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StartupBenchmark.kt
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StartupBenchmark.kt
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/*
* Copyright 2022 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
*
* https://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.google.samples.apps.nowinandroid.startup
import androidx.benchmark.macro.BaselineProfileMode.Disable
import androidx.benchmark.macro.BaselineProfileMode.Require
import androidx.benchmark.macro.CompilationMode
import androidx.benchmark.macro.StartupMode.COLD
import androidx.benchmark.macro.StartupTimingMetric
import androidx.benchmark.macro.junit4.MacrobenchmarkRule
import androidx.test.internal.runner.junit4.AndroidJUnit4ClassRunner
import com.google.samples.apps.nowinandroid.PACKAGE_NAME
import com.google.samples.apps.nowinandroid.allowNotifications
import com.google.samples.apps.nowinandroid.foryou.forYouWaitForContent
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
/**
* Enables app startups from various states of baseline profile or [CompilationMode]s.
* Run this benchmark from Studio to see startup measurements, and captured system traces
* for investigating your app's performance from a cold state.
*/
@RunWith(AndroidJUnit4ClassRunner::class)
class StartupBenchmark {
@get:Rule
val benchmarkRule = MacrobenchmarkRule()
@Test
fun startupNoCompilation() = startup(CompilationMode.None())
@Test
fun startupBaselineProfileDisabled() = startup(
CompilationMode.Partial(baselineProfileMode = Disable, warmupIterations = 1),
)
@Test
fun startupBaselineProfile() = startup(CompilationMode.Partial(baselineProfileMode = Require))
@Test
fun startupFullCompilation() = startup(CompilationMode.Full())
private fun startup(compilationMode: CompilationMode) = benchmarkRule.measureRepeated(
packageName = PACKAGE_NAME,
metrics = listOf(StartupTimingMetric()),
compilationMode = compilationMode,
iterations = 10,
startupMode = COLD,
setupBlock = {
pressHome()
allowNotifications()
},
) {
startActivityAndWait()
allowNotifications()
// Waits until the content is ready to capture Time To Full Display
forYouWaitForContent()
}
}