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MBS-11302 Stabilize flaky tests (#1110)
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@eugene-krivobokov
eugene-krivobokov authored Jun 30, 2021
1 parent a7cded8 commit a87be40
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Showing 5 changed files with 45 additions and 105 deletions.
2 changes: 1 addition & 1 deletion libraries/src/main/kotlin/com/avito/android/ExternalLibrariesExtension.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@ abstract class ExternalLibrariesExtension @Inject constructor(private val provid
val kotlinPlugin = "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
val androidGradlePlugin = "com.android.tools.build:gradle:$androidGradlePluginVersion"
val nebulaIntegTest = "com.netflix.nebula:nebula-project-plugin:$nebulaIntegTestVersion"
val gradleTestRetryPlugin = "org.gradle:test-retry-gradle-plugin:1.2.1"
val gradleTestRetryPlugin = "org.gradle:test-retry-gradle-plugin:1.3.1"

val androidXTestRunner = "androidx.test:runner:${Versions.androidXTest}"
val testOrchestrator = "androidx.test:orchestrator:${Versions.androidXTest}"
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1 change: 1 addition & 0 deletions subprojects/common/junit-utils/src/main/java/com/avito/test/Flaky.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ package com.avito.test
* Unstable test marker.
* It's used for retry logic.
*/
@Retention(AnnotationRetention.BINARY)
annotation class Flaky(
val reason: String
)
47 changes: 19 additions & 28 deletions ...adleTest/kotlin/com/avito/android/plugin/build_metrics/cache/HttpBuildCacheMetricsTest.kt
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
package com.avito.android.plugin.build_metrics.cache

import com.avito.android.plugin.build_metrics.assertHasMetric
import com.avito.android.plugin.build_metrics.assertNoMetric
import com.avito.android.plugin.build_metrics.statsdMetrics
import com.avito.android.stats.CountMetric
import com.avito.android.stats.StatsMetric
import com.avito.test.gradle.TestResult
import com.google.common.truth.Truth.assertThat
import com.google.common.truth.Truth.assertWithMessage
import org.gradle.testkit.runner.TaskOutcome
import org.junit.jupiter.api.DynamicTest
import org.junit.jupiter.api.TestFactory
Expand Down Expand Up @@ -45,7 +45,6 @@ internal class HttpBuildCacheMetricsTest : HttpBuildCacheTestFixture() {

private class TestCase(
val name: String,
val enabled: Boolean = true,
val loadStatus: Int,
val storeStatus: Int,
val assertion: (result: TestResult) -> Unit
Expand All @@ -60,63 +59,43 @@ internal class HttpBuildCacheMetricsTest : HttpBuildCacheTestFixture() {
result.assertNoMetric<StatsMetric>(".build.cache.errors.")
}
),
// TODO: this case is flaky
// If it's failed, please add info to MBS-11302
TestCase(
name = "load error - 500 response",
enabled = false,
loadStatus = 500,
storeStatus = 200,
assertion = { result ->
result.assertHasMetric<CountMetric>(".build.cache.errors.load.500").also {
assertThat(it.delta).isEqualTo(1)
}
result.assertHasEvents(".build.cache.errors.load.500")
}
),
// TODO: this case is flaky
// If it's failed, please add info to MBS-11302
TestCase(
name = "store error - 500 response",
enabled = false,
loadStatus = 404,
storeStatus = 500,
assertion = { result ->
result.assertHasMetric<CountMetric>(".build.cache.errors.store.500").also {
assertThat(it.delta).isEqualTo(1)
}
result.assertHasEvents(".build.cache.errors.store.500")
}
),
// TODO: this case is flaky
// If it's failed, please add info to MBS-11302
TestCase(
name = "store error - unknown error",
enabled = false,
loadStatus = 404,
storeStatus = invalidHttpStatus,
assertion = { result ->
result.assertHasMetric<CountMetric>(".build.cache.errors.store.unknown").also {
assertThat(it.delta).isEqualTo(1)
}
result.assertHasEvents(".build.cache.errors.store.unknown")
}
),
// TODO: this case is flaky
// If it's failed, please add info to MBS-11302
TestCase(
name = "load error - unknown error",
enabled = false,
loadStatus = invalidHttpStatus,
storeStatus = 200,
assertion = { result ->
result.assertHasMetric<CountMetric>(".build.cache.errors.load.unknown").also {
assertThat(it.delta).isEqualTo(1)
}
result.assertHasEvents(".build.cache.errors.load.unknown")
}
),
)

@TestFactory
fun `remote cache errors`(): List<DynamicTest> {
return cases.filter { it.enabled }.map { case ->
return cases.map { case ->
DynamicTest.dynamicTest(case.name) {
setup()

Expand All @@ -136,6 +115,18 @@ internal class HttpBuildCacheMetricsTest : HttpBuildCacheTestFixture() {
}
}
}

private fun TestResult.assertHasEvents(path: String) {
val metrics = statsdMetrics()
val filtered = metrics
.filterIsInstance(CountMetric::class.java)
.filter {
it.name.toString().contains(path)
}

assertWithMessage("Expected metrics ($path) in $metrics. Logs: $output")
.that(filtered.size).isAtLeast(1)
}
}

private const val invalidHttpStatus = -1
8 changes: 7 additions & 1 deletion ...adleTest/kotlin/com/avito/android/plugin/build_metrics/cache/HttpBuildCacheTestFixture.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,12 @@ internal abstract class HttpBuildCacheTestFixture {
protected fun build(vararg args: String) =
BuildMetricsRunner(projectDir)
.build(
args.toList().plus("--build-cache")
args.toList().plus(listOf(
"--build-cache",
// Cache errors can happen for Kotlin DSL scripts.
// It disables cache before applying the plugin for metrics
// This is why we have to intercept all errors in tests
"-Dorg.gradle.unsafe.build-cache.remote-continue-on-error=true"
))
)
}
92 changes: 17 additions & 75 deletions ...h/critical-path/src/gradleTest/kotlin/com/avito/android/critical_path/CriticalPathTest.kt
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
package com.avito.android.critical_path

import com.avito.android.critical_path.internal.CriticalPathReport
import com.avito.test.Flaky
import com.avito.test.gradle.TestResult
import com.avito.test.gradle.gradlew
import com.google.common.truth.Truth.assertThat
Expand All @@ -12,7 +11,9 @@ import org.junit.jupiter.api.Test
import org.junit.jupiter.api.io.TempDir
import java.io.File

@Flaky(reason = "Will be stabilized in MBS-11302")
/**
* These tests check Gradle integration scenarios but not critical path logic itself.
*/
internal class CriticalPathTest {

private lateinit var projectDir: File
Expand Down Expand Up @@ -71,11 +72,11 @@ internal class CriticalPathTest {
fun `dependsOn dependent task - path has a dependent task`() {
setupTasks(
"""
${delayTaskDeclaration()}
${customTaskDeclaration()}
tasks.register("first", DelayTask::class.java)
tasks.register("first", CustomTask::class.java)
tasks.register("second", DelayTask::class.java) {
tasks.register("second", CustomTask::class.java) {
dependsOn(":first")
}
""".trimIndent()
Expand All @@ -90,11 +91,11 @@ internal class CriticalPathTest {
fun `mustRunAfter dependent task - path has a dependent task`() {
setupTasks(
"""
${delayTaskDeclaration()}
${customTaskDeclaration()}
tasks.register("first", DelayTask::class.java)
tasks.register("first", CustomTask::class.java)
tasks.register("second", DelayTask::class.java) {
tasks.register("second", CustomTask::class.java) {
shouldRunAfter(":first")
}
""".trimIndent()
Expand All @@ -111,72 +112,14 @@ internal class CriticalPathTest {
// no op
}

@Disabled("Fails constantly")
@Test
fun `independent routes - path has the longest one`() {
setupTasks(
"""
${delayTaskDeclaration()}
tasks.register("short_first", DelayTask::class.java) {
durationMs.set(0)
}
tasks.register("short_last", DelayTask::class.java) {
durationMs.set(0)
dependsOn(":short_first")
}
tasks.register("long_first", DelayTask::class.java) {
durationMs.set(100)
}
tasks.register("long_last", DelayTask::class.java) {
durationMs.set(100)
dependsOn(":long_first")
}
""".trimIndent()
)

// TODO: remove verbose logging after stabilizing tests MBS-11302
val tasks = calculatePath(":short_last", ":long_last", args = listOf("--info"))

assertThat(tasks).containsExactly(":long_first", ":long_last")
}

@Test
fun `parallel routes - path has the longest task`() {
setupTasks(
"""
${delayTaskDeclaration()}
tasks.register("first", DelayTask::class.java)
tasks.register("intermediate_1", DelayTask::class.java){
durationMs.set(1)
dependsOn(":first")
}
tasks.register("intermediate_100", DelayTask::class.java){
durationMs.set(100)
dependsOn(":first")
}
tasks.register("last", DelayTask::class.java) {
dependsOn(":intermediate_1", ":intermediate_100")
}
""".trimIndent()
)
val tasks = calculatePath(":last")

assertThat(tasks).containsExactly(":first", ":intermediate_100", ":last")
}

@Test
fun `disabled plugin - no report`() {
setupTasks(
enabledPlugin = false,
buildScript = """
${delayTaskDeclaration()}
${customTaskDeclaration()}
tasks.register("work", DelayTask::class.java)
tasks.register("work", CustomTask::class.java)
""".trimIndent()
)

Expand Down Expand Up @@ -207,17 +150,16 @@ internal class CriticalPathTest {
)
}

private fun delayTaskDeclaration(): String {
private fun customTaskDeclaration(): String {
return """
abstract class DelayTask @Inject constructor(objects: ObjectFactory) : DefaultTask() {
abstract class CustomTask @Inject constructor(objects: ObjectFactory) : DefaultTask() {
@Input
var durationMs = objects.property<Long>().convention(1)
init {
outputs.upToDateWhen { false }
}
@TaskAction
fun createFile() {
Thread.sleep(durationMs.get())
}
fun action() { }
}
""".trimIndent()
}
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