prom

Author: zeitlinger

smoke-tests/src/test/groovy/io/opentelemetry/smoketest/PrometheusSmokeTest.groovy

@@ -0,0 +1,41 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.smoketest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import io.opentelemetry.testing.internal.armeria.client.WebClient;
+import org.junit.jupiter.api.condition.DisabledIf;
+import org.junit.jupiter.api.extension.RegisterExtension;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+@DisabledIf("io.opentelemetry.smoketest.TestContainerManager#useWindowsContainers")
+class PrometheusSmokeTest {
+
+  private static final int PROMETHEUS_PORT = 9090;
+
+  @RegisterExtension
+  static final SmokeTestInstrumentationExtension testing =
+      SmokeTestInstrumentationExtension.springBoot("20211213.1570880324")
+          .env("OTEL_METRICS_EXPORTER", "prometheus")
+          .env("OTEL_EXPORTER_PROMETHEUS_PORT", String.valueOf(PROMETHEUS_PORT))
+          .extraPorts(PROMETHEUS_PORT)
+          .build();
+
+  @ParameterizedTest
+  @ValueSource(ints = {8, 11, 17})
+  void shouldExportMetrics(int jdk) {
+    testing.start(jdk);
+    testing.client().get("/greeting").aggregate().join();
+
+    WebClient prometheusClient =
+        WebClient.of("h1c://localhost:" + testing.getTargetMappedPort(PROMETHEUS_PORT));
+    String prometheusData = prometheusClient.get("/metrics").aggregate().join().contentUtf8();
+
+    assertThat(prometheusData).contains("jvm_memory_used");
+  }
+}