# Copyright 2015 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.

# ==============================================================================
# TEST SETUP
# ==============================================================================

if (is_android) {
  import("//build/config/android/config.gni")
  import("//build/config/android/extract_unwind_tables.gni")
  import("//build/config/android/rules.gni")
  import("//build/config/sanitizers/sanitizers.gni")
}

if (is_fuchsia) {
  import("//build/config/chromecast_build.gni")
  import("//build/config/fuchsia/generate_runner_scripts.gni")
  import("//build/config/fuchsia/package.gni")
}

if (is_chromeos) {
  import("//build/config/chromeos/rules.gni")
}

# Define a test as an executable (or apk on Android) with the "testonly" flag
# set.
# Variable:
#   use_raw_android_executable: Use executable() rather than android_apk().
#   use_native_activity: Test implements ANativeActivity_onCreate().
template("test") {
  if (is_android) {
    _use_raw_android_executable = defined(invoker.use_raw_android_executable) &&
                                  invoker.use_raw_android_executable

    # output_name is used to allow targets with the same name but in different
    # packages to still produce unique runner scripts.
    _output_name = invoker.target_name
    if (defined(invoker.output_name)) {
      _output_name = invoker.output_name
    }

    _test_runner_target = "${_output_name}__test_runner_script"
    _wrapper_script_vars = [
      "ignore_all_data_deps",
      "shard_timeout",
    ]

    assert(_use_raw_android_executable || enable_java_templates)

    if (_use_raw_android_executable) {
      _exec_target = "${target_name}__exec"
      _dist_target = "${target_name}__dist"
      _exec_output =
          "$target_out_dir/${invoker.target_name}/${invoker.target_name}"

      executable(_exec_target) {
        # Configs will always be defined since we set_defaults in BUILDCONFIG.gn.
        configs = []
        data_deps = []
        forward_variables_from(invoker,
                               "*",
                               _wrapper_script_vars + [ "extra_dist_files" ])
        testonly = true

        # Thanks to the set_defaults() for test(), configs are initialized with
        # the default shared_library configs rather than executable configs.
        configs -= [
          "//build/config:shared_library_config",
          "//build/config/android:hide_all_but_jni",
        ]
        configs += [ "//build/config:executable_config" ]

        # Don't output to the root or else conflict with the group() below.
        output_name = rebase_path(_exec_output, root_out_dir)
      }

      create_native_executable_dist(_dist_target) {
        testonly = true
        dist_dir = "$root_out_dir/$target_name"
        binary = _exec_output
        deps = [
          ":$_exec_target",
        ]
        if (defined(invoker.extra_dist_files)) {
          extra_files = invoker.extra_dist_files
        }
      }
    } else {
      _library_target = "${target_name}__library"
      _apk_target = "${target_name}__apk"
      _apk_specific_vars = [
        "android_manifest",
        "android_manifest_dep",
        "enable_multidex",
        "product_config_java_packages",
        "min_sdk_version",
        "proguard_configs",
        "proguard_enabled",
        "shared_resources",
        "srcjar_deps",
        "target_sdk_version",
        "use_default_launcher",
        "use_native_activity",
      ]

      # Adds the unwind tables from unstripped binary as an asset file in the
      # apk, if |add_unwind_tables_in_apk| is specified by the test.
      if (defined(invoker.add_unwind_tables_in_apk) &&
          invoker.add_unwind_tables_in_apk) {
        _unwind_table_asset_name = "${target_name}_unwind_assets"
        unwind_table_asset(_unwind_table_asset_name) {
          testonly = true
          library_target = _library_target
          deps = [
            ":$_library_target",
          ]
        }
      }

      shared_library(_library_target) {
        # Configs will always be defined since we set_defaults in BUILDCONFIG.gn.
        configs = []  # Prevent list overwriting warning.
        configs = invoker.configs
        testonly = true

        deps = []
        forward_variables_from(
            invoker,
            "*",
            _apk_specific_vars + _wrapper_script_vars + [ "visibility" ])

        if (!defined(invoker.use_default_launcher) ||
            invoker.use_default_launcher) {
          deps += [ "//testing/android/native_test:native_test_native_code" ]
        }
      }
      unittest_apk(_apk_target) {
        forward_variables_from(invoker, _apk_specific_vars)
        shared_library = ":$_library_target"
        apk_name = invoker.target_name
        if (defined(invoker.output_name)) {
          apk_name = invoker.output_name
          install_script_name = "install_${invoker.output_name}"
        }

        if (defined(invoker.deps)) {
          deps = invoker.deps
        } else {
          deps = []
        }

        # Add the Java classes so that each target does not have to do it.
        deps += [ "//base/test:test_support_java" ]

        if (defined(_unwind_table_asset_name)) {
          deps += [ ":${_unwind_table_asset_name}" ]
        }
      }
    }

    test_runner_script(_test_runner_target) {
      forward_variables_from(invoker, _wrapper_script_vars)

      if (_use_raw_android_executable) {
        executable_dist_dir = "$root_out_dir/$_dist_target"
      } else {
        apk_target = ":$_apk_target"
        incremental_apk = incremental_install

        # Dep needed for the test runner .runtime_deps file to pick up data
        # deps from the forward_variables_from(invoker, "*") on the library.
        data_deps = [
          ":$_library_target",
        ]
      }
      test_name = _output_name
      test_suite = _output_name
      test_type = "gtest"
    }

    # Create a wrapper script rather than using a group() in order to ensure
    # "ninja $target_name" always works. If this was a group(), then GN would
    # not create a top-level alias for it if a target exists in another
    # directory with the same $target_name.
    # Also - bots run this script directly for "components_perftests".
    generate_wrapper(target_name) {
      testonly = true
      executable = "$root_build_dir/bin/run_$_output_name"
      wrapper_script = "$root_build_dir/$_output_name"
      deps = [
        ":$_test_runner_target",
      ]
      if (_use_raw_android_executable) {
        deps += [ ":$_dist_target" ]
      } else {
        # Dep needed for the swarming .isolate file to pick up data
        # deps from the forward_variables_from(invoker, "*") on the library.
        deps += [
          ":$_apk_target",
          ":$_library_target",
        ]
      }
    }
  } else if (is_fuchsia) {
    _output_name = invoker.target_name
    _pkg_target = "${_output_name}_pkg"
    _exec_target = "${_output_name}__exec"

    fuchsia_package_runner(target_name) {
      testonly = true
      forward_variables_from(invoker,
                             [
                               "use_test_server",
                               "package_deps",
                             ])
      runner_script = "//build/fuchsia/test_runner.py"
      package = ":$_pkg_target"
      package_name_override = _output_name

      deps = [
        "//testing/buildbot/filters:fuchsia_filters",
      ]
    }

    fuchsia_package(_pkg_target) {
      testonly = true
      forward_variables_from(invoker, [ "manifest" ])
      binary = ":$_exec_target"
      package_name_override = _output_name
    }

    executable(_exec_target) {
      forward_variables_from(invoker, "*")
      testonly = true
      output_name = _exec_target
    }
  } else if (is_ios) {
    import("//build/config/ios/ios_sdk.gni")
    import("//build/config/ios/rules.gni")

    declare_args() {
      # Keep the unittest-as-xctest functionality defaulted to off until the
      # bots are updated to handle it properly.
      # TODO(crbug.com/1001667): Remove this arg once the iOS test runner
      # supports running unittests with xctest.
      enable_run_ios_unittests_with_xctest = false
    }

    _test_target = target_name
    _resources_bundle_data = target_name + "_resources_bundle_data"

    bundle_data(_resources_bundle_data) {
      visibility = [ ":$_test_target" ]
      sources = [
        "//testing/gtest_ios/Default.png",
      ]
      outputs = [
        "{{bundle_resources_dir}}/{{source_file_part}}",
      ]
    }

    if (enable_run_ios_unittests_with_xctest) {
      ios_test_target_type = "ios_xctest_test"
    } else {
      ios_test_target_type = "ios_app_bundle"
    }

    target(ios_test_target_type, _test_target) {
      testonly = true

      if (enable_run_ios_unittests_with_xctest) {
        xctest_module_target = "//base/test:google_test_runner"
      }

      # See above call.
      set_sources_assignment_filter([])
      forward_variables_from(invoker, "*", [ "testonly" ])

      # Provide sensible defaults in case invoker did not define any of those
      # required variables.
      if (!defined(info_plist) && !defined(info_plist_target)) {
        info_plist = "//testing/gtest_ios/unittest-Info.plist"
      }

      _bundle_id_suffix = "${target_name}"

      if (!defined(extra_substitutions)) {
        extra_substitutions = []
      }
      extra_substitutions += [ "GTEST_BUNDLE_ID_SUFFIX=$_bundle_id_suffix" ]

      if (!defined(bundle_deps)) {
        bundle_deps = []
      }
      bundle_deps += [ ":$_resources_bundle_data" ]
    }
  } else if (is_chromeos && is_chromeos_device) {
    # Building for a cros board (ie: not linux-chromeos).

    _gen_runner_target = "${target_name}__runner"
    _runtime_deps_file =
        "$root_out_dir/gen.runtime/" + get_label_info(target_name, "dir") +
        "/" + get_label_info(target_name, "name") + ".runtime_deps"

    generate_runner_script(_gen_runner_target) {
      testonly = true
      generated_script = "$root_build_dir/bin/run_" + invoker.target_name
      test_exe = invoker.target_name
      runtime_deps_file = _runtime_deps_file
    }

    executable(target_name) {
      forward_variables_from(invoker, "*")
      if (!defined(deps)) {
        deps = []
      }
      if (!defined(data)) {
        data = []
      }

      # We use a special trigger script for CrOS hardware tests.
      data += [ "//testing/trigger_scripts/chromeos_device_trigger.py" ]

      testonly = true
      output_name = target_name
      write_runtime_deps = _runtime_deps_file
      data += [ _runtime_deps_file ]
      deps += [ ":$_gen_runner_target" ]
    }
  } else {
    executable(target_name) {
      forward_variables_from(invoker, "*")
      if (!defined(deps)) {
        deps = []
      }

      if (is_win) {
        # Initializing CFG data during process creation is a significant
        # bottleneck for large test binaries, and CFG is not needed for tests,
        # so disable it. See https://crbug.com/950923 for details.
        configs -= [ "//build/config/win:cfi_linker" ]
      }
      testonly = true
      deps += [
        # Give tests the default manifest on Windows (a no-op elsewhere).
        "//build/win:default_exe_manifest",
      ]
    }
  }
}

# Test defaults.
set_defaults("test") {
  if (is_android) {
    configs = default_shared_library_configs
    configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
    configs += [ "//build/config/android:hide_all_but_jni" ]
  } else {
    configs = default_executable_configs
  }
}