feat(cloud): harden multi-tenant runtime resources

tests/unit_tests/pipeline/test_longtext_image.py

@@ -0,0 +1,17 @@
+from unittest.mock import Mock
+
+from langbot.pkg.pipeline.longtext.strategies.image import Text2ImageStrategy
+
+
+class _WideFont:
+    def getlength(self, text: str) -> int:
+        return len(text) * 100
+
+
+def test_image_strategy_line_split_always_consumes_input():
+    strategy = Text2ImageStrategy(Mock())
+
+    lines = strategy._split_text_lines('abc', 1, _WideFont())
+
+    assert lines == ['a', 'b', 'c']
+    assert ''.join(lines) == 'abc'