Revert "FIXME: temporarily ignore hostname assertions on CircleCI (#8411)" (#8422)

This reverts commit ebdbdd4.

Author: smola

dd-smoke-tests/profiling-integration-tests/src/test/java/datadog/smoketest/JFRBasedProfilingIntegrationTest.java

@@ -20,6 +20,7 @@
 import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
+import java.net.InetAddress;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -257,8 +258,7 @@ private void testContinuousRecording(
       assertEquals("smoke-test-java-app", requestTags.get("service"));
       assertEquals("jvm", requestTags.get("language"));
       assertNotNull(requestTags.get("runtime-id"));
-      // FIXME: temporarily ignore this assertion on CircleCI
-      // assertEquals(InetAddress.getLocalHost().getHostName(), requestTags.get("host"));
+      assertEquals(InetAddress.getLocalHost().getHostName(), requestTags.get("host"));
 
       assertFalse(logHasErrors(logFilePath));
       IItemCollection events = JfrLoaderToolkit.loadEvents(new ByteArrayInputStream(rawJfr.get()));

telemetry/src/test/groovy/datadog/telemetry/HostInfoTest.groovy

@@ -35,8 +35,7 @@ class HostInfoTest extends Specification {
     Assume.assumeTrue('uname -a'.execute().waitFor() == 0)
 
     expect:
-    // FIXME: temporarily ignore this assertion on CircleCI
-    // HostInfo.getHostname() == 'uname -n'.execute().text.trim()
+    HostInfo.getHostname() == 'uname -n'.execute().text.trim()
     HostInfo.getOsName() == 'uname -s'.execute().text.trim()
     HostInfo.getKernelName() == 'uname -s'.execute().text.trim()
     if (Platform.isMac()) {