test(async-profiler): [Sample Tests 33] Add an end-to-end test of a profiled transaction

sentry-async-profiler/build.gradle.kts

@@ -32,6 +32,7 @@ dependencies {
   // tests
   testImplementation(kotlin(Config.kotlinStdLib))
   testImplementation(projects.sentryTestSupport)
+  testImplementation(libs.google.truth)
   testImplementation(libs.kotlin.test.junit)
   testImplementation(libs.mockito.kotlin)
   testImplementation(libs.mockito.inline)

sentry-async-profiler/src/test/java/io/sentry/asyncprofiler/ContinuousProfilerEndToEndTest.kt

@@ -0,0 +1,48 @@
+package io.sentry.asyncprofiler
+
+import com.google.common.truth.Truth.assertThat
+import io.sentry.ProfileLifecycle
+import io.sentry.Sentry
+import io.sentry.test.MockSentryServer
+import io.sentry.test.initForTest
+import io.sentry.test.profileChunk
+import io.sentry.test.transaction
+import kotlin.test.AfterTest
+import kotlin.test.Test
+
+/** Profiles a transaction with the async profiler and sends both over the real HTTP transport. */
+class ContinuousProfilerEndToEndTest {
+  private val server = MockSentryServer()
+
+  @AfterTest
+  fun teardown() {
+    Sentry.close()
+    server.close()
+  }
+
+  @Test
+  fun `a transaction starts a profile whose chunk reaches Sentry`() {
+    initForTest {
+      it.dsn = server.dsn
+      it.tracesSampleRate = 1.0
+      it.profileSessionSampleRate = 1.0
+      it.profileLifecycle = ProfileLifecycle.TRACE
+      // The profiler rejects a traces path with a dot anywhere in it, which the module's absolute
+      // path can have.
+      it.profilingTracesDirPath =
+        "${System.getProperty("java.io.tmpdir")}/sentry-profiler-end-to-end-test"
+    }
+
+    val transaction = Sentry.startTransaction("transaction name", "op")
+    val span = transaction.startChild("child")
+    Thread.sleep(100)
+    span.finish()
+    transaction.finish()
+
+    val sent =
+      server.awaitEnvelope { it.transaction()?.transaction == "transaction name" }.transaction()!!
+    val profilerId = sent.contexts.profile?.profilerId
+    assertThat(profilerId).isNotNull()
+    server.awaitEnvelope(timeoutMillis = 30_000) { it.profileChunk()?.profilerId == profilerId }
+  }
+}