Do not append suffix to text prompt

Do not append suffix to text prompt unless
there are choices or a default value specified.

Closes #413

global.json

@@ -1,7 +1,7 @@
 {
   "projects": [ "src", "tests" ],
   "sdk": {
-    "version": "5.0.202",
+    "version": "5.0.301",
     "rollForward": "latestPatch"
   }
 }

src/Spectre.Console/Widgets/Prompt/TextPrompt.cs

@@ -179,8 +179,10 @@ namespace Spectre.Console
             var builder = new StringBuilder();
             builder.Append(_prompt.TrimEnd());
 
+            var appendSuffix = false;
             if (ShowChoices && Choices.Count > 0)
             {
+                appendSuffix = true;
                 var converter = Converter ?? TypeConverterHelper.ConvertToString;
                 var choices = string.Join("/", Choices.Select(choice => converter(choice)));
                 builder.AppendFormat(CultureInfo.InvariantCulture, " [blue][[{0}]][/]", choices);
@@ -188,6 +190,7 @@ namespace Spectre.Console
 
             if (ShowDefaultValue && DefaultValue != null)
             {
+                appendSuffix = true;
                 var converter = Converter ?? TypeConverterHelper.ConvertToString;
                 builder.AppendFormat(
                     CultureInfo.InvariantCulture,
@@ -196,8 +199,7 @@ namespace Spectre.Console
             }
 
             var markup = builder.ToString().Trim();
-            if (!markup.EndsWith("?", StringComparison.OrdinalIgnoreCase) &&
+            if (appendSuffix)
-                !markup.EndsWith(":", StringComparison.OrdinalIgnoreCase))
             {
                 markup += ":";
             }

test/Spectre.Console.Tests/Expectations/Widgets/Prompt/Text/NoSuffix.Output.verified.txt

@@ -0,0 +1 @@
+Enter command$ Orange

test/Spectre.Console.Tests/Unit/TextPromptTests.cs

@@ -12,6 +12,20 @@ namespace Spectre.Console.Tests.Unit
     [ExpectationPath("Widgets/Prompt/Text")]
     public sealed class TextPromptTests
     {
+        [Fact]
+        public void Should_Return_Entered_Text()
+        {
+            // Given
+            var console = new TestConsole();
+            console.Input.PushTextWithEnter("Hello World");
+
+            // When
+            var result = console.Prompt(new TextPrompt<string>("Enter text:"));
+
+            // Then
+            result.ShouldBe("Hello World");
+        }
+
         [Fact]
         [Expectation("ConversionError")]
         public Task Should_Return_Validation_Error_If_Value_Cannot_Be_Converted()
@@ -218,5 +232,22 @@ namespace Spectre.Console.Tests.Unit
             // Then
             return Verifier.Verify(console.Output);
         }
+
+        [Fact]
+        [Expectation("NoSuffix")]
+        [GitHubIssue(413)]
+        public Task Should_Not_Append_Questionmark_Or_Colon_If_No_Choices_Are_Set()
+        {
+            // Given
+            var console = new TestConsole();
+            console.Input.PushTextWithEnter("Orange");
+
+            // When
+            console.Prompt(
+                new TextPrompt<string>("Enter command$"));
+
+            // Then
+            return Verifier.Verify(console.Output);
+        }
     }
 }

test/Spectre.Console.Tests/Utilities/GitHubIssueAttribute.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Spectre.Console.Tests
+{
+    public sealed class GitHubIssueAttribute : Attribute
+    {
+        public int IssueId { get; }
+
+        public GitHubIssueAttribute(int issueId)
+        {
+            IssueId = issueId;
+        }
+    }
+}