214 lines
11 KiB
C#
214 lines
11 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using System.Linq;
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using Xunit;
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namespace Microsoft.AspNetCore.Razor.Language.Legacy
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{
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public class CSharpSpecialBlockTest : CsHtmlCodeParserTestBase
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{
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[Fact]
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public void ParseInheritsStatementMarksInheritsSpanAsCanGrowIfMissingTrailingSpace()
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{
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ParseBlockTest("inherits",
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new DirectiveBlock(new DirectiveChunkGenerator(CSharpCodeParser.InheritsDirectiveDescriptor),
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Factory.MetaCode("inherits").Accepts(AcceptedCharacters.None)),
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new RazorError(
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LegacyResources.FormatUnexpectedEOFAfterDirective(CSharpCodeParser.InheritsDirectiveDescriptor.Name, "type"),
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new SourceLocation(8, 0, 8), 1));
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}
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[Fact]
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public void InheritsBlockAcceptsMultipleGenericArguments()
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{
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ParseBlockTest("inherits Foo.Bar<Biz<Qux>, string, int>.Baz",
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new DirectiveBlock(new DirectiveChunkGenerator(CSharpCodeParser.InheritsDirectiveDescriptor),
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Factory.MetaCode("inherits").Accepts(AcceptedCharacters.None),
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Factory.Span(SpanKind.Code, " ", CSharpSymbolType.WhiteSpace).Accepts(AcceptedCharacters.WhiteSpace),
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Factory.Span(SpanKind.Code, "Foo.Bar<Biz<Qux>, string, int>.Baz", markup: false)
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.Accepts(AcceptedCharacters.NonWhiteSpace)
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.With(new DirectiveTokenChunkGenerator(CSharpCodeParser.InheritsDirectiveDescriptor.Tokens.First()))));
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}
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[Fact]
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public void InheritsBlockOutputsErrorIfInheritsNotFollowedByTypeButAcceptsEntireLineAsCode()
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{
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ParseBlockTest("inherits " + Environment.NewLine + "foo",
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new DirectiveBlock(new DirectiveChunkGenerator(CSharpCodeParser.InheritsDirectiveDescriptor),
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Factory.MetaCode("inherits").Accepts(AcceptedCharacters.None),
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Factory.Span(SpanKind.Code, " ", CSharpSymbolType.WhiteSpace).Accepts(AcceptedCharacters.WhiteSpace)),
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new RazorError(LegacyResources.FormatDirectiveExpectsTypeName(CSharpCodeParser.InheritsDirectiveDescriptor.Name), 24, 0, 24, Environment.NewLine.Length));
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}
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[Fact]
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public void NamespaceImportInsideCodeBlockCausesError()
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{
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ParseBlockTest("{ using Foo.Bar.Baz; var foo = bar; }",
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new StatementBlock(
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Factory.MetaCode("{").Accepts(AcceptedCharacters.None),
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Factory.Code(" using Foo.Bar.Baz; var foo = bar; ")
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.AsStatement()
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.AutoCompleteWith(autoCompleteString: null),
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Factory.MetaCode("}").Accepts(AcceptedCharacters.None)
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),
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new RazorError(
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LegacyResources.ParseError_NamespaceImportAndTypeAlias_Cannot_Exist_Within_CodeBlock,
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new SourceLocation(2, 0, 2),
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length: 5));
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}
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[Fact]
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public void TypeAliasInsideCodeBlockIsNotHandledSpecially()
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{
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ParseBlockTest("{ using Foo = Bar.Baz; var foo = bar; }",
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new StatementBlock(
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Factory.MetaCode("{").Accepts(AcceptedCharacters.None),
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Factory.Code(" using Foo = Bar.Baz; var foo = bar; ")
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.AsStatement()
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.AutoCompleteWith(autoCompleteString: null),
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Factory.MetaCode("}").Accepts(AcceptedCharacters.None)
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),
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new RazorError(
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LegacyResources.ParseError_NamespaceImportAndTypeAlias_Cannot_Exist_Within_CodeBlock,
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new SourceLocation(2, 0, 2),
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length: 5));
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}
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[Fact]
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public void Plan9FunctionsKeywordInsideCodeBlockIsNotHandledSpecially()
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{
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ParseBlockTest("{ functions Foo; }",
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new StatementBlock(
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Factory.MetaCode("{").Accepts(AcceptedCharacters.None),
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Factory.Code(" functions Foo; ")
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.AsStatement()
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.AutoCompleteWith(autoCompleteString: null),
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Factory.MetaCode("}").Accepts(AcceptedCharacters.None)
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));
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}
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[Fact]
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public void NonKeywordStatementInCodeBlockIsHandledCorrectly()
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{
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ParseBlockTest("{" + Environment.NewLine
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+ " List<dynamic> photos = gallery.Photo.ToList();" + Environment.NewLine
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+ "}",
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new StatementBlock(
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Factory.MetaCode("{").Accepts(AcceptedCharacters.None),
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Factory.Code($"{Environment.NewLine} List<dynamic> photos = gallery.Photo.ToList();{Environment.NewLine}")
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.AsStatement()
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.AutoCompleteWith(autoCompleteString: null),
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Factory.MetaCode("}").Accepts(AcceptedCharacters.None)
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));
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}
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[Fact]
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public void ParseBlockBalancesBracesOutsideStringsIfFirstCharacterIsBraceAndReturnsSpanOfTypeCode()
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{
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// Arrange
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const string code = "foo\"b}ar\" if(condition) { string.Format(\"{0}\"); } ";
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// Act/Assert
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ParseBlockTest("{" + code + "}",
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new StatementBlock(
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Factory.MetaCode("{").Accepts(AcceptedCharacters.None),
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Factory.Code(code)
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.AsStatement()
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.AutoCompleteWith(autoCompleteString: null),
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Factory.MetaCode("}").Accepts(AcceptedCharacters.None)
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));
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}
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[Fact]
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public void ParseBlockBalancesParensOutsideStringsIfFirstCharacterIsParenAndReturnsSpanOfTypeExpression()
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{
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// Arrange
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const string code = "foo\"b)ar\" if(condition) { string.Format(\"{0}\"); } ";
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// Act/Assert
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ParseBlockTest("(" + code + ")",
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new ExpressionBlock(
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Factory.MetaCode("(").Accepts(AcceptedCharacters.None),
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Factory.Code(code).AsExpression(),
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Factory.MetaCode(")").Accepts(AcceptedCharacters.None)
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));
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}
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[Fact]
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public void ParseBlockBalancesBracesAndOutputsContentAsClassLevelCodeSpanIfFirstIdentifierIsFunctionsKeyword()
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{
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const string code = " foo(); \"bar}baz\" ";
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ParseBlockTest("functions {" + code + "} zoop",
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new DirectiveBlock(new DirectiveChunkGenerator(CSharpCodeParser.FunctionsDirectiveDescriptor),
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Factory.MetaCode("functions").Accepts(AcceptedCharacters.None),
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Factory.Span(SpanKind.Markup, " ", CSharpSymbolType.WhiteSpace).Accepts(AcceptedCharacters.AllWhiteSpace),
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Factory.MetaCode("{").AutoCompleteWith(null, atEndOfSpan: true).Accepts(AcceptedCharacters.None),
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Factory.Code(code).AsStatement(),
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Factory.MetaCode("}").Accepts(AcceptedCharacters.None)));
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}
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[Fact]
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public void ParseBlockDoesNoErrorRecoveryForFunctionsBlock()
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{
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ParseBlockTest("functions { { { { { } zoop",
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new DirectiveBlock(new DirectiveChunkGenerator(CSharpCodeParser.FunctionsDirectiveDescriptor),
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Factory.MetaCode("functions").Accepts(AcceptedCharacters.None),
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Factory.Span(SpanKind.Markup, " ", CSharpSymbolType.WhiteSpace).Accepts(AcceptedCharacters.AllWhiteSpace),
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Factory.MetaCode("{").AutoCompleteWith("}", atEndOfSpan: true).Accepts(AcceptedCharacters.None),
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Factory.Code(" { { { { } zoop").AsStatement()),
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new RazorError(
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LegacyResources.FormatParseError_Expected_EndOfBlock_Before_EOF("functions", "}", "{"),
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new SourceLocation(10, 0, 10),
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length: 1));
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}
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[Fact]
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public void ParseBlockIgnoresFunctionsUnlessAllLowerCase()
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{
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ParseBlockTest("Functions { foo() }",
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new ExpressionBlock(
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Factory.Code("Functions")
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.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
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.Accepts(AcceptedCharacters.NonWhiteSpace)));
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}
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[Fact]
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public void ParseBlockIgnoresSingleSlashAtStart()
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{
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ParseBlockTest("@/ foo",
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new ExpressionBlock(
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Factory.CodeTransition(),
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Factory.EmptyCSharp()
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.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
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.Accepts(AcceptedCharacters.NonWhiteSpace)),
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new RazorError(
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LegacyResources.FormatParseError_Unexpected_Character_At_Start_Of_CodeBlock_CS("/"),
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new SourceLocation(1, 0, 1),
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length: 1));
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}
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[Fact]
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public void ParseBlockTerminatesSingleLineCommentAtEndOfLine()
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{
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ParseBlockTest("if(!false) {" + Environment.NewLine
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+ " // Foo" + Environment.NewLine
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+ "\t<p>A real tag!</p>" + Environment.NewLine
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+ "}",
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new StatementBlock(
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Factory.Code($"if(!false) {{{Environment.NewLine} // Foo{Environment.NewLine}").AsStatement(),
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new MarkupBlock(
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Factory.Markup("\t"),
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new MarkupTagBlock(
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Factory.Markup("<p>").Accepts(AcceptedCharacters.None)),
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Factory.Markup("A real tag!"),
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new MarkupTagBlock(
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Factory.Markup("</p>").Accepts(AcceptedCharacters.None)),
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Factory.Markup(Environment.NewLine).Accepts(AcceptedCharacters.None)),
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Factory.Code("}").AsStatement()
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));
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}
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}
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}
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