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path: root/filesystem/filesystem_test.go
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// Copyright 2021 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package filesystem

import (
	"os"
	"testing"

	"android/soong/android"
	"android/soong/cc"
)

func TestMain(m *testing.M) {
	os.Exit(m.Run())
}

var fixture = android.GroupFixturePreparers(
	android.PrepareForIntegrationTestWithAndroid,
	cc.PrepareForIntegrationTestWithCc,
	PrepareForTestWithFilesystemBuildComponents,
)

func TestFileSystemDeps(t *testing.T) {
	result := fixture.RunTestWithBp(t, `
		android_filesystem {
			name: "myfilesystem",
		}
	`)

	// produces "myfilesystem.img"
	result.ModuleForTests("myfilesystem", "android_common").Output("myfilesystem.img")
}

func TestFileSystemFillsLinkerConfigWithStubLibs(t *testing.T) {
	result := fixture.RunTestWithBp(t, `
		android_system_image {
			name: "myfilesystem",
			deps: [
				"libfoo",
				"libbar",
			],
			linker_config_src: "linker.config.json",
		}

		cc_library {
			name: "libfoo",
			stubs: {
				symbol_file: "libfoo.map.txt",
			},
		}

		cc_library {
			name: "libbar",
		}
	`)

	module := result.ModuleForTests("myfilesystem", "android_common")
	output := module.Output("system/etc/linker.config.pb")

	android.AssertStringDoesContain(t, "linker.config.pb should have libfoo",
		output.RuleParams.Command, "libfoo.so")
	android.AssertStringDoesNotContain(t, "linker.config.pb should not have libbar",
		output.RuleParams.Command, "libbar.so")
}

func registerComponent(ctx android.RegistrationContext) {
	ctx.RegisterModuleType("component", componentFactory)
}

func componentFactory() android.Module {
	m := &component{}
	m.AddProperties(&m.properties)
	android.InitAndroidArchModule(m, android.DeviceSupported, android.MultilibCommon)
	return m
}

type component struct {
	android.ModuleBase
	properties struct {
		Install_copy_in_data []string
	}
}

func (c *component) GenerateAndroidBuildActions(ctx android.ModuleContext) {
	output := android.PathForModuleOut(ctx, c.Name())
	dir := android.PathForModuleInstall(ctx, "components")
	ctx.InstallFile(dir, c.Name(), output)

	dataDir := android.PathForModuleInPartitionInstall(ctx, "data", "components")
	for _, d := range c.properties.Install_copy_in_data {
		ctx.InstallFile(dataDir, d, output)
	}
}

func TestFileSystemGathersItemsOnlyInSystemPartition(t *testing.T) {
	f := android.GroupFixturePreparers(fixture, android.FixtureRegisterWithContext(registerComponent))
	result := f.RunTestWithBp(t, `
		android_system_image {
			name: "myfilesystem",
			multilib: {
				common: {
					deps: ["foo"],
				},
			},
			linker_config_src: "linker.config.json",
		}
		component {
			name: "foo",
			install_copy_in_data: ["bar"],
		}
	`)

	module := result.ModuleForTests("myfilesystem", "android_common").Module().(*systemImage)
	android.AssertDeepEquals(t, "entries should have foo only", []string{"components/foo"}, module.entries)
}