added IHasValue interface

src/Unicorn.UI.Core/Controls/Interfaces/IHasValue.cs

@@ -0,0 +1,13 @@
+namespace Unicorn.UI.Core.Controls.Interfaces
+{
+    /// <summary>
+    /// Interface for controls which have a value.
+    /// </summary>
+    public interface IHasValue
+    {
+        /// <summary>
+        /// Gets value as a <see cref="string"/>
+        /// </summary>
+        string Value { get; }
+    }
+}

src/Unicorn.UI.Core/Matchers/ControlMatchers.cs

@@ -88,6 +88,14 @@ public ControlHasValidationErrorMatcher HasValidationError() =>
         public HasTitleMatcher HasTitle(string expectedTitle) =>
             new HasTitleMatcher(expectedTitle);
 
+        /// <summary>
+        /// Gets matcher to check if control has specified value.
+        /// </summary>
+        /// <param name="expectedValue">expected control value</param>
+        /// <returns>matcher instance</returns>
+        public InputHasValueMatcher HasValue(string expectedValue) =>
+            new InputHasValueMatcher(expectedValue);
+
         /// <summary>
         /// Gets matcher to check if control contains specified sub-items.
         /// </summary>

src/Unicorn.UI.Core/Matchers/TypifiedMatchers/InputHasValueMatcher.cs

@@ -1,13 +1,14 @@
 using System;
 using Unicorn.Taf.Core.Verification.Matchers;
+using Unicorn.UI.Core.Controls.Interfaces;
 using Unicorn.UI.Core.Controls.Interfaces.Typified;
 
 namespace Unicorn.UI.Core.Matchers.TypifiedMatchers
 {
     /// <summary>
-    /// Matcher to check if <see cref="ITextInput"/> UI control has specified value. 
+    /// Matcher to check if <see cref="IHasValue"/> UI control has specified value.
     /// </summary>
-    public class InputHasValueMatcher : TypeSafeMatcher<ITextInput>
+    public class InputHasValueMatcher : TypeSafeMatcher<IHasValue>
     {
         private readonly string _expectedValue;
 
@@ -25,11 +26,11 @@ public InputHasValueMatcher(string isChecked)
         public override string CheckDescription => $"has value '{_expectedValue}'";
 
         /// <summary>
-        /// Checks if text input has specified value.
+        /// Checks if control has specified value.
         /// </summary>
         /// <param name="actual">UI control under check</param>
-        /// <returns>true - if text input has expected value; otherwise - false</returns>
-        public override bool Matches(ITextInput actual)
+        /// <returns>true - if control has expected value; otherwise - false</returns>
+        public override bool Matches(IHasValue actual)
         {
             if (actual == null)
             {
@@ -39,12 +40,12 @@ public override bool Matches(ITextInput actual)
 
             var actualValue = actual.Value;
 
-            string mismatch = Reverse ? 
-                actualValue : 
+            string mismatch = Reverse ?
+                actualValue :
                 Environment.NewLine + MatchersUtils.GetStringsDiff(_expectedValue, actualValue);
 
             DescribeMismatch(mismatch);
-                
+
             return actualValue.Equals(_expectedValue);
         }
     }