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# Copyright 2020 The Chromium 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("//build/config/android/rules.gni")
declare_args() {
# Used by tests to enable generating build files for GN targets which should
# not compile.
enable_android_nocompile_tests = false
}
# Defines a test suite which checks that the 'test targets' fail to compile. The
# test suite runs 'gn gen' with a custom output directory and attempts to compile
# each test target.
#
# All of the tests should be defined in the same dedicated BUILD.gn file in order
# to minimize the number of targets that are processed by 'gn gen'.
#
# Variables
# tests: List of test configurations. A test configuration has the following
# keys:
# 'target': The GN target which should not compile when
# enable_android_nocompile_tests=true The target should compile when
# enable_android_nocompile_tests=false.
# 'expected_compile_output_regex': Error message regex to search for when compile fails.
# 'nocompile_sources': Source files which do not compile. This ensures that
# the test suite is re-run when one of these files change (as the test
# targets might not depend of the files when
# enable_android_nocompile_tests=false).
template("android_nocompile_test_suite") {
assert(!enable_android_nocompile_tests)
action(target_name) {
testonly = true
script = "//build/android/gyp/nocompile_test.py"
_tests = invoker.tests
_test0 = _tests[0]
_test0_dir = get_label_info(_test0["target"], "dir")
_test0_target_out_dir = get_label_info(_test0["target"], "target_out_dir")
foreach(_test_config, _tests) {
assert(
_test0_dir == get_label_info(_test_config["target"], "dir"),
"To avoid running 'gn gen' for each test, all tests in an android_nocompile_test_suite() should be declared in same BUILD.gn file")
}
deps = []
if (defined(invoker.deps)) {
deps += invoker.deps
}
sources = []
if (defined(invoker.sources)) {
sources += invoker.sources
}
# Depend on compile_java Python scripts so that the action is re-run whenever the script is
# modified.
_pydeps = [ "//build/android/gyp/compile_java.pydeps" ]
if (defined(invoker.pydeps)) {
_pydeps += invoker.pydeps
}
inputs = []
foreach(_pydeps_file, _pydeps) {
_pydeps_file_lines = []
_pydeps_file_lines = read_file(_pydeps_file, "list lines")
_pydeps_entries = []
_pydeps_entries = filter_exclude(_pydeps_file_lines, [ "#*" ])
_pydeps_file_dir = get_path_info(_pydeps_file, "dir")
inputs += rebase_path(_pydeps_entries, ".", _pydeps_file_dir)
}
_json_test_configs = []
foreach(_test_config, _tests) {
_test = _test_config["target"]
deps += [ _test ]
sources += _test_config["nocompile_sources"]
_dep_dir = get_label_info(_test, "dir")
_dep_name = get_label_info(_test, "name")
_json_test_configs += [
{
target = "${_dep_dir}:${_dep_name}"
expect_regex = _test_config["expected_compile_output_regex"]
},
]
}
_config_path = "$target_gen_dir/${target_name}.nocompile_config"
write_file(_config_path, _json_test_configs, "json")
# Compute output directory for no-compile tests based on the directory containing test
# targets instead of based on the test suite target name. This avoids calling 'gn gen' for each
# android_nocompile_test_suite() for test suites whose tests are declared in the same BUILD.gn
# file.
_out_dir = "${_test0_target_out_dir}/nocompile_out"
_stamp_path = "${target_gen_dir}/${target_name}.stamp"
args = [
"--gn-args-path",
"args.gn",
"--out-dir",
rebase_path(_out_dir, root_build_dir),
"--test-configs-path",
rebase_path(_config_path, root_build_dir),
"--stamp",
rebase_path(_stamp_path, root_build_dir),
]
inputs += [ _config_path ]
outputs = [ _stamp_path ]
}
}
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