Merge branch 'platformio_cache_tests' into platformio_cache_tests_api

.github/workflows/ci-memory-impact-comment.yml

@@ -28,20 +28,23 @@ jobs:
         run: |
           # Get PR details by searching for PR with matching head SHA
           # The workflow_run.pull_requests field is often empty for forks
+          # Use paginate to handle repos with many open PRs
           head_sha="${{ github.event.workflow_run.head_sha }}"
-          pr_data=$(gh api "/repos/${{ github.repository }}/commits/$head_sha/pulls" \
+          pr_data=$(gh api --paginate "/repos/${{ github.repository }}/pulls" \
-            --jq '.[0] | {number: .number, base_ref: .base.ref}')
+            --jq ".[] | select(.head.sha == \"$head_sha\") | {number: .number, base_ref: .base.ref}" \
-          if [ -z "$pr_data" ] || [ "$pr_data" == "null" ]; then
+            | head -n 1)
+
+          if [ -z "$pr_data" ]; then
             echo "No PR found for SHA $head_sha, skipping"
-            echo "skip=true" >> $GITHUB_OUTPUT
+            echo "skip=true" >> "$GITHUB_OUTPUT"
             exit 0
           fi
 
           pr_number=$(echo "$pr_data" | jq -r '.number')
           base_ref=$(echo "$pr_data" | jq -r '.base_ref')
 
-          echo "pr_number=$pr_number" >> $GITHUB_OUTPUT
+          echo "pr_number=$pr_number" >> "$GITHUB_OUTPUT"
-          echo "base_ref=$base_ref" >> $GITHUB_OUTPUT
+          echo "base_ref=$base_ref" >> "$GITHUB_OUTPUT"
           echo "Found PR #$pr_number targeting base branch: $base_ref"
 
       - name: Check out code from base repository
@@ -87,9 +90,9 @@ jobs:
         if: steps.pr.outputs.skip != 'true'
         run: |
           if [ -f ./memory-analysis/memory-analysis-target.json ] && [ -f ./memory-analysis/memory-analysis-pr.json ]; then
-            echo "found=true" >> $GITHUB_OUTPUT
+            echo "found=true" >> "$GITHUB_OUTPUT"
           else
-            echo "found=false" >> $GITHUB_OUTPUT
+            echo "found=false" >> "$GITHUB_OUTPUT"
             echo "Memory analysis artifacts not found, skipping comment"
           fi
 

esphome/__main__.py

@@ -62,6 +62,40 @@ from esphome.util import (
 
 _LOGGER = logging.getLogger(__name__)
 
+# Special non-component keys that appear in configs
+_NON_COMPONENT_KEYS = frozenset(
+    {
+        CONF_ESPHOME,
+        "substitutions",
+        "packages",
+        "globals",
+        "external_components",
+        "<<",
+    }
+)
+
+
+def detect_external_components(config: ConfigType) -> set[str]:
+    """Detect external/custom components in the configuration.
+
+    External components are those that appear in the config but are not
+    part of ESPHome's built-in components and are not special config keys.
+
+    Args:
+        config: The ESPHome configuration dictionary
+
+    Returns:
+        A set of external component names
+    """
+    from esphome.analyze_memory.helpers import get_esphome_components
+
+    builtin_components = get_esphome_components()
+    return {
+        key
+        for key in config
+        if key not in builtin_components and key not in _NON_COMPONENT_KEYS
+    }
+
 
 class ArgsProtocol(Protocol):
     device: list[str] | None
@@ -892,6 +926,54 @@ def command_idedata(args: ArgsProtocol, config: ConfigType) -> int:
     return 0
 
 
+def command_analyze_memory(args: ArgsProtocol, config: ConfigType) -> int:
+    """Analyze memory usage by component.
+
+    This command compiles the configuration and performs memory analysis.
+    Compilation is fast if sources haven't changed (just relinking).
+    """
+    from esphome import platformio_api
+    from esphome.analyze_memory.cli import MemoryAnalyzerCLI
+
+    # Always compile to ensure fresh data (fast if no changes - just relinks)
+    exit_code = write_cpp(config)
+    if exit_code != 0:
+        return exit_code
+    exit_code = compile_program(args, config)
+    if exit_code != 0:
+        return exit_code
+    _LOGGER.info("Successfully compiled program.")
+
+    # Get idedata for analysis
+    idedata = platformio_api.get_idedata(config)
+    if idedata is None:
+        _LOGGER.error("Failed to get IDE data for memory analysis")
+        return 1
+
+    firmware_elf = Path(idedata.firmware_elf_path)
+
+    # Extract external components from config
+    external_components = detect_external_components(config)
+    _LOGGER.debug("Detected external components: %s", external_components)
+
+    # Perform memory analysis
+    _LOGGER.info("Analyzing memory usage...")
+    analyzer = MemoryAnalyzerCLI(
+        str(firmware_elf),
+        idedata.objdump_path,
+        idedata.readelf_path,
+        external_components,
+    )
+    analyzer.analyze()
+
+    # Generate and display report
+    report = analyzer.generate_report()
+    print()
+    print(report)
+
+    return 0
+
+
 def command_rename(args: ArgsProtocol, config: ConfigType) -> int | None:
     new_name = args.name
     for c in new_name:
@@ -1007,6 +1089,7 @@ POST_CONFIG_ACTIONS = {
     "idedata": command_idedata,
     "rename": command_rename,
     "discover": command_discover,
+    "analyze-memory": command_analyze_memory,
 }
 
 SIMPLE_CONFIG_ACTIONS = [
@@ -1292,6 +1375,14 @@ def parse_args(argv):
     )
     parser_rename.add_argument("name", help="The new name for the device.", type=str)
 
+    parser_analyze_memory = subparsers.add_parser(
+        "analyze-memory",
+        help="Analyze memory usage by component.",
+    )
+    parser_analyze_memory.add_argument(
+        "configuration", help="Your YAML configuration file(s).", nargs="+"
+    )
+
     # Keep backward compatibility with the old command line format of
     # esphome <config> <command>.
     #

esphome/components/substitutions/__init__.py

@@ -6,7 +6,7 @@ import esphome.config_validation as cv
 from esphome.const import CONF_SUBSTITUTIONS, VALID_SUBSTITUTIONS_CHARACTERS
 from esphome.yaml_util import ESPHomeDataBase, ESPLiteralValue, make_data_base
 
-from .jinja import Jinja, JinjaStr, TemplateError, TemplateRuntimeError, has_jinja
+from .jinja import Jinja, JinjaError, JinjaStr, has_jinja
 
 CODEOWNERS = ["@esphome/core"]
 _LOGGER = logging.getLogger(__name__)
@@ -57,17 +57,12 @@ def _expand_jinja(value, orig_value, path, jinja, ignore_missing):
                     "->".join(str(x) for x in path),
                     err.message,
                 )
-        except (
+        except JinjaError as err:
-            TemplateError,
-            TemplateRuntimeError,
-            RuntimeError,
-            ArithmeticError,
-            AttributeError,
-            TypeError,
-        ) as err:
             raise cv.Invalid(
-                f"{type(err).__name__} Error evaluating jinja expression '{value}': {str(err)}."
+                f"{err.error_name()} Error evaluating jinja expression '{value}': {str(err.parent())}."
-                f" See {'->'.join(str(x) for x in path)}",
+                f"\nEvaluation stack: (most recent evaluation last)\n{err.stack_trace_str()}"
+                f"\nRelevant context:\n{err.context_trace_str()}"
+                f"\nSee {'->'.join(str(x) for x in path)}",
                 path,
             )
     return value

esphome/components/substitutions/jinja.py

@@ -6,6 +6,8 @@ import re
 import jinja2 as jinja
 from jinja2.sandbox import SandboxedEnvironment
 
+from esphome.yaml_util import ESPLiteralValue
+
 TemplateError = jinja.TemplateError
 TemplateSyntaxError = jinja.TemplateSyntaxError
 TemplateRuntimeError = jinja.TemplateRuntimeError
@@ -26,18 +28,20 @@ def has_jinja(st):
     return detect_jinja_re.search(st) is not None
 
 
-# SAFE_GLOBAL_FUNCTIONS defines a allowlist of built-in functions that are considered safe to expose
+# SAFE_GLOBALS defines a allowlist of built-in functions or modules that are considered safe to expose
 # in Jinja templates or other sandboxed evaluation contexts. Only functions that do not allow
 # arbitrary code execution, file access, or other security risks are included.
 #
 # The following functions are considered safe:
+#   - math: The entire math module is injected, allowing access to mathematical functions like sin, cos, sqrt, etc.
 #   - ord: Converts a character to its Unicode code point integer.
 #   - chr: Converts an integer to its corresponding Unicode character.
 #   - len: Returns the length of a sequence or collection.
 #
 # These functions were chosen because they are pure, have no side effects, and do not provide access
 # to the file system, environment, or other potentially sensitive resources.
-SAFE_GLOBAL_FUNCTIONS = {
+SAFE_GLOBALS = {
+    "math": math,  # Inject entire math module
     "ord": ord,
     "chr": chr,
     "len": len,
@@ -56,22 +60,62 @@ class JinjaStr(str):
     later in the main substitutions pass.
     """
 
+    Undefined = object()
+
     def __new__(cls, value: str, upvalues=None):
-        obj = super().__new__(cls, value)
+        if isinstance(value, JinjaStr):
-        obj.upvalues = upvalues or {}
+            base = str(value)
+            merged = {**value.upvalues, **(upvalues or {})}
+        else:
+            base = value
+            merged = dict(upvalues or {})
+        obj = super().__new__(cls, base)
+        obj.upvalues = merged
+        obj.result = JinjaStr.Undefined
         return obj
 
-    def __init__(self, value: str, upvalues=None):
+
-        self.upvalues = upvalues or {}
+class JinjaError(Exception):
+    def __init__(self, context_trace: dict, expr: str):
+        self.context_trace = context_trace
+        self.eval_stack = [expr]
+
+    def parent(self):
+        return self.__context__
+
+    def error_name(self):
+        return type(self.parent()).__name__
+
+    def context_trace_str(self):
+        return "\n".join(
+            f"  {k} = {repr(v)} ({type(v).__name__})"
+            for k, v in self.context_trace.items()
+        )
+
+    def stack_trace_str(self):
+        return "\n".join(
+            f" {len(self.eval_stack) - i}: {expr}{i == 0 and ' <-- ' + self.error_name() or ''}"
+            for i, expr in enumerate(self.eval_stack)
+        )
 
 
-class Jinja:
+class TrackerContext(jinja.runtime.Context):
+    def resolve_or_missing(self, key):
+        val = super().resolve_or_missing(key)
+        if isinstance(val, JinjaStr):
+            self.environment.context_trace[key] = val
+            val, _ = self.environment.expand(val)
+        self.environment.context_trace[key] = val
+        return val
+
+
+class Jinja(SandboxedEnvironment):
     """
     Wraps a Jinja environment
     """
 
     def __init__(self, context_vars):
-        self.env = SandboxedEnvironment(
+        super().__init__(
             trim_blocks=True,
             lstrip_blocks=True,
             block_start_string="<%",
@@ -82,13 +126,20 @@ class Jinja:
             variable_end_string="}",
             undefined=jinja.StrictUndefined,
         )
-        self.env.add_extension("jinja2.ext.do")
+        self.context_class = TrackerContext
-        self.env.globals["math"] = math  # Inject entire math module
+        self.add_extension("jinja2.ext.do")
+        self.context_trace = {}
         self.context_vars = {**context_vars}
-        self.env.globals = {
+        for k, v in self.context_vars.items():
-            **self.env.globals,
+            if isinstance(v, ESPLiteralValue):
+                continue
+            if isinstance(v, str) and not isinstance(v, JinjaStr) and has_jinja(v):
+                self.context_vars[k] = JinjaStr(v, self.context_vars)
+
+        self.globals = {
+            **self.globals,
             **self.context_vars,
-            **SAFE_GLOBAL_FUNCTIONS,
+            **SAFE_GLOBALS,
         }
 
     def safe_eval(self, expr):
@@ -110,23 +161,43 @@ class Jinja:
         result = None
         override_vars = {}
         if isinstance(content_str, JinjaStr):
+            if content_str.result is not JinjaStr.Undefined:
+                return content_str.result, None
             # If `value` is already a JinjaStr, it means we are trying to evaluate it again
             # in a parent pass.
             # Hopefully, all required variables are visible now.
             override_vars = content_str.upvalues
+
+        old_trace = self.context_trace
+        self.context_trace = {}
         try:
-            template = self.env.from_string(content_str)
+            template = self.from_string(content_str)
             result = self.safe_eval(template.render(override_vars))
             if isinstance(result, Undefined):
-                # This happens when the expression is simply an undefined variable. Jinja does not
+                print("" + result)  # force a UndefinedError exception
-                # raise an exception, instead we get "Undefined".
-                # Trigger an UndefinedError exception so we skip to below.
-                print("" + result)
         except (TemplateSyntaxError, UndefinedError) as err:
             # `content_str` contains a Jinja expression that refers to a variable that is undefined
             # in this scope. Perhaps it refers to a root substitution that is not visible yet.
-            # Therefore, return the original `content_str` as a JinjaStr, which contains the variables
+            # Therefore, return `content_str` as a JinjaStr, which contains the variables
             # that are actually visible to it at this point to postpone evaluation.
             return JinjaStr(content_str, {**self.context_vars, **override_vars}), err
+        except JinjaError as err:
+            err.context_trace = {**self.context_trace, **err.context_trace}
+            err.eval_stack.append(content_str)
+            raise err
+        except (
+            TemplateError,
+            TemplateRuntimeError,
+            RuntimeError,
+            ArithmeticError,
+            AttributeError,
+            TypeError,
+        ) as err:
+            raise JinjaError(self.context_trace, content_str) from err
+        finally:
+            self.context_trace = old_trace
+
+        if isinstance(content_str, JinjaStr):
+            content_str.result = result
 
         return result, None

esphome/core/defines.h

@@ -273,6 +273,8 @@
 
 #ifdef USE_NRF52
 #define USE_NRF52_DFU
+#define USE_SOFTDEVICE_ID 7
+#define USE_SOFTDEVICE_VERSION 1
 #endif
 
 // Disabled feature flags

tests/unit_tests/fixtures/substitutions/02-expressions.approved.yaml

@@ -8,6 +8,7 @@ substitutions:
   area: 25
   numberOne: 1
   var1: 79
+  double_width: 14
 test_list:
   - The area is 56
   - 56
@@ -25,3 +26,4 @@ test_list:
   - ord("a") = 97
   - chr(97) = a
   - len([1,2,3]) = 3
+  - width = 7, double_width = 14

tests/unit_tests/fixtures/substitutions/02-expressions.input.yaml

@@ -8,6 +8,7 @@ substitutions:
   area: 25
   numberOne: 1
   var1: 79
+  double_width: ${width * 2}
 
 test_list:
   - "The area is ${width * height}"
@@ -23,3 +24,4 @@ test_list:
   - ord("a") = ${ ord("a") }
   - chr(97) = ${ chr(97) }
   - len([1,2,3]) = ${ len([1,2,3]) }
+  - width = ${width}, double_width = ${double_width}

tests/unit_tests/test_main.py

@@ -17,10 +17,12 @@ from esphome import platformio_api
 from esphome.__main__ import (
     Purpose,
     choose_upload_log_host,
+    command_analyze_memory,
     command_clean_all,
     command_rename,
     command_update_all,
     command_wizard,
+    detect_external_components,
     get_port_type,
     has_ip_address,
     has_mqtt,
@@ -226,13 +228,47 @@ def mock_run_external_process() -> Generator[Mock]:
 
 
 @pytest.fixture
-def mock_run_external_command() -> Generator[Mock]:
+def mock_run_external_command_main() -> Generator[Mock]:
-    """Mock run_external_command for testing."""
+    """Mock run_external_command in __main__ module (different from platformio_api)."""
     with patch("esphome.__main__.run_external_command") as mock:
         mock.return_value = 0  # Default to success
         yield mock
 
 
+@pytest.fixture
+def mock_write_cpp() -> Generator[Mock]:
+    """Mock write_cpp for testing."""
+    with patch("esphome.__main__.write_cpp") as mock:
+        mock.return_value = 0  # Default to success
+        yield mock
+
+
+@pytest.fixture
+def mock_compile_program() -> Generator[Mock]:
+    """Mock compile_program for testing."""
+    with patch("esphome.__main__.compile_program") as mock:
+        mock.return_value = 0  # Default to success
+        yield mock
+
+
+@pytest.fixture
+def mock_get_esphome_components() -> Generator[Mock]:
+    """Mock get_esphome_components for testing."""
+    with patch("esphome.analyze_memory.helpers.get_esphome_components") as mock:
+        mock.return_value = {"logger", "api", "ota"}
+        yield mock
+
+
+@pytest.fixture
+def mock_memory_analyzer_cli() -> Generator[Mock]:
+    """Mock MemoryAnalyzerCLI for testing."""
+    with patch("esphome.analyze_memory.cli.MemoryAnalyzerCLI") as mock_class:
+        mock_analyzer = MagicMock()
+        mock_analyzer.generate_report.return_value = "Mock Memory Report"
+        mock_class.return_value = mock_analyzer
+        yield mock_class
+
+
 def test_choose_upload_log_host_with_string_default() -> None:
     """Test with a single string default device."""
     setup_core()
@@ -839,7 +875,7 @@ def test_upload_program_serial_esp8266_with_file(
 
 def test_upload_using_esptool_path_conversion(
     tmp_path: Path,
-    mock_run_external_command: Mock,
+    mock_run_external_command_main: Mock,
     mock_get_idedata: Mock,
 ) -> None:
     """Test upload_using_esptool properly converts Path objects to strings for esptool.
@@ -875,10 +911,10 @@ def test_upload_using_esptool_path_conversion(
     assert result == 0
 
     # Verify that run_external_command was called
-    assert mock_run_external_command.call_count == 1
+    assert mock_run_external_command_main.call_count == 1
 
     # Get the actual call arguments
-    call_args = mock_run_external_command.call_args[0]
+    call_args = mock_run_external_command_main.call_args[0]
 
     # The first argument should be esptool.main function,
     # followed by the command arguments
@@ -917,7 +953,7 @@ def test_upload_using_esptool_path_conversion(
 
 def test_upload_using_esptool_with_file_path(
     tmp_path: Path,
-    mock_run_external_command: Mock,
+    mock_run_external_command_main: Mock,
 ) -> None:
     """Test upload_using_esptool with a custom file that's a Path object."""
     setup_core(platform=PLATFORM_ESP8266, tmp_path=tmp_path, name="test")
@@ -934,10 +970,10 @@ def test_upload_using_esptool_with_file_path(
     assert result == 0
 
     # Verify that run_external_command was called
-    mock_run_external_command.assert_called_once()
+    mock_run_external_command_main.assert_called_once()
 
     # Get the actual call arguments
-    call_args = mock_run_external_command.call_args[0]
+    call_args = mock_run_external_command_main.call_args[0]
     cmd_list = list(call_args[1:])  # Skip the esptool.main function
 
     # Find the firmware path in the command
@@ -2273,3 +2309,226 @@ def test_show_logs_api_mqtt_timeout_fallback(
 
     # Verify run_logs was called with only the static IP (MQTT failed)
     mock_run_logs.assert_called_once_with(CORE.config, ["192.168.1.100"])
+
+
+def test_detect_external_components_no_external(
+    mock_get_esphome_components: Mock,
+) -> None:
+    """Test detect_external_components with no external components."""
+    config = {
+        CONF_ESPHOME: {CONF_NAME: "test_device"},
+        "logger": {},
+        "api": {},
+    }
+
+    result = detect_external_components(config)
+
+    assert result == set()
+    mock_get_esphome_components.assert_called_once()
+
+
+def test_detect_external_components_with_external(
+    mock_get_esphome_components: Mock,
+) -> None:
+    """Test detect_external_components detects external components."""
+    config = {
+        CONF_ESPHOME: {CONF_NAME: "test_device"},
+        "logger": {},  # Built-in
+        "api": {},  # Built-in
+        "my_custom_sensor": {},  # External
+        "another_custom": {},  # External
+        "external_components": [],  # Special key, not a component
+        "substitutions": {},  # Special key, not a component
+    }
+
+    result = detect_external_components(config)
+
+    assert result == {"my_custom_sensor", "another_custom"}
+    mock_get_esphome_components.assert_called_once()
+
+
+def test_detect_external_components_filters_special_keys(
+    mock_get_esphome_components: Mock,
+) -> None:
+    """Test detect_external_components filters out special config keys."""
+    config = {
+        CONF_ESPHOME: {CONF_NAME: "test_device"},
+        "substitutions": {"key": "value"},
+        "packages": {},
+        "globals": [],
+        "external_components": [],
+        "<<": {},  # YAML merge key
+    }
+
+    result = detect_external_components(config)
+
+    assert result == set()
+    mock_get_esphome_components.assert_called_once()
+
+
+def test_command_analyze_memory_success(
+    tmp_path: Path,
+    capfd: CaptureFixture[str],
+    mock_write_cpp: Mock,
+    mock_compile_program: Mock,
+    mock_get_idedata: Mock,
+    mock_get_esphome_components: Mock,
+    mock_memory_analyzer_cli: Mock,
+) -> None:
+    """Test command_analyze_memory with successful compilation and analysis."""
+    setup_core(platform=PLATFORM_ESP32, tmp_path=tmp_path, name="test_device")
+
+    # Create firmware.elf file
+    firmware_path = (
+        tmp_path / ".esphome" / "build" / "test_device" / ".pioenvs" / "test_device"
+    )
+    firmware_path.mkdir(parents=True, exist_ok=True)
+    firmware_elf = firmware_path / "firmware.elf"
+    firmware_elf.write_text("mock elf file")
+
+    # Mock idedata
+    mock_idedata_obj = MagicMock(spec=platformio_api.IDEData)
+    mock_idedata_obj.firmware_elf_path = str(firmware_elf)
+    mock_idedata_obj.objdump_path = "/path/to/objdump"
+    mock_idedata_obj.readelf_path = "/path/to/readelf"
+    mock_get_idedata.return_value = mock_idedata_obj
+
+    config = {
+        CONF_ESPHOME: {CONF_NAME: "test_device"},
+        "logger": {},
+    }
+
+    args = MockArgs()
+
+    result = command_analyze_memory(args, config)
+
+    assert result == 0
+
+    # Verify compilation was done
+    mock_write_cpp.assert_called_once_with(config)
+    mock_compile_program.assert_called_once_with(args, config)
+
+    # Verify analyzer was created with correct parameters
+    mock_memory_analyzer_cli.assert_called_once_with(
+        str(firmware_elf),
+        "/path/to/objdump",
+        "/path/to/readelf",
+        set(),  # No external components
+    )
+
+    # Verify analysis was run
+    mock_analyzer = mock_memory_analyzer_cli.return_value
+    mock_analyzer.analyze.assert_called_once()
+    mock_analyzer.generate_report.assert_called_once()
+
+    # Verify report was printed
+    captured = capfd.readouterr()
+    assert "Mock Memory Report" in captured.out
+
+
+def test_command_analyze_memory_with_external_components(
+    tmp_path: Path,
+    mock_write_cpp: Mock,
+    mock_compile_program: Mock,
+    mock_get_idedata: Mock,
+    mock_get_esphome_components: Mock,
+    mock_memory_analyzer_cli: Mock,
+) -> None:
+    """Test command_analyze_memory detects external components."""
+    setup_core(platform=PLATFORM_ESP32, tmp_path=tmp_path, name="test_device")
+
+    # Create firmware.elf file
+    firmware_path = (
+        tmp_path / ".esphome" / "build" / "test_device" / ".pioenvs" / "test_device"
+    )
+    firmware_path.mkdir(parents=True, exist_ok=True)
+    firmware_elf = firmware_path / "firmware.elf"
+    firmware_elf.write_text("mock elf file")
+
+    # Mock idedata
+    mock_idedata_obj = MagicMock(spec=platformio_api.IDEData)
+    mock_idedata_obj.firmware_elf_path = str(firmware_elf)
+    mock_idedata_obj.objdump_path = "/path/to/objdump"
+    mock_idedata_obj.readelf_path = "/path/to/readelf"
+    mock_get_idedata.return_value = mock_idedata_obj
+
+    config = {
+        CONF_ESPHOME: {CONF_NAME: "test_device"},
+        "logger": {},
+        "my_custom_component": {"param": "value"},  # External component
+        "external_components": [{"source": "github://user/repo"}],  # Not a component
+    }
+
+    args = MockArgs()
+
+    result = command_analyze_memory(args, config)
+
+    assert result == 0
+
+    # Verify analyzer was created with external components detected
+    mock_memory_analyzer_cli.assert_called_once_with(
+        str(firmware_elf),
+        "/path/to/objdump",
+        "/path/to/readelf",
+        {"my_custom_component"},  # External component detected
+    )
+
+
+def test_command_analyze_memory_write_cpp_fails(
+    tmp_path: Path,
+    mock_write_cpp: Mock,
+) -> None:
+    """Test command_analyze_memory when write_cpp fails."""
+    setup_core(platform=PLATFORM_ESP32, tmp_path=tmp_path, name="test_device")
+
+    config = {CONF_ESPHOME: {CONF_NAME: "test_device"}}
+    args = MockArgs()
+
+    mock_write_cpp.return_value = 1  # Failure
+
+    result = command_analyze_memory(args, config)
+
+    assert result == 1
+    mock_write_cpp.assert_called_once_with(config)
+
+
+def test_command_analyze_memory_compile_fails(
+    tmp_path: Path,
+    mock_write_cpp: Mock,
+    mock_compile_program: Mock,
+) -> None:
+    """Test command_analyze_memory when compilation fails."""
+    setup_core(platform=PLATFORM_ESP32, tmp_path=tmp_path, name="test_device")
+
+    config = {CONF_ESPHOME: {CONF_NAME: "test_device"}}
+    args = MockArgs()
+
+    mock_compile_program.return_value = 1  # Compilation failed
+
+    result = command_analyze_memory(args, config)
+
+    assert result == 1
+    mock_write_cpp.assert_called_once_with(config)
+    mock_compile_program.assert_called_once_with(args, config)
+
+
+def test_command_analyze_memory_no_idedata(
+    tmp_path: Path,
+    caplog: pytest.LogCaptureFixture,
+    mock_write_cpp: Mock,
+    mock_compile_program: Mock,
+    mock_get_idedata: Mock,
+) -> None:
+    """Test command_analyze_memory when idedata cannot be retrieved."""
+    setup_core(platform=PLATFORM_ESP32, tmp_path=tmp_path, name="test_device")
+
+    config = {CONF_ESPHOME: {CONF_NAME: "test_device"}}
+    args = MockArgs()
+
+    mock_get_idedata.return_value = None  # Failed to get idedata
+
+    with caplog.at_level(logging.ERROR):
+        result = command_analyze_memory(args, config)
+
+    assert result == 1
+    assert "Failed to get IDE data for memory analysis" in caplog.text