42 lines
2.0 KiB
C#
42 lines
2.0 KiB
C#
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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using System.IO;
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using System.Web.Razor.Text;
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using System.Web.Razor.Tokenizer;
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using System.Web.Razor.Tokenizer.Symbols;
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using Xunit;
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namespace System.Web.Razor.Test.Tokenizer
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{
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public class TokenizerLookaheadTest : HtmlTokenizerTestBase
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{
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[Fact]
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public void After_Cancelling_Lookahead_Tokenizer_Returns_Same_Tokens_As_It_Did_Before_Lookahead()
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{
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HtmlTokenizer tokenizer = new HtmlTokenizer(new SeekableTextReader(new StringReader("<foo>")));
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using (tokenizer.Source.BeginLookahead())
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{
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Assert.Equal(new HtmlSymbol(0, 0, 0, "<", HtmlSymbolType.OpenAngle), tokenizer.NextSymbol());
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Assert.Equal(new HtmlSymbol(1, 0, 1, "foo", HtmlSymbolType.Text), tokenizer.NextSymbol());
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Assert.Equal(new HtmlSymbol(4, 0, 4, ">", HtmlSymbolType.CloseAngle), tokenizer.NextSymbol());
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}
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Assert.Equal(new HtmlSymbol(0, 0, 0, "<", HtmlSymbolType.OpenAngle), tokenizer.NextSymbol());
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Assert.Equal(new HtmlSymbol(1, 0, 1, "foo", HtmlSymbolType.Text), tokenizer.NextSymbol());
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Assert.Equal(new HtmlSymbol(4, 0, 4, ">", HtmlSymbolType.CloseAngle), tokenizer.NextSymbol());
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}
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[Fact]
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public void After_Accepting_Lookahead_Tokenizer_Returns_Next_Token()
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{
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HtmlTokenizer tokenizer = new HtmlTokenizer(new SeekableTextReader(new StringReader("<foo>")));
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using (LookaheadToken lookahead = tokenizer.Source.BeginLookahead())
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{
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Assert.Equal(new HtmlSymbol(0, 0, 0, "<", HtmlSymbolType.OpenAngle), tokenizer.NextSymbol());
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Assert.Equal(new HtmlSymbol(1, 0, 1, "foo", HtmlSymbolType.Text), tokenizer.NextSymbol());
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lookahead.Accept();
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}
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Assert.Equal(new HtmlSymbol(4, 0, 4, ">", HtmlSymbolType.CloseAngle), tokenizer.NextSymbol());
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}
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}
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}
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