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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.Parser;
using System.Web.Razor.Parser.SyntaxTree;
using System.Web.Razor.Test.Framework;
using System.Web.Razor.Text;
using System.Web.WebPages.TestUtils;
using Xunit;
namespace System.Web.Razor.Test.Parser.PartialParsing
{
public class CSharpPartialParsingTest : PartialParsingTestBase<CSharpRazorCodeLanguage>
{
[Fact]
public void ImplicitExpressionProvisionallyAcceptsDeleteOfIdentifierPartsIfDotRemains()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("foo @User. baz");
StringTextBuffer old = new StringTextBuffer("foo @User.Name baz");
RunPartialParseTest(new TextChange(10, 4, old, 0, changed),
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("User.").AsImplicitExpression(CSharpCodeParser.DefaultKeywords).Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" baz")),
additionalFlags: PartialParseResult.Provisional);
}
[Fact]
public void ImplicitExpressionAcceptsDeleteOfIdentifierPartsIfSomeOfIdentifierRemains()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("foo @Us baz");
StringTextBuffer old = new StringTextBuffer("foo @User baz");
RunPartialParseTest(new TextChange(7, 2, old, 0, changed),
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("Us").AsImplicitExpression(CSharpCodeParser.DefaultKeywords).Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" baz")));
}
[Fact]
public void ImplicitExpressionProvisionallyAcceptsMultipleInsertionIfItCausesIdentifierExpansionAndTrailingDot()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("foo @User. baz");
StringTextBuffer old = new StringTextBuffer("foo @U baz");
RunPartialParseTest(new TextChange(6, 0, old, 4, changed),
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("User.").AsImplicitExpression(CSharpCodeParser.DefaultKeywords).Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" baz")),
additionalFlags: PartialParseResult.Provisional);
}
[Fact]
public void ImplicitExpressionAcceptsMultipleInsertionIfItOnlyCausesIdentifierExpansion()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("foo @barbiz baz");
StringTextBuffer old = new StringTextBuffer("foo @bar baz");
RunPartialParseTest(new TextChange(8, 0, old, 3, changed),
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("barbiz").AsImplicitExpression(CSharpCodeParser.DefaultKeywords).Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" baz")));
}
[Fact]
public void ImplicitExpressionAcceptsIdentifierExpansionAtEndOfNonWhitespaceCharacters()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer(@"@{
@food
}");
StringTextBuffer old = new StringTextBuffer(@"@{
@foo
}");
RunPartialParseTest(new TextChange(12, 0, old, 1, changed),
new MarkupBlock(
factory.EmptyHtml(),
new StatementBlock(
factory.CodeTransition(),
factory.MetaCode("{").Accepts(AcceptedCharacters.None),
factory.Code("\r\n ").AsStatement(),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("food")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Code("\r\n").AsStatement(),
factory.MetaCode("}").Accepts(AcceptedCharacters.None)),
factory.EmptyHtml()));
}
[Fact]
public void ImplicitExpressionAcceptsIdentifierAfterDotAtEndOfNonWhitespaceCharacters()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer(@"@{
@foo.d
}");
StringTextBuffer old = new StringTextBuffer(@"@{
@foo.
}");
RunPartialParseTest(new TextChange(13, 0, old, 1, changed),
new MarkupBlock(
factory.EmptyHtml(),
new StatementBlock(
factory.CodeTransition(),
factory.MetaCode("{").Accepts(AcceptedCharacters.None),
factory.Code("\r\n ").AsStatement(),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo.d")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Code("\r\n").AsStatement(),
factory.MetaCode("}").Accepts(AcceptedCharacters.None)),
factory.EmptyHtml()));
}
[Fact]
public void ImplicitExpressionAcceptsDotAtEndOfNonWhitespaceCharacters()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer(@"@{
@foo.
}");
StringTextBuffer old = new StringTextBuffer(@"@{
@foo
}");
RunPartialParseTest(new TextChange(12, 0, old, 1, changed),
new MarkupBlock(
factory.EmptyHtml(),
new StatementBlock(
factory.CodeTransition(),
factory.MetaCode("{").Accepts(AcceptedCharacters.None),
factory.Code("\r\n ").AsStatement(),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code(@"foo.")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Code("\r\n").AsStatement(),
factory.MetaCode("}").Accepts(AcceptedCharacters.None)),
factory.EmptyHtml()));
}
[Fact]
public void ImplicitExpressionRejectsChangeWhichWouldHaveBeenAcceptedIfLastChangeWasProvisionallyAcceptedOnDifferentSpan()
{
var factory = SpanFactory.CreateCsHtml();
// Arrange
TextChange dotTyped = new TextChange(8, 0, new StringTextBuffer("foo @foo @bar"), 1, new StringTextBuffer("foo @foo. @bar"));
TextChange charTyped = new TextChange(14, 0, new StringTextBuffer("foo @foo. @bar"), 1, new StringTextBuffer("foo @foo. @barb"));
TestParserManager manager = CreateParserManager();
manager.InitializeWithDocument(dotTyped.OldBuffer);
// Apply the dot change
Assert.Equal(PartialParseResult.Provisional | PartialParseResult.Accepted, manager.CheckForStructureChangesAndWait(dotTyped));
// Act (apply the identifier start char change)
PartialParseResult result = manager.CheckForStructureChangesAndWait(charTyped);
// Assert
Assert.Equal(PartialParseResult.Rejected, result);
Assert.False(manager.Parser.LastResultProvisional, "LastResultProvisional flag should have been cleared but it was not");
ParserTestBase.EvaluateParseTree(manager.Parser.CurrentParseTree,
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(". "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("barb")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.EmptyHtml()));
}
[Fact]
public void ImplicitExpressionAcceptsIdentifierTypedAfterDotIfLastChangeWasProvisionalAcceptanceOfDot()
{
var factory = SpanFactory.CreateCsHtml();
// Arrange
TextChange dotTyped = new TextChange(8, 0, new StringTextBuffer("foo @foo bar"), 1, new StringTextBuffer("foo @foo. bar"));
TextChange charTyped = new TextChange(9, 0, new StringTextBuffer("foo @foo. bar"), 1, new StringTextBuffer("foo @foo.b bar"));
TestParserManager manager = CreateParserManager();
manager.InitializeWithDocument(dotTyped.OldBuffer);
// Apply the dot change
Assert.Equal(PartialParseResult.Provisional | PartialParseResult.Accepted, manager.CheckForStructureChangesAndWait(dotTyped));
// Act (apply the identifier start char change)
PartialParseResult result = manager.CheckForStructureChangesAndWait(charTyped);
// Assert
Assert.Equal(PartialParseResult.Accepted, result);
Assert.False(manager.Parser.LastResultProvisional, "LastResultProvisional flag should have been cleared but it was not");
ParserTestBase.EvaluateParseTree(manager.Parser.CurrentParseTree,
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo.b")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" bar")));
}
[Fact]
public void ImplicitExpressionProvisionallyAcceptsDotAfterIdentifierInMarkup()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("foo @foo. bar");
StringTextBuffer old = new StringTextBuffer("foo @foo bar");
RunPartialParseTest(new TextChange(8, 0, old, 1, changed),
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo.")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" bar")),
additionalFlags: PartialParseResult.Provisional);
}
[Fact]
public void ImplicitExpressionAcceptsAdditionalIdentifierCharactersIfEndOfSpanIsIdentifier()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("foo @foob bar");
StringTextBuffer old = new StringTextBuffer("foo @foo bar");
RunPartialParseTest(new TextChange(8, 0, old, 1, changed),
new MarkupBlock(
factory.Markup("foo "),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foob")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.Markup(" bar")));
}
[Fact]
public void ImplicitExpressionAcceptsAdditionalIdentifierStartCharactersIfEndOfSpanIsDot()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("@{@foo.b}");
StringTextBuffer old = new StringTextBuffer("@{@foo.}");
RunPartialParseTest(new TextChange(7, 0, old, 1, changed),
new MarkupBlock(
factory.EmptyHtml(),
new StatementBlock(
factory.CodeTransition(),
factory.MetaCode("{").Accepts(AcceptedCharacters.None),
factory.EmptyCSharp().AsStatement(),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo.b")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.EmptyCSharp().AsStatement(),
factory.MetaCode("}").Accepts(AcceptedCharacters.None)),
factory.EmptyHtml()));
}
[Fact]
public void ImplicitExpressionAcceptsDotIfTrailingDotsAreAllowed()
{
var factory = SpanFactory.CreateCsHtml();
StringTextBuffer changed = new StringTextBuffer("@{@foo.}");
StringTextBuffer old = new StringTextBuffer("@{@foo}");
RunPartialParseTest(new TextChange(6, 0, old, 1, changed),
new MarkupBlock(
factory.EmptyHtml(),
new StatementBlock(
factory.CodeTransition(),
factory.MetaCode("{").Accepts(AcceptedCharacters.None),
factory.EmptyCSharp().AsStatement(),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo.")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true)
.Accepts(AcceptedCharacters.NonWhiteSpace)),
factory.EmptyCSharp().AsStatement(),
factory.MetaCode("}").Accepts(AcceptedCharacters.None)),
factory.EmptyHtml()));
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfIfKeywordTyped()
{
RunTypeKeywordTest("if");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfDoKeywordTyped()
{
RunTypeKeywordTest("do");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfTryKeywordTyped()
{
RunTypeKeywordTest("try");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfForKeywordTyped()
{
RunTypeKeywordTest("for");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfForEachKeywordTyped()
{
RunTypeKeywordTest("foreach");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfWhileKeywordTyped()
{
RunTypeKeywordTest("while");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfSwitchKeywordTyped()
{
RunTypeKeywordTest("switch");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfLockKeywordTyped()
{
RunTypeKeywordTest("lock");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfUsingKeywordTyped()
{
RunTypeKeywordTest("using");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfSectionKeywordTyped()
{
RunTypeKeywordTest("section");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfInheritsKeywordTyped()
{
RunTypeKeywordTest("inherits");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfHelperKeywordTyped()
{
RunTypeKeywordTest("helper");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfFunctionsKeywordTyped()
{
RunTypeKeywordTest("functions");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfNamespaceKeywordTyped()
{
RunTypeKeywordTest("namespace");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfClassKeywordTyped()
{
RunTypeKeywordTest("class");
}
[Fact]
public void ImplicitExpressionCorrectlyTriggersReparseIfLayoutKeywordTyped()
{
RunTypeKeywordTest("layout");
}
}
}
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