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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Web.Razor.Generator;
using System.Web.Razor.Parser;
using System.Web.Razor.Parser.SyntaxTree;
using System.Web.Razor.Resources;
using System.Web.Razor.Test.Framework;
using System.Web.Razor.Text;
using Xunit;
namespace System.Web.Razor.Test.Parser.VB
{
public class VBHelperTest : VBHtmlMarkupParserTestBase
{
[Fact]
public void ParseHelperOutputsErrorButContinuesIfLParenFoundAfterHelperKeyword()
{
ParseDocumentTest("@Helper ()",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("()", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("()").Hidden().AutoCompleteWith(SyntaxConstants.VB.EndHelperKeyword),
new StatementBlock())),
new RazorError(
String.Format(
RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start,
String.Format(RazorResources.ErrorComponent_Character, "(")),
8, 0, 8),
new RazorError(
String.Format(RazorResources.ParseError_BlockNotTerminated, "Helper", "End Helper"),
1, 0, 1));
}
[Fact]
public void ParseHelperStatementOutputsMarkerHelperHeaderSpanOnceKeywordComplete()
{
ParseDocumentTest("@Helper ",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>(String.Empty, 8, 0, 8), headerComplete: false),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.EmptyVB().Hidden())),
new RazorError(
String.Format(RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start, RazorResources.ErrorComponent_EndOfFile),
8, 0, 8));
}
[Fact]
public void ParseHelperStatementMarksHelperSpanAsCanGrowIfMissingTrailingSpace()
{
ParseDocumentTest("@Helper",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(
Factory.CodeTransition(),
Factory.MetaCode("Helper"))),
new RazorError(
String.Format(RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start, RazorResources.ErrorComponent_EndOfFile),
7, 0, 7));
}
[Fact]
public void ParseHelperStatementTerminatesEarlyIfHeaderNotComplete()
{
ParseDocumentTest(@"@Helper
@Helper",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(
Factory.CodeTransition(),
Factory.MetaCode("Helper\r\n").Accepts(AcceptedCharacters.None),
Factory.EmptyVB().Hidden()),
new HelperBlock(
Factory.CodeTransition(),
Factory.MetaCode("Helper"))),
designTimeParser: true,
expectedErrors: new[]
{
new RazorError(
String.Format(
RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start,
String.Format(RazorResources.ErrorComponent_Character, "@")),
9, 1, 0),
new RazorError(
String.Format(
RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start,
RazorResources.ErrorComponent_EndOfFile),
16, 1, 7)
});
}
[Fact]
public void ParseHelperStatementTerminatesEarlyIfHeaderNotCompleteWithSpace()
{
ParseDocumentTest(@"@Helper @Helper",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>(String.Empty, 8, 0, 8), headerComplete: false),
Factory.CodeTransition(),
Factory.MetaCode(@"Helper ").Accepts(AcceptedCharacters.None),
Factory.EmptyVB().Hidden()),
new HelperBlock(
Factory.CodeTransition(),
Factory.MetaCode("Helper").Accepts(AcceptedCharacters.Any))),
designTimeParser: true,
expectedErrors: new[]
{
new RazorError(
String.Format(
RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start,
String.Format(RazorResources.ErrorComponent_Character, "@")),
8, 0, 8),
new RazorError(
String.Format(
RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start,
RazorResources.ErrorComponent_EndOfFile),
15, 0, 15)
});
}
[Fact]
public void ParseHelperStatementAllowsDifferentlyCasedEndHelperKeyword()
{
ParseDocumentTest(@"@Helper Foo()
end helper",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo()", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo()").Hidden(),
new StatementBlock(
Factory.Code("\r\n").AsStatement(),
Factory.MetaCode("end helper").Accepts(AcceptedCharacters.None))),
Factory.EmptyHtml()));
}
[Fact]
public void ParseHelperStatementCapturesWhitespaceToEndOfLineIfHelperStatementMissingName()
{
ParseDocumentTest(@"@Helper
",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>(" ", 8, 0, 8), headerComplete: false),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code(" ").Hidden()),
Factory.Markup("\r\n ")),
new RazorError(
String.Format(
RazorResources.ParseError_Unexpected_Character_At_Helper_Name_Start,
RazorResources.ErrorComponent_Newline),
30, 0, 30));
}
[Fact]
public void ParseHelperStatementCapturesWhitespaceToEndOfLineIfHelperStatementMissingOpenParen()
{
ParseDocumentTest(@"@Helper Foo
",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo ", 8, 0, 8), headerComplete: false),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo ").Hidden()),
Factory.Markup("\r\n ")),
new RazorError(
String.Format(RazorResources.ParseError_MissingCharAfterHelperName, "("),
15, 0, 15));
}
[Fact]
public void ParseHelperStatementCapturesAllContentToEndOfFileIfHelperStatementMissingCloseParenInParameterList()
{
ParseDocumentTest(@"@Helper Foo(Foo Bar
Biz
Boz",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo(Foo Bar\r\nBiz\r\nBoz", 8, 0, 8), headerComplete: false),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo(Foo Bar\r\nBiz\r\nBoz").Hidden())),
new RazorError(RazorResources.ParseError_UnterminatedHelperParameterList, 11, 0, 11));
}
[Fact]
public void ParseHelperStatementCapturesWhitespaceToEndOfLineIfHelperStatementMissingOpenBraceAfterParameterList()
{
ParseDocumentTest(@"@Helper Foo(foo as String)
",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo(foo as String)", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo(foo as String)")
.Hidden()
.AutoCompleteWith(SyntaxConstants.VB.EndHelperKeyword),
new StatementBlock(
Factory.Code(" \r\n").AsStatement()))),
new RazorError(
String.Format(RazorResources.ParseError_BlockNotTerminated, "Helper", "End Helper"),
1, 0, 1));
}
[Fact]
public void ParseHelperStatementContinuesParsingHelperUntilEOF()
{
ParseDocumentTest(@"@Helper Foo(foo as String)
@<p>Foo</p>",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo(foo as String)", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo(foo as String)")
.Hidden()
.AutoCompleteWith(SyntaxConstants.VB.EndHelperKeyword),
new StatementBlock(
Factory.Code("\r\n").AsStatement(),
new MarkupBlock(
Factory.Markup(" "),
Factory.MarkupTransition(),
Factory.Markup("<p>Foo</p>").Accepts(AcceptedCharacters.None)),
Factory.EmptyVB().AsStatement()))),
new RazorError(
String.Format(RazorResources.ParseError_BlockNotTerminated, "Helper", "End Helper"),
1, 0, 1));
}
[Fact]
public void ParseHelperStatementCorrectlyParsesHelperWithEmbeddedCode()
{
ParseDocumentTest(@"@Helper Foo(foo as String, bar as String)
@<p>@foo</p>
End Helper",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo(foo as String, bar as String)", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo(foo as String, bar as String)").Hidden(),
new StatementBlock(
Factory.Code("\r\n").AsStatement(),
new MarkupBlock(
Factory.Markup(" "),
Factory.MarkupTransition(),
Factory.Markup("<p>"),
new ExpressionBlock(
Factory.CodeTransition(),
Factory.Code("foo")
.AsImplicitExpression(VBCodeParser.DefaultKeywords)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
Factory.Markup("</p>\r\n").Accepts(AcceptedCharacters.None)),
Factory.EmptyVB().AsStatement(),
Factory.MetaCode("End Helper").Accepts(AcceptedCharacters.None))),
Factory.EmptyHtml()));
}
[Fact]
public void ParseHelperStatementGivesWhitespaceAfterCloseParenToMarkup()
{
ParseDocumentTest(@"@Helper Foo(string foo)
",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo(string foo)", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo(string foo)")
.Hidden()
.AutoCompleteWith(SyntaxConstants.VB.EndHelperKeyword),
new StatementBlock(
Factory.Code(" \r\n ").AsStatement()))),
designTimeParser: true,
expectedErrors:
new RazorError(
String.Format(
RazorResources.ParseError_BlockNotTerminated,
"Helper", "End Helper"),
1, 0, 1));
}
[Fact]
public void ParseHelperAcceptsNestedHelpersButOutputsError()
{
ParseDocumentTest(@"@Helper Foo(string foo)
@Helper Bar(string baz)
End Helper
End Helper",
new MarkupBlock(
Factory.EmptyHtml(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Foo(string foo)", 8, 0, 8), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Foo(string foo)").Hidden(),
new StatementBlock(
Factory.Code("\r\n ").AsStatement(),
new HelperBlock(new HelperCodeGenerator(new LocationTagged<string>("Bar(string baz)", 37, 1, 12), headerComplete: true),
Factory.CodeTransition(),
Factory.MetaCode("Helper ").Accepts(AcceptedCharacters.None),
Factory.Code("Bar(string baz)").Hidden(),
new StatementBlock(
Factory.Code("\r\n ").AsStatement(),
Factory.MetaCode("End Helper").Accepts(AcceptedCharacters.None))),
Factory.Code("\r\n").AsStatement(),
Factory.MetaCode("End Helper").Accepts(AcceptedCharacters.None))),
Factory.EmptyHtml()),
designTimeParser: true,
expectedErrors: new[]
{
new RazorError(
RazorResources.ParseError_Helpers_Cannot_Be_Nested,
30, 1, 5)
});
}
}
}
|
