VAR/VAR.ExpressionEvaluator
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Parser and ExpressionNodes operate with the 3 types (decimal, string, bool)

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Valeriano A.R.
2019-12-02 02:10:36 +01:00
parent 071a6d8d43
commit a49655ed1d
9 changed files with 216 additions and 17 deletions
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75
VAR.ExpressionEvaluator.Tests/ParserTests.cs
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@@ -1,4 +1,5 @@
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Linq;
namespace VAR.ExpressionEvaluator.Tests
@@ -152,8 +153,8 @@ namespace VAR.ExpressionEvaluator.Tests
public void Variables__Var1PlusVar2()
{
EvaluationContext evaluationContex = new EvaluationContext();
evaluationContex.SetVariable("v1", 1m);
evaluationContex.SetVariable("v2", 1m);
evaluationContex.SetVariable("v1", 1);
evaluationContex.SetVariable("v2", 1);
string expression = "v1 + v2";
object result = Parser.EvaluateString(expression, evaluationContex);
Assert.AreEqual(2m, result);
@@ -163,8 +164,8 @@ namespace VAR.ExpressionEvaluator.Tests
public void Variables__Var1MultiplyVar2()
{
EvaluationContext evaluationContex = new EvaluationContext();
evaluationContex.SetVariable("v1", 10m);
evaluationContex.SetVariable("v2", 5m);
evaluationContex.SetVariable("v1", 10);
evaluationContex.SetVariable("v2", 5);
string expression = "v1 * v2";
object result = Parser.EvaluateString(expression, evaluationContex);
Assert.AreEqual(50m, result);
@@ -189,5 +190,71 @@ namespace VAR.ExpressionEvaluator.Tests
#endregion Functions
#region Strings
[TestMethod()]
public void Strings__Contatenate_Hello_World()
{
string expression = "\"Hello\" + ' ' +\"World\"";
object result = Parser.EvaluateString(expression);
Assert.AreEqual("Hello World", result);
}
[TestMethod()]
public void Strings__Contatenate_Hello_World_WithVariables()
{
EvaluationContext evaluationContex = new EvaluationContext();
evaluationContex.SetVariable("v1", "Hello");
evaluationContex.SetVariable("v2", " ");
evaluationContex.SetVariable("v3", "World");
string expression = "v1 + v2 + v3";
object result = Parser.EvaluateString(expression, evaluationContex);
Assert.AreEqual("Hello World", result);
}
[TestMethod()]
public void Strings__Fail_Minus()
{
string expression = "'Hello' - 'World'";
try
{
object result = Parser.EvaluateString(expression);
Assert.Fail();
}
catch (Exception)
{
}
}
[TestMethod()]
public void Strings__Fail_Multiply()
{
string expression = "'Hello' * 'World'";
try
{
object result = Parser.EvaluateString(expression);
Assert.Fail();
}
catch (Exception)
{
}
}
[TestMethod()]
public void Strings__Fail_Division()
{
string expression = "'Hello' / 'World'";
try
{
object result = Parser.EvaluateString(expression);
Assert.Fail();
}
catch (Exception)
{
}
}
#endregion Strings
}
}