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namespace RobloxCS.Tests
{
    public class DebugTransformer_Should
    {
        private const string _testFileName = "TestFile.client.cs";

        [Theory]
        [InlineData("print(\"hello baby\")")]
        [InlineData("warn(\"hello baby\")")]
        public void FileInfo_PrependsArgument(string input)
        {
            var cleanTree = TranspilerUtility.ParseTree(input);
            var transformedTree = TranspilerUtility.TransformTree(cleanTree, [BuiltInTransformers.Main(), BuiltInTransformers.Get("Debug")]);
            var cleanRoot = cleanTree.GetRoot();
            var cleanInvocation = cleanRoot.DescendantNodes().OfType<InvocationExpressionSyntax>().First();
            var transformedRoot = transformedTree.GetRoot();
            var transformedInvocation = transformedRoot.DescendantNodes().OfType<InvocationExpressionSyntax>().First();
            var cleanArgs = cleanInvocation.ArgumentList.Arguments;
            var transformedArgs = transformedInvocation.ArgumentList.Arguments;
            var fileInfoArg = transformedArgs.FirstOrDefault();
            Assert.True(cleanArgs.Count == 1);
            Assert.True(transformedArgs.Count == 2);
            Assert.NotNull(fileInfoArg);

            var fileInfoLiteral = (LiteralExpressionSyntax)fileInfoArg.Expression;
            Assert.Equal($"[{_testFileName}:1:51]:", fileInfoLiteral.Token.ValueText);
        }

        [Theory]
        [InlineData("error(\"hello baby\")")]
        public void FileInfo_ConcatenatesLiteral(string input)
        {
            var cleanTree = TranspilerUtility.ParseTree(input);
            var transformedTree = TranspilerUtility.TransformTree(cleanTree, [BuiltInTransformers.Main(), BuiltInTransformers.Get("Debug")]);
            var cleanRoot = cleanTree.GetRoot();
            var cleanInvocation = cleanRoot.DescendantNodes().OfType<InvocationExpressionSyntax>().First();
            var transformedRoot = transformedTree.GetRoot();
            var transformedInvocation = transformedRoot.DescendantNodes().OfType<InvocationExpressionSyntax>().First();
            var cleanArgs = cleanInvocation.ArgumentList.Arguments;
            var transformedArgs = transformedInvocation.ArgumentList.Arguments;
            var fullMessageArg = transformedArgs.FirstOrDefault();
            Assert.True(cleanArgs.Count == 1);
            Assert.True(transformedArgs.Count == 1);
            Assert.NotNull(fullMessageArg);

            var fullMessageBinary= (BinaryExpressionSyntax)fullMessageArg.Expression;
            var fileInfoLiteral = (LiteralExpressionSyntax)fullMessageBinary.Left;
            Assert.Equal($"[{_testFileName}:1:51]: ", fileInfoLiteral.Token.ValueText);
        }
    }
}