Add regression test

Author: theodorejb

tests/RegressionTest.php

@@ -12,7 +12,7 @@
 /**
  * @phpstan-type RegIssue array{
  *     desc?: string, template: string, data?: mixed, options?: Options,
- *     helpers?: array<string, \Closure>, expected: string,
+ *     helpers?: array<string, \Closure>, runtimePartials?: array<string, string>, expected: string,
  * }
  */
 class RegressionTest extends TestCase
@@ -80,6 +80,7 @@ public function testRuntimePartials(): void
 
     /**
      * @param array<string, \Closure> $helpers
+     * @param array<string, string> $runtimePartials
      */
     #[DataProvider("helperProvider")]
     #[DataProvider("partialProvider")]
@@ -97,13 +98,14 @@ public function testRuntimePartials(): void
     #[DataProvider("missingDataProvider")]
     #[DataProvider("syntaxProvider")]
     #[DataProvider("subexpressionPathProvider")]
-    public function testIssues(string $template, string $expected, string $desc = '', mixed $data = null, ?Options $options = null, array $helpers = []): void
+    public function testIssues(string $template, string $expected, string $desc = '', mixed $data = null, ?Options $options = null, array $helpers = [], array $runtimePartials = []): void
     {
         $templateSpec = Handlebars::precompile($template, $options ?? new Options());
 
         try {
             $template = Handlebars::template($templateSpec);
-            $result = $template($data, ['helpers' => $helpers]);
+            $compiledPartials = array_map(fn($p) => Handlebars::compile($p), $runtimePartials);
+            $result = $template($data, ['helpers' => $helpers, 'partials' => $compiledPartials]);
         } catch (\Throwable $e) {
             $this->fail("$desc\nError: {$e->getMessage()}\nPHP code:\n$templateSpec");
         }
@@ -1195,6 +1197,17 @@ public static function partialProvider(): array
                 ),
                 'expected' => '{ ( [  «  <  Hello  > World!  »  ] ) }',
             ],
+            [
+                'desc' => 'LNC#292 - nested partials should render correctly (runtime partials)',
+                'template' => '{ {{#>outer}} {{#>innerBlock}} Hello {{/innerBlock}} {{>simple}} {{/outer}} }',
+                'runtimePartials' => [
+                    'outer' => '( {{#>nested}} « {{>@partial-block}} » {{/nested}} )',
+                    'nested' => '[ {{>@partial-block}} ]',
+                    'innerBlock' => '< {{>@partial-block}} >',
+                    'simple' => 'World!',
+                ],
+                'expected' => '{ ( [  «  <  Hello  > World!  »  ] ) }',
+            ],
 
             [
                 'desc' => 'LNC#284 - partial strings should be escaped',