diff --git a/src/Adapter/Doctrine/Event/ORMAdapterQueryEvent.php b/src/Adapter/Doctrine/Event/ORMAdapterQueryEvent.php
index 08d86db2..5a6fe3ac 100644
--- a/src/Adapter/Doctrine/Event/ORMAdapterQueryEvent.php
+++ b/src/Adapter/Doctrine/Event/ORMAdapterQueryEvent.php
@@ -20,12 +20,8 @@
  */
 class ORMAdapterQueryEvent extends Event
 {
-    /** @var Query */
-    protected $query;
+    protected Query $query;
 
-    /**
-     * ORMAdapterQueryEvent constructor.
-     */
     public function __construct(Query $query)
     {
         $this->query = $query;
diff --git a/src/Column/DateTimeColumn.php b/src/Column/DateTimeColumn.php
index 2ddde89f..aa839c11 100644
--- a/src/Column/DateTimeColumn.php
+++ b/src/Column/DateTimeColumn.php
@@ -34,7 +34,7 @@ public function normalize(mixed $value): mixed
                     if (false === ($errors = \DateTime::getLastErrors())) {
                         throw new \LogicException('DateTime conversion failed for unknown reasons');
                     }
-                    throw new \Exception(implode(', ', $errors['errors'] ?: $errors['warnings']));
+                    throw new \RuntimeException(implode(', ', $errors['errors'] ?: $errors['warnings']));
                 }
             } else {
                 $value = new \DateTime((string) $value);
diff --git a/tests/Unit/ColumnTest.php b/tests/Unit/ColumnTest.php
index 1af4c9c9..43ba5157 100644
--- a/tests/Unit/ColumnTest.php
+++ b/tests/Unit/ColumnTest.php
@@ -43,6 +43,14 @@ public function testDateTimeColumn(): void
 
         $this->assertSame('03-04-2015', $column->transform('2015-04-03'));
         $this->assertSame('foo', $column->transform(null));
+
+        $column->initialize('test', 1, [
+            'createFromFormat' => 'foo',
+        ], $this->createDataTable()->setName('foo'));
+
+        $this->expectException(\RuntimeException::class);
+        $this->expectExceptionMessage('format separator does not match');
+        $column->transform('2015-04-03');
     }
 
     public function testDateTimeColumnWithCreateFromFormat(): void
@@ -118,6 +126,9 @@ public function testNumberColumn(): void
         $this->assertFalse($column->isRaw());
         $this->assertTrue($column->isValidForSearch(684));
         $this->assertFalse($column->isValidForSearch('foo.bar'));
+
+        // Forced conversion failure
+        $this->assertSame('0', $column->normalize('foo'));
     }
 
     public function testColumnWithClosures(): void
@@ -136,6 +147,33 @@ public function testColumnWithClosures(): void
         $this->assertSame('BAR', $column->transform(null));
     }
 
+    public function testLeftRightExprColumns(): void
+    {
+        $column = new TextColumn();
+        $column->initialize('test', 1, [
+            'leftExpr' => 'foo',
+            'rightExpr' => 'bar',
+        ], $this->createDataTable());
+
+        $this->assertSame('foo', $column->getLeftExpr());
+        $this->assertSame('bar', $column->getRightExpr('fud'));
+
+        $column->initialize('test', 1, [
+            'field' => 'foo',
+            'leftExpr' => fn (string $field) => $field . 'bar',
+            'rightExpr' => fn (string $field) => $field . 'baz',
+        ], $this->createDataTable());
+
+        $this->assertSame('foobar', $column->getLeftExpr());
+        $this->assertSame('fudbaz', $column->getRightExpr('fud'));
+
+        $column->initialize('test', 1, [
+            'rightExpr' => null,
+        ], $this->createDataTable());
+
+        $this->assertSame('foo', $column->getRightExpr('foo'));
+    }
+
     public function testTwigDependencyDetection(): void
     {
         $this->expectException(MissingDependencyException::class);
diff --git a/tests/Unit/DataTableTest.php b/tests/Unit/DataTableTest.php
index dcc11b4e..7b7a481e 100644
--- a/tests/Unit/DataTableTest.php
+++ b/tests/Unit/DataTableTest.php
@@ -106,6 +106,9 @@ public function testDataTableState(): void
 
         $this->assertSame(0, $state->getStart());
         $this->assertNull($state->getLength());
+
+        $column = $datatable->getColumn(0);
+        $this->assertSame($state, $column->getState());
     }
 
     public function testPostMethod(): void