CanonSharp/CanonSharp.Tests/ParserTests/ProgramParserTests.cs

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using CanonSharp.Pascal.SyntaxTree;
using CanonSharp.Tests.Utils;
namespace CanonSharp.Tests.ParserTests;
public class ProgramParserTests : GrammarParserTestBase
{
[Fact]
public void ProgramParseTest1()
{
Program program = ProgramParse("""
program main;
begin
end.
""");
Assert.Equal("main", program.Head.ProgramName.LiteralValue);
Assert.Empty(program.Body.MainBlock.Statements);
}
[Fact]
public void ProgramParseTest2()
{
Program program = ProgramParse("""
program main;
begin
temp := 1 + 1;
end.
""");
Assert.Equal("main", program.Head.ProgramName.LiteralValue);
AssignNode assignNode = program.Body.MainBlock.Statements[0].Convert<AssignNode>();
Assert.Equal("temp", assignNode.Variable.IdentifierName);
BinaryOperatorNode binaryOperatorNode = assignNode.Expression.Convert<BinaryOperatorNode>();
Assert.Equal(BinaryOperatorType.Add, binaryOperatorNode.OperatorType);
Assert.Equal(1, binaryOperatorNode.Left.Convert<IntegerValueNode>().Value);
Assert.Equal(1, binaryOperatorNode.Right.Convert<IntegerValueNode>().Value);
}
}