From dfb3bbacc6c7a49db370899189c30637e52da00f Mon Sep 17 00:00:00 2001
From: Nelson Osacky <nelson.osacky@sentry.io>
Date: Tue, 20 Oct 2026 19:47:25 +0200
Subject: [PATCH] test(async-profiler): Add an end-to-end test of a profiled
 transaction

ContinuousProfilerEndToEndTest starts a sampled transaction with the
TRACE profile lifecycle and checks that its profile chunk reaches
MockSentryServer, linked to the transaction by the profiler ID. It
ports the profiling part of the console sample's system test.

The profiler rejects a traces path with a dot anywhere in its absolute
form, so the test puts it in the temp dir.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
---
 sentry-async-profiler/build.gradle.kts        |  1 +
 .../ContinuousProfilerEndToEndTest.kt         | 48 +++++++++++++++++++
 2 files changed, 49 insertions(+)
 create mode 100644 sentry-async-profiler/src/test/java/io/sentry/asyncprofiler/ContinuousProfilerEndToEndTest.kt

diff --git a/sentry-async-profiler/build.gradle.kts b/sentry-async-profiler/build.gradle.kts
index 3bcdefd1d82..fbb4a8fc353 100644
--- a/sentry-async-profiler/build.gradle.kts
+++ b/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.core)
diff --git a/sentry-async-profiler/src/test/java/io/sentry/asyncprofiler/ContinuousProfilerEndToEndTest.kt b/sentry-async-profiler/src/test/java/io/sentry/asyncprofiler/ContinuousProfilerEndToEndTest.kt
new file mode 100644
index 00000000000..25f8d0b9940
--- /dev/null
+++ b/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 }
+  }
+}