public void TestCanAccessNonExistentProperty()
{
var propertyAccessor = LightupHelpers.CreateSyntaxPropertyAccessor <SyntaxNode, object>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(propertyAccessor);
Assert.Null(propertyAccessor(SyntaxFactory.AccessorList()));
Assert.Throws <NullReferenceException>(() => propertyAccessor(null));
var withPropertyAccessor = LightupHelpers.CreateSyntaxWithPropertyAccessor <SyntaxNode, object>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(withPropertyAccessor);
Assert.NotNull(withPropertyAccessor(SyntaxFactory.AccessorList(), null));
Assert.ThrowsAny <NotSupportedException>(() => withPropertyAccessor(SyntaxFactory.AccessorList(), new object()));
Assert.Throws <NullReferenceException>(() => withPropertyAccessor(null, new object()));
var separatedListPropertyAccessor = LightupHelpers.CreateSeparatedSyntaxListPropertyAccessor <SyntaxNode, SyntaxNode>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(separatedListPropertyAccessor);
Assert.NotNull(separatedListPropertyAccessor(SyntaxFactory.AccessorList()));
Assert.Throws <NullReferenceException>(() => separatedListPropertyAccessor(null));
var separatedListWithPropertyAccessor = LightupHelpers.CreateSeparatedSyntaxListWithPropertyAccessor <SyntaxNode, SyntaxNode>(typeof(SyntaxNode), "NonExistentProperty");
Assert.NotNull(separatedListWithPropertyAccessor);
Assert.NotNull(separatedListWithPropertyAccessor(SyntaxFactory.AccessorList(), null));
Assert.ThrowsAny <NotSupportedException>(() => separatedListWithPropertyAccessor(SyntaxFactory.AccessorList(), new SeparatedSyntaxListWrapper <SyntaxNode> .AutoWrapSeparatedSyntaxList <LiteralExpressionSyntax>(SyntaxFactory.SingletonSeparatedList(SyntaxFactory.LiteralExpression(SyntaxKind.NullLiteralExpression)))));
Assert.Throws <NullReferenceException>(() => separatedListWithPropertyAccessor(null, SeparatedSyntaxListWrapper <SyntaxNode> .UnsupportedEmpty));
}
public void TestCreateSyntaxPropertyAccessor()
{
// The call *should* have been made with the first generic argument set to `BaseMethodDeclarationSyntax`
// instead of `MethodDeclarationSyntax`.
Assert.ThrowsAny <InvalidOperationException>(() => LightupHelpers.CreateSyntaxPropertyAccessor <MethodDeclarationSyntax, BlockSyntax>(typeof(BaseMethodDeclarationSyntax), nameof(BaseMethodDeclarationSyntax.Body)));
// The call *should* have been made with the second generic argument set to `ArrowExpressionClauseSyntax`
// instead of `BlockSyntax`.
Assert.ThrowsAny <InvalidOperationException>(() => LightupHelpers.CreateSyntaxPropertyAccessor <MethodDeclarationSyntax, BlockSyntax>(typeof(MethodDeclarationSyntax), nameof(MethodDeclarationSyntax.ExpressionBody)));
}
public void TestCanAccessNonExistentSyntaxProperty(Type type)
{
var fallbackResult = new object();
var propertyAccessor = LightupHelpers.CreateSyntaxPropertyAccessor <SyntaxNode, object>(type, "NonExistentProperty", fallbackResult);
Assert.NotNull(propertyAccessor);
Assert.Same(fallbackResult, propertyAccessor(SyntaxFactory.AccessorList()));
Assert.Throws <NullReferenceException>(() => propertyAccessor(null !));
var withPropertyAccessor = LightupHelpers.CreateSyntaxWithPropertyAccessor <SyntaxNode, object>(type, "NonExistentProperty", fallbackResult);
Assert.NotNull(withPropertyAccessor);
Assert.NotNull(withPropertyAccessor(SyntaxFactory.AccessorList(), fallbackResult));
Assert.ThrowsAny <NotSupportedException>(() => withPropertyAccessor(SyntaxFactory.AccessorList(), new object()));
Assert.Throws <NullReferenceException>(() => withPropertyAccessor(null !, new object()));
}