fwd/vendor/cxx/tools/buck/prelude/java/java_test.bzl
John Doty 9c435dc440 Vendor dependencies
Let's see how I like this workflow.
2022-12-19 08:38:22 -08:00

136 lines
6.2 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
#
# This source code is licensed under both the MIT license found in the
# LICENSE-MIT file in the root directory of this source tree and the Apache
# License, Version 2.0 found in the LICENSE-APACHE file in the root directory
# of this source tree.
load("@prelude//java:java_library.bzl", "build_java_library")
load("@prelude//java:java_providers.bzl", "get_all_java_packaging_deps_tset")
load("@prelude//java:java_toolchain.bzl", "JavaTestToolchainInfo", "JavaToolchainInfo")
load("@prelude//java/utils:java_utils.bzl", "get_path_separator")
load("@prelude//linking:shared_libraries.bzl", "SharedLibraryInfo", "merge_shared_libraries", "traverse_shared_library_info")
load("@prelude//test/inject_test_run_info.bzl", "inject_test_run_info")
def java_test_impl(ctx: "context") -> ["provider"]:
java_providers = build_java_library(ctx, ctx.attrs.srcs)
external_runner_test_info = build_junit_test(ctx, java_providers.java_library_info, java_providers.java_packaging_info)
return inject_test_run_info(ctx, external_runner_test_info) + [
java_providers.java_library_info,
java_providers.java_packaging_info,
java_providers.template_placeholder_info,
java_providers.default_info,
]
def build_junit_test(
ctx: "context",
tests_java_library_info: "JavaLibraryInfo",
tests_java_packaging_info: "JavaPackagingInfo",
extra_cmds: list.type = [],
extra_classpath_entries: ["artifact"] = []) -> ExternalRunnerTestInfo.type:
java_test_toolchain = ctx.attrs._java_test_toolchain[JavaTestToolchainInfo]
cmd = [ctx.attrs._java_toolchain[JavaToolchainInfo].java_for_tests] + extra_cmds + ctx.attrs.vm_args
classpath = []
if java_test_toolchain.use_java_custom_class_loader:
cmd.append("-Djava.system.class.loader=" + java_test_toolchain.java_custom_class_loader_class)
cmd.extend(java_test_toolchain.java_custom_class_loader_vm_args)
classpath.append(java_test_toolchain.java_custom_class_loader_library_jar)
classpath.extend(
[java_test_toolchain.test_runner_library_jar] +
[
get_all_java_packaging_deps_tset(ctx, java_packaging_infos = [tests_java_packaging_info])
.project_as_args("full_jar_args", ordering = "bfs"),
] +
extra_classpath_entries,
)
labels = ctx.attrs.labels or []
run_from_cell_root = "buck2_run_from_cell_root" in labels
uses_java8 = "run_with_java8" in labels
classpath_args = cmd_args()
if run_from_cell_root:
classpath_args.relative_to(ctx.label.cell_root)
if uses_java8:
# Java 8 does not support using argfiles, and these tests can have huge classpaths so we need another
# mechanism to write the classpath to a file.
# We add "FileClassPathRunner" to the classpath, and then write a line-separated classpath file which we pass
# to the "FileClassPathRunner" as a system variable. The "FileClassPathRunner" then loads all the jars
# from that file onto the classpath, and delegates running the test to the junit test runner.
cmd.extend(["-classpath", cmd_args(java_test_toolchain.test_runner_library_jar)])
classpath_args.add(cmd_args(classpath))
classpath_args_file = ctx.actions.write("classpath_args_file", classpath_args)
cmd.append(cmd_args(classpath_args_file, format = "-Dbuck.classpath_file={}").hidden(classpath_args))
else:
# Java 9+ supports argfiles, so just write the classpath to an argsfile. "FileClassPathRunner" will delegate
# immediately to the junit test runner.
classpath_args.add("-classpath")
classpath_args.add(cmd_args(classpath, delimiter = get_path_separator()))
classpath_args_file = ctx.actions.write("classpath_args_file", classpath_args)
cmd.append(cmd_args(classpath_args_file, format = "@{}").hidden(classpath_args))
if (ctx.attrs.test_type == "junit5"):
cmd.extend(java_test_toolchain.junit5_test_runner_main_class_args)
elif (ctx.attrs.test_type == "testng"):
cmd.extend(java_test_toolchain.testng_test_runner_main_class_args)
else:
cmd.extend(java_test_toolchain.junit_test_runner_main_class_args)
if ctx.attrs.test_case_timeout_ms:
cmd.extend(["--default_test_timeout", ctx.attrs.test_case_timeout_ms])
class_names = ctx.actions.declare_output("class_names")
list_class_names_cmd = cmd_args([
java_test_toolchain.list_class_names[RunInfo],
"--jar",
tests_java_library_info.library_output.full_library,
"--output",
class_names.as_output(),
])
ctx.actions.run(list_class_names_cmd, category = "list_class_names")
cmd.extend(["--test-class-names-file", class_names])
native_libs_env = _get_native_libs_env(ctx)
env = {}
for d in [ctx.attrs.env, native_libs_env]:
for key, value in d.items():
if key in env:
fail("Duplicate key for java_test env: '{}'".format(key))
env[key] = value
test_info = ExternalRunnerTestInfo(
type = "junit",
command = cmd,
env = env,
labels = ctx.attrs.labels,
contacts = ctx.attrs.contacts,
run_from_project_root = not run_from_cell_root,
use_project_relative_paths = not run_from_cell_root,
)
return test_info
def _get_native_libs_env(ctx: "context") -> dict.type:
if not ctx.attrs.use_cxx_libraries:
return {}
if ctx.attrs.cxx_library_whitelist:
shared_library_infos = filter(None, [x.get(SharedLibraryInfo) for x in ctx.attrs.cxx_library_whitelist])
else:
shared_library_infos = filter(None, [x.get(SharedLibraryInfo) for x in ctx.attrs.deps])
shared_library_info = merge_shared_libraries(
ctx.actions,
deps = shared_library_infos,
)
native_linkables = traverse_shared_library_info(shared_library_info)
cxx_library_symlink_tree_dict = {so_name: shared_lib.lib.output for so_name, shared_lib in native_linkables.items()}
cxx_library_symlink_tree = ctx.actions.symlinked_dir("cxx_library_symlink_tree", cxx_library_symlink_tree_dict)
return {"BUCK_LD_SYMLINK_TREE": cxx_library_symlink_tree}