public void One_Plus_One_Is_Two()
{
string input = "1 + 1";
var TextTokens = TextTokenizer.TextTokenize(input);
Parser parsers = new Parser(TextTokens);
var AST = parsers.ParseExpression();
global::BRE.ExecutionContext context = new global::BRE.ExecutionContext();
ExecutionEngine executionEngine = new ExecutionEngine(context);
executionEngine.ExecuteExpression(AST);
Assert.Equal(2.0, (double)AST.EvaluatedValue.Value);
}
public void One_Plus_Two_Is_Greater_Than_Two()
{
string input = "1 + 2 > 2";
var TextTokens = TextTokenizer.TextTokenize(input);
Parser parsers = new Parser(TextTokens);
var AST = parsers.ParseExpression();
global::BRE.ExecutionContext context = new global::BRE.ExecutionContext();
ExecutionEngine executionEngine = new ExecutionEngine(context);
executionEngine.ExecuteExpression(AST);
Assert.Equal(ValueType.Logical, AST.EvaluatedValue.Type);
Assert.Equal(true, (bool)AST.EvaluatedValue.Value);
}
public void Variable_Can_Be_Found_From_Context()
{
string input = "Word";
var TextTokens = TextTokenizer.TextTokenize(input);
Parser parsers = new Parser(TextTokens);
var AST = parsers.ParseExpression();
global::BRE.ExecutionContext context = new global::BRE.ExecutionContext();
context.AddVariableValue("word", 2.313);
ExecutionEngine executionEngine = new ExecutionEngine(context);
executionEngine.ExecuteExpression(AST);
Assert.Equal(ValueType.Number, AST.EvaluatedValue.Type);
Assert.Equal(2.313, (double)AST.EvaluatedValue.Value);
}
