Merge "Move Kosmos to its own build module" into main (be8a78c1) · Commits · e / os / android_frameworks_base

packages/SystemUI/Android.bp

+21 −1

Original line number	Diff line number	Diff line
		@@ -196,13 +196,30 @@ filegroup {
		path: "tests/src",
		}

		filegroup {
		name: "kosmos-src",
		srcs: ["tests/utils/kosmos/src/*/.kt"],
		path: "tests/utils/kosmos",
		}

		java_library {
		name: "kosmos",
		host_supported: true,
		srcs: [":kosmos-src"],
		static_libs: [
		"kotlin-reflect",
		"kotlin-stdlib",
		],
		}

		filegroup {
		name: "SystemUI-tests-utils",
		srcs: [
		"tests/utils/src/*/.java",
		"tests/utils/src/*/.kt",
		":kosmos-src",
		],
		path: "tests/utils/src",
		path: "tests/utils",
		}

		filegroup {
		@@ -334,6 +351,7 @@ android_library {
		"kotlin-test",
		"SystemUICustomizationTestUtils",
		"androidx.compose.runtime_runtime",
		"kosmos",
		],
		libs: [
		"android.test.runner",
		@@ -416,6 +434,7 @@ android_robolectric_test {
		"inline-mockito-robolectric-prebuilt",
		"platform-parametric-runner-lib",
		"SystemUICustomizationTestUtils",
		"kosmos",
		],
		libs: [
		"android.test.runner",
		@@ -449,6 +468,7 @@ android_ravenwood_test {
		"androidx.test.uiautomator_uiautomator",
		"androidx.core_core-animation-testing",
		"androidx.test.ext.junit",
		"kosmos",
		],
		libs: [
		"android.test.runner",

packages/SystemUI/tests/utils/src/com/android/systemui/kosmos/Kosmos.kt→packages/SystemUI/tests/utils/kosmos/src/com/android/systemui/kosmos/Kosmos.kt

+97 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* 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 com.android.systemui.kosmos

		import kotlin.reflect.KProperty
		@@ -5,6 +21,7 @@ import kotlin.reflect.KProperty
		// (Historical note: The name Kosmos is meant to invoke "Kotlin", the "Object Mother" pattern
		// (https://martinfowler.com/bliki/ObjectMother.html), and of course the Greek word "kosmos" for
		// the "order of the world" (https://en.wiktionary.org/wiki/%CE%BA%CF%8C%CF%83%CE%BC%CE%BF%CF%82)

		/**
		* Each Kosmos is its own self-contained set of fixtures, which may reference each other. Fixtures
		* can be defined through extension properties in any file:
		@@ -29,9 +46,15 @@ import kotlin.reflect.KProperty
		* )
		* ```
		*/
		class Kosmos {
		private val map: MutableMap<String, Any?> = mutableMapOf()
		private val gotten: MutableSet<String> = mutableSetOf()
		interface Kosmos {
		/**
		* Lookup a fixture in the Kosmos by [name], using [creator] to instantiate and store one if
		* there is none present.
		*/
		fun <T> get(name: String, creator: (Kosmos.() -> T)?): T

		/** Sets the [value] of a fixture with the given [name]. */
		fun set(name: String, value: Any?)

		/**
		* A value in the kosmos that has a single value once it's read. It can be overridden before
		@@ -42,28 +65,33 @@ class Kosmos {
		* If no [creator] parameter is provided, the fixture must be set before use.
		*/
		class Fixture<T>(private val creator: (Kosmos.() -> T)? = null) {
		operator fun getValue(thisRef: Kosmos, property: KProperty<*>): T {
		thisRef.gotten.add(property.name)
		@Suppress("UNCHECKED_CAST")
		if (!thisRef.map.contains(property.name)) {
		if (creator == null) {
		throw IllegalStateException(
		"Fixture ${property.name} has no default, and is read before set."
		)
		} else {
		val nonNullCreator = creator
		// The Kotlin compiler seems to need this odd workaround
		thisRef.map[property.name] = thisRef.nonNullCreator()
		operator fun getValue(thisRef: Kosmos, property: KProperty<*>): T =
		thisRef.get(property.name, creator)

		operator fun setValue(thisRef: Kosmos, property: KProperty<*>, value: T) {
		thisRef.set(property.name, value)
		}
		}
		return thisRef.map[property.name] as T
		}

		operator fun setValue(thisRef: Kosmos, property: KProperty<*>, value: T) {
		check(!thisRef.gotten.contains(property.name)) {
		"Tried to set fixture '${property.name}' after it's already been read."
		/** Constructs a fresh Kosmos. */
		fun Kosmos(): Kosmos = KosmosRegistry()

		private class KosmosRegistry : Kosmos {
		val map: MutableMap<String, Any?> = mutableMapOf()
		val gotten: MutableSet<String> = mutableSetOf()

		override fun <T> get(name: String, creator: (Kosmos.() -> T)?): T {
		gotten.add(name)
		if (name !in map) {
		checkNotNull(creator) { "Fixture $name has no default, and is read before set." }
		map[name] = creator()
		}
		thisRef.map[property.name] = value
		@Suppress("UNCHECKED_CAST") return map[name] as T
		}

		override fun set(name: String, value: Any?) {
		check(name !in gotten) { "Tried to set fixture '$name' after it's already been read." }
		map[name] = value
		}
		}