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# Copyright 2021 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Tests for toolchains.py."""
import os
import pathlib
import pytest # pylint:disable=import-error
import zmake.output_packers
import zmake.project as project
import zmake.toolchains as toolchains
# pylint:disable=redefined-outer-name,unused-argument
@pytest.fixture
def mockfs(monkeypatch, tmp_path: pathlib.Path):
"""Setup a fake fs root for pathlib objects at tmp_path/mockfs."""
mockfs_dir = tmp_path / "mockfs"
mockfs_dir.mkdir()
def map_path(path):
try:
rel_path = path.relative_to(mockfs_dir)
fake = mockfs_dir.joinpath(rel_path)
return fake
except ValueError:
fake = mockfs_dir.joinpath(*path.parts[1:])
return fake
real_stat = pathlib.Path.stat
def stat(path):
return real_stat(map_path(path))
monkeypatch.setattr(pathlib.Path, "stat", stat)
return mockfs_dir
@pytest.fixture
def coreboot_sdk_exists(mockfs):
"""Provide a mock coreboot-sdk."""
coreboot_sdk_dir = mockfs / "opt" / "coreboot-sdk"
coreboot_sdk_dir.mkdir(parents=True)
@pytest.fixture
def llvm_exists(mockfs):
"""Provide a mock llvm."""
llvm_file = mockfs / "usr" / "bin" / "x86_64-pc-linux-gnu-clang"
llvm_file.parent.mkdir(parents=True)
llvm_file.write_text("")
@pytest.fixture
def host_toolchain_exists(mockfs, monkeypatch):
"""Provide a mock host toolchain."""
monkeypatch.setattr(os, "environ", {})
gcc_file = mockfs / "usr" / "bin" / "gcc"
gcc_file.parent.mkdir(parents=True)
gcc_file.write_text("")
@pytest.fixture
def zephyr_exists(mockfs):
"""Provide a mock zephyr sdk."""
zephyr_sdk_version_file = mockfs / "opt" / "zephyr-sdk" / "sdk_version"
zephyr_sdk_version_file.parent.mkdir(parents=True)
zephyr_sdk_version_file.write_text("")
@pytest.fixture
def no_environ(monkeypatch):
"""Clear all environment variables."""
environ = {}
monkeypatch.setattr(os, "environ", environ)
@pytest.fixture
def fake_project(tmp_path):
"""Create a project that can be used in all the tests."""
return project.Project(
project.ProjectConfig(
project_name="foo",
zephyr_board="foo",
supported_toolchains=[
"coreboot-sdk",
"host",
"llvm",
"zephyr",
],
output_packer=zmake.output_packers.RawBinPacker,
project_dir=tmp_path,
),
)
module_paths = {
"ec": pathlib.Path("/mnt/host/source/src/platform/ec"),
}
def test_coreboot_sdk(fake_project: project.Project, coreboot_sdk_exists):
"""Test that the corebook sdk can be found."""
chain = fake_project.get_toolchain(module_paths)
assert isinstance(chain, toolchains.CorebootSdkToolchain)
config = chain.get_build_config()
assert config.cmake_defs == {
"ZEPHYR_TOOLCHAIN_VARIANT": "coreboot-sdk",
"TOOLCHAIN_ROOT": "/mnt/host/source/src/platform/ec/zephyr",
"COREBOOT_SDK_ROOT": "/opt/coreboot-sdk",
}
def test_llvm(fake_project, llvm_exists):
"""Test that llvm can be found."""
chain = fake_project.get_toolchain(module_paths)
assert isinstance(chain, toolchains.LlvmToolchain)
config = chain.get_build_config()
assert config.cmake_defs == {
"ZEPHYR_TOOLCHAIN_VARIANT": "llvm",
"TOOLCHAIN_ROOT": "/mnt/host/source/src/platform/ec/zephyr",
}
def test_zephyr(fake_project: project.Project, zephyr_exists, no_environ):
"""Test that the zephyr sdk can be found in a standard location."""
chain = fake_project.get_toolchain(module_paths)
assert isinstance(chain, toolchains.ZephyrToolchain)
config = chain.get_build_config()
assert config.cmake_defs == {
"ZEPHYR_TOOLCHAIN_VARIANT": "zephyr",
"ZEPHYR_SDK_INSTALL_DIR": str(pathlib.Path("/opt/zephyr-sdk")),
}
def test_zephyr_from_env(mockfs, monkeypatch, fake_project):
"""Test that the zephyr sdk can be found from env variable."""
zephyr_sdk_path = mockfs / "zsdk"
zephyr_sdk_path.mkdir()
environ = {"ZEPHYR_SDK_INSTALL_DIR": str(zephyr_sdk_path)}
monkeypatch.setattr(os, "environ", environ)
chain = fake_project.get_toolchain(module_paths)
assert isinstance(chain, toolchains.ZephyrToolchain)
config = chain.get_build_config()
assert config.cmake_defs == {
"ZEPHYR_TOOLCHAIN_VARIANT": "zephyr",
"ZEPHYR_SDK_INSTALL_DIR": str(zephyr_sdk_path),
}
def test_host_toolchain(fake_project, host_toolchain_exists):
"""Test that the host toolchain can be found."""
chain = fake_project.get_toolchain(module_paths)
assert isinstance(chain, toolchains.HostToolchain)
config = chain.get_build_config()
assert config.cmake_defs == {
"ZEPHYR_TOOLCHAIN_VARIANT": "host",
}
def test_toolchain_override(mockfs, fake_project):
"""Test that the toolchain can be overridden."""
chain = fake_project.get_toolchain(module_paths, override="foo")
config = chain.get_build_config()
assert isinstance(chain, toolchains.GenericToolchain)
assert config.cmake_defs == {"ZEPHYR_TOOLCHAIN_VARIANT": "foo"}
def test_generic_toolchain():
"""Verify that GenericToolchain.probe() returns False."""
chain = toolchains.GenericToolchain("name")
assert not chain.probe()
def test_no_toolchains(fake_project: project.Project, mockfs, no_environ):
"""Check for error when there are no toolchains."""
with pytest.raises(
OSError, match=r"No supported toolchains could be found on your system"
):
fake_project.get_toolchain(module_paths)
def test_override_without_sdk(
fake_project: project.Project, mockfs, no_environ
):
"""Check for error override is set to zephyr, but it can't be found."""
chain = fake_project.get_toolchain(module_paths, override="zephyr")
with pytest.raises(
RuntimeError, match=r"No installed Zephyr SDK was found"
):
chain.get_build_config()
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