Remove redundant tests from SparkJava

Tests that create traces and do not assert on them may leave traces
behind for the next test causing errors.

dd-java-agent/instrumentation/jetty-8/src/test/groovy/JettyHandlerTest.groovy

@@ -2,6 +2,7 @@ import datadog.trace.agent.test.AgentTestRunner
 import datadog.trace.agent.test.TestUtils
 import datadog.trace.agent.test.utils.OkHttpUtils
 import datadog.trace.api.DDSpanTypes
+import datadog.trace.api.DDTags
 import okhttp3.OkHttpClient
 import org.eclipse.jetty.continuation.Continuation
 import org.eclipse.jetty.continuation.ContinuationSupport
@@ -72,7 +73,7 @@ class JettyHandlerTest extends AgentTestRunner {
             "span.kind" "server"
             "component" "jetty-handler"
             "span.origin.type" handler.class.name
-            "span.type" DDSpanTypes.HTTP_SERVER
+            "$DDTags.SPAN_TYPE" DDSpanTypes.HTTP_SERVER
             "http.status_code" 200
             defaultTags()
           }

dd-java-agent/instrumentation/sparkjava-2.3/src/test/groovy/SparkJavaBasedTest.groovy

@@ -1,12 +1,11 @@
 import datadog.trace.agent.test.AgentTestRunner
 import datadog.trace.agent.test.TestUtils
 import datadog.trace.agent.test.utils.OkHttpUtils
-import datadog.trace.api.Config
 import datadog.trace.api.DDSpanTypes
+import datadog.trace.api.DDTags
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import spark.Spark
-import spark.embeddedserver.jetty.JettyHandler
 import spock.lang.Shared
 
 class SparkJavaBasedTest extends AgentTestRunner {
@@ -30,37 +29,6 @@ class SparkJavaBasedTest extends AgentTestRunner {
     Spark.stop()
   }
 
-  def "valid response"() {
-    setup:
-    def request = new Request.Builder()
-      .url("http://localhost:$port/")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    port != 0
-    response.body().string() == "Hello World"
-  }
-
-  def "valid response with registered trace"() {
-    setup:
-    def request = new Request.Builder()
-      .url("http://localhost:$port/")
-      .get()
-      .build()
-    def response = client.newCall(request).execute()
-
-    expect:
-    port != 0
-    response.body().string() == "Hello World"
-
-    and:
-    TEST_WRITER.waitForTraces(1)
-    TEST_WRITER.size() == 1
-  }
-
-
   def "generates spans"() {
     setup:
     def request = new Request.Builder()
@@ -70,31 +38,31 @@ class SparkJavaBasedTest extends AgentTestRunner {
     def response = client.newCall(request).execute()
 
     expect:
+    port != 0
     response.body().string() == "Hello asdf1234"
-    TEST_WRITER.waitForTraces(1)
-    TEST_WRITER.size() == 1
 
-    def trace = TEST_WRITER.firstTrace()
+    assertTraces(1) {
-    trace.size() == 1
+      trace(0, 1) {
-    def context = trace[0].context()
+        span(0) {
-    context.serviceName == "unnamed-java-app"
+          serviceName "unnamed-java-app"
-    context.operationName == "jetty.request"
+          operationName "jetty.request"
-    context.resourceName == "GET /param/:param"
+          resourceName "GET /param/:param"
-    context.spanType == DDSpanTypes.HTTP_SERVER
+          spanType DDSpanTypes.HTTP_SERVER
-    !context.getErrorFlag()
+          errored false
-    context.parentId == "0"
+          parent()
-    def tags = context.tags
+          tags {
-    tags["http.url"] == "http://localhost:$port/param/asdf1234"
+            "http.url" "http://localhost:$port/param/asdf1234"
-    tags["http.method"] == "GET"
+            "http.method" "GET"
-    tags["span.kind"] == "server"
+            "span.kind" "server"
-    tags["span.type"] == DDSpanTypes.HTTP_SERVER
+            "component" "jetty-handler"
-    tags["component"] == "jetty-handler"
+            "span.origin.type" spark.embeddedserver.jetty.JettyHandler.name
-    tags["http.status_code"] == 200
+            "$DDTags.SPAN_TYPE" DDSpanTypes.HTTP_SERVER
-    tags["thread.name"] != null
+            "http.status_code" 200
-    tags["thread.id"] != null
+            defaultTags()
-    tags[Config.RUNTIME_ID_TAG] == Config.get().runtimeId
+          }
-    tags["span.origin.type"] == JettyHandler.name
+        }
-    tags.size() == 10
+      }
+    }
   }
 
 }