From 088db165edded697f597554ad9d2e71eb1c83acf Mon Sep 17 00:00:00 2001
From: nkochnev <n.kochnev@gmail.com>
Date: Fri, 12 Aug 2022 10:40:42 +0500
Subject: [PATCH] Added tests on backward direction of autocomplete

---
 .../TestConsoleInput.cs                       |  9 +++++++
 ...omplete_PreviousChoice.Output.verified.txt |  1 +
 .../Unit/Prompts/TextPromptTests.cs           | 24 +++++++++++++++++++
 3 files changed, 34 insertions(+)
 create mode 100644 test/Spectre.Console.Tests/Expectations/Prompts/Text/AutoComplete_PreviousChoice.Output.verified.txt

diff --git a/src/Spectre.Console.Testing/TestConsoleInput.cs b/src/Spectre.Console.Testing/TestConsoleInput.cs
index 09273cd..e471d30 100644
--- a/src/Spectre.Console.Testing/TestConsoleInput.cs
+++ b/src/Spectre.Console.Testing/TestConsoleInput.cs
@@ -61,6 +61,15 @@ public sealed class TestConsoleInput : IAnsiConsoleInput
         _input.Enqueue(new ConsoleKeyInfo((char)input, input, false, false, false));
     }
 
+    /// <summary>
+    /// Pushes the specified key to the input queue.
+    /// </summary>
+    /// <param name="consoleKeyInfo">The input.</param>
+    public void PushKey(ConsoleKeyInfo consoleKeyInfo)
+    {
+        _input.Enqueue(consoleKeyInfo);
+    }
+
     /// <inheritdoc/>
     public bool IsKeyAvailable()
     {
diff --git a/test/Spectre.Console.Tests/Expectations/Prompts/Text/AutoComplete_PreviousChoice.Output.verified.txt b/test/Spectre.Console.Tests/Expectations/Prompts/Text/AutoComplete_PreviousChoice.Output.verified.txt
new file mode 100644
index 0000000..86cb481
--- /dev/null
+++ b/test/Spectre.Console.Tests/Expectations/Prompts/Text/AutoComplete_PreviousChoice.Output.verified.txt
@@ -0,0 +1 @@
+Favorite fruit? [Banana/Bandana/Orange]: Ban   Banana      Bandana       Banana
diff --git a/test/Spectre.Console.Tests/Unit/Prompts/TextPromptTests.cs b/test/Spectre.Console.Tests/Unit/Prompts/TextPromptTests.cs
index 1410b64..69d0770 100644
--- a/test/Spectre.Console.Tests/Unit/Prompts/TextPromptTests.cs
+++ b/test/Spectre.Console.Tests/Unit/Prompts/TextPromptTests.cs
@@ -154,6 +154,30 @@ public sealed class TextPromptTests
         return Verifier.Verify(console.Output);
     }
 
+    [Fact]
+    [Expectation("AutoComplete_PreviousChoice")]
+    public Task Should_Auto_Complete_To_Previous_Choice_When_Pressing_ShiftTab_On_A_Match()
+    {
+        // Given
+        var console = new TestConsole();
+        console.Input.PushText("Ban");
+        console.Input.PushKey(ConsoleKey.Tab);
+        console.Input.PushKey(ConsoleKey.Tab);
+        var shiftTab = new ConsoleKeyInfo((char)ConsoleKey.Tab, ConsoleKey.Tab, true, false, false);
+        console.Input.PushKey(shiftTab);
+        console.Input.PushKey(ConsoleKey.Enter);
+
+        // When
+        console.Prompt(
+            new TextPrompt<string>("Favorite fruit?")
+                .AddChoice("Banana")
+                .AddChoice("Bandana")
+                .AddChoice("Orange"));
+
+        // Then
+        return Verifier.Verify(console.Output);
+    }
+
     [Fact]
     [Expectation("CustomValidation")]
     public Task Should_Return_Error_If_Custom_Validation_Fails()