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LanguageKernelFormattingTests.cs
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LanguageKernelFormattingTests.cs
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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System.Linq;
using System.Reactive.Linq;
using System.Threading.Tasks;
using FluentAssertions;
using Microsoft.DotNet.Interactive.Commands;
using Microsoft.DotNet.Interactive.CSharp;
using Microsoft.DotNet.Interactive.Events;
using Microsoft.DotNet.Interactive.Formatting;
using Microsoft.DotNet.Interactive.Tests.Utility;
using Xunit;
using Xunit.Abstractions;
using static Microsoft.DotNet.Interactive.Formatting.Tests.Tags;
#pragma warning disable 8509
namespace Microsoft.DotNet.Interactive.Tests;
public class LanguageKernelFormattingTests : LanguageKernelTestBase
{
public LanguageKernelFormattingTests(ITestOutputHelper output) : base(output)
{
}
protected override CSharpKernel CreateCSharpKernel()
{
var cSharpKernel = base.CreateCSharpKernel();
cSharpKernel.DeferCommand(new SubmitCode($@"
using static {typeof(PocketViewTags).FullName};
using {typeof(PocketView).Namespace};
"));
return cSharpKernel;
}
[Theory]
// PocketView
[InlineData(Language.CSharp, "b(123)", $"<b>{PlainTextBegin}123{PlainTextEnd}</b>")]
[InlineData(Language.FSharp, "b [] [str \"123\" ]", "<b>123</b>")]
// sequence
[InlineData(Language.CSharp, "new[] { 1, 2, 3, 4 }", "<pre>")]
[InlineData(Language.FSharp, "[1; 2; 3; 4]", "<pre>")]
// sequence of anonymous objects
[InlineData(Language.CSharp, "new[] { new { a = 123 }, new { a = 456 } }", "<table>")]
[InlineData(Language.FSharp, "[{| a = 123 |}; {| a = 456 |}]", "<div>")]
public async Task Default_formatting_is_HTML(
Language language,
string submission,
string expectedContent)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var result = await kernel.SendAsync(new SubmitCode(submission));
result.Events
.Should()
.ContainSingle<ReturnValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains(expectedContent));
}
[Theory]
[InlineData(Language.CSharp, "display(\"<test></test>\")", "<test></test>")]
[InlineData(Language.FSharp, "display(\"<test></test>\")", "<test></test>")]
public async Task String_is_rendered_as_plain_text_via_display(
Language language,
string submission,
string expectedContent)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var result = await kernel.SendAsync(new SubmitCode(submission));
result.Events
.Should()
.ContainSingle<DisplayedValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/plain" &&
v.Value.ToString().Contains(expectedContent));
}
[Theory]
[InlineData(Language.CSharp, "\"hi\"", "hi")]
[InlineData(Language.FSharp, "\"hi\"", "hi")]
public async Task String_is_rendered_as_plain_text_via_implicit_return(
Language language,
string submission,
string expectedContent)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var result = await kernel.SendAsync(new SubmitCode(submission));
var valueProduced = result
.Events
.OfType<ReturnValueProduced>()
.First();
valueProduced
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/plain" &&
v.Value.ToString().Contains(expectedContent));
}
[Theory]
[InlineData(Language.CSharp, "{ \"hello\": 123 ", "application/json")]
[InlineData(Language.CSharp, "<span class=\"test\">hello! </span>", "text/html")]
public async Task String_is_rendered_as_specified_mime_type_DisplayAs(
Language language,
string stringValue,
string mimeType)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
await kernel.FindKernelByName("csharp").As<CSharpKernel>()
.SendAsync(new SendValue(nameof(stringValue), stringValue));
var code = $"stringValue.DisplayAs(\"{mimeType}\");";
var result = await kernel.SendAsync(new SubmitCode(code));
result
.Events
.Should()
.ContainSingle<DisplayedValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == mimeType &&
v.Value == stringValue);
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Display_helper_can_be_called_without_specifying_class_name(Language language)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var submission = language switch
{
Language.CSharp => "display(b(\"hi!\"));",
Language.FSharp => "display(b [] [ str \"hi!\" ]);",
};
await kernel.SendAsync(new SubmitCode(submission));
KernelEvents
.OfType<DisplayedValueProduced>()
.SelectMany(v => v.FormattedValues)
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains("<b>"));
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Displayed_value_can_be_updated(Language language)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var submission = language switch
{
Language.CSharp => "var d = display(b(\"hello\")); d.Update(b(\"world\"));",
Language.FSharp => "let d = display(b [] [ str \"hello\"])\nd.Update(b [] [str \"world\"])",
};
await kernel.SendAsync(new SubmitCode(submission));
KernelEvents
.OfType<DisplayedValueProduced>()
.SelectMany(v => v.FormattedValues)
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains("<b>hello</b>"));
KernelEvents
.OfType<DisplayedValueUpdated>()
.SelectMany(v => v.FormattedValues)
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains("<b>world</b>"));
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Displayed_value_can_be_updated_from_later_submissions(Language language)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var submissions = language switch
{
Language.CSharp => new[] { "var d = display(b(\"hello\"));", "d.Update(b(\"world\"));" },
Language.FSharp => new[] { "let d = display(b [] [ str \"hello\" ])", "d.Update(b [] [ str \"world\" ])" },
};
await kernel.SubmitCodeAsync(submissions[0]);
var updateCommandResult = await kernel.SubmitCodeAsync(submissions[1]);
updateCommandResult
.Events
.Should()
.ContainSingle<DisplayedValueUpdated>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains("<b>world</b>"));
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Value_display_and_update_are_in_right_order(Language language)
{
var kernel = CreateKernel(language, openTestingNamespaces: true);
var submission = language switch
{
Language.CSharp => "var d = display(b(\"hello\")); d.Update(b(\"world\"));",
Language.FSharp => "let d = display(b [] [ str \"hello\" ])\nd.Update(b [] [ str \"world\" ])",
};
await kernel.SendAsync(new SubmitCode(submission));
var valueEvents =
KernelEvents
.Where(e => e is DisplayedValueProduced || e is DisplayedValueUpdated)
.Select(e => e)
.ToList();
valueEvents.First().Should().BeOfType<DisplayedValueProduced>();
valueEvents.Last().Should().BeOfType<DisplayedValueUpdated>();
}
[Theory]
[InlineData(Language.CSharp, "display(HTML(\"<b>hi!</b>\"));")]
[InlineData(Language.FSharp, "display(HTML(\"<b>hi!</b>\"))")]
public async Task HTML_helper_emits_HTML_which_is_not_encoded_and_has_the_text_html_mime_type(
Language language,
string code)
{
var kernel = CreateKernel(language);
var events = kernel.KernelEvents.ToSubscribedList();
await kernel.SubmitCodeAsync(code);
events.Should().NotContainErrors();
events.Should()
.ContainSingle<DisplayedValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(f => f.Value.Equals("<b>hi!</b>") &&
f.MimeType == "text/html");
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Javascript_helper_emits_string_as_content_within_a_script_element(Language language)
{
var kernel = CreateKernel(language);
var scriptContent = "alert('Hello World!');";
var submission = language switch
{
Language.CSharp => $@"Javascript(""{scriptContent}"");",
Language.FSharp => $@"Javascript(""{scriptContent}"")",
};
await kernel.SendAsync(new SubmitCode(submission));
var formatted =
KernelEvents
.OfType<DisplayedValueProduced>()
.SelectMany(v => v.FormattedValues)
.ToArray();
formatted
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains($@"<script type=""text/javascript"">{scriptContent}</script>"));
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task CSS_helper_emits_content_within_a_chunk_of_javascript(Language language)
{
var kernel = CreateKernel(language);
var cssContent = "h1 { background: red; }";
var submission = language switch
{
Language.CSharp => $@"CSS(""{cssContent}"");",
Language.FSharp => $@"CSS(""{cssContent}"")",
};
var result = await kernel.SendAsync(new SubmitCode(submission));
result.Events
.Should()
.ContainSingle<DisplayedValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains($"var css = `{cssContent}`"));
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task it_displays_detailed_information_for_exceptions_thrown_in_user_code(Language language)
{
var kernel = CreateKernel(language);
var source = language switch
{
Language.FSharp => new[]
{
// F# syntax doesn't allow a bare `raise ...` expression at the root due to type inference being
// ambiguous, but the same effect can be achieved by wrapping the exception in a strongly-typed
// function call.
@"open System
let f (): unit =
try
raise (Exception(""the-inner-exception""))
with
| ex -> raise (DataMisalignedException(""the-outer-exception"", ex))
f ()"
},
Language.CSharp => new[]
{
@"
void f()
{
try
{
throw new Exception(""the-inner-exception"");
}
catch(Exception e)
{
throw new DataMisalignedException(""the-outer-exception"", e);
}
}
f();"
}
};
await SubmitCode(kernel, source);
KernelEvents
.Should()
.ContainSingle<CommandFailed>()
.Which
.Message
.Should()
.Contain("the-inner-exception")
.And
.Contain("the-outer-exception");
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Display_indicates_when_a_value_is_null(Language language)
{
var kernel = CreateKernel(language);
var submission = language switch
{
Language.CSharp => "display(null);",
Language.FSharp => "display(null)"
};
await kernel.SendAsync(new SubmitCode(submission));
KernelEvents.Should().NotContainErrors();
KernelEvents
.Should()
.ContainSingle<DisplayedValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains(Formatter.NullString.HtmlEncode().ToString()));
}
[Theory]
[InlineData(Language.CSharp)]
[InlineData(Language.FSharp)]
public async Task Null_return_value_is_formatted_as_null(Language language)
{
var kernel = CreateKernel(language);
var submission = language switch
{
Language.CSharp => "null",
Language.FSharp => "let o : obj = null\no"
};
await kernel.SendAsync(new SubmitCode(submission));
KernelEvents.Should().NotContainErrors();
KernelEvents
.Should()
.ContainSingle<ReturnValueProduced>()
.Which
.FormattedValues
.Should()
.ContainSingle(v =>
v.MimeType == "text/html" &&
v.Value.ToString().Contains(Formatter.NullString.HtmlEncode().ToString()));
}
[Fact]
public async Task FSharpKernel_does_not_publish_return_values_for_unit()
{
var kernel = CreateKernel(Language.FSharp);
await kernel.SubmitCodeAsync("\"Hello from F#!\" |> Console.WriteLine");
KernelEvents.Should()
.NotContain(e => e is ReturnValueProduced);
}
[Fact]
public async Task FSharpKernel_opens_System()
{
var kernel = CreateKernel(Language.FSharp);
await kernel.SubmitCodeAsync("Console.WriteLine(\"abc.fs\")");
KernelEvents.Should()
.NotContain(e => e is CommandFailed);
}
[Fact]
public async Task FSharpKernel_opens_System_IO()
{
var kernel = CreateKernel(Language.FSharp);
await kernel.SubmitCodeAsync("let t = Path.GetFileNameWithoutExtension(\"abc.fs\")");
KernelEvents.Should()
.Contain(e => e is CommandSucceeded);
}
[Fact]
public async Task FSharpKernel_opens_System_Text()
{
var kernel = CreateKernel(Language.FSharp);
var result = await kernel.SubmitCodeAsync("let t = StringBuilder()");
result.Events
.Should()
.ContainSingle<CommandSucceeded>();
}
[Fact]
public async Task FSharpKernel_does_not_open_System_Linq()
{
var kernel = CreateKernel(Language.FSharp);
await kernel.SubmitCodeAsync("let t = Enumerable.Range(0,20)");
KernelEvents.Should()
.Contain(e => e is CommandFailed);
}
[Fact]
public async Task FSharpKernel_does_not_open_System_Threading_Tasks()
{
var kernel = CreateKernel(Language.FSharp);
await kernel.SubmitCodeAsync("let t : Task<int> = Unchecked.defaultof<_>");
KernelEvents.Should()
.Contain(e => e is CommandFailed);
}
[Fact]
public async Task FSharpKernel_does_not_open_HTML_DSL()
{
var kernel = CreateKernel(Language.FSharp);
await kernel.SubmitCodeAsync("let x = p [] []");
KernelEvents.Should()
.Contain(e => e is CommandFailed);
}
}