Resolves #939 replaced single quotes with nowdoc

Author: Kamil

src/Generator/SqlGenerator.php

@@ -61,7 +61,10 @@ public function generate(
                 }
             }
 
-            $code[] = sprintf('$this->addSql(%s);', var_export($query, true));
+            $code[] = sprintf(
+                "\$this->addSql(<<<'SQL'\n%s\nSQL);",
+                preg_replace('/^/m', str_repeat(' ', 4), $query)
+            );
         }
 
         if (count($code) !== 0 && $checkDbPlatform && $this->configuration->isDatabasePlatformChecked()) {

tests/Generator/SqlGeneratorTest.php

@@ -47,10 +47,16 @@ public function testGenerate(): void
                     !\$this->connection->getDatabasePlatform() instanceof \\$expectedPlatform,
                     "Migration can only be executed safely on '\\$expectedPlatform'."
                 );
-                
-                \$this->addSql('SELECT 1');
-                \$this->addSql('SELECT 2');
-                \$this->addSql('%s');
+
+                \$this->addSql(<<<'SQL'
+                    SELECT 1
+                SQL);
+                \$this->addSql(<<<'SQL'
+                    SELECT 2
+                SQL);
+                \$this->addSql(<<<'SQL'
+                    %s
+                SQL);
                 CODE,
         );
 
@@ -65,9 +71,15 @@ public function testGenerationWithoutCheckingDatabasePlatform(): void
 
         $expectedCode = $this->prepareGeneratedCode(
             <<<'CODE'
-                $this->addSql('SELECT 1');
-                $this->addSql('SELECT 2');
-                $this->addSql('%s');
+                $this->addSql(<<<'SQL'
+                    SELECT 1
+                SQL);
+                $this->addSql(<<<'SQL'
+                    SELECT 2
+                SQL);
+                $this->addSql(<<<'SQL'
+                    %s
+                SQL);
                 CODE,
         );
 
@@ -82,9 +94,15 @@ public function testGenerationWithoutCheckingDatabasePlatformWithConfiguration()
 
         $expectedCode = $this->prepareGeneratedCode(
             <<<'CODE'
-                $this->addSql('SELECT 1');
-                $this->addSql('SELECT 2');
-                $this->addSql('%s');
+                $this->addSql(<<<'SQL'
+                    SELECT 1
+                SQL);
+                $this->addSql(<<<'SQL'
+                    SELECT 2
+                SQL);
+                $this->addSql(<<<'SQL'
+                    %s
+                SQL);
                 CODE,
         );
 
@@ -119,7 +137,13 @@ private function prepareGeneratedCode(string $expectedCode): string
 
         return sprintf(
             $expectedCode,
-            (new SqlFormatter(new NullHighlighter()))->format($this->sql[2]),
+            implode(
+                PHP_EOL . str_repeat(' ', 4),
+                explode(
+                    PHP_EOL,
+                    (new SqlFormatter(new NullHighlighter()))->format($this->sql[2]),
+                ),
+            ),
         );
     }
 }