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engine/testing/testing.gni
T
Chris Bracken 67cd7d4d3b Compile embedder unit test Dart to kernel (#7231)
As of the migration to Dart 2, it has been necessary to compile Dart to
kernel prior to execution. The embedder currently requires that the
resulting kernel file be named `kernel_blob.bin` and be located at the
root of the assets directory passed to the embedder API.

This patch updates the test_fixtures build rule to perform a kernel
compile using frontend_server, outputting `kernel_blob.bin` to
`fixtures/test_target_name` directory, and updates the embedder
unittests to specify the kernel file rather than the Dart source file.

Since the kernel compiler requires a `main()` function to be defined, it
also updates `simple_main.dart` from runtime_unittests to define
`main()` rather than `simple_main()`.

This also updates all existing sub-targets to be testonly.

This relands commit ac9e521a1d, which was
reverted in commit 4941125829. Rather than
running as prebuilt_dart_action, we use dart_action to ensure the
frontend snapshot it compatible with the VM on which it's executed.
2018-12-16 12:23:18 -08:00

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# Copyright 2013 The Flutter 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("//third_party/dart/build/dart/dart_action.gni")
# Builds test fixtures for a unit test.
#
# Generates a directory structure containing an assets directory and the Dart
# code to execute compiled to kernel, emitted to assets/kernel_blob.bin.
template("test_fixtures") {
testonly = true
assert(defined(invoker.fixtures), "Test fixtures must be specified.")
fixtures_location = "$target_gen_dir/$target_name/assets"
fixtures_location_file = "$target_gen_dir/$target_name/test_fixtures_location.cc"
fixtures_name_target_name = target_name + "_gen_fixtures_name"
action(fixtures_name_target_name) {
script = "$flutter_root/testing/build/gen_fixtures_location_symbol.py"
outputs = [
fixtures_location_file,
]
args = [
"--fixtures_location_file",
rebase_path(fixtures_location_file),
"--fixtures_location",
rebase_path(fixtures_location),
]
}
fixtures_source_set_target_name = target_name + "_gen_fixtures_source_set"
source_set(fixtures_source_set_target_name) {
testonly = true
sources = [
fixtures_location_file,
]
deps = [
":$fixtures_name_target_name",
]
}
fixtures_kernel_target_name = target_name + "_kernel"
dart_action(fixtures_kernel_target_name) {
testonly = true
script = "$root_out_dir/frontend_server.dart.snapshot"
fixture_paths = []
foreach(fixture, invoker.fixtures) {
fixture_paths += [ rebase_path(fixture) ]
}
inputs = fixture_paths
outputs = ["$fixtures_location/kernel_blob.bin"]
args = [
"--sdk-root", rebase_path("$root_out_dir/flutter_patched_sdk"),
"--target", "flutter",
"--output-dill", rebase_path("$fixtures_location/kernel_blob.bin"),
] + fixture_paths
deps = [
"//third_party/dart/utils/kernel-service:frontend_server"
]
}
group(target_name) {
testonly = true
deps = [
":$fixtures_kernel_target_name",
":$fixtures_source_set_target_name",
]
}
}