yegor256#953 SrvTake test and Grizzly update

pom.xml

@@ -129,9 +129,9 @@ SOFTWARE.
       <optional>true</optional>
     </dependency>
     <dependency>
-      <groupId>com.sun.grizzly</groupId>
-      <artifactId>grizzly-servlet-webserver</artifactId>
-      <version>1.9.65</version>
+      <groupId>org.glassfish.grizzly</groupId>
+      <artifactId>grizzly-http-servlet-server</artifactId>
+      <version>2.4.3.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>

src/main/java/org/takes/servlet/SrvTake.java

@@ -39,9 +39,9 @@
  * Servlet for take.
  *
  * @since 2.0
- * @todo #865:30min Continue to integrate with Servlet API,
+ * @todo #953:30min Integration with Servlets Session API,
  *  see https://github.com/yegor256/takes/pull/865 discussion for details.
- *  Also add unit tests for servlet related class SrvTake.
+ *  Add support and tests to Servlet Session.
  */
 public final class SrvTake extends HttpServlet {
     /**

src/test/java/org/takes/servlet/SrvTakeTest.java

@@ -0,0 +1,70 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package org.takes.servlet;
+
+import com.jcabi.http.request.JdkRequest;
+import com.jcabi.http.response.RestResponse;
+import java.net.HttpURLConnection;
+import org.cactoos.text.FormattedText;
+import org.glassfish.grizzly.http.server.HttpServer;
+import org.glassfish.grizzly.servlet.ServletRegistration;
+import org.glassfish.grizzly.servlet.WebappContext;
+import org.hamcrest.core.StringContains;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Test case for {@link SrvTake}.
+ *
+ * @since 1.16
+ */
+public final class SrvTakeTest {
+    @Test
+    public void executeATakesAsAServlet() throws Exception {
+        final String name = "webapp";
+        final HttpServer server = HttpServer.createSimpleServer("./", 18080);
+        final WebappContext context = new WebappContext(name);
+        final ServletRegistration servlet = context.addServlet(
+            "takes",
+            SrvTake.class
+        );
+        servlet.setInitParameter("take", TkServletApp.class.getName());
+        servlet.addMapping("/test");
+        context.deploy(server);
+        server.start();
+        new JdkRequest("http://localhost:18080/test")
+            .fetch()
+            .as(RestResponse.class)
+            .assertStatus(HttpURLConnection.HTTP_OK)
+            .assertBody(
+                new StringContains(
+                    new FormattedText(
+                        "Hello servlet! Using [%s] ServletContext.",
+                        name
+                    ).asString()
+                )
+            );
+        server.shutdownNow();
+    }
+}

src/test/java/org/takes/servlet/TkServletApp.java

@@ -0,0 +1,66 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package org.takes.servlet;
+
+import java.io.IOException;
+import javax.servlet.ServletContext;
+import org.cactoos.text.FormattedText;
+import org.cactoos.text.UncheckedText;
+import org.takes.Request;
+import org.takes.Response;
+import org.takes.Take;
+import org.takes.rs.RsText;
+
+/**
+ * Fake TkServletApp (for {@link SrvTake} test only).
+ *
+ * @since 1.16
+ */
+public final class TkServletApp implements Take {
+    /**
+     * ServletContext.
+     */
+    private final ServletContext context;
+
+    /**
+     * Ctor.
+     * @param ctx A ServletContext
+     */
+    public TkServletApp(final ServletContext ctx) {
+        this.context = ctx;
+    }
+
+    @Override
+    public Response act(final Request req) throws IOException {
+        return new RsText(
+            new UncheckedText(
+                new FormattedText(
+                    "Hello servlet! Using [%s] ServletContext.",
+                    this.context.getServletContextName()
+                )
+            ).asString()
+        );
+    }
+}