# Copyright 2019 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("//build/packages/prebuilt_test_package.gni")

# Defines prebuilt package tests based on the contents in a prebuilt test manifest.
#
# Vendors are required to upload one or more test manifest JSON files in the same
# CIPD package as their prebuilt FAR tests. We use these manifests for determining
# which test packages to enable and how each test package is run.
#
# The test manifest should contain a JSON list of objects. Each object's schema is:
#
#   package (required)
#     The name of the Fuchsia package
#     Type: string
#
#   component_name (required)
#     The name of the test component.
#     Type: string
#
#   archive_name (optional)
#     The name of the archive file containing the Fuchsia package, relative to
#     $archive_dir, below.
#     Type: string
#     Default: $package
#
#   log_settings (optional)
#     The properties of logs produced by the specific test. Overwrites the manifest's
#     log_settings for a particular test.
#     See //build/testing/test_spec.gni for more details.
#     Type: JSON
#
# Parameters
#
#   archive_dir (required)
#     [string] Path to directory containing prebuilt archives and test_manifest.json
#
#   environments (optional, default: [ { dimensions = { device_type = "QEMU" } } ])
#     [list of scopes] Device environments in which the test should run.
#
#     Environment scope is defined in //build/testing/test_spec.gni
#
#   disabled_tests (optional)
#     [list of scopes] List of scopes containing a "component_name" and either
#     a "package" or "archive_name" to disable.
#
#   manifest_name (optional, default: test_manifest.json):
#     [string] Name of the test manifest file.
#
#   log_settings (optional)
#     The properties of logs produced by the tests defined in the manifest.
#     See //build/testing/test_spec.gni for more details.
#     Type: JSON
#
template("prebuilt_test_manifest") {
  assert(defined(invoker.archive_dir), "archive_dir must be defined.")

  manifest_name = "test_manifest.json"
  if (defined(invoker.manifest_name)) {
    manifest_name = invoker.manifest_name
  }
  manifest_path = "${invoker.archive_dir}/${manifest_name}"
  manifest = read_file(manifest_path, "json")
  test_targets = []
  foreach(test, manifest) {
    test_package = test.package
    component_name = test.component_name
    archive_name = test_package
    if (defined(test.archive_name)) {
      archive_name = test.archive_name
    }
    test_disabled = false
    if (defined(invoker.disabled_tests)) {
      foreach(disabled_test, invoker.disabled_tests) {
        if (component_name == disabled_test.component_name) {
          if (defined(disabled_test.archive_name) &&
              archive_name == disabled_test.archive_name) {
            test_disabled = true
          } else if (test_package == disabled_test.package) {
            test_disabled = true
          }
        }
      }
    }
    if (!test_disabled) {
      prebuilt_test_package(test_package) {
        archive = "${invoker.archive_dir}/${archive_name}.far"
        component_name = component_name
        forward_variables_from(invoker,
                               [
                                 "deps",
                                 "environments",
                               ])
        if (defined(test.log_settings)) {
          log_settings = test.log_settings
          not_needed(invoker, [ "log_settings" ])
        } else if (defined(invoker.log_settings)) {
          log_settings = invoker.log_settings
        }
      }
      test_targets += [ ":${test_package}" ]
    }
  }

  group(target_name) {
    testonly = true
    forward_variables_from(invoker, [ "visibility" ])
    public_deps = test_targets
  }
}