build/rbe/fuchsia_test.py

#!/usr/bin/env fuchsia-vendored-python
# Copyright 2023 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import os

import unittest
from pathlib import Path
from typing import Iterable
from unittest import mock

import fuchsia

# Most tests here just make sure there are no Python syntax or typing errors.
# There is no need to test change-detection of constant values.


class RemoteExecutableTests(unittest.TestCase):
    def test_linux_x64(self):
        self.assertEqual(
            fuchsia.remote_executable(
                Path("../prebuilt/some/tool/linux-x64/bin/tool1")
            ),
            Path("../prebuilt/some/tool/linux-x64/bin/tool1"),
        )

    def test_mac_arm64(self):
        self.assertEqual(
            fuchsia.remote_executable(
                Path("../prebuilt/some/tool/mac-arm64/bin/tool2")
            ),
            Path("../prebuilt/some/tool/linux-x64/bin/tool2"),
        )


class GCCSupportToolsTests(unittest.TestCase):
    def test_partial_paths_c(self):
        arch = "x86_64"
        objfmt = "elf"
        gcc_install_base = Path("../../some/where/install_gcc")
        version_dir = gcc_install_base / f"libexec/gcc/{arch}-{objfmt}/0.99"
        with mock.patch.object(
            Path, "glob", return_value=iter([version_dir])
        ) as mock_version:
            tools = list(
                fuchsia.gcc_support_tools(
                    gcc_install_base / "bin" / f"{arch}-{objfmt}-gcc",
                    parser=True,
                    assembler=True,
                )
            )
        self.assertEqual({t.name for t in tools}, {"as", "cc1", "crtbegin.o"})
        # we only need crtbegin.o for the remote setup of its parent dir
        for t in tools:
            self.assertIn(gcc_install_base, t.parents)

    def test_partial_paths_cxx(self):
        arch = "powerpc64"
        objfmt = "macho"
        gcc_install_base = Path("../../some/where/install_gcc")
        version_dir = gcc_install_base / f"libexec/gcc/{arch}-{objfmt}/0.99"
        with mock.patch.object(
            Path, "glob", return_value=iter([version_dir])
        ) as mock_version:
            tools = list(
                fuchsia.gcc_support_tools(
                    gcc_install_base / "bin" / f"{arch}-{objfmt}-g++",
                    parser=True,
                    assembler=True,
                )
            )
        self.assertEqual(
            {t.name for t in tools}, {"as", "cc1plus", "crtbegin.o"}
        )
        # we only need crtbegin.o for the remote setup of its parent dir
        for t in tools:
            self.assertIn(gcc_install_base, t.parents)

    def test_partial_paths_cxx_link(self):
        arch = "powerpc64"
        objfmt = "macho"
        gcc_install_base = Path("../../some/where/install_gcc")
        version_dir = gcc_install_base / f"libexec/gcc/{arch}-{objfmt}/0.88"
        with mock.patch.object(
            Path,
            "glob",
            side_effect=[iter([version_dir]), iter([gcc_install_base / "ld"])],
        ) as mock_version:
            tools = list(
                fuchsia.gcc_support_tools(
                    gcc_install_base / "bin" / f"{arch}-{objfmt}-g++",
                    linker=True,
                )
            )
        self.assertEqual(
            {t.name for t in tools},
            {"ld", "collect2", "lto-wrapper", "libgcc.a"},
        )
        # we only need crtbegin.o for the remote setup of its parent dir
        for t in tools:
            self.assertIn(gcc_install_base, t.parents)


class RustStdlibDirTests(unittest.TestCase):
    def test_substitution(self):
        target = "powerpc-apple-darwin8"
        self.assertIn(target, fuchsia.rust_stdlib_subdir(target).parts)


class RustcTargetToSysrootTripleTests(unittest.TestCase):
    def test_known(self):
        for t in (
            "x86_64-linux-gnu",
            "aarch64-linux-gnu",
            "riscv64gc-fuchsia",
            "x86_64-fuchsia",
        ):
            fuchsia.rustc_target_to_sysroot_triple(t)

    def test_unknown(self):
        with self.assertRaises(ValueError):
            fuchsia.rustc_target_to_sysroot_triple("pdp11-alien-vax")


class RustcTargetToClangTargetTests(unittest.TestCase):
    def test_known(self):
        for t in (
            "x86_64-linux-gnu",
            "aarch64-linux-gnu",
            "riscv64gc-unknown-fuchsia",
            "x86_64-unknown-fuchsia",
            "x86_64-apple-darwin",
        ):
            fuchsia.rustc_target_to_clang_target(t)

    def test_unknown(self):
        with self.assertRaises(ValueError):
            fuchsia.rustc_target_to_clang_target("pdp11-alien-vax")


def fake_linker_script_expander(path: Path) -> Iterable[Path]:
    yield path


class RemoteClangCompilerToolchainInputsTests(unittest.TestCase):
    @property
    def _fake_path(self):
        return Path("../fake/path")

    @property
    def _fake_clangdir(self):
        return self._fake_path / "lib" / "clang" / "66"

    def test_no_sanitizers(self):
        with mock.patch.object(
            fuchsia, "_versioned_libclang_dir", return_value=self._fake_clangdir
        ) as mock_clangdir:
            inputs = list(
                fuchsia.remote_clang_compiler_toolchain_inputs(
                    self._fake_path, {}
                )
            )
        self.assertEqual(inputs, [])
        mock_clangdir.assert_called_once_with(self._fake_path)

    def test_asan(self):
        with mock.patch.object(
            fuchsia, "_versioned_libclang_dir", return_value=self._fake_clangdir
        ) as mock_clangdir:
            inputs = list(
                fuchsia.remote_clang_compiler_toolchain_inputs(
                    self._fake_path, {"address"}
                )
            )
        self.assertIn(
            self._fake_clangdir / "share" / "asan_ignorelist.txt", inputs
        )
        mock_clangdir.assert_called_once_with(self._fake_path)

    def test_hwasan(self):
        with mock.patch.object(
            fuchsia, "_versioned_libclang_dir", return_value=self._fake_clangdir
        ) as mock_clangdir:
            inputs = list(
                fuchsia.remote_clang_compiler_toolchain_inputs(
                    self._fake_path, {"hwaddress"}
                )
            )
        self.assertIn(
            self._fake_clangdir / "share" / "hwasan_ignorelist.txt", inputs
        )
        mock_clangdir.assert_called_once_with(self._fake_path)

    def test_asan(self):
        with mock.patch.object(
            fuchsia, "_versioned_libclang_dir", return_value=self._fake_clangdir
        ) as mock_clangdir:
            inputs = list(
                fuchsia.remote_clang_compiler_toolchain_inputs(
                    self._fake_path, {"memory"}
                )
            )
        self.assertIn(
            self._fake_clangdir / "share" / "msan_ignorelist.txt", inputs
        )
        mock_clangdir.assert_called_once_with(self._fake_path)


class RemoteClangLinkerToolchainInputsTests(unittest.TestCase):
    @property
    def _clang_path(self):
        return Path("../path/to/linux-x64/bin/clang")

    def test_select_libclang_rt(self):
        # just test for execution without errors
        with mock.patch.object(
            Path, "glob", return_value=iter([Path("ignore")])
        ) as mock_glob:
            inputs = list(
                fuchsia.remote_clang_linker_toolchain_inputs(
                    self._clang_path,
                    target="x86_64-unknown-linux",
                    shared=False,
                    rtlib="compiler-rt",
                    unwindlib="",
                    profile=True,
                    sanitizers={"address", "leak", "fuzzer"},
                    want_all_libclang_rt=False,
                )
            )
        mock_glob.assert_called()

    def test_want_all_libclang_rt(self):
        # just test for execution without errors
        with mock.patch.object(
            Path, "glob", return_value=iter([Path("ignore")])
        ) as mock_glob:
            inputs = list(
                fuchsia.remote_clang_linker_toolchain_inputs(
                    self._clang_path,
                    target="x86_64-unknown-linux",
                    shared=False,
                    rtlib="compiler-rt",
                    unwindlib="",
                    profile=True,
                    sanitizers={"address", "leak", "fuzzer"},
                    want_all_libclang_rt=True,
                )
            )
        mock_glob.assert_called()


class CSysrootFilesTest(unittest.TestCase):
    def test_list(self):
        with mock.patch.object(
            Path, "is_file", return_value=True
        ) as mock_is_file:
            list(
                fuchsia.c_sysroot_files(
                    sysroot_dir=Path("path/to/built/sysroot"),
                    sysroot_triple="x86_64-linux-foo",
                    linker_script_expander=fake_linker_script_expander,
                    with_libgcc=True,
                )
            )
            list(
                fuchsia.c_sysroot_files(
                    sysroot_dir=Path("path/to/built/sysroot"),
                    sysroot_triple="riscv64-linux-foo",
                    linker_script_expander=fake_linker_script_expander,
                    with_libgcc=True,
                )
            )
            list(
                fuchsia.c_sysroot_files(
                    sysroot_dir=Path("path/to/built/sysroot"),
                    sysroot_triple="aarch64-linux-foo",
                    linker_script_expander=fake_linker_script_expander,
                    with_libgcc=True,
                )
            )


if __name__ == "__main__":
    unittest.main()