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Improve exception if a (multi)selection prompt is used incorrectly

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Before this commit, the selection prompt would throw an `InvalidOperationException` (Sequence contains no elements) and the multi selection prompt would throw an `ArgumentOutOfRangeException` (Index was out of range. Must be non-negative and less than the size of the collection.)

Both would occur because the prompts were never meant to be empty.
This commit is contained in:
Cédric Luthi
2024-09-10 14:01:32 +02:00
committed by Patrik Svensson
parent b470af11f7
commit c70a8b8fc5
3 changed files with 38 additions and 0 deletions
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17
src/Tests/Spectre.Console.Tests/Unit/Prompts/MultiSelectionPromptTests.cs
View File

@ -127,6 +127,23 @@ public sealed class MultiSelectionPromptTests
// Then
action.ShouldThrow<ArgumentOutOfRangeException>();
}
[Fact] public void Should_Throw_Meaningful_Exception_For_Empty_Prompt()
{
// Given
var console = new TestConsole();
console.Profile.Capabilities.Interactive = true;
console.Input.PushKey(ConsoleKey.Spacebar);
var prompt = new MultiSelectionPrompt<string>();
// When
Action action = () => prompt.Show(console);
// Then
var exception = action.ShouldThrow<InvalidOperationException>();
exception.Message.ShouldBe("Cannot show an empty selection prompt. Please call the AddChoice() method to configure the prompt.");
}
}
file sealed class CustomItem

16
src/Tests/Spectre.Console.Tests/Unit/Prompts/SelectionPromptTests.cs
View File

@ -114,6 +114,22 @@ public sealed class SelectionPromptTests
// Then
selection.ShouldBe(choices[1]);
}
[Fact] public void Should_Throw_Meaningful_Exception_For_Empty_Prompt()
{
// Given
var console = new TestConsole();
console.Profile.Capabilities.Interactive = true;
var prompt = new SelectionPrompt<string>();
// When
Action action = () => prompt.Show(console);
// Then
var exception = action.ShouldThrow<InvalidOperationException>();
exception.Message.ShouldBe("Cannot show an empty selection prompt. Please call the AddChoice() method to configure the prompt.");
}
}
file sealed class CustomSelectionItem