Add tests for doc-strings (heredoc, nowdoc)

thekid · thekid · commit 913d4c2afad3 · 2025-09-27T13:43:42.000+02:00
diff --git a/src/test/php/lang/ast/unittest/emit/DocStringsTest.class.php b/src/test/php/lang/ast/unittest/emit/DocStringsTest.class.php
@@ -0,0 +1,47 @@
+<?php namespace lang\ast\unittest\emit;
+
+use test\{Assert, Test, Values};
+
+/** @see https://www.php.net/manual/en/language.types.string.php */
+class DocStringsTest extends EmittingTest {
+
+  #[Test, Values(['$body', '{$body}', '{$this->body}'])]
+  public function heredoc_interpolation($variable) {
+    $html= $this->run('class %T {
+      private $body= "...";
+
+      public function run() {
+        $body= $this->body;
+
+        return <<<HTML
+          <html>
+          <body>
+            '.$variable.'
+          </body>
+          </html>
+          HTML
+        ;
+      }
+    }');
+
+    Assert::equals("<html>\n<body>\n  ...\n</body>\n</html>", $html);
+  }
+
+  #[Test]
+  public function nowdoc() {
+    $html= $this->run('class %T {
+      public function run() {
+        return <<<\'HTML\'
+          <html>
+          <body>
+            {$body}
+          </body>
+          </html>
+          HTML
+        ;
+      }
+    }');
+
+    Assert::equals("<html>\n<body>\n  {\$body}\n</body>\n</html>", $html);
+  }
+}
