@@ -71,14 +71,14 @@ private function getColumnIcon(string $key): string
     private function getDisplayName(array $item): string
     {
         $retval = $item['name'];
-        $flag = 0;
+        $isFirst = true;
         foreach ($item as $key => $value) {
             if (empty($value) || $key === 'name') {
                 continue;
             }
 
-            $flag == 0 ? $retval .= ' (' : $retval .= ', ';
-            $flag = 1;
+            $isFirst ? $retval .= ' (' : $retval .= ', ';
+            $isFirst = false;
             $retval .= $this->getTruncateValue($key, $value);
         }
 
 
@@ -7546,9 +7546,6 @@
     <PossiblyNullPropertyFetch>
       <code><![CDATA[$this->parent->children]]></code>
     </PossiblyNullPropertyFetch>
-    <PossiblyUnusedProperty>
-      <code>$displayName</code>
-    </PossiblyUnusedProperty>
     <RedundantCastGivenDocblockType>
       <code>(string) $prefix</code>
     </RedundantCastGivenDocblockType>
 
@@ -4,28 +4,31 @@
 
 namespace PhpMyAdmin\Tests\Navigation\Nodes;
 
+use PhpMyAdmin\Navigation\Nodes\Node;
 use PhpMyAdmin\Navigation\Nodes\NodeColumn;
 use PhpMyAdmin\Tests\AbstractTestCase;
 use PHPUnit\Framework\Attributes\CoversClass;
 
 #[CoversClass(NodeColumn::class)]
-class NodeColumnTest extends AbstractTestCase
+final class NodeColumnTest extends AbstractTestCase
 {
-    /**
-     * SetUp for test cases
-     */
-    protected function setUp(): void
+    public function testColumnNode(): void
     {
-        parent::setUp();
-
         $GLOBALS['dbi'] = $this->createDatabaseInterface();
-        $GLOBALS['server'] = 0;
-    }
 
-    public function testConstructor(): void
-    {
-        $parent = new NodeColumn(['name' => 'name', 'key' => 'key']);
-        $this->assertEquals(
+        $nodeColumn = new NodeColumn([
+            'name' => 'actor_id',
+            'key' => 'PRI',
+            'type' => 'smallint',
+            'default' => null,
+            'nullable' => '',
+        ]);
+        $this->assertSame('actor_id', $nodeColumn->name);
+        $this->assertSame(Node::OBJECT, $nodeColumn->type);
+        $this->assertFalse($nodeColumn->isGroup);
+        $this->assertSame('actor_id (PRI, smallint)', $nodeColumn->displayName);
+        $this->assertSame(['image' => 'b_primary', 'title' => 'Column'], $nodeColumn->icon);
+        $this->assertSame(
             [
                 'text' => [
                     'route' => '/table/structure/change',
@@ -37,7 +40,53 @@ public function testConstructor(): void
                 ],
                 'title' => 'Structure',
             ],
-            $parent->links,
+            $nodeColumn->links,
         );
+        $this->assertSame('field', $nodeColumn->urlParamName);
+    }
+
+    public function testColumnNodeWithTruncatedDefaultValue(): void
+    {
+        $GLOBALS['dbi'] = $this->createDatabaseInterface();
+
+        $nodeColumn = new NodeColumn([
+            'name' => 'last_update',
+            'key' => '',
+            'type' => 'timestamp',
+            'default' => 'current_timestamp()',
+            'nullable' => '',
+        ]);
+        $this->assertSame('last_update (timestamp, curren...)', $nodeColumn->displayName);
+        $this->assertSame(['image' => 'pause', 'title' => 'Column'], $nodeColumn->icon);
+    }
+
+    public function testColumnNodeWithTruncatedDefaultValue2(): void
+    {
+        $GLOBALS['dbi'] = $this->createDatabaseInterface();
+
+        $nodeColumn = new NodeColumn([
+            'name' => 'email',
+            'key' => 'UNI',
+            'type' => 'varchar',
+            'default' => 'default',
+            'nullable' => 'nullable',
+        ]);
+        $this->assertSame('email (UNI, varchar, defaul..., nullable)', $nodeColumn->displayName);
+        $this->assertSame(['image' => 'bd_primary', 'title' => 'Column'], $nodeColumn->icon);
+    }
+
+    public function testColumnNodeWithoutTruncatedDefaultValue(): void
+    {
+        $GLOBALS['dbi'] = $this->createDatabaseInterface();
+
+        $nodeColumn = new NodeColumn([
+            'name' => 'email',
+            'key' => '',
+            'type' => 'varchar',
+            'default' => 'column',
+            'nullable' => '',
+        ]);
+        $this->assertSame('email (varchar, column)', $nodeColumn->displayName);
+        $this->assertSame(['image' => 'pause', 'title' => 'Column'], $nodeColumn->icon);
     }
 }
Original file line number	Diff line number	Diff line change
`@@ -71,14 +71,14 @@ private function getColumnIcon(string $key): string`
`71`	`71`	`private function getDisplayName(array $item): string`
`72`	`72`	`{`
`73`	`73`	`$retval = $item['name'];`
`74`		`- $flag = 0;`
	`74`	`+ $isFirst = true;`
`75`	`75`	`foreach ($item as $key => $value) {`
`76`	`76`	`if (empty($value) \|\| $key === 'name') {`
`77`	`77`	`continue;`
`78`	`78`	`}`
`79`	`79`
`80`		`- $flag == 0 ? $retval .= ' (' : $retval .= ', ';`
`81`		`- $flag = 1;`
	`80`	`+ $isFirst ? $retval .= ' (' : $retval .= ', ';`
	`81`	`+ $isFirst = false;`
`82`	`82`	`$retval .= $this->getTruncateValue($key, $value);`
`83`	`83`	`}`
`84`	`84`