public void TryMergeWithReturnsFalseWhenMergingRightIntoLeftIfSpansNotAdjacent()
{
// Arrange
Span left = new CodeSpan(new SourceLocation(100, 0, 0), "Foo");
Span right = new CodeSpan(SourceLocation.Zero, "Bar");
// Act/Assert
Assert.IsFalse(left.TryMergeWith(right));
}
public void TryMergeWithReturnsTrueAndCorrectlyMergesWhenMergingRightIntoLeftIfSpansAreAdjacent()
{
// Arrange
Span left = new CodeSpan(new SourceLocation(3, 0, 0), "Foo");
Span right = new CodeSpan(SourceLocation.Zero, "Bar");
// Act
bool success = left.TryMergeWith(right);
// Assert
Assert.IsTrue(success);
Assert.AreEqual("BarFoo", left.Content);
Assert.AreEqual(SourceLocation.Zero, left.Start);
}
public void TryMergeWithLeavesTypeVisibilityAndTrackingModeUnchanged()
{
// Arrange
Span left = new CodeSpan(SourceLocation.Zero, "Foo", hidden: true, acceptedCharacters: AcceptedCharacters.None);
Span right = new MetaCodeSpan(new SourceLocation(3, 0, 0), "Bar");
// Act
bool success = left.TryMergeWith(right);
// Assert
Assert.IsTrue(success);
Assert.AreEqual(SpanKind.Code, left.Kind);
Assert.IsTrue(left.Hidden);
}