public void EvaluateExpressions_NullExpressions()
{
var handler = new CalcEngineRequestHandler();
Assert.That(() => handler.EvaluateExpressions(new EntityType(), null),
Throws.TypeOf <ArgumentNullException>().And.Property("ParamName").EqualTo("expressions"));
}
public void EvaluateExpressions_EvalSingleExpression()
{
var handler = new CalcEngineRequestHandler();
var entity = new EntityType
{
Name = Guid.NewGuid().ToString(),
Description = Guid.NewGuid().ToString()
};
var expressions = new Dictionary <string, CalcEngineExpression>
{
{
"GetName",
new CalcEngineExpression
{
ExpectedResultType = new ExpressionType
{
DataType = DataType.String
},
Expression = "[Name]"
}
}
};
var results = handler.EvaluateExpressions(entity, expressions);
Assert.IsNotNull(results);
Assert.AreEqual(1, results.Results.Count);
Assert.IsTrue(results.Results.ContainsKey("GetName"));
Assert.AreEqual(entity.Name, results.Results["GetName"].Value);
Assert.AreEqual(DataType.String, results.Results["GetName"].ResultType);
}
public void EvaluateExpressions_EvalMultipleExpressionsWithFailures()
{
var handler = new CalcEngineRequestHandler();
var entity = new EntityType
{
Name = Guid.NewGuid().ToString(),
Description = Guid.NewGuid().ToString()
};
var expressions = new Dictionary <string, CalcEngineExpression>
{
{
"GetName",
new CalcEngineExpression
{
ExpectedResultType = new ExpressionType
{
DataType = DataType.String
},
Expression = "XXXXXX!!!"
}
},
{
"GetDescription",
new CalcEngineExpression
{
ExpectedResultType = new ExpressionType
{
DataType = DataType.String
},
Expression = "[Description]"
}
}
};
var results = handler.EvaluateExpressions(entity, expressions);
Assert.IsNotNull(results);
Assert.AreEqual(2, results.Results.Count);
Assert.IsTrue(results.Results.ContainsKey("GetName"));
Assert.IsFalse(string.IsNullOrWhiteSpace(results.Results["GetName"].ErrorMessage));
Assert.IsTrue(string.IsNullOrWhiteSpace(results.Results["GetName"].Value));
Assert.IsTrue(results.Results.ContainsKey("GetDescription"));
Assert.IsTrue(string.IsNullOrWhiteSpace(results.Results["GetDescription"].ErrorMessage));
Assert.AreEqual(entity.Description, results.Results["GetDescription"].Value);
Assert.AreEqual(DataType.String, results.Results["GetDescription"].ResultType);
}