fix: Connection::runDdlBatch should allow empty

CHANGELOG.md

@@ -11,6 +11,7 @@ Changed
 
 Fixed
 - `Schema\Grammar::compileAdd()` `Schema\Grammar::compileChange()` `Schema\Grammar::compileChange()` now create separate statements (#159)
+- `Connection::runDdlBatch()` with empty statement now return an empty array instead of throwing an error (#169)
 
 # v6.1.2 (2024-01-16)
 

src/Concerns/ManagesDataDefinitions.php

@@ -58,6 +58,10 @@ public function runDdls(array $ddls): LongRunningOperation
      */
     public function runDdlBatch(array $statements): mixed
     {
+        if (count($statements) === 0) {
+            return [];
+        }
+
         $start = microtime(true);
 
         $result = $this->waitForOperation(

tests/Concerns/ManagesDataDefinitionsTest.php

@@ -42,6 +42,19 @@ public function test_runDdlBatch(): void
         Event::assertDispatchedTimes(QueryExecuted::class, 1);
     }
 
+    public function test_runDdlBatch_with_empty_statement(): void
+    {
+        $events = Event::fake([QueryExecuted::class]);
+        $conn = $this->getDefaultConnection();
+        $conn->setEventDispatcher($events);
+        $conn->enableQueryLog();
+        $result = $conn->runDdlBatch([]);
+
+        $this->assertSame([], $result);
+        $this->assertCount(0, $conn->getQueryLog());
+        Event::assertNotDispatched(QueryExecuted::class);
+    }
+
     public function test_createDatabase_with_statements(): void
     {
         $events = Event::fake([QueryExecuted::class]);