Merge origin/log-skip-vprintf-indirection into integration

tests/component_tests/logger/test_logger.py

@@ -0,0 +1,43 @@
+"""Tests for the logger component."""
+
+import re
+
+
+def test_logger_pre_setup_before_other_components(generate_main):
+    """Logger::pre_setup() must be called before any other component is created.
+
+    Log functions call global_logger->log_vprintf_() without a null check,
+    so global_logger must be set before anything can log.
+    """
+    main_cpp = generate_main("tests/component_tests/logger/test_logger.yaml")
+
+    # Find the position of logger pre_setup
+    pre_setup_match = re.search(r"->pre_setup\(\)", main_cpp)
+    assert pre_setup_match is not None, "Logger pre_setup() not found in generated code"
+
+    # Find all "new " allocations (component creation)
+    new_allocations = list(re.finditer(r"\bnew [\w:]+", main_cpp))
+    assert len(new_allocations) > 0, "No component allocations found"
+
+    # Find the logger allocation
+    logger_new = None
+    for alloc in new_allocations:
+        if "logger" in alloc.group():
+            logger_new = alloc
+            break
+
+    assert logger_new is not None, (
+        f"Logger allocation not found in: {[a.group() for a in new_allocations]}"
+    )
+
+    # All non-logger allocations must appear after pre_setup()
+    for alloc in new_allocations:
+        if alloc == logger_new:
+            continue
+        # Skip "new (&App)" placement new which is before logger
+        if "(&App)" in main_cpp[max(0, alloc.start() - 5) : alloc.start()]:
+            continue
+        assert alloc.start() > pre_setup_match.start(), (
+            f"Component allocation '{alloc.group()}' at position {alloc.start()} "
+            f"appears before logger pre_setup() at position {pre_setup_match.start()}"
+        )

tests/component_tests/logger/test_logger.yaml

@@ -0,0 +1,9 @@
+---
+esphome:
+  name: test
+
+esp8266:
+  board: d1_mini_lite
+
+logger:
+  level: DEBUG