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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
using System;
using System.IO;
using ICSharpCode.NRefactory.VB.Parser;
using NUnit.Framework;
namespace ICSharpCode.NRefactory.VB.Tests.Lexer
{
[TestFixture]
public sealed class LiteralsTests
{
VBLexer GenerateLexer(StringReader sr)
{
return new VBLexer(sr);
}
Token GetSingleToken(string text)
{
VBLexer lexer = GenerateLexer(new StringReader(text));
Token t = lexer.NextToken();
Assert.AreEqual(Tokens.EOL, lexer.NextToken().Kind, "Tokens.EOL");
Assert.AreEqual(Tokens.EOF, lexer.NextToken().Kind, "Tokens.EOF");
Assert.AreEqual("", lexer.Errors.ErrorOutput);
return t;
}
void CheckToken(string text, int tokenType, object val)
{
Token t = GetSingleToken(text);
Assert.AreEqual(tokenType, t.Kind, "Tokens.Literal");
Assert.IsNotNull(t.LiteralValue, "literalValue is null");
Assert.AreEqual(val.GetType(), t.LiteralValue.GetType(), "literalValue.GetType()");
Assert.AreEqual(val, t.LiteralValue, "literalValue");
}
[Test]
public void TestSingleDigit()
{
CheckToken("5", Tokens.LiteralInteger, 5);
}
[Test]
public void TestZero()
{
CheckToken("0", Tokens.LiteralInteger, 0);
}
[Test]
public void TestInteger()
{
CheckToken("15", Tokens.LiteralInteger, 15);
CheckToken("8581", Tokens.LiteralInteger, 8581);
}
[Test]
public void InvalidTypeCharacter()
{
// just check that we don't get exceptions:
GenerateLexer(new StringReader(".5s")).NextToken();
GenerateLexer(new StringReader(".5ul")).NextToken();
}
[Test]
public void TestHexadecimalInteger()
{
CheckToken("&H10", Tokens.LiteralInteger, 0x10);
CheckToken("&H10&", Tokens.LiteralInteger, (long)0x10);
CheckToken("&h3ff%", Tokens.LiteralInteger, 0x3ff);
CheckToken("&h8000s", Tokens.LiteralInteger, short.MinValue);
CheckToken("&h8000us", Tokens.LiteralInteger, (ushort)0x8000);
CheckToken("&HffffFFFF", Tokens.LiteralInteger, -1);
CheckToken("&HffffFFFF%", Tokens.LiteralInteger, -1);
CheckToken("&HffffFFFFui", Tokens.LiteralInteger, uint.MaxValue);
CheckToken("&HffffFFFF&", Tokens.LiteralInteger, (long)uint.MaxValue);
}
[Test]
public void TestLongHexadecimalInteger()
{
CheckToken("&H4244636f446c6d58", Tokens.LiteralInteger, 0x4244636f446c6d58);
CheckToken("&hf244636f446c6d58", Tokens.LiteralInteger, -989556688574190248);
CheckToken("&hf244636f446c6d58&", Tokens.LiteralInteger, -989556688574190248);
CheckToken("&hf244636f446c6d58ul", Tokens.LiteralInteger, 0xf244636f446c6d58);
}
[Test]
public void InvalidHexadecimalInteger()
{
// just check that we don't get exceptions:
GenerateLexer(new StringReader("&H")).NextToken();
// >ulong.MaxValue
GenerateLexer(new StringReader("&hff244636f446c6d58")).NextToken();
// needs an ulong, but "i" postfix specified integer
GenerateLexer(new StringReader("&hf244636f446c6d58i")).NextToken();
GenerateLexer(new StringReader("&hf244636f446c6d58ui")).NextToken();
}
[Test]
public void TestIncompleteHexadecimal()
{
VBLexer lexer = GenerateLexer(new StringReader("&H\r\nabc"));
Token t = lexer.NextToken();
Assert.AreEqual(Tokens.LiteralInteger, t.Kind);
Assert.AreEqual(0, (int)t.LiteralValue);
Assert.AreEqual(Tokens.EOL, lexer.NextToken().Kind, "Tokens.EOL (1)");
Assert.AreEqual(Tokens.Identifier, lexer.NextToken().Kind, "Tokens.Identifier");
Assert.AreEqual(Tokens.EOL, lexer.NextToken().Kind, "Tokens.EOL (2)");
Assert.AreEqual(Tokens.EOF, lexer.NextToken().Kind, "Tokens.EOF");
Assert.AreNotEqual("", lexer.Errors.ErrorOutput);
}
[Test]
public void TestStringLiterals()
{
CheckToken("\"\"", Tokens.LiteralString, "");
CheckToken("\"Hello, World!\"", Tokens.LiteralString, "Hello, World!");
CheckToken("\"\"\"\"", Tokens.LiteralString, "\"");
}
[Test]
public void TestCharacterLiterals()
{
CheckToken("\" \"c", Tokens.LiteralCharacter, ' ');
CheckToken("\"!\"c", Tokens.LiteralCharacter, '!');
CheckToken("\"\"\"\"c", Tokens.LiteralCharacter, '"');
}
[Test]
public void TestDateLiterals()
{
CheckToken("# 8/23/1970 #", Tokens.LiteralDate, new DateTime(1970, 8, 23, 0, 0, 0));
CheckToken("#8/23/1970#", Tokens.LiteralDate, new DateTime(1970, 8, 23, 0, 0, 0));
CheckToken("# 8/23/1970 3:45:39AM #", Tokens.LiteralDate, new DateTime(1970, 8, 23, 3, 45, 39));
CheckToken("# 3:45:39AM #", Tokens.LiteralDate, new DateTime(1, 1, 1, 3, 45, 39));
CheckToken("# 3:45:39 PM #", Tokens.LiteralDate, new DateTime(1, 1, 1, 15, 45, 39));
CheckToken("# 3:45:39 #", Tokens.LiteralDate, new DateTime(1, 1, 1, 3, 45, 39));
CheckToken("# 13:45:39 #", Tokens.LiteralDate, new DateTime(1, 1, 1, 13, 45, 39));
CheckToken("# 1AM #", Tokens.LiteralDate, new DateTime(1, 1, 1, 1, 0, 0));
}
[Test]
public void TestDouble()
{
CheckToken("1.0", Tokens.LiteralDouble, 1.0);
CheckToken("1.1", Tokens.LiteralDouble, 1.1);
CheckToken("2e-5", Tokens.LiteralDouble, 2e-5);
CheckToken("2.0e-5", Tokens.LiteralDouble, 2e-5);
CheckToken("2e5", Tokens.LiteralDouble, 2e5);
CheckToken("2.2e5", Tokens.LiteralDouble, 2.2e5);
CheckToken("2e+5", Tokens.LiteralDouble, 2e5);
CheckToken("2.2e+5", Tokens.LiteralDouble, 2.2e5);
CheckToken("1r", Tokens.LiteralDouble, 1.0);
CheckToken("1.0r", Tokens.LiteralDouble, 1.0);
CheckToken("1.1r", Tokens.LiteralDouble, 1.1);
CheckToken("2e-5r", Tokens.LiteralDouble, 2e-5);
CheckToken("2.0e-5r", Tokens.LiteralDouble, 2e-5);
CheckToken("2e5r", Tokens.LiteralDouble, 2e5);
CheckToken("2.2e5r", Tokens.LiteralDouble, 2.2e5);
CheckToken("2e+5r", Tokens.LiteralDouble, 2e5);
CheckToken("2.2e+5r", Tokens.LiteralDouble, 2.2e5);
}
[Test]
public void TestSingle()
{
CheckToken("1f", Tokens.LiteralSingle, 1.0f);
CheckToken("1.0f", Tokens.LiteralSingle, 1.0f);
CheckToken("1.1f", Tokens.LiteralSingle, 1.1f);
CheckToken("2e-5f", Tokens.LiteralSingle, 2e-5f);
CheckToken("2.0e-5f", Tokens.LiteralSingle, 2e-5f);
CheckToken("2e5f", Tokens.LiteralSingle, 2e5f);
CheckToken("2.2e5f", Tokens.LiteralSingle, 2.2e5f);
CheckToken("2e+5f", Tokens.LiteralSingle, 2e5f);
CheckToken("2.2e+5f", Tokens.LiteralSingle, 2.2e5f);
}
[Test]
public void TestDecimal()
{
CheckToken("1d", Tokens.LiteralDecimal, 1m);
CheckToken("1.0d", Tokens.LiteralDecimal, 1.0m);
CheckToken("1.1d", Tokens.LiteralDecimal, 1.1m);
CheckToken("2e-5d", Tokens.LiteralDecimal, 2e-5m);
CheckToken("2.0e-5d", Tokens.LiteralDecimal, 2.0e-5m);
CheckToken("2e5d", Tokens.LiteralDecimal, 2e5m);
CheckToken("2.2e5d", Tokens.LiteralDecimal, 2.2e5m);
CheckToken("2e+5d", Tokens.LiteralDecimal, 2e5m);
CheckToken("2.2e+5d", Tokens.LiteralDecimal, 2.2e5m);
}
}
}
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