address bot comments

tests/component_tests/text/test_text.py

@@ -68,3 +68,18 @@ def test_text_config_lamda_is_set(generate_main):
     # Then
     assert "it_4->set_template([]() -> std::optional<std::string> {" in main_cpp
     assert 'return std::string{"Hello"};' in main_cpp
+
+
+def test_esphome_optional_alias_works(generate_main):
+    """
+    Test that esphome::optional alias compiles (backward compatibility)
+    """
+    # Given
+
+    # When
+    main_cpp = generate_main("tests/component_tests/text/test_text.yaml")
+
+    # Then
+    # Codegen emits std::optional, but esphome::optional must also work
+    # via the using alias in esphome/core/optional.h
+    assert "std::optional<std::string>" in main_cpp

tests/components/template/common-base.yaml

@@ -31,6 +31,11 @@ esphome:
         id(template_sens).set_template([]() -> std::optional<float> {
           return 123.0f;
         });
+    # Test that esphome::optional alias still works for backward compatibility
+    - lambda: |-
+        id(template_sens).set_template([]() -> esphome::optional<float> {
+          return 42.0f;
+        });
 
     - datetime.date.set:
         id: test_date