public void TestStatementParser_InvalidNumber()
{
const string line = "glob glob Silver is 3a Credits";
Context context = new Context();
context.RomanMapping["glob"] = RomanPrimitive.Parse('I');
new StatementParser().Parse(line, context);
}
public void TestRoman_NotDefined()
{
const string line = "pish tegj glob glob";
Dictionary <string, RomanPrimitive> romanMapping = new Dictionary <string, RomanPrimitive>
{
{ "pish", RomanPrimitive.Parse('X') },
{ "tegj", RomanPrimitive.Parse('L') }
};
Roman.Parse(line, romanMapping);
}
public void TestRomanPrimitive()
{
RomanPrimitive primitive = RomanPrimitive.Parse('I');
Assert.IsNotNull(primitive);
Assert.AreEqual("I", primitive.Symbol);
Assert.AreEqual(1, primitive.Value);
Assert.IsTrue(primitive.AllowRepeat);
Assert.IsTrue(primitive.AllowSubtract);
Assert.AreEqual("VX", primitive.SubtractFrom);
}
public void TestRoman()
{
const string line = "pish tegj glob glob";
Dictionary <string, RomanPrimitive> romanMapping = new Dictionary <string, RomanPrimitive>
{
{ "glob", RomanPrimitive.Parse('I') },
{ "pish", RomanPrimitive.Parse('X') },
{ "tegj", RomanPrimitive.Parse('L') }
};
Assert.AreEqual(42, Roman.Parse(line, romanMapping));
}
public void TestStatementSolver_ItemNotFound()
{
const string question = "how many Credits is glob prok Silver ";
string answer;
Context context = new Context
{
RomanMapping = new Dictionary <string, RomanPrimitive>
{
{ "glob", RomanPrimitive.Parse('I') },
{ "prok", RomanPrimitive.Parse('V') }
}
};
new StatementSolver().Solve(question, context, out answer);
}
public void TestStatementParser()
{
const string line = "glob glob Silver is 34 Credits";
Context context = new Context();
context.RomanMapping["glob"] = RomanPrimitive.Parse('I');
Assert.IsFalse(new DefinitionParser().Parse(line, context));
Assert.IsFalse(new QuestionParser().Parse(line, context));
Assert.IsTrue(new StatementParser().Parse(line, context));
Assert.AreEqual(1, context.ItemPrice.Count);
Assert.AreEqual(17m, context.ItemPrice["Silver"]);
}
public void TestDefinitionSolver()
{
const string question = "how much is pish tegj glob glob ";
string answer;
Context context = new Context
{
RomanMapping = new Dictionary <string, RomanPrimitive>
{
{ "glob", RomanPrimitive.Parse('I') },
{ "pish", RomanPrimitive.Parse('X') },
{ "tegj", RomanPrimitive.Parse('L') }
}
};
Assert.IsFalse(new StatementSolver().Solve(question, context, out answer));
Assert.IsNull(answer);
const string expected = "pish tegj glob glob is 42";
Assert.IsTrue(new DefinitionSolver().Solve(question, context, out answer));
Assert.AreEqual(expected, answer);
}
public override bool Parse(string input)
{
string[] lexers = input.Split(new[] { " is " }, StringSplitOptions.RemoveEmptyEntries);
if (lexers.Count() != 2)
{
return(false);
}
if (lexers[1].Length > 1)
{
return(false);
}
RomanPrimitive roman = RomanPrimitive.Parse(lexers[1][0]);
if (roman == null)
{
throw new Exception("syntex error.");
}
string name = lexers[0].Trim();
Context.Primitives[name] = roman;
return(true);
}
public void TestStatementSolver()
{
const string question = "how many Credits is glob prok Silver ";
string answer;
Context context = new Context
{
RomanMapping = new Dictionary <string, RomanPrimitive>
{
{ "glob", RomanPrimitive.Parse('I') },
{ "prok", RomanPrimitive.Parse('V') }
}
};
context.ItemPrice["Silver"] = 17m;
Assert.IsFalse(new DefinitionSolver().Solve(question, context, out answer));
Assert.IsNull(answer);
const string expected = "glob prok Silver is 68 Credits";
Assert.IsTrue(new StatementSolver().Solve(question, context, out answer));
Assert.AreEqual(expected, answer);
}
// Format: [Name] is [Primitive]
public bool Parse(string line, Context context)
{
if (line.EndsWith(Constants.QuestionMark))
{
return(false);
}
string[] fields = line.Split(new[] { Constants.ParserDelimiter }, StringSplitOptions.RemoveEmptyEntries);
if (fields.Length != 2)
{
return(false);
}
string right = fields[1].Trim();
if (right.Length != 1)
{
return(false);
}
string[] left = fields[0].Split(new[] { Constants.Space }, StringSplitOptions.RemoveEmptyEntries);
if (left.Length != 1)
{
return(false);
}
RomanPrimitive primitive = RomanPrimitive.Parse(right[0]);
if (primitive == null)
{
throw new ArgumentException(Constants.InvalidRomanPrimitive, right);
}
context.RomanMapping[left[0]] = primitive;
return(true);
}
public void TestRomanPrimitive_NotFound()
{
RomanPrimitive primitive = RomanPrimitive.Parse('A');
Assert.IsNull(primitive);
}