convert dropwizard-views-0.7 tests from groovy to java (#8808)

instrumentation/dropwizard/dropwizard-views-0.7/javaagent/src/test/groovy/ViewRenderTest.groovy

@@ -1,63 +0,0 @@
-/*
- * Copyright The OpenTelemetry Authors
- * SPDX-License-Identifier: Apache-2.0
- */
-
-import io.dropwizard.views.View
-import io.dropwizard.views.freemarker.FreemarkerViewRenderer
-import io.dropwizard.views.mustache.MustacheViewRenderer
-import io.opentelemetry.api.trace.SpanKind
-import io.opentelemetry.instrumentation.test.AgentInstrumentationSpecification
-
-import java.nio.charset.StandardCharsets
-
-class ViewRenderTest extends AgentInstrumentationSpecification {
-
-  def "render #template succeeds with span"() {
-    setup:
-    def outputStream = new ByteArrayOutputStream()
-
-    when:
-    runWithSpan("parent") {
-      renderer.render(view, Locale.ENGLISH, outputStream)
-    }
-
-    then:
-    outputStream.toString().contains("This is an example of a view")
-    assertTraces(1) {
-      trace(0, 2) {
-        span(0) {
-          name "parent"
-          kind SpanKind.INTERNAL
-          hasNoParent()
-        }
-        span(1) {
-          name "Render $template"
-          childOf span(0)
-        }
-      }
-    }
-
-    where:
-    renderer                     | template
-    new FreemarkerViewRenderer() | "/views/ftl/utf8.ftl"
-    new MustacheViewRenderer()   | "/views/mustache/utf8.mustache"
-    new FreemarkerViewRenderer() | "/views/ftl/utf8.ftl"
-    new MustacheViewRenderer()   | "/views/mustache/utf8.mustache"
-
-    view = new View(template, StandardCharsets.UTF_8) {}
-  }
-
-  def "do not create span when there's no parent"() {
-    setup:
-    def outputStream = new ByteArrayOutputStream()
-    def view = new View("/views/ftl/utf8.ftl", StandardCharsets.UTF_8) {}
-
-    when:
-    new FreemarkerViewRenderer().render(view, Locale.ENGLISH, outputStream)
-
-    then:
-    Thread.sleep(500)
-    assert traces.isEmpty()
-  }
-}

instrumentation/dropwizard/dropwizard-views-0.7/javaagent/src/test/java/io/opentelemetry/javaagent/instrumentation/dropwizardviews/ViewRenderTest.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.javaagent.instrumentation.dropwizardviews;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import io.dropwizard.views.View;
+import io.dropwizard.views.ViewRenderer;
+import io.dropwizard.views.freemarker.FreemarkerViewRenderer;
+import io.dropwizard.views.mustache.MustacheViewRenderer;
+import io.opentelemetry.api.trace.SpanKind;
+import io.opentelemetry.instrumentation.testing.junit.AgentInstrumentationExtension;
+import io.opentelemetry.instrumentation.testing.junit.InstrumentationExtension;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.Locale;
+import java.util.stream.Stream;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+
+class ViewRenderTest {
+
+  @RegisterExtension
+  private static final InstrumentationExtension testing = AgentInstrumentationExtension.create();
+
+  private static Stream<Arguments> provideParameters() {
+    return Stream.of(
+        Arguments.of(new FreemarkerViewRenderer(), "/views/ftl/utf8.ftl"),
+        Arguments.of(new MustacheViewRenderer(), "/views/mustache/utf8.mustache"),
+        Arguments.of(new FreemarkerViewRenderer(), "/views/ftl/utf8.ftl"),
+        Arguments.of(new MustacheViewRenderer(), "/views/mustache/utf8.mustache"));
+  }
+
+  @ParameterizedTest
+  @MethodSource("provideParameters")
+  void testSpan(ViewRenderer renderer, String template) throws IOException {
+    View view = new View(template, StandardCharsets.UTF_8) {};
+    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+    testing.runWithSpan(
+        "parent",
+        () -> {
+          renderer.render(view, Locale.ENGLISH, outputStream);
+        });
+    assertThat(outputStream.toString("UTF-8")).contains("This is an example of a view");
+    testing.waitAndAssertTraces(
+        trace ->
+            trace
+                .hasSize(2)
+                .hasSpansSatisfyingExactly(
+                    span -> span.hasName("parent").hasKind(SpanKind.INTERNAL).hasNoParent(),
+                    span -> span.hasName("Render " + template).hasParent(trace.getSpan(0))));
+  }
+
+  @Test
+  void testDoesNotCreateSpanWithoutParent() throws InterruptedException, IOException {
+    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+    View view = new View("/views/ftl/utf8.ftl", StandardCharsets.UTF_8) {};
+    new FreemarkerViewRenderer().render(view, Locale.ENGLISH, outputStream);
+    Thread.sleep(500);
+    assertThat(testing.spans().size()).isEqualTo(0);
+  }
+}