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esphome/tests/unit_tests/test_arduino8266_toolchain.py
T

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Python

"""Tests for esphome.arduino8266.toolchain (the ninja build driver)."""
from __future__ import annotations
import os
from pathlib import Path
from unittest.mock import MagicMock, patch
import pytest
from esphome.arduino8266 import framework, toolchain
import esphome.config_validation as cv
from esphome.const import (
CONF_COMPILE_PROCESS_LIMIT,
CONF_ESPHOME,
KEY_CORE,
KEY_FRAMEWORK_VERSION,
)
from esphome.core import CORE, EsphomeError
_SIZE_OUTPUT = """\
firmware.elf :
section size addr
.data 1924 1073643520
.noinit 56 1073645444
.text 496 1074790400
.irom0.text 342804 1075843088
.text1 27489 1074790896
.rodata 2588 1073645504
.bss 26504 1073648096
Total 401861
"""
@pytest.fixture(autouse=True)
def _setup_core(tmp_path: Path) -> None:
CORE.name = "test8266"
CORE.config_path = tmp_path / "test8266.yaml"
CORE.build_path = tmp_path
CORE.data[KEY_CORE] = {KEY_FRAMEWORK_VERSION: cv.Version(3, 1, 2)}
# run_compile verifies the produced artifacts; give every test a build
# that "produced" them (tests for the guard delete them again). The
# manifest comes first: artifacts must not be older than build.ninja.
build_dir = CORE.relative_pioenvs_path("test8266")
build_dir.mkdir(parents=True, exist_ok=True)
(build_dir / "build.ninja").write_text("# manifest")
for artifact in (
"firmware.elf",
"firmware.bin",
"firmware.factory.bin",
"firmware.ota.bin",
):
(build_dir / artifact).write_bytes(b"")
def _paths(tmp_path: Path) -> framework.InstalledPaths:
return framework.InstalledPaths(
framework=tmp_path / "framework",
toolchain=tmp_path / "toolchain",
ninja=tmp_path / "ninja",
)
def test_path_getters(tmp_path: Path) -> None:
assert toolchain.get_build_dir() == CORE.relative_pioenvs_path("test8266")
assert toolchain.get_elf_path().name == "firmware.elf"
# The framework accessor owns the layout and the Windows suffix
suffix = ".exe" if os.name == "nt" else ""
assert toolchain.get_addr2line_path().name == f"xtensa-lx106-elf-addr2line{suffix}"
assert toolchain.get_objdump_path().name == f"xtensa-lx106-elf-objdump{suffix}"
assert toolchain.get_readelf_path().name == f"xtensa-lx106-elf-readelf{suffix}"
def test_run_compile_build_failure(tmp_path: Path) -> None:
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project"),
patch.object(
toolchain.subprocess, "run", return_value=MagicMock(returncode=2)
) as mock_run,
patch.object(toolchain, "_write_compile_commands") as mock_compdb,
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=True) == 2
cmd = mock_run.call_args[0][0]
assert "-v" in cmd
# The compile database is generated before the build runs, so a failed
# build cannot leave a stale database behind.
mock_compdb.assert_called_once()
def test_run_compile_success(tmp_path: Path) -> None:
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
# An unchanged manifest is what makes the -n probe run
patch("esphome.build_gen.arduino8266.write_project", return_value=False),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout="", stderr=""),
) as mock_run,
patch.object(toolchain, "_write_compile_commands") as mock_compdb,
patch.object(toolchain, "_print_size_summary") as mock_size,
patch.object(toolchain, "get_idedata") as mock_idedata,
):
rc = toolchain.run_compile(
{CONF_ESPHOME: {CONF_COMPILE_PROCESS_LIMIT: 4}}, verbose=False
)
assert rc == 0
# The -n probe runs first, then the real build (cwd, no -C banner)
ninja_calls = [c for c in mock_run.call_args_list if "ninja" in str(c[0][0][0])]
assert "-n" in ninja_calls[0][0][0]
# Explicit targets: a manifest missing them fails as "unknown target"
assert ninja_calls[0][0][0][-1] == "firmware.ota.bin"
cmd = ninja_calls[1][0][0]
assert cmd[-4:] == ["-j", "4", "firmware.factory.bin", "firmware.ota.bin"]
assert "-C" not in cmd
assert ninja_calls[1][1]["cwd"] is not None
mock_compdb.assert_called_once()
mock_size.assert_called_once()
mock_idedata.assert_called_once()
def test_run_compile_noop_skips_the_build_spawn(tmp_path: Path) -> None:
"""A no-op rebuild stays quiet: the -n probe answers "no work to do"
and the real ninja spawn (and its banner) never happens."""
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
# An unchanged manifest is what makes the -n probe run
patch("esphome.build_gen.arduino8266.write_project", return_value=False),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(
returncode=0, stdout="ninja: no work to do.\n", stderr=""
),
) as mock_run,
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary"),
patch.object(toolchain, "get_idedata"),
):
rc = toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False)
assert rc == 0
ninja_calls = [c for c in mock_run.call_args_list if "ninja" in str(c[0][0][0])]
assert len(ninja_calls) == 1
assert "-n" in ninja_calls[0][0][0]
# Explicit targets: a manifest missing them fails as "unknown target"
assert ninja_calls[0][0][0][-1] == "firmware.ota.bin"
def test_run_compile_regenerates_stale_compdb(tmp_path: Path) -> None:
"""An interrupted run can leave build.ninja newer than the compile DB;
mere existence must not skip regeneration."""
build_dir = toolchain.get_build_dir()
build_dir.mkdir(parents=True, exist_ok=True)
(build_dir / "build.ninja").write_text("")
compdb = build_dir / "compile_commands.json"
compdb.write_text("[]")
os.utime(compdb, ((build_dir / "build.ninja").stat().st_mtime - 5,) * 2)
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project", return_value=False),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(
returncode=0, stdout="ninja: no work to do.\n", stderr=""
),
),
patch.object(toolchain, "_write_compile_commands") as mock_compdb,
patch.object(toolchain, "_print_size_summary"),
patch.object(toolchain, "get_idedata"),
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False) == 0
mock_compdb.assert_called_once()
def test_run_compile_surfaces_probe_diagnostics(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""A load-time ninja diagnostic (a generator bug signal) reaches the
user even when the no-work branch skips the real spawn."""
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
# An unchanged manifest is what makes the -n probe run
patch("esphome.build_gen.arduino8266.write_project", return_value=False),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(
returncode=0,
stdout="ninja: no work to do.\n",
stderr="ninja: warning: multiple rules generate x\n",
),
),
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary"),
patch.object(toolchain, "get_idedata"),
):
rc = toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False)
assert rc == 0
assert "multiple rules generate x" in caplog.text
def test_run_compile_missing_artifact_fails(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""A zero ninja exit that produced no firmware must not be a green
build (size summary and idedata only warn)."""
(toolchain.get_build_dir() / "firmware.elf").unlink()
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project"),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout="", stderr=""),
),
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary") as mock_size,
patch.object(toolchain, "get_idedata"),
):
rc = toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False)
assert rc == 1
assert "Build produced no" in caplog.text
mock_size.assert_not_called()
def test_run_compile_warns_when_idedata_fails(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""A failed idedata generation right after a successful build is visible,
not deferred to a misleading error in a later command."""
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project"),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout="", stderr=""),
),
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary"),
patch.object(toolchain, "get_idedata", return_value=None),
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False) == 0
assert "No idedata was generated for this build" in caplog.text
def test_write_compile_commands(tmp_path: Path) -> None:
build_dir = tmp_path / "build"
build_dir.mkdir()
entries = '[{"file": "a.cpp", "command": "cc"}]\n'
with patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=entries),
):
toolchain._write_compile_commands(tmp_path / "ninja", build_dir, {})
assert (build_dir / "compile_commands.json").read_text() == entries
@pytest.mark.parametrize(
("stdout", "match"),
[
("[]\n", "empty compile database"),
# A parse failure names its cause, not the rule-name story
("not json", "unparsable compile database.*not json"),
],
)
def test_write_compile_commands_bad_db_raises(
tmp_path: Path, stdout: str, match: str
) -> None:
"""An empty or unparsable compile database fails the build with its
actual cause and drops any stale database."""
build_dir = tmp_path / "build"
build_dir.mkdir()
(build_dir / "compile_commands.json").write_text("[stale]")
with (
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=stdout),
),
pytest.raises(EsphomeError, match=match),
):
toolchain._write_compile_commands(tmp_path / "ninja", build_dir, {})
assert not (build_dir / "compile_commands.json").exists()
def test_write_compile_commands_failure_removes_stale_db(tmp_path: Path) -> None:
"""A failed compdb run must not leave a stale database behind."""
stale = tmp_path / "compile_commands.json"
stale.write_text("[]")
with (
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=1, stderr="boom"),
),
pytest.raises(EsphomeError, match="compile_commands"),
):
toolchain._write_compile_commands(tmp_path / "ninja", tmp_path, {})
assert not stale.exists()
def test_parse_app_size(tmp_path: Path) -> None:
ld = tmp_path / "eagle.flash.4m.ld"
ld.write_text("MEMORY\n{\n irom0_0_seg : org = 0x40201010, len = 0xfeff0\n}\n")
with patch("esphome.build_gen.arduino8266.get_flash_ld_path", return_value=ld):
assert toolchain._parse_app_size(tmp_path, _paths(tmp_path)) == 0xFEFF0
ld.write_text("MEMORY { }\n")
with patch("esphome.build_gen.arduino8266.get_flash_ld_path", return_value=ld):
assert toolchain._parse_app_size(tmp_path, _paths(tmp_path)) is None
# A zero-length segment is bad data, not a budget; warn and drop it
ld.write_text("MEMORY\n{\n irom0_0_seg : org = 0x40201010, len = 0x0\n}\n")
with patch("esphome.build_gen.arduino8266.get_flash_ld_path", return_value=ld):
assert toolchain._parse_app_size(tmp_path, _paths(tmp_path)) is None
with patch(
"esphome.build_gen.arduino8266.get_flash_ld_path",
return_value=tmp_path / "missing.ld",
):
assert toolchain._parse_app_size(tmp_path, _paths(tmp_path)) is None
def test_print_size_summary(tmp_path: Path, capsys: pytest.CaptureFixture[str]) -> None:
with (
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=_SIZE_OUTPUT),
),
patch.object(toolchain, "_parse_app_size", return_value=1044464),
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
out = capsys.readouterr().out
# Exact PlatformIO shape so script/ci_memory_impact_extract.py can parse it
assert "RAM: [==== ] 37.9% (used 31016 bytes from 81920 bytes)" in out
assert "Flash: [==== ] 35.9% (used 375301 bytes from 1044464 bytes)" in out
def test_print_size_summary_missing_size_tool_warns(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""A missing size binary degrades to a warning; the firmware already
linked and must not be discarded."""
with patch.object(
toolchain.subprocess, "run", side_effect=FileNotFoundError("no size")
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
assert "Could not summarize firmware size" in caplog.text
def test_print_size_summary_no_app_size(
tmp_path: Path, capsys: pytest.CaptureFixture[str]
) -> None:
with (
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=_SIZE_OUTPUT),
),
patch.object(toolchain, "_parse_app_size", return_value=None),
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
out = capsys.readouterr().out
# Both lines are skipped together: a RAM line without Flash would skew
# CI's memory-impact sums across builds
assert out == ""
def test_print_size_summary_size_tool_failure(
tmp_path: Path,
capsys: pytest.CaptureFixture[str],
caplog: pytest.LogCaptureFixture,
) -> None:
with patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=1, stdout="", stderr="bad elf"),
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
assert capsys.readouterr().out == ""
assert "Could not summarize firmware size" in caplog.text
def test_get_idedata_delegates(tmp_path: Path) -> None:
with (
patch(
"esphome.build_helpers.idedata.load_or_build_idedata",
return_value={"cc_path": "x"},
) as mock_load,
patch.object(toolchain, "resolve_ccache_path", return_value="/cc/ccache"),
):
assert toolchain.get_idedata() == {"cc_path": "x"}
compile_commands, elf, cache = mock_load.call_args[0]
assert compile_commands.name == "compile_commands.json"
assert elf.name == "firmware.elf"
assert cache.name == "test8266.arduino.json"
# The exact configured launcher string is passed for compile DB parsing
# (resolve_ccache_path returns a str, untouched on every platform)
assert mock_load.call_args.kwargs["launcher"] == "/cc/ccache"
def test_get_idedata_no_ccache(tmp_path: Path) -> None:
with (
patch(
"esphome.build_helpers.idedata.load_or_build_idedata", return_value={}
) as mock_load,
patch.object(toolchain, "resolve_ccache_path", return_value=None),
):
toolchain.get_idedata()
assert mock_load.call_args.kwargs["launcher"] is None
def test_run_compile_skips_compdb_when_ninja_unchanged(tmp_path: Path) -> None:
"""An unchanged build.ninja means the compile DB is already current."""
build_dir = toolchain.get_build_dir()
build_dir.mkdir(parents=True, exist_ok=True)
# write_project (stubbed below) always leaves a build.ninja behind
(build_dir / "build.ninja").write_text("# manifest")
def run(regenerate_expected: bool) -> None:
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project", return_value=False),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout="", stderr=""),
),
patch.object(toolchain, "_write_compile_commands") as mock_compdb,
patch.object(toolchain, "_print_size_summary"),
patch.object(toolchain, "get_idedata"),
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False) == 0
assert mock_compdb.called == regenerate_expected
# Missing compile DB: regenerated even though build.ninja is unchanged
run(regenerate_expected=True)
# Present compile DB + unchanged build.ninja: skipped
(build_dir / "compile_commands.json").write_text("[]")
run(regenerate_expected=False)
def test_print_size_summary_unparsable_section(
tmp_path: Path,
capsys: pytest.CaptureFixture[str],
caplog: pytest.LogCaptureFixture,
) -> None:
"""A totals-relevant section that fails to parse must not produce a
confident wrong number; an irrelevant one only warns."""
bad = _SIZE_OUTPUT.replace(".bss 26504", ".bss abc")
with patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=bad),
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
assert capsys.readouterr().out == ""
assert "Unparsable size output" in caplog.text
caplog.clear()
harmless = _SIZE_OUTPUT + ".broken abc 0\n"
with (
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=harmless),
),
patch.object(toolchain, "_parse_app_size", return_value=1044464),
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
assert "RAM:" in capsys.readouterr().out
assert "Unparsable size output" in caplog.text
def test_print_size_summary_missing_section_skips_summary(
tmp_path: Path,
capsys: pytest.CaptureFixture[str],
caplog: pytest.LogCaptureFixture,
) -> None:
"""A totals section absent from the output must not default to zero."""
without_bss = "\n".join(
line for line in _SIZE_OUTPUT.splitlines() if ".bss" not in line
)
with patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout=without_bss),
):
toolchain._print_size_summary(tmp_path, _paths(tmp_path))
assert capsys.readouterr().out == ""
assert "missing section(s) .bss" in caplog.text
def test_warn_ignored_platformio_options(caplog: pytest.LogCaptureFixture) -> None:
"""Component-added options the native build drops are warned by name;
the honored ones (lib_ignore, f_cpu, ldscript, build_src_flags,
flash_mode) stay quiet."""
CORE.platformio_options = {
"board_build.ldscript": "eagle.flash.4m2m.ld",
"board_build.f_cpu": "160000000L",
"board_build.filesystem": "littlefs",
"board_build.flash_mode": "dio",
"build_src_flags": "-include throw_stubs.h",
"lib_ignore": ["Updater"],
"upload_speed": "460800",
}
toolchain._warn_ignored_platformio_options()
assert "platformio_options->board_build.filesystem is ignored" in caplog.text
assert "native 'arduino' toolchain" in caplog.text
assert "board_build.ldscript is ignored" not in caplog.text
assert "board_build.f_cpu is ignored" not in caplog.text
assert "lib_ignore" not in caplog.text
assert "build_src_flags" not in caplog.text
assert "flash_mode" not in caplog.text
# Component-added upload_speed never gets read under the native
# toolchain, so it must warn
assert "upload_speed" in caplog.text
def test_run_compile_idedata_error_does_not_fail_build(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""An unusable compile DB after a successful build warns, never fails."""
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project"),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout="", stderr=""),
),
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary"),
patch.object(
toolchain,
"get_idedata",
side_effect=EsphomeError("compile database is unusable"),
),
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False) == 0
assert "Could not generate idedata: compile database is unusable" in caplog.text
def test_run_compile_skipped_size_summary_names_consequence(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""A skipped RAM/Flash summary warns about the missing metric; the
per-cause warnings alone are invisible to CI harnesses."""
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project"),
patch.object(
toolchain.subprocess,
"run",
return_value=MagicMock(returncode=0, stdout="", stderr=""),
),
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary", return_value=False),
patch.object(toolchain, "get_idedata", return_value=None),
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False) == 0
assert "Firmware size summary unavailable for this build" in caplog.text
def test_parse_app_size_non_utf8_ld_warns(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""A corrupt (non-UTF-8) linker script degrades to the same warning as
an unreadable one, never a traceback after a successful link."""
paths = _paths(tmp_path)
ld = tmp_path / "corrupt.ld"
ld.write_bytes(b"\xff\xfe not utf8")
with patch("esphome.build_gen.arduino8266.get_flash_ld_path", return_value=ld):
assert toolchain._parse_app_size(tmp_path, paths) is None
assert "Cannot read linker script" in caplog.text
def test_run_compile_failed_probe_runs_full_build(tmp_path: Path) -> None:
"""A failing -n probe (e.g. unknown target from a defective manifest)
falls through to the real build so the error prints attributably."""
probe = MagicMock(returncode=1, stdout="", stderr="")
ok = MagicMock(returncode=0, stdout="", stderr="")
def fake_run(cmd, *args, **kwargs):
return probe if "-n" in cmd else ok
with (
patch.object(framework, "check_and_install", return_value=_paths(tmp_path)),
patch.object(framework, "get_build_env", return_value={}),
patch("esphome.build_gen.arduino8266.write_project", return_value=False),
patch.object(toolchain.subprocess, "run", side_effect=fake_run) as mock_run,
patch.object(toolchain, "_write_compile_commands"),
patch.object(toolchain, "_print_size_summary", return_value=True),
patch.object(toolchain, "get_idedata", return_value={}),
):
assert toolchain.run_compile({CONF_ESPHOME: {}}, verbose=False) == 0
# The real build ran after the failed probe
assert any(
"firmware.ota.bin" in c[0][0] and "-n" not in c[0][0]
for c in mock_run.call_args_list
)
def test_get_idedata_accepts_preresolved_ccache() -> None:
"""run_compile threads its resolved ccache through; the probe must not
run again."""
with (
patch(
"esphome.build_helpers.idedata.load_or_build_idedata",
return_value={"ok": True},
) as mock_build,
patch.object(toolchain, "resolve_ccache_path") as mock_resolve,
):
assert toolchain.get_idedata("/usr/bin/ccache") == {"ok": True}
mock_resolve.assert_not_called()
assert mock_build.call_args.kwargs["launcher"] == "/usr/bin/ccache"
def test_ccache_env_includes_pch_settings() -> None:
"""The native build exports the ccache settings the pch needs."""
with patch.dict(os.environ, {}, clear=True):
env = framework.ccache_env("/usr/bin/ccache")
assert env["CCACHE_SLOPPINESS"] == "pch_defines,time_macros"
assert env["CCACHE_PCH_EXTSUM"] == "true"
def test_ccache_env_pch_disabled() -> None:
with patch.dict(os.environ, {"ESPHOME_PCH_ENABLE": "0"}, clear=True):
env = framework.ccache_env("/usr/bin/ccache")
assert "CCACHE_SLOPPINESS" not in env
assert "CCACHE_PCH_EXTSUM" not in env
def test_ccache_env_respects_user_sloppiness() -> None:
with patch.dict(os.environ, {"CCACHE_SLOPPINESS": "locale"}, clear=True):
env = framework.ccache_env("/usr/bin/ccache")
# The user's tokens survive; the ones the pch needs are unioned on
assert env["CCACHE_SLOPPINESS"] == "locale,pch_defines,time_macros"
assert env["CCACHE_PCH_EXTSUM"] == "true"