @@
 	<target name="setup-teamcity-firebird32">
 		<property name="nhibernate.connection.driver_class"			value="NHibernate.Driver.FirebirdClientDriver" />
 		<property name="nhibernate.dialect"							value="NHibernate.Dialect.FirebirdDialect" />
-		<property name="nhibernate.connection.connection_string"	value="DataSource=localhost;Database=nhibernate;User ID=SYSDBA;Password=masterkey;MaxPoolSize=200;" />
+		<property name="nhibernate.connection.connection_string"	value="DataSource=localhost;Database=nhibernate;User ID=SYSDBA;Password=masterkey;MaxPoolSize=200;charset=utf8;" />
 	</target>
 
 	<target name="setup-teamcity-firebird64">
 		<property name="nunit-x64" value="true" />
 		<property name="nhibernate.connection.driver_class"			value="NHibernate.Driver.FirebirdClientDriver" />
 		<property name="nhibernate.dialect"							value="NHibernate.Dialect.FirebirdDialect" />
-		<property name="nhibernate.connection.connection_string"	value="DataSource=localhost;Database=nhibernate;User ID=SYSDBA;Password=masterkey;MaxPoolSize=200;" />
+		<property name="nhibernate.connection.connection_string"	value="DataSource=localhost;Database=nhibernate;User ID=SYSDBA;Password=masterkey;MaxPoolSize=200;charset=utf8;" />
 	</target>
 
 	<target name="setup-teamcity-sqlite32">