Server improves:

* Server: improved messages on register/reset dialogs;
* Tests: added database compatible tests on new code or libs (auth db);

Mage.Tests/src/test/java/org/mage/test/serverside/DatabaseCompatibleTest.java

@@ -0,0 +1,66 @@
+package org.mage.test.serverside;
+
+import mage.server.AuthorizedUser;
+import mage.server.AuthorizedUserRepository;
+import org.junit.Assert;
+import org.junit.Ignore;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+/**
+ * Testing database compatible on new libs or updates.
+ *
+ * @author JayDi85
+ */
+public class DatabaseCompatibleTest {
+
+    private final String JDBC_URL = "jdbc:h2:file:%s;AUTO_SERVER=TRUE";
+
+    @Rule
+    public TemporaryFolder tempFolder = new TemporaryFolder();
+
+    @Test
+    public void test_AuthUsers() {
+        try {
+            // prepare test db
+            String dbDir = tempFolder.newFolder().getAbsolutePath();
+            String dbName = "users-db-sample.h2";
+            String dbFullName = Paths.get(dbDir, dbName).toAbsolutePath().toString();
+            String dbFullFileName = dbFullName + ".mv.db";
+            Files.copy(
+                    Paths.get("src", "test", "data", dbName + ".mv.db"),
+                    Paths.get(dbFullFileName)
+            );
+            Assert.assertTrue(Files.exists(Paths.get(dbFullFileName)));
+
+            AuthorizedUserRepository dbUsers = new AuthorizedUserRepository(
+                    String.format(JDBC_URL, dbFullName)
+            );
+
+            // search
+            Assert.assertNotNull(dbUsers.getByName("user1"));
+            Assert.assertNotNull(dbUsers.getByEmail("user2@example.com"));
+            Assert.assertNull(dbUsers.getByName("userFAIL"));
+
+            // login
+            AuthorizedUser user = dbUsers.getByName("user3");
+            Assert.assertEquals("user name", user.getName(), "user3");
+            Assert.assertTrue("user pas", user.doCredentialsMatch("user3", "pas3"));
+            Assert.assertFalse("user wrong pas", user.doCredentialsMatch("user3", "123"));
+            Assert.assertFalse("user empty pas", user.doCredentialsMatch("user3", ""));
+        } catch (IOException e) {
+            e.printStackTrace();
+            Assert.fail(e.getMessage());
+        }
+    }
+
+    @Test
+    @Ignore // TODO: add records/stats db compatible test
+    public void test_Records() {
+    }
+}