public void HasUsingDirective_ForCompilationUnit_DoesNotThrowIfUsingDirectiveFound()
{
// Arrange
string code = GetEmbedContent("SingleUsingDirective");
var compilationUnit = SyntaxFactory.ParseCompilationUnit(code);
// Act
// Assert
UsingDirectiveExtensions.HasUsingDirective(compilationUnit, "System");
}
public void HasUsingDirective_ForCompilationUnit_ThrowsIfUsingDirectiveNotFound()
{
// Arrange
string code = GetEmbedContent("SingleUsingDirective");
var compilationUnit = SyntaxFactory.ParseCompilationUnit(code);
// Act
// Assert
Assert.Throws <SyntaxAssertionException>(() => UsingDirectiveExtensions.HasUsingDirective(compilationUnit, "System.Collections"));
}
public void GetMatchingUsingDirectives_ReturnsMatch()
{
// Arrange
string code = GetEmbedContent("SingleUsingDirective");
var compilationUnit = SyntaxFactory.ParseCompilationUnit(code);
// Act
var matches = UsingDirectiveExtensions.GetMatchingUsingDirectives(compilationUnit.Usings, "System").ToList();
// Assert
Assert.NotNull(matches);
Assert.Equal(1, matches.Count);
Assert.NotNull(matches[0]);
Assert.Equal(0, matches[0].Index);
}
public void HasUsingDirective_ForCompilationUnit_PassesFirstMatchToAssertDelegate()
{
// Arrange
string code = GetEmbedContent("SingleUsingDirective");
var compilationUnit = SyntaxFactory.ParseCompilationUnit(code);
// Act
// Assert
UsingDirectiveExtensions.HasUsingDirective(compilationUnit, "System",
assert: m =>
{
Assert.NotNull(m);
Assert.Equal(0, m.Index);
});
}
public void GetMatchingUsingDirectives_ChainsMatches()
{
// Arrange
string code = GetEmbedContent("MultipleUsingDirectives");
var compilationUnit = SyntaxFactory.ParseCompilationUnit(code);
// Act
var matches = UsingDirectiveExtensions.GetMatchingUsingDirectives(compilationUnit.Usings, "System").ToList();
// Assert
Assert.NotNull(matches);
Assert.Equal(2, matches.Count);
Assert.NotNull(matches[0]);
Assert.Equal(0, matches[0].Index);
Assert.NotNull(matches[0].Next);
Assert.Equal(matches[0].Next, matches[1]);
Assert.NotNull(matches[1].Previous);
Assert.Equal(matches[0], matches[1].Previous);
}