Simplify TestDb ctor

Author: gtbX

tests/DateTimeTest.cs

@@ -43,7 +43,7 @@ public void AsStrings ()
 		[TestCase("MMM'-'dd'-'yyyy' 'HH':'mm':'ss'.'fffffff")]
 		public void AsCustomStrings (string format)
 		{
-			var db = new TestDb (false, format);
+			var db = new TestDb (CustomDateTimeString (format));
 			TestDateTime (db);
 		}
 
@@ -65,10 +65,12 @@ public void AsyncAsString ()
 		[TestCase("MMM'-'dd'-'yyyy' 'HH':'mm':'ss'.'fffffff")]
 		public void AsyncAsCustomStrings (string format)
 		{
-			var db = new SQLiteAsyncConnection (new SQLiteConnectionString (TestPath.GetTempFileName (), false, dateTimeStringFormat: format));
+			var db = new SQLiteAsyncConnection (CustomDateTimeString (format));
 			TestAsyncDateTime (db);
 		}
 
+		SQLiteConnectionString CustomDateTimeString (string dateTimeFormat) => new SQLiteConnectionString (TestPath.GetTempFileName (), false, dateTimeFormat);
+
 		void TestAsyncDateTime (SQLiteAsyncConnection db)
 		{
 			db.CreateTableAsync<TestObj> ().Wait ();

tests/TestDb.cs

@@ -60,7 +60,7 @@ public TestDb (bool storeDateTimeAsTicks = true, object key = null, bool wal = t
 				EnableWriteAheadLogging ();
 		}
 
-		public TestDb (bool storeDateTimeAsTicks, string dateTimeFormat, bool wal = true) : base (new SQLiteConnectionString (TestPath.GetTempFileName (), storeDateTimeAsTicks, dateTimeStringFormat: dateTimeFormat))
+		public TestDb (SQLiteConnectionString connectionString, bool wal = true) : base (connectionString)
 		{
 			Trace = true;
 			if (wal)