public void CheckForStructureChangesStartsFullReparseIfChangeOverlapsMultipleSpans() {
// Arrange
RazorEditorParser parser = new RazorEditorParser(CreateHost(), TestLinePragmaFileName);
ITextBuffer original = new StringTextBuffer("Foo @bar Baz");
ITextBuffer changed = new StringTextBuffer("Foo @bap Daz");
TextChange change = new TextChange(7, 3, original, 3, changed);
ManualResetEventSlim parseComplete = new ManualResetEventSlim();
int parseCount = 0;
parser.DocumentParseComplete += (sender, args) => {
Interlocked.Increment(ref parseCount);
parseComplete.Set();
};
Assert.AreEqual(PartialParseResult.Rejected, parser.CheckForStructureChanges(new TextChange(0, 0, new StringTextBuffer(String.Empty), 12, original)));
MiscUtils.DoWithTimeoutIfNotDebugging(parseComplete.Wait); // Wait for the parse to finish
parseComplete.Reset();
// Act
PartialParseResult result = parser.CheckForStructureChanges(change);
// Assert
Assert.AreEqual(PartialParseResult.Rejected, result);
MiscUtils.DoWithTimeoutIfNotDebugging(parseComplete.Wait);
Assert.AreEqual(2, parseCount);
}
public void TreesAreDifferentReturnsFalseIfTreeStructureIsSame()
{
var factory = SpanFactory.CreateCsHtml();
var original = new MarkupBlock(
factory.Markup("<p>"),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("f")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: false)),
factory.Markup("</p>"));
factory.Reset();
var modified = new MarkupBlock(
factory.Markup("<p>"),
new ExpressionBlock(
factory.CodeTransition(),
factory.Code("foo")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: false)),
factory.Markup("</p>"));
original.LinkNodes();
modified.LinkNodes();
var oldBuffer = new StringTextBuffer("<p>@f</p>");
var newBuffer = new StringTextBuffer("<p>@foo</p>");
Assert.False(BackgroundParser.TreesAreDifferent(
original, modified, new[] {
new TextChange(position: 5, oldLength: 0, oldBuffer: oldBuffer, newLength: 2, newBuffer: newBuffer)
}));
}
internal virtual void RunParseTest(string document, Func<ParserBase, Action> parserActionSelector, Block expectedRoot, IList<RazorError> expectedErrors, bool designTimeParser) {
// Create the source
using (StringTextBuffer reader = new StringTextBuffer(document)) {
ParserResults results = null;
try {
ParserBase codeParser = CreateCodeParser();
MarkupParser markupParser = CreateMarkupParser();
SyntaxTreeBuilderVisitor listener = new SyntaxTreeBuilderVisitor();
ParserContext context = CreateParserRun(new TextBufferReader(reader), codeParser, markupParser, listener);
context.DesignTimeMode = designTimeParser;
codeParser.Context = context;
markupParser.Context = context;
// Run the parser
parserActionSelector(context.ActiveParser)();
context.OnComplete();
// Collect the results
results = listener.Results;
EvaluateResults(TestContext, results, expectedRoot, expectedErrors);
}
finally {
if (TestContext != null && results != null && results.Document != null) {
TestContext.WriteLine(String.Empty);
TestContext.WriteLine("Actual Parse Tree:");
WriteNode(0, TestContext, results.Document);
}
}
}
}
public void TreesAreDifferentReturnsFalseForAddedContent(string content)
{
// Arrange
var factory = SpanFactory.CreateCsHtml();
var blockFactory = new BlockFactory(factory);
var original = new MarkupBlock(
blockFactory.MarkupTagBlock("<p>"),
blockFactory.TagHelperBlock(
tagName: "div",
tagMode: TagMode.StartTagAndEndTag,
start: new SourceLocation(3, 0, 3),
startTag: blockFactory.MarkupTagBlock("<div>"),
children: new SyntaxTreeNode[]
{
factory.Markup($"{Environment.NewLine}{Environment.NewLine}")
},
endTag: blockFactory.MarkupTagBlock("</div>")),
blockFactory.MarkupTagBlock("</p>"));
factory.Reset();
var modified = new MarkupBlock(
blockFactory.MarkupTagBlock("<p>"),
blockFactory.TagHelperBlock(
tagName: "div",
tagMode: TagMode.StartTagAndEndTag,
start: new SourceLocation(3, 0, 3),
startTag: blockFactory.MarkupTagBlock("<div>"),
children: new SyntaxTreeNode[]
{
factory.Markup($"{Environment.NewLine}{content}{Environment.NewLine}")
},
endTag: blockFactory.MarkupTagBlock("</div>")),
blockFactory.MarkupTagBlock("</p>"));
original.LinkNodes();
modified.LinkNodes();
var oldBuffer = new StringTextBuffer($"<p><div>{Environment.NewLine}{Environment.NewLine}</div></p>");
var newBuffer = new StringTextBuffer(
$"<p><div>{Environment.NewLine}{content}{Environment.NewLine}</div></p>");
// Act
var treesAreDifferent = BackgroundParser.TreesAreDifferent(
original,
modified,
new[]
{
new TextChange(
position: 8 + Environment.NewLine.Length,
oldLength: 0,
oldBuffer: oldBuffer,
newLength: content.Length,
newBuffer: newBuffer)
});
// Assert
Assert.False(treesAreDifferent);
}
public void SpanWithAcceptTrailingDotOffProvisionallyAcceptsEndReplacementWithTrailingDot() {
// Arrange
var span = new ImplicitExpressionSpan("abcd.", CSharpCodeParser.DefaultKeywords, acceptTrailingDot: false, acceptedCharacters: AcceptedCharacters.None);
var newBuffer = new StringTextBuffer("abcdef.");
var oldBuffer = new StringTextBuffer("abcd.");
var textChange = new TextChange(0, 5, oldBuffer, 7, newBuffer);
// Act
PartialParseResult result = span.ApplyChange(textChange);
// Assert
Assert.AreEqual(PartialParseResult.Accepted | PartialParseResult.Provisional, result);
}
public void SpanWithAcceptTrailingDotOnAcceptsIntelliSenseReplaceWhichActuallyInsertsDot() {
// Arrange
var span = new ImplicitExpressionSpan("abcd", CSharpCodeParser.DefaultKeywords, acceptTrailingDot: true, acceptedCharacters: AcceptedCharacters.None);
var newBuffer = new StringTextBuffer("abcd.");
var oldBuffer = new StringTextBuffer("abcd");
var textChange = new TextChange(0, 4, oldBuffer, 5, newBuffer);
// Act
PartialParseResult result = span.ApplyChange(textChange);
// Assert
Assert.AreEqual(PartialParseResult.Accepted, result);
}
public void TreesAreDifferentReturnsTrueIfTreeStructureIsDifferent()
{
var factory = SpanFactory.CreateCsHtml();
Block original = new MarkupBlock(
factory.Markup("<p>"),
new ExpressionBlock(
factory.CodeTransition()),
factory.Markup("</p>"));
Block modified = new MarkupBlock(
factory.Markup("<p>"),
new ExpressionBlock(
factory.CodeTransition("@"),
factory.Code("f")
.AsImplicitExpression(CSharpCodeParser.DefaultKeywords, acceptTrailingDot: false)),
factory.Markup("</p>"));
ITextBuffer oldBuffer = new StringTextBuffer("<p>@</p>");
ITextBuffer newBuffer = new StringTextBuffer("<p>@f</p>");
Assert.True(BackgroundParser.TreesAreDifferent(
original, modified, new[] {
new TextChange(position: 4, oldLength: 0, oldBuffer: oldBuffer, newLength: 1, newBuffer: newBuffer)
}));
}
public void CheckForStructureChangesStartsReparseAndFiresDocumentParseCompletedEventIfNoAdditionalChangesQueued() {
// Arrange
using (RazorEditorParser parser = CreateClientParser()) {
StringTextBuffer input = new StringTextBuffer(SimpleCSHTMLDocument.ReadAllText());
DocumentParseCompleteEventArgs capturedArgs = null;
ManualResetEventSlim parseComplete = new ManualResetEventSlim(false);
parser.DocumentParseComplete += (sender, args) => {
capturedArgs = args;
parseComplete.Set();
};
// Act
parser.CheckForStructureChanges(new TextChange(0, 0, new StringTextBuffer(String.Empty), input.Length, input));
// Assert
MiscUtils.DoWithTimeoutIfNotDebugging(parseComplete.Wait);
Assert.AreEqual(SimpleCSHTMLDocumentGenerated.ReadAllText(),
MiscUtils.StripRuntimeVersion(
capturedArgs.GeneratorResults.GeneratedCode.GenerateCode<CSharpCodeProvider>()
));
}
}
public void NormalizeDoesntAffectShrinkingReplacements()
{
// Arrange
var newBuffer = new StringTextBuffer("D");
var oldBuffer = new StringTextBuffer("DateTime");
var original = new TextChange(0, 8, oldBuffer, 1, newBuffer);
// Act
TextChange normalized = original.Normalize();
// Assert
Assert.Equal(original, normalized);
}
public void NormalizeDoesntAffectChangesWithoutCommonPrefixes()
{
// Arrange
var newBuffer = new StringTextBuffer("DateTime.");
var oldBuffer = new StringTextBuffer("Date.");
var original = new TextChange(0, 5, oldBuffer, 9, newBuffer);
// Act
TextChange normalized = original.Normalize();
// Assert
Assert.Equal(original, normalized);
}
public void NormalizeFixesUpIntelliSenseStyleReplacements()
{
// Arrange
var newBuffer = new StringTextBuffer("Date.");
var oldBuffer = new StringTextBuffer("Date");
var original = new TextChange(0, 4, oldBuffer, 5, newBuffer);
// Act
TextChange normalized = original.Normalize();
// Assert
Assert.Equal(new TextChange(4, 0, oldBuffer, 1, newBuffer), normalized);
}
public void ApplyChangeWithReplacedTextReturnsNewContentWithChangeApplied()
{
// Arrange
var newBuffer = new StringTextBuffer("abcdefg");
var oldBuffer = new StringTextBuffer("");
var textChange = new TextChange(1, 1, oldBuffer, 2, newBuffer);
// Act
string text = textChange.ApplyChange("abcdefg", 1);
// Assert
Assert.Equal("bcbcdefg", text);
}
public void NewTextWithReplaceReturnsChangedTextFromBuffer()
{
// Arrange
var newBuffer = new StringTextBuffer("test");
var oldBuffer = new StringTextBuffer("tebb");
var textChange = new TextChange(2, 2, oldBuffer, 1, newBuffer);
// Act
string newText = textChange.NewText;
string oldText = textChange.OldText;
// Assert
Assert.Equal("s", newText);
Assert.Equal("bb", oldText);
}
public void NewTextWithDeleteReturnsEmptyString()
{
// Arrange
var newBuffer = new StringTextBuffer("test");
var oldBuffer = new StringTextBuffer("");
var textChange = new TextChange(1, 1, oldBuffer, 0, newBuffer);
// Act
string text = textChange.NewText;
// Assert
Assert.Equal(String.Empty, text);
}
public void NewTextWithInsertReturnsChangedTextFromBuffer()
{
// Arrange
var newBuffer = new StringTextBuffer("test");
var oldBuffer = new StringTextBuffer("");
var textChange = new TextChange(0, 0, oldBuffer, 3, newBuffer);
// Act
string text = textChange.NewText;
string oldText = textChange.OldText;
// Assert
Assert.Equal("tes", text);
Assert.Equal("", oldText);
}
public void OldTextReturnsOldSpanFromOldBuffer2()
{
// Arrange
var newBuffer = new StringTextBuffer("test");
var oldBuffer = new StringTextBuffer("text");
var textChange = new TextChange(2, 2, oldBuffer, 1, newBuffer);
// Act
string text = textChange.OldText;
// Assert
Assert.Equal("xt", text);
}
private static void RunDisposeTest(Action<LookaheadTextReader> triggerAction)
{
// Arrange
var source = new StringTextBuffer("abcdefg");
var reader = new TextBufferReader(source);
// Act
triggerAction(reader);
// Assert
Assert.True(source.Disposed);
}
public void ApplyChangeWithInsertedTextReturnsNewContentWithChangeApplied()
{
// Arrange
var newBuffer = new StringTextBuffer("test");
var oldBuffer = new StringTextBuffer("");
var textChange = new TextChange(0, 0, oldBuffer, 3, newBuffer);
// Act
string text = textChange.ApplyChange("abcd", 0);
// Assert
Assert.Equal("tesabcd", text);
}