#53 Add Is extension method for IWebDriver

atata-framework · Oct 3, 2022 · 87308ea · 87308ea
1 parent db7022a
commit 87308ea
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Showing 2 changed files with 55 additions and 10 deletions.
diff --git a/src/Atata.WebDriverExtras/Extensions/IWebDriverExtensions.cs b/src/Atata.WebDriverExtras/Extensions/IWebDriverExtensions.cs
@@ -51,8 +51,21 @@ public static TInterface As<TInterface>(this IWebDriver webDriver) =>
                 ? castedWebDriver
                 : throw new NotSupportedException($"{webDriver.GetType().FullName} doesn't implement {typeof(TInterface).FullName}.");
 
+        /// <summary>
+        /// Determines whether the web driver implements <typeparamref name="TInterface"/>.
+        /// Considers <see cref="IWrapsDriver"/>.
+        /// </summary>
+        /// <typeparam name="TInterface">The type of the interface.</typeparam>
+        /// <param name="webDriver">The <see cref="IWebDriver"/> instance.</param>
+        /// <returns>
+        ///   <c>true</c> if [is] [the specified web driver]; otherwise, <c>false</c>.
+        /// </returns>
+        public static bool Is<TInterface>(this IWebDriver webDriver) =>
+            webDriver.TryAs<TInterface>(out _);
+
         /// <summary>
         /// Tries to cast the web driver to the specified interface type.
+        /// Considers <see cref="IWrapsDriver"/>.
         /// </summary>
         /// <typeparam name="TInterface">The type of the interface.</typeparam>
         /// <param name="webDriver">The <see cref="IWebDriver"/> instance.</param>

diff --git a/test/Atata.WebDriverExtras.Tests/IWebDriverExtensionsTests.cs b/test/Atata.WebDriverExtras.Tests/IWebDriverExtensionsTests.cs
@@ -1,5 +1,7 @@
 using System.Collections.ObjectModel;
 
+using AssertIs = NUnit.Framework.Is;
+
 namespace Atata.WebDriverExtras.Tests;
 
 public static class IWebDriverExtensionsTests
@@ -13,7 +15,7 @@ public void WithNull() =>
 
         [Test]
         public void HasInterface() =>
-            Assert.That(Driver.As<IJavaScriptExecutor>(), Is.EqualTo(Driver));
+            Assert.That(Driver.As<IJavaScriptExecutor>(), AssertIs.EqualTo(Driver));
 
         [Test]
         public void MissingInterface() =>
@@ -24,7 +26,7 @@ public void MissingInterface() =>
         public void HasInterfaceInWrappedDriver()
         {
             using IWebDriver wrapper = new DriverWrapper(Driver);
-            Assert.That(wrapper.As<IJavaScriptExecutor>(), Is.EqualTo(Driver));
+            Assert.That(wrapper.As<IJavaScriptExecutor>(), AssertIs.EqualTo(Driver));
         }
 
         [Test]
@@ -36,6 +38,36 @@ public void MissingInterfaceInWrappedDriver()
         }
     }
 
+    public class Is : UITestFixture
+    {
+        [Test]
+        public void WithNull() =>
+            Assert.Throws<ArgumentNullException>(() =>
+                ((IWebDriver)null).Is<IJavaScriptExecutor>());
+
+        [Test]
+        public void HasInterface() =>
+            Assert.That(Driver.Is<IJavaScriptExecutor>(), AssertIs.True);
+
+        [Test]
+        public void MissingInterface() =>
+            Assert.That(Driver.Is<IEquatable<int>>(), AssertIs.False);
+
+        [Test]
+        public void HasInterfaceInWrappedDriver()
+        {
+            using IWebDriver wrapper = new DriverWrapper(Driver);
+            Assert.That(wrapper.Is<IJavaScriptExecutor>(), AssertIs.True);
+        }
+
+        [Test]
+        public void MissingInterfaceInWrappedDriver()
+        {
+            using IWebDriver wrapper = new DriverWrapper(Driver);
+            Assert.That(wrapper.Is<IEquatable<int>>(), AssertIs.False);
+        }
+    }
+
     public class TryAs : UITestFixture
     {
         [Test]
@@ -48,17 +80,17 @@ public void HasInterface()
         {
             bool result = Driver.TryAs<IJavaScriptExecutor>(out var casted);
 
-            Assert.That(result, Is.True);
-            Assert.That(casted, Is.EqualTo(Driver));
+            Assert.That(result, AssertIs.True);
+            Assert.That(casted, AssertIs.EqualTo(Driver));
         }
 
         [Test]
         public void MissingInterface()
         {
             bool result = Driver.TryAs<IEquatable<int>>(out var casted);
 
-            Assert.That(result, Is.False);
-            Assert.That(casted, Is.Null);
+            Assert.That(result, AssertIs.False);
+            Assert.That(casted, AssertIs.Null);
         }
 
         [Test]
@@ -68,8 +100,8 @@ public void HasInterfaceInWrappedDriver()
 
             bool result = Driver.TryAs<IJavaScriptExecutor>(out var casted);
 
-            Assert.That(result, Is.True);
-            Assert.That(casted, Is.EqualTo(Driver));
+            Assert.That(result, AssertIs.True);
+            Assert.That(casted, AssertIs.EqualTo(Driver));
         }
 
         [Test]
@@ -79,8 +111,8 @@ public void MissingInterfaceInWrappedDriver()
 
             bool result = wrapper.TryAs<IEquatable<int>>(out var casted);
 
-            Assert.That(result, Is.False);
-            Assert.That(casted, Is.Null);
+            Assert.That(result, AssertIs.False);
+            Assert.That(casted, AssertIs.Null);
         }
     }