Test Android session reuse

android-test/build.gradle

@@ -32,6 +32,7 @@ dependencies {
   implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:${versions.kotlin}"
   implementation project(':okhttp')
   testImplementation 'junit:junit:4.12'
+  androidTestImplementation project(':okhttp-testing-support')
   androidTestImplementation project(':mockwebserver')
   androidTestImplementation project(':okhttp-tls')
   androidTestImplementation 'com.android.support.test:runner:1.0.2'

android-test/src/androidTest/java/okhttp/android/test/OkHttpTest.kt

@@ -23,11 +23,13 @@ import okhttp3.Connection
 import okhttp3.EventListener
 import okhttp3.OkHttpClient
 import okhttp3.Protocol
+import okhttp3.RecordingEventListener
 import okhttp3.Request
 import okhttp3.TlsVersion
 import okhttp3.mockwebserver.MockResponse
 import okhttp3.mockwebserver.MockWebServer
 import okhttp3.tls.internal.TlsUtil.localhost
+import okio.ByteString.Companion.toByteString
 import org.junit.After
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertTrue
@@ -41,6 +43,7 @@ import org.junit.runner.RunWith
 import java.net.InetAddress
 import java.net.UnknownHostException
 import javax.net.ssl.SSLPeerUnverifiedException
+import javax.net.ssl.SSLSocket
 
 /**
  * Run with "./gradlew :android-test:connectedCheck" and make sure ANDROID_SDK_ROOT is set.
@@ -190,6 +193,75 @@ class OkHttpTest {
     }
   }
 
+  @Test
+  fun testEventListener() {
+    val eventListener = RecordingEventListener()
+
+    client = client.newBuilder().eventListener(eventListener).build()
+
+    enableTls()
+
+    server.enqueue(MockResponse().setBody("abc1"))
+    server.enqueue(MockResponse().setBody("abc2"))
+
+    val request = Request.Builder().url(server.url("/")).build()
+
+    client.newCall(request).execute().use { response ->
+      assertEquals(200, response.code)
+    }
+
+    assertEquals(listOf("CallStart", "ProxySelectStart", "ProxySelectEnd", "DnsStart", "DnsEnd",
+        "ConnectStart", "SecureConnectStart", "SecureConnectEnd", "ConnectEnd",
+        "ConnectionAcquired", "RequestHeadersStart", "RequestHeadersEnd", "ResponseHeadersStart",
+        "ResponseHeadersEnd", "ResponseBodyStart", "ResponseBodyEnd", "ConnectionReleased",
+        "CallEnd"), eventListener.recordedEventTypes())
+
+    eventListener.clearAllEvents()
+
+    client.newCall(request).execute().use { response ->
+      assertEquals(200, response.code)
+    }
+
+    assertEquals(listOf("CallStart", "ProxySelectStart", "ProxySelectEnd",
+        "ConnectionAcquired", "RequestHeadersStart", "RequestHeadersEnd", "ResponseHeadersStart",
+        "ResponseHeadersEnd", "ResponseBodyStart", "ResponseBodyEnd", "ConnectionReleased",
+        "CallEnd"), eventListener.recordedEventTypes())
+  }
+
+  @Test
+  fun testSessionReuse() {
+    val sessionIds = mutableListOf<String>()
+
+    client = client.newBuilder().eventListener(object : EventListener() {
+      override fun connectionAcquired(call: Call, connection: Connection) {
+        val sslSocket = connection.socket() as SSLSocket
+
+        sessionIds.add(sslSocket.session.id.toByteString().hex())
+      }
+    }).build()
+
+    enableTls()
+
+    server.enqueue(MockResponse().setBody("abc1"))
+    server.enqueue(MockResponse().setBody("abc2"))
+
+    val request = Request.Builder().url(server.url("/")).build()
+
+    client.newCall(request).execute().use { response ->
+      assertEquals(200, response.code)
+    }
+
+    client.connectionPool.evictAll()
+    assertEquals(0, client.connectionPool.connectionCount())
+
+    client.newCall(request).execute().use { response ->
+      assertEquals(200, response.code)
+    }
+
+    assertEquals(2, sessionIds.size)
+    assertEquals(sessionIds[0], sessionIds[1])
+  }
+
   private fun enableTls() {
     client = client.newBuilder()
         .sslSocketFactory(

okhttp-testing-support/src/main/java/okhttp3/RecordingEventListener.java

@@ -27,6 +27,7 @@ import javax.annotation.Nullable;
 
 import static java.util.Arrays.asList;
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.Assert.assertTrue;
 
 public class RecordingEventListener extends EventListener {
   final Deque<CallEvent> eventSequence = new ConcurrentLinkedDeque<>();
@@ -75,7 +76,7 @@ public class RecordingEventListener extends EventListener {
     CallEvent startEvent = e.closes();
 
     if (startEvent != null) {
-      assertThat(eventSequence).contains(startEvent);
+      assertTrue(eventSequence.contains(startEvent));
     }
 
     eventSequence.offer(e);