Add unit test for unix domain socket support (#7766)

Author: jpbempel

dd-java-agent/agent-debugger/src/test/java/com/datadog/debugger/uploader/BatchUploaderTest.java

@@ -71,6 +71,15 @@ public void tearDown() throws IOException {
     }
   }
 
+  @Test
+  void testUnixDomainSocket() {
+    when(config.getAgentUnixDomainSocket()).thenReturn("/tmp/ddagent/agent.sock");
+    uploader = new BatchUploader(config, "http://localhost:8126");
+    assertEquals(
+        "datadog.common.socket.UnixDomainSocketFactory",
+        uploader.getClient().socketFactory().getClass().getTypeName());
+  }
+
   @Test
   void testOkHttpClientForcesCleartextConnspecWhenNotUsingTLS() {
     uploader = new BatchUploader(config, "http://example.com");

internal-api/src/test/groovy/datadog/trace/api/ConfigTest.groovy

@@ -2465,4 +2465,18 @@ class ConfigTest extends DDSpecification {
     "auto"         | true            | PROFILING_START_DELAY_DEFAULT  | PROFILING_START_FORCE_FIRST_DEFAULT
     // spotless:on
   }
+
+  def "url for debugger with unix domain socket"() {
+    when:
+    def prop = new Properties()
+    prop.setProperty(AGENT_HOST, "myhost")
+    prop.setProperty(TRACE_AGENT_PORT, "1234")
+    prop.setProperty(TRACE_AGENT_URL, "unix:///path/to/socket")
+
+    Config config = Config.get(prop)
+
+    then:
+    config.finalDebuggerSnapshotUrl == "http://localhost:8126/debugger/v1/input"
+    config.finalDebuggerSymDBUrl == "http://localhost:8126/symdb/v1/input"
+  }
 }