Add CloseWebDriver task

Boa.Constrictor.Selenium/Tasks/CloseWebDriver.cs

@@ -0,0 +1,49 @@
+using Boa.Constrictor.Screenplay;
+using OpenQA.Selenium;
+
+namespace Boa.Constrictor.Selenium
+{
+    /// <summary>
+    /// Closes the WebDriver window or tab.
+    /// </summary>
+    public class CloseWebDriver : AbstractWebTask
+    {
+        #region Constructors
+
+        /// <summary>
+        /// Private constructor.
+        /// (Use static builder methods to construct.)
+        /// </summary>
+        private CloseWebDriver() { }
+
+        #endregion
+
+        #region Builder Methods
+
+        /// <summary>
+        /// Constructs the Task object.
+        /// </summary>
+        /// <returns></returns>
+        public static CloseWebDriver ForBrowser() => new CloseWebDriver();
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Closes the WebDriver window or tab.
+        /// WARNING: You must switch back to a valid window handle in order to continue execution
+        /// </summary>
+        /// <param name="actor">The Screenplay Actor.</param>
+        /// <param name="driver">The WebDriver.</param>
+        public override void PerformAs(IActor actor, IWebDriver driver) => driver.Close();
+
+        /// <summary>
+        /// Returns a description of the Task.
+        /// </summary>
+        /// <returns></returns>
+        public override string ToString() => "close the WebDriver window or tab";
+
+        #endregion
+    }
+}