public void CalculateSpan_StartPositionExceedsSnapshotLength_ReturnsSpanWithEndOfFile()
{
// These values were taken from a real analysis issue
// Rule "cpp:S113 - no newline at end of file" returns an offset after the end of the file.
// Arrange
var issue = new DummyAnalysisIssueLocation
{
StartLine = 53,
StartLineOffset = 2,
EndLine = 53,
EndLineOffset = 3,
LineHash = "some hash"
};
var firstLine = new VSLineDescription
{
ZeroBasedLineNumber = 52,
LineLength = 1,
LineStartPosition = 1599,
Text = "some text"
};
// Second line should not be used in this case
var secondLine = new VSLineDescription
{
ZeroBasedLineNumber = -999,
LineLength = -999,
LineStartPosition = -999
};
checksumCalculatorMock.Setup(x => x.Calculate(firstLine.Text)).Returns(issue.LineHash);
var textSnapshotMock = CreateSnapshotMock(snapShotLength: 1600, lines: new[] { firstLine, secondLine });
// Act
var result = testSubject.CalculateSpan(issue, textSnapshotMock.Object);
// Assert
result.IsEmpty.Should().BeFalse();
result.Start.Position.Should().Be(1599); // firstLine.LineStartPosition. Ignore offset because that will take us beyond the end of file
result.End.Position.Should().Be(1600); // snapshot length
}
public void CalculateSpan_EndLineIsZero_ReturnsSpanOfTheEntireStartLine()
{
// If issue.EndLine is zero the whole of the start line should be selected
// Arrange
var issue = new DummyAnalysisIssueLocation
{
StartLine = 22,
StartLineOffset = 2,
EndLine = 0,
EndLineOffset = 0,
LineHash = "some hash"
};
var firstLine = new VSLineDescription
{
ZeroBasedLineNumber = 21,
LineLength = 34,
LineStartPosition = 103,
Text = "some text"
};
// The second VS line shouldn't be used in this case
var secondLine = new VSLineDescription
{
ZeroBasedLineNumber = 25,
LineLength = 100,
LineStartPosition = 1010
};
checksumCalculatorMock.Setup(x => x.Calculate(firstLine.Text)).Returns(issue.LineHash);
var textSnapshotMock = CreateSnapshotMock(lines: new[] { firstLine, secondLine });
// Act
var result = testSubject.CalculateSpan(issue, textSnapshotMock.Object);
// Assert
result.IsEmpty.Should().BeFalse();
result.Start.Position.Should().Be(103); // firstLine.LineStartPosition. Ignore issue.StartLineOffset in this case
result.End.Position.Should().Be(137); // firstLine.LineStartPosition + firstLine.LineLength
}
public void CalculateSpan_IssueLinesInsideSnapshot_ReturnsSpanWithCorrectPositions()
{
// Arrange
var issue = new DummyAnalysisIssueLocation
{
StartLine = 3,
StartLineOffset = 10,
EndLine = 4,
EndLineOffset = 20,
LineHash = "some hash"
};
var firstLine = new VSLineDescription
{
ZeroBasedLineNumber = 2,
LineLength = 10,
LineStartPosition = 35,
Text = "some text"
};
var secondLine = new VSLineDescription
{
ZeroBasedLineNumber = 3,
LineLength = 25,
LineStartPosition = 47
};
checksumCalculatorMock.Setup(x => x.Calculate(firstLine.Text)).Returns(issue.LineHash);
var textSnapshotMock = CreateSnapshotMock(lines: new[] { firstLine, secondLine });
// Act
var result = testSubject.CalculateSpan(issue, textSnapshotMock.Object);
// Assert
result.IsEmpty.Should().BeFalse();
result.Start.Position.Should().Be(45); // firstLine.LineStartPosition + issue.StartLineOffset
result.End.Position.Should().Be(67); // secondLine.LineStartPosition + issue.EndLineOffset
}
public void CalculateSpan_EndPositionExceedsSnapshotLength()
{
// Defensive: handle the issue end position being beyond the end of the snapshot
// (we have not seen this in practice so far)
// Arrange
var issue = new DummyAnalysisIssueLocation
{
StartLine = 53,
StartLineOffset = 2,
EndLine = 53,
EndLineOffset = 12,
LineHash = "some hash"
};
// The issue is on a single line in this case, but the issue end position
// is beyond the end of the line.
var vsLine = new VSLineDescription
{
ZeroBasedLineNumber = 52,
LineLength = 10,
LineStartPosition = 1599,
Text = "some text"
};
var textSnapshotMock = CreateSnapshotMock(lines: vsLine, snapShotLength: 1602);
checksumCalculatorMock.Setup(x => x.Calculate(vsLine.Text)).Returns(issue.LineHash);
// Act
var result = testSubject.CalculateSpan(issue, textSnapshotMock.Object);
// Assert
result.IsEmpty.Should().BeFalse();
result.Start.Position.Should().Be(1601); // vsLine.LineStartPosition + issue.StartLineOffset
result.End.Position.Should().Be(1602); // snapshot length
}