diff --git a/.travis.yml b/.travis.yml
index d323ce19..ee310428 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,9 +6,6 @@ php:
 
 matrix:
   include:
-    - php: 5.6
-      env: |
-        SYMFONY_VERSION=2.7.*
     - php: 5.6
       env: |
         SYMFONY_VERSION=2.8.*
diff --git a/Tests/Twig/DataGridExtensionFunctionalTest.php b/Tests/Twig/DataGridExtensionFunctionalTest.php
new file mode 100644
index 00000000..7f8a0c14
--- /dev/null
+++ b/Tests/Twig/DataGridExtensionFunctionalTest.php
@@ -0,0 +1,601 @@
+<?php
+
+namespace APY\DataGridBundle\Tests\Twig;
+
+use APY\DataGridBundle\Grid\Column\ArrayColumn;
+use APY\DataGridBundle\Grid\Column\BlankColumn;
+use APY\DataGridBundle\Grid\Column\BooleanColumn;
+use APY\DataGridBundle\Grid\Column\DateColumn;
+use APY\DataGridBundle\Grid\Column\DateTimeColumn;
+use APY\DataGridBundle\Grid\Column\JoinColumn;
+use APY\DataGridBundle\Grid\Column\NumberColumn;
+use APY\DataGridBundle\Grid\Column\RankColumn;
+use APY\DataGridBundle\Grid\Column\TimeColumn;
+use APY\DataGridBundle\Grid\Grid;
+use APY\DataGridBundle\Grid\Row;
+use APY\DataGridBundle\Twig\DataGridExtension;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+
+/**
+ * @author Pierre-Louis FORT
+ */
+class DataGridExtensionFunctionalTest extends KernelTestCase
+{
+    /**
+     * @var DataGridExtension
+     */
+    private $extension;
+
+    /**
+     * @var \Twig_Environment
+     */
+    private $twig;
+
+
+    public function setUp()
+    {
+        ini_set('intl.default_locale', 'en-US');
+        $kernel = self::createKernel(['debug' => true]);
+        $kernel->boot();
+        $this->extension = $kernel->getContainer()->get('grid.twig_extension');
+        $this->twig = $kernel->getContainer()->get('twig');
+    }
+
+
+    protected function getMockGridAndInit($id, $hash, $theme = null)
+    {
+        $grid = $this->getMockBuilder(Grid::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $grid->expects($this->any())
+            ->method('getHash')
+            ->willReturn($hash);
+        $grid->expects($this->any())
+            ->method('getId')
+            ->willReturn($id);
+        $this->extension->initGrid($grid, $theme);
+
+        return $grid;
+    }
+
+    public function testRenderCellArrayColumn()
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new ArrayColumn();
+        $column->setId('array_col');
+        $row = new Row();
+        $row->setField('array_col', ['foo', 'bar', 'foo_bar']);
+        $this->assertRegExp(
+            '#foo\s+\<br /\>\s*bar\s+\<br /\>\s*foo_bar#',
+            $this->extension->getGridCell($this->twig, $column, $row, $grid)
+        );
+    }
+
+    public function arrayColumnCustomCellProvider()
+    {
+        //grid id, column id, theme, expected
+        return [
+
+            // grid_column_%column_id%_cell
+            [
+                '',
+                'myarraycolid',
+                'theme_column_id.html.twig',
+                'grid_column_myarraycolid_cell'
+            ],
+            // grid_%id%_column_%column_id%_cell
+            [
+                'mygridid',
+                'myarraycolid',
+                'theme_column_id.html.twig',
+                'grid_mygridid_column_myarraycolid_cell'
+            ],
+
+            // grid_column_id_%column_id%_cell
+            [
+                '',
+                'myarraycolid',
+                'theme_column_id_colid.html.twig',
+                'grid_column_id_myarraycolid_cell'
+            ],
+            // grid_%id%_column_id_%column_id%_cell
+            [
+                'mygridid',
+                'myarraycolid',
+                'theme_column_id_colid.html.twig',
+                'grid_mygridid_column_id_myarraycolid_cell'
+            ],
+
+            // grid_column_%column_type%_cell
+            [
+                '',
+                'myarraycolid',
+                'theme_column_type.html.twig',
+                'grid_column_array_cell'
+            ],
+            // grid_%id%_column_%column_type%_cell
+            [
+                'mygridid',
+                'myarraycolid',
+                'theme_column_type.html.twig',
+                'grid_mygridid_column_array_cell'
+            ],
+            // grid_column_type_%column_type%_cell
+            [
+                '',
+                'myarraycolid',
+                'theme_column_type_coltype.html.twig',
+                'grid_column_type_array_cell'
+            ],
+            // grid_%id%_column_type_%column_type%_cell
+            [
+                'mygridid',
+                'myarraycolid',
+                'theme_column_type_coltype.html.twig',
+                'grid_mygridid_column_type_array_cell'
+            ],
+        ];
+    }
+
+
+    /**
+     * @dataProvider arrayColumnCustomCellProvider
+     */
+    public function testRenderCellArrayColumnCustomCell($gridId, $colId, $theme, $expected)
+    {
+        $grid = $this->getMockGridAndInit($gridId, 'GRID_HASH', $theme);
+
+        $column = new ArrayColumn();
+        $column->setId($colId);
+        $row = new Row();
+        $row->setField($colId, ['foo', 'bar', 'foo_bar']);
+        $this->assertEquals(
+            $expected,
+            $this->extension->getGridCell($this->twig, $column, $row, $grid)
+        );
+    }
+
+    public function testRenderCellBlankColumn()
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new BlankColumn(
+            [
+                'id' => 'blank_col'
+            ]
+        );
+        $this->assertEquals(
+            '',
+            $this->extension->getGridCell($this->twig, $column, new Row(), $grid)
+        );
+    }
+
+    public function testRenderCellBooleanColumn()
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new BooleanColumn(
+            [
+                'id' => 'bool_col'
+            ]
+        );
+        $row = new Row();
+        $row->setField('bool_col', true);
+        $this->assertEquals(
+            '<span class="grid_boolean_true" title="true">true</span>',
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+        $row->setField('bool_col', false);
+        $this->assertEquals(
+            '<span class="grid_boolean_false" title="false">false</span>',
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+    }
+
+    public function testRenderCellDateColumnNoFormat()
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new DateColumn(
+            [
+                'id' => 'date_col',
+                'timezone' => "Europe/Paris"
+            ]
+        );
+        $row = new Row();
+        $row->setField('date_col', new \DateTime('2017-02-02 23:00:00'));
+
+        $this->assertEquals(
+            'Feb 3, 2017',
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+
+    public function dateColumnProvider()
+    {
+        return [
+            [null, null, new \DateTime('2017-02-02 23:00:00'), 'Feb 2, 2017'],
+            ['d/m/Y', null, new \DateTime('2017-02-02 23:00:00'), '02/02/2017'],
+            [null, 'Europe/Paris', new \DateTime('2017-02-02 23:00:00'), 'Feb 3, 2017'],
+            ['d/m/Y', 'Europe/Paris', new \DateTime('2017-02-02 23:00:00'), '03/02/2017']
+        ];
+    }
+
+
+    /**
+     * @dataProvider dateColumnProvider
+     */
+    public function testRenderCellDateColumn($format, $timezone, $date, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new DateColumn(
+            [
+                'id' => 'date_col',
+                'format' => $format,
+                'timezone' => $timezone
+            ]
+        );
+        $row = new Row();
+        $row->setField('date_col', $date);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+    public function dateTimeColumnProvider()
+    {
+        return [
+            [null, null, new \DateTime('2017-02-02 23:00:00'), 'Feb 2, 2017, 11:00:00 PM'],
+            ['d/m/Y H:i:s', null, new \DateTime('2017-02-02 23:00:00'), '02/02/2017 23:00:00'],
+            [null, 'Europe/Paris', new \DateTime('2017-02-02 23:00:00'), 'Feb 3, 2017, 12:00:00 AM'],
+            ['d/m/Y H:i:s', 'Europe/Paris', new \DateTime('2017-02-02 23:00:00'), '03/02/2017 00:00:00']
+        ];
+    }
+
+    /**
+     * @dataProvider dateTimeColumnProvider
+     */
+    public function testRenderCellDateTimeColumn($format, $timezone, $date, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new DateTimeColumn(
+            [
+                'id' => 'datetime_col',
+                'format' => $format,
+                'timezone' => $timezone
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('datetime_col', $date);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+    public function timeColumnProvider()
+    {
+        return [
+            [null, null, new \DateTime('2017-02-02 23:00:00'), '11:00:00 PM'],
+            ['H:i:s', null, new \DateTime('2017-02-02 23:00:00'), '23:00:00'],
+            [null, 'Europe/Paris', new \DateTime('2017-02-02 23:00:00'), '12:00:00 AM'],
+            ['H:i:s', 'Europe/Paris', new \DateTime('2017-02-02 23:00:00'), '00:00:00']
+        ];
+    }
+
+    /**
+     * @dataProvider timeColumnProvider
+     */
+    public function testRenderCellTimeColumn($format, $timezone, $date, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new TimeColumn(
+            [
+                'id' => 'time_col',
+                'format' => $format,
+                'timezone' => $timezone
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('time_col', $date);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+
+    public function numberColumnDecimalProvider()
+    {
+        return [
+            [null, null, 1, false, 1234.55, '1234.6'],
+            ['fr_FR', null, 1, false, 1234.54, '1234,5'],
+            ['fr_FR', null, 1, true, 1234.55, '1 234,6'],
+
+            ['fr_FR', \NumberFormatter::ROUND_CEILING, 1, false, 1234.68, '1234,7'],
+            ['fr_FR', \NumberFormatter::ROUND_CEILING, 1, true, 1234.53, '1 234,6'],
+            ['fr_FR', \NumberFormatter::ROUND_CEILING, 1, true, -1234.58, '-1 234,5'],
+            ['fr_FR', \NumberFormatter::ROUND_FLOOR, 1, false, 1234.58, '1234,5'],
+            ['fr_FR', \NumberFormatter::ROUND_FLOOR, 1, false, -1234.58, '-1234,6'],
+            ['fr_FR', \NumberFormatter::ROUND_DOWN, 3, false, 0.5673, '0,567'],
+            ['fr_FR', \NumberFormatter::ROUND_DOWN, 3, false, -0.5678, '-0,567'],
+            ['fr_FR', \NumberFormatter::ROUND_HALFDOWN, 0, false, 1234.51, '1235'],
+            ['fr_FR', \NumberFormatter::ROUND_HALFDOWN, 0, false, 1234.5, '1234'],
+            ['fr_FR', \NumberFormatter::ROUND_HALFUP, 0, false, 1234.49, '1234'],
+            ['fr_FR', \NumberFormatter::ROUND_HALFUP, 0, false, 1234.5, '1235'],
+            ['fr_FR', \NumberFormatter::ROUND_HALFEVEN, 0, false, 1234.5, '1234'],
+            ['fr_FR', \NumberFormatter::ROUND_HALFEVEN, 0, false, 1234.56, '1235'],
+        ];
+    }
+
+    /**
+     * @dataProvider numberColumnDecimalProvider
+     */
+    public function testRenderCellNumberColumnDecimal($locale, $roundingMode, $precision, $grouping, $number, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new NumberColumn(
+            [
+                'id' => 'number_col',
+                'locale' => $locale,
+                'style' => 'decimal',
+                'roundingMode' => $roundingMode,
+                'precision' => $precision,
+                'grouping' => $grouping
+
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('number_col', $number);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+    }
+
+    public function numberColumnCurrencyProvider()
+    {
+        return [
+            [null, 1, false, 1234.55, '$1234.6'],
+            ['fr_FR', 0, false, 1234.54, '1235 €'],
+            ['fr_FR', 1, true, 1234.55, '1 234,6 €'],
+        ];
+    }
+
+    /**
+     * @dataProvider numberColumnCurrencyProvider
+     */
+    public function testRenderCellNumberCurrencyColumn($locale, $precision, $grouping, $number, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new NumberColumn(
+            [
+                'id' => 'number_col',
+                'locale' => $locale,
+                'style' => 'currency',
+                'precision' => $precision,
+                'grouping' => $grouping
+
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('number_col', $number);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+    /**
+     * @dataProvider numberColumnCurrencyProvider
+     */
+    public function testRenderCellNumberMoneyColumn($locale, $precision, $grouping, $number, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new NumberColumn(
+            [
+                'id' => 'number_col',
+                'locale' => $locale,
+                'style' => 'money',
+                'precision' => $precision,
+                'grouping' => $grouping
+
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('number_col', $number);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+
+    public function numberColumnPercentProvider()
+    {
+        return [
+            [null, 1, false, false, 1234.55, '1234.6%'],
+            ['fr_FR', 0, false, false, 1234.54, '1235 %'],
+            ['fr_FR', 1, true, false, 1234.55, '1 234,6 %'],
+            ['fr_FR', 1, true, true, 0.5567, '55,7 %'],
+        ];
+    }
+
+    /**
+     * @dataProvider numberColumnPercentProvider
+     */
+    public function testRenderCellNumberPercentColumn($locale, $precision, $grouping, $fractional, $number, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new NumberColumn(
+            [
+                'id' => 'number_col',
+                'locale' => $locale,
+                'style' => 'percent',
+                'precision' => $precision,
+                'grouping' => $grouping,
+                'fractional' => $fractional
+
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('number_col', $number);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+
+    public function numberColumnDurationProvider()
+    {
+        return [
+
+            [null, false, 59, '59 sec.'],
+            [null, false, 0.8, '1 sec.'],
+            [null, false, 61, '1:01'],
+            ['fr_FR', false, 3601, '1:00:01'],
+        ];
+    }
+
+    /**
+     * @dataProvider numberColumnDurationProvider
+     */
+    public function testRenderCellNumberDurationColumn($locale, $grouping, $number, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new NumberColumn(
+            [
+                'id' => 'number_col',
+                'locale' => $locale,
+                'style' => 'duration',
+                'grouping' => $grouping,
+
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('number_col', $number);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+
+    public function numberColumnSpellOutProvider()
+    {
+        return [
+
+            [null, 2, true, 1234.543, 'one thousand two hundred thirty-four point five four three'],
+            ['fr_FR', 1, false, 1234.543, 'mille deux cent trente-quatre virgule cinq quatre trois'],
+        ];
+    }
+
+    /**
+     * @dataProvider numberColumnSpellOutProvider
+     */
+    public function testRenderCellNumberSpellOutColumn($locale, $precision, $grouping, $number, $expected)
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new NumberColumn(
+            [
+                'id' => 'number_col',
+                'locale' => $locale,
+                'precision' => $precision,
+                'style' => 'spellout',
+                'grouping' => $grouping,
+
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('number_col', $number);
+
+        $this->assertEquals(
+            $expected,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+
+    public function testRenderCellNumberRankColumn()
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new RankColumn();
+        $row = new Row();
+
+        $this->assertEquals(
+            1,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+        $this->assertEquals(
+            2,
+            trim($this->extension->getGridCell($this->twig, $column, $row, $grid))
+        );
+
+    }
+
+    public function testRenderCellJoinColumn()
+    {
+        $grid = $this->getMockGridAndInit('', 'GRID_HASH');
+
+        $column = new JoinColumn(
+            [
+                'id' => 'join_col',
+                'columns' => ['text_col1', 'text_col2'],
+                'separator' => '-'
+            ]
+        );
+
+        $row = new Row();
+        $row->setField('text_col1', 'text_col1_value');
+        $row->setField('text_col2', 'text_col2_value');
+
+        $this->assertRegExp(
+            '/\s*text_col1_value-\s*text_col2_value-/',
+            $this->extension->getGridCell($this->twig, $column, $row, $grid)
+        );
+
+
+    }
+
+}
diff --git a/Tests/app/AppKernel.php b/Tests/app/AppKernel.php
new file mode 100644
index 00000000..643302da
--- /dev/null
+++ b/Tests/app/AppKernel.php
@@ -0,0 +1,65 @@
+<?php
+
+use Symfony\Component\HttpKernel\Kernel;
+use Symfony\Component\Config\Loader\LoaderInterface;
+
+class AppKernel extends Kernel
+{
+
+    public function registerBundles()
+    {
+        return array(
+            new Symfony\Bundle\FrameworkBundle\FrameworkBundle(),
+            new Symfony\Bundle\TwigBundle\TwigBundle(),
+            new \APY\DataGridBundle\APYDataGridBundle()
+        );
+    }
+
+    public function registerContainerConfiguration(LoaderInterface $loader)
+    {
+
+        $loader->load(__DIR__.'/config_test.yml');
+    }
+
+    /**
+     * @return string
+     */
+    public function getCacheDir()
+    {
+        $cacheDir = sys_get_temp_dir().'/cache';
+        if (!is_dir($cacheDir)) {
+            mkdir($cacheDir, 0777, true);
+        }
+
+        return $cacheDir;
+    }
+
+    /**
+     * @return string
+     */
+    public function getLogDir()
+    {
+        $logDir = sys_get_temp_dir().'/logs';
+        if (!is_dir($logDir)) {
+            mkdir($logDir, 0777, true);
+        }
+
+        return $logDir;
+    }
+
+    protected function build(\Symfony\Component\DependencyInjection\ContainerBuilder $container)
+    {
+        $container->addCompilerPass(
+            new \APY\DataGridBundle\Tests\app\CompilerPass(),
+            \Symfony\Component\DependencyInjection\Compiler\PassConfig::TYPE_BEFORE_OPTIMIZATION
+        );
+    }
+
+    protected function prepareContainer(\Symfony\Component\DependencyInjection\ContainerBuilder $container)
+    {
+        parent::prepareContainer($container);
+        if(self::VERSION < 30300) {
+            $this->build($container);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Tests/app/CompilerPass.php b/Tests/app/CompilerPass.php
new file mode 100644
index 00000000..bd664ac5
--- /dev/null
+++ b/Tests/app/CompilerPass.php
@@ -0,0 +1,17 @@
+<?php
+namespace APY\DataGridBundle\Tests\app;
+
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+class CompilerPass implements CompilerPassInterface
+{
+
+    /**
+     * @param ContainerBuilder $container
+     */
+    public function process(ContainerBuilder $container)
+    {
+        $container->getDefinition('grid.twig_extension')->setPublic(true);
+    }
+}
\ No newline at end of file
diff --git a/Tests/app/Resources/views/theme_column_id.html.twig b/Tests/app/Resources/views/theme_column_id.html.twig
new file mode 100644
index 00000000..63582410
--- /dev/null
+++ b/Tests/app/Resources/views/theme_column_id.html.twig
@@ -0,0 +1,27 @@
+{#  grid_%gridid%_column_ #}
+{%- block grid_mygridid_column_myarraycolid_cell -%}
+    grid_mygridid_column_myarraycolid_cell
+{%- endblock -%}
+
+{%- block grid_mygridid_column_array_cell -%}
+    should_not_be_used
+{%- endblock -%}
+
+{%- block grid_mygridid_column_id_myarraycolid_cell -%}
+    should_not_be_used
+{%- endblock -%}
+
+{#  grid_column_ #}
+{%- block grid_column_myarraycolid_cell -%}
+    grid_column_myarraycolid_cell
+{%- endblock -%}
+
+{%- block grid_column_array_cell -%}
+    should_not_be_used
+{%- endblock -%}
+
+{%- block grid_column_id_myarraycolid_cell -%}
+    should_not_be_used
+{%- endblock -%}
+
+
diff --git a/Tests/app/Resources/views/theme_column_id_colid.html.twig b/Tests/app/Resources/views/theme_column_id_colid.html.twig
new file mode 100644
index 00000000..c3c06e03
--- /dev/null
+++ b/Tests/app/Resources/views/theme_column_id_colid.html.twig
@@ -0,0 +1,15 @@
+{%- block grid_mygridid_column_id_myarraycolid_cell -%}
+    grid_mygridid_column_id_myarraycolid_cell
+{%- endblock -%}
+
+{%- block grid_mygridid_column_type_array_cell -%}
+    should_not_be_used
+{%- endblock -%}
+
+
+{%- block grid_column_id_myarraycolid_cell -%}
+    grid_column_id_myarraycolid_cell
+{%- endblock -%}
+{%- block grid_column_type_array_cell -%}
+    should_not_be_used
+{%- endblock -%}
\ No newline at end of file
diff --git a/Tests/app/Resources/views/theme_column_type.html.twig b/Tests/app/Resources/views/theme_column_type.html.twig
new file mode 100644
index 00000000..55341f05
--- /dev/null
+++ b/Tests/app/Resources/views/theme_column_type.html.twig
@@ -0,0 +1,18 @@
+{# start ArrayColumn#}
+{%- block grid_column_array_cell -%}
+    grid_column_array_cell
+{%- endblock -%}
+
+{%- block grid_mygridid_column_array_cell -%}
+    grid_mygridid_column_array_cell
+{%- endblock -%}
+
+
+{%- block grid_column_id_myarraycolid_cell -%}
+    should_not_be_used
+{%- endblock -%}
+
+{%- block grid_mygridid_column_id_myarraycolid_cell -%}
+    should_not_be_used
+{%- endblock -%}
+{# end ArrayColumn#}
\ No newline at end of file
diff --git a/Tests/app/Resources/views/theme_column_type_coltype.html.twig b/Tests/app/Resources/views/theme_column_type_coltype.html.twig
new file mode 100644
index 00000000..d40d2a07
--- /dev/null
+++ b/Tests/app/Resources/views/theme_column_type_coltype.html.twig
@@ -0,0 +1,7 @@
+{%- block grid_column_type_array_cell -%}
+    grid_column_type_array_cell
+{%- endblock -%}
+
+{%- block grid_mygridid_column_type_array_cell -%}
+    grid_mygridid_column_type_array_cell
+{%- endblock -%}
diff --git a/Tests/app/config_test.yml b/Tests/app/config_test.yml
new file mode 100644
index 00000000..a35d24c7
--- /dev/null
+++ b/Tests/app/config_test.yml
@@ -0,0 +1,12 @@
+framework:
+    secret: "secret"
+    router:
+      resource: "%kernel.root_dir%/routing.yml"
+    form: ~
+
+twig:
+    paths:
+        '%kernel.root_dir%/../../Resources/views': APYDataGridBundle
+
+apy_data_grid:
+  theme: '@APYDataGridBundle/blocks.html.twig'
\ No newline at end of file
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index a12d102f..9885edb0 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -6,6 +6,9 @@
             <directory suffix="Test.php">./Tests</directory>
         </testsuite>
     </testsuites>
+    <php>
+        <server name="KERNEL_DIR" value="./Tests/app" />
+    </php>
     <filter>
         <whitelist>
             <directory>./</directory>