Consolidate LocalDbTestDatabase and SqlDeveloperTestDatabase

Resolve issue with multiple empties

src/Umbraco.Tests.Integration/Testing/TestDbMeta.cs

@@ -0,0 +1,39 @@
+using System.Text.RegularExpressions;
+
+namespace Umbraco.Tests.Integration.Testing
+{
+    public class TestDbMeta
+    {
+
+        public string Name { get; }
+
+        public bool IsEmpty { get; }
+
+        public string ConnectionString { get; set; }
+
+        private TestDbMeta(string name, bool isEmpty, string connectionString)
+        {
+            IsEmpty = isEmpty;
+            Name = name;
+            ConnectionString = connectionString;
+        }
+
+        private static string ConstructConnectionString(string masterConnectionString, string databaseName)
+        {
+            var prefix = Regex.Replace(masterConnectionString, "Database=.+?;", string.Empty);
+            var connectionString = $"{prefix};Database={databaseName};";
+            return connectionString.Replace(";;", ";");
+        }
+
+        public static TestDbMeta CreateWithMasterConnectionString(string name, bool isEmpty, string masterConnectionString)
+        {
+            return new TestDbMeta(name, isEmpty, ConstructConnectionString(masterConnectionString, name));
+        }
+
+        // LocalDb mdf funtimes
+        public static TestDbMeta CreateWithoutConnectionString(string name, bool isEmpty)
+        {
+            return new TestDbMeta(name, isEmpty, null);
+        }
+    }
+}