private void TestReferenceTypeVariables()
{
ExpressionContext context = new ExpressionContext();
VariableCollection variables = context.Variables;
variables.Add("a", "string");
variables.Add("b", 100);
var e = new DynamicExpression <string>("a + b + a.tostring()", ExpressionLanguage.Flee);
string result = e.Invoke(context);
Assert.AreEqual("string" + 100 + "string", result);
variables["a"].Value = "test";
variables["b"].Value = 1;
result = e.Invoke(context);
Assert.AreEqual("test" + 1 + "test", result);
// Test null value
variables.Add("nullvar", null);
var e2 = new DynamicExpression <bool>("nullvar = null", ExpressionLanguage.Flee);
Assert.IsTrue(e2.Invoke(context));
}
public void TestReferenceTypeVariables()
{
var context = new ExpressionContext();
var variables = context.Variables;
variables.Add("a", "string");
variables.Add("b", "100");
var e = new DynamicExpression <string>("a + b + a.tostring()", ExpressionLanguage.Flee);
var result = e.Invoke(context);
Assert.Equal("string" + 100 + "string", result);
variables["a"].Value = "test";
variables["b"].Value = "1";
result = e.Invoke(context);
Assert.Equal("test" + 1 + "test", result);
// Test null value
variables.Add("nullvar", null);
var e2 = new DynamicExpression <bool>("nullvar = null", ExpressionLanguage.Flee);
Assert.True(e2.Invoke(context));
}
private void TestValueTypeVariables()
{
ExpressionContext context = new ExpressionContext();
VariableCollection variables = context.Variables;
variables.Add("a", 100);
variables.Add("b", -100);
variables.Add("c", DateTime.Now);
var e1 = new DynamicExpression <int>("a+b", ExpressionLanguage.Flee);
int result = e1.Invoke(context);
Assert.AreEqual(100 + -100, result);
variables["B"].Value = 1000;
result = e1.Invoke(context);
Assert.AreEqual(100 + 1000, result);
var e2 = new DynamicExpression <string>("c.tolongdatestring() + c.Year.tostring()", ExpressionLanguage.Flee);
Assert.AreEqual(DateTime.Now.ToLongDateString() + DateTime.Now.Year, e2.Invoke(context));
// Test null value
//variables["a"].Value = null;
//e1 = new DynamicExpression<int>("a", ExpressionLanguage.Flee);
//Assert.AreEqual(0, e1.Invoke(context));
}
public void TestGenericEvaluate()
{
ExpressionContext context = default(ExpressionContext);
context = new ExpressionContext();
var e1 = new DynamicExpression <int>("1000", ExpressionLanguage.Flee);
Assert.AreEqual(1000, e1.Invoke(context));
var e2 = new DynamicExpression <double>("1000.25", ExpressionLanguage.Flee);
Assert.AreEqual(1000.25, e2.Invoke(context));
var e3 = new DynamicExpression <double>("1000", ExpressionLanguage.Flee);
Assert.AreEqual(1000.0, e3.Invoke(context));
var e4 = new DynamicExpression <ValueType>("1000", ExpressionLanguage.Flee);
ValueType vt = e4.Invoke(context);
Assert.AreEqual(1000, vt);
var e5 = new DynamicExpression <object>("1000 + 2.5", ExpressionLanguage.Flee);
object o = e5.Invoke(context);
Assert.AreEqual(1000 + 2.5, o);
}
public void TestValueTypeOwner()
{
TestStruct owner = new TestStruct(100);
ExpressionContext context = this.CreateGenericContext(owner);
var options = new BoundExpressionOptions
{
AllowPrivateAccess = true
};
var e = new DynamicExpression <int>("mya.compareto(100)", ExpressionLanguage.Flee);
int result = e.Invoke(context, options);
Assert.AreEqual(0, result);
e = new DynamicExpression <int>("myA", ExpressionLanguage.Flee);
result = e.Invoke(context, options);
Assert.AreEqual(100, result);
e = new DynamicExpression <int>("DoStuff()", ExpressionLanguage.Flee);
result = e.Invoke(context);
Assert.AreEqual(100, result);
DateTime dt = DateTime.Now;
context = this.CreateGenericContext(dt);
e = new DynamicExpression <int>("Month", ExpressionLanguage.Flee);
result = e.Invoke(context);
Assert.AreEqual(dt.Month, result);
var e2 = new DynamicExpression <string>("tolongdatestring()", ExpressionLanguage.Flee);
Assert.AreEqual(dt.ToLongDateString(), e2.Invoke(context));
}
public void TestExpressionVariables()
{
ExpressionContext context1 = new ExpressionContext();
context1.Imports.Add(new Import(typeof(Math)));
var exp1 = new DynamicExpression("sin(pi)", ExpressionLanguage.Flee);
var boundExp1 = exp1.Bind(context1);
ExpressionContext context2 = new ExpressionContext();
context2.Imports.Add(new Import(typeof(Math)));
var exp2 = new DynamicExpression<double>("cos(pi/2)", ExpressionLanguage.Flee);
var boundExp2 = exp2.Bind(context2);
ExpressionContext context3 = new ExpressionContext();
context3.Variables.Add("a", boundExp1);
context3.Variables.Add("b", boundExp2);
var exp3 = new DynamicExpression("cast(a, double) + b", ExpressionLanguage.Flee);
double a = Math.Sin(Math.PI);
double b = Math.Cos(Math.PI / 2);
Assert.AreEqual(a + b, exp3.Invoke(context3));
ExpressionContext context4 = new ExpressionContext();
context4.Variables.Add("a", boundExp1);
context4.Variables.Add("b", boundExp2);
var exp4 = new DynamicExpression<double>("(cast(a, double) * b) + (b - cast(a, double))", ExpressionLanguage.Flee);
Assert.AreEqual((a * b) + (b - a), exp4.Invoke(context4));
}
public void TestLongBranchLogical1()
{
string expressionText = this.GetIndividualTest("LongBranch1");
ExpressionContext context = new ExpressionContext();
VariableCollection vc = context.Variables;
vc.Add("M0100_ASSMT_REASON", "0");
vc.Add("M0220_PRIOR_NOCHG_14D", "1");
vc.Add("M0220_PRIOR_UNKNOWN", "1");
vc.Add("M0220_PRIOR_UR_INCON", "1");
vc.Add("M0220_PRIOR_CATH", "1");
vc.Add("M0220_PRIOR_INTRACT_PAIN", "1");
vc.Add("M0220_PRIOR_IMPR_DECSN", "1");
vc.Add("M0220_PRIOR_DISRUPTIVE", "1");
vc.Add("M0220_PRIOR_MEM_LOSS", "1");
vc.Add("M0220_PRIOR_NONE", "1");
vc.Add("M0220_PRIOR_UR_INCON_bool", true);
vc.Add("M0220_PRIOR_CATH_bool", true);
vc.Add("M0220_PRIOR_INTRACT_PAIN_bool", true);
vc.Add("M0220_PRIOR_IMPR_DECSN_bool", true);
vc.Add("M0220_PRIOR_DISRUPTIVE_bool", true);
vc.Add("M0220_PRIOR_MEM_LOSS_bool", true);
vc.Add("M0220_PRIOR_NONE_bool", true);
vc.Add("M0220_PRIOR_NOCHG_14D_bool", true);
vc.Add("M0220_PRIOR_UNKNOWN_bool", true);
var e = new DynamicExpression(expressionText, ExpressionLanguage.Flee);
// We only care that the expression is valid and can be evaluated
object result = e.Invoke(context);
}
public void TestImports()
{
ExpressionContext context;
context = new ExpressionContext();
// Import math type directly
context.Imports.Add(new Import(typeof(Math)));
// Should be able to see PI without qualification
var e = new DynamicExpression <double>("pi", ExpressionLanguage.Flee);
Assert.AreEqual(Math.PI, e.Invoke(context));
context = new ExpressionContext(null, MyValidExpressionsOwner);
// Import math type with prefix
context.Imports.Add(new Import("math", typeof(Math)));
// Should be able to see pi by qualifying with Math
e = new DynamicExpression <double>("math.pi", ExpressionLanguage.Flee);
Assert.AreEqual(Math.PI, e.Invoke(context));
// Import nothing
context = new ExpressionContext();
// Should not be able to see PI
this.AssertCompileException("pi");
this.AssertCompileException("math.pi");
// Test importing of builtin types
new DynamicExpression <double>("double.maxvalue", ExpressionLanguage.Flee).Bind(null);
new DynamicExpression <string>("string.concat(\"a\", \"b\")", ExpressionLanguage.Flee).Bind(null);
new DynamicExpression <long>("long.maxvalue * 2", ExpressionLanguage.Flee).Bind(null);
}
private void DoTestCheckedExpressions(string[] arr)
{
string expression = arr[0];
bool @checked = bool.Parse(arr[1]);
bool shouldOverflow = bool.Parse(arr[2]);
var imports = new[]
{
new Import(typeof(Math))
};
try
{
var e = new DynamicExpression(expression, Language);
e.Invoke(
new ExpressionContext(imports, MyValidExpressionsOwner),
new BoundExpressionOptions {
Checked = @checked
}
);
Assert.False(shouldOverflow);
}
catch (OverflowException)
{
Assert.True(shouldOverflow);
}
}
public void TestExpressionVariables()
{
ExpressionContext context1 = new ExpressionContext();
context1.Imports.Add(new Import(typeof(Math)));
var exp1 = new DynamicExpression("sin(pi)", ExpressionLanguage.Flee);
var boundExp1 = exp1.Bind(context1);
ExpressionContext context2 = new ExpressionContext();
context2.Imports.Add(new Import(typeof(Math)));
var exp2 = new DynamicExpression <double>("cos(pi/2)", ExpressionLanguage.Flee);
var boundExp2 = exp2.Bind(context2);
ExpressionContext context3 = new ExpressionContext();
context3.Variables.Add("a", boundExp1);
context3.Variables.Add("b", boundExp2);
var exp3 = new DynamicExpression("cast(a, double) + b", ExpressionLanguage.Flee);
double a = Math.Sin(Math.PI);
double b = Math.Cos(Math.PI / 2);
Assert.AreEqual(a + b, exp3.Invoke(context3));
ExpressionContext context4 = new ExpressionContext();
context4.Variables.Add("a", boundExp1);
context4.Variables.Add("b", boundExp2);
var exp4 = new DynamicExpression <double>("(cast(a, double) * b) + (b - cast(a, double))", ExpressionLanguage.Flee);
Assert.AreEqual((a * b) + (b - a), exp4.Invoke(context4));
}
public void TestStringNewlineEscape()
{
var e = new DynamicExpression <string>("\"a\\r\\nb\"", ExpressionLanguage.Flee);
string s = e.Invoke();
string expected = string.Format("a{0}b", ControlChars.CrLf);
Assert.AreEqual(expected, s);
}
protected void DoTest(DynamicExpression expression, ExpressionContext expressionContext, string result, Type resultType, CultureInfo testCulture)
{
if (ReferenceEquals(resultType, typeof(object)))
{
Type expectedType = Type.GetType(result, false, true);
if (expectedType == null)
{
// Try to get the type from the Tests assembly
result = string.Format("{0}.{1}", typeof(ExpressionTests).Namespace, result);
expectedType = this.GetType().Assembly.GetType(result, true, true);
}
object expressionResult = expression.Invoke(expressionContext, new BoundExpressionOptions
{
AllowPrivateAccess = true,
ResultType = resultType
});
if (object.ReferenceEquals(expectedType, typeof(void)))
{
Assert.NotNull(expressionResult);
}
else
{
Assert.IsType(expectedType, expressionResult);
}
}
else
{
TypeConverter tc = TypeDescriptor.GetConverter(resultType);
object expectedResult = tc.ConvertFromString(null, CultureInfo.CurrentCulture, result);
object actualResult = expression.Invoke(expressionContext, new BoundExpressionOptions
{
AllowPrivateAccess = true,
ResultType = resultType
});
expectedResult = RoundIfReal(expectedResult);
actualResult = RoundIfReal(actualResult);
Assert.Equal(expectedResult, actualResult);
}
}
public void TestLongBranchLogical2()
{
string expressionText = this.GetIndividualTest("LongBranch2");
ExpressionContext context = new ExpressionContext();
var e = new DynamicExpression <bool>(expressionText, ExpressionLanguage.Flee);
Assert.IsFalse(e.Invoke(context));
}
public void TestLongBranchLogical2()
{
var expressionText = GetIndividualTest("LongBranch2");
var expr = new DynamicExpression <bool>(expressionText, ExpressionLanguage.Flee);
var context = new ExpressionContext();
Assert.False(expr.Invoke(context));
}
public void TestNonPublicImports()
{
// ...until we set an owner that is in the same module
var context = new ExpressionContext(null, new OverloadTestExpressionOwner());
context.Imports.Add(new Import(typeof(TestImport)));
var e = new DynamicExpression("DoStuff()", ExpressionLanguage.Flee);
Assert.AreEqual(100, (int)e.Invoke(context));
}
public void TestValueTypeVariables()
{
var context = new ExpressionContext();
var variables = context.Variables;
variables.Add("a", 100);
variables.Add("b", -100);
variables.Add("c", DateTime.Now);
var e1 = new DynamicExpression <int>("a+b", ExpressionLanguage.Flee);
var result = e1.Invoke(context);
Assert.Equal(100 + -100, result);
variables["B"].Value = 1000;
result = e1.Invoke(context);
Assert.Equal(100 + 1000, result);
var e2 = new DynamicExpression <string>("c.tolongdatestring() + c.Year.tostring()", ExpressionLanguage.Flee);
Assert.Equal(DateTime.Now.ToLongDateString() + DateTime.Now.Year, e2.Invoke(context));
}
private void DoTestOverloadResolution(string expression, ExpressionContext context, int expectedResult)
{
try
{
var e = new DynamicExpression <int>(expression, ExpressionLanguage.Flee);
int result = e.Invoke(context);
Assert.AreEqual(expectedResult, result);
}
catch (Exception)
{
Assert.AreEqual(-1, expectedResult);
}
}
public void TestImportsNamespaces()
{
ExpressionContext context = new ExpressionContext();
context.Imports.Add(new Import("ns1", typeof(Math)));
context.Imports.Add(new Import("ns1", typeof(string)));
var e = new DynamicExpression("ns1.cos(100)", ExpressionLanguage.Flee);
Assert.AreEqual(Math.Cos(100), (double)e.Invoke(context));
e = new DynamicExpression("ns1.concat(\"a\", \"b\")", ExpressionLanguage.Flee);
Assert.AreEqual(string.Concat("a", "b"), e.Invoke(context));
}
public void TestFieldWithSameNameAsVariable()
{
ExpressionContext context = new ExpressionContext(null, new Monitor());
context.Variables.Add("doubleA", new ExpressionOwner());
this.AssertCompileException("doubleA.doubleA", context);
// But it should work for a public member
context = new ExpressionContext();
Monitor m = new Monitor();
context.Variables.Add("I", m);
var e = new DynamicExpression("i.i", ExpressionLanguage.Flee);
Assert.AreEqual(m.I, (int)e.Invoke(context));
}
public void TestNestedTypeImport()
{
ExpressionContext context = new ExpressionContext();
// Should be able to import public nested type
context.Imports.Add(new Import(typeof(NestedA.NestedPublicB)));
var e = new DynamicExpression("DoStuff()", ExpressionLanguage.Flee);
Assert.AreEqual(100, (int)e.Invoke(context));
// Should be able to import nested internal type now
context = new ExpressionContext(null, new OverloadTestExpressionOwner());
context.Imports.Add(new Import(typeof(NestedA.NestedInternalB)));
e = new DynamicExpression("DoStuff()", ExpressionLanguage.Flee);
Assert.AreEqual(100, (int)e.Invoke(context));
}
public void TestFieldWithSameNameAsVariable()
{
ExpressionContext context = new ExpressionContext(null, new Monitor());
context.Variables.Add("doubleA", new ExpressionOwner());
this.AssertCompileException("doubleA.doubleA", context);
// But it should work for a public member
context = new ExpressionContext();
Monitor m = new Monitor();
context.Variables.Add("I", m);
var e = new DynamicExpression("i.i", ExpressionLanguage.Flee);
Assert.AreEqual(m.I, (int)e.Invoke(context));
}
private static void ParseWhen(string when, out Func <bool> predicate)
{
if (string.IsNullOrEmpty(when))
{
predicate = () => true;
return;
}
var expression = new DynamicExpression(when, ExpressionLanguage.Csharp);
predicate = () =>
{
var context = new ExpressionContext();
ContextActionService.StateVariables.ForEach(v => context.Variables.Add(v.Key, v.Value));
var result = expression.Invoke(context, WhenExpressionOptions);
return((bool)result);
};
}
protected void Resolve(ExpressionContext expressionContext, string expression, object expected, BoundExpressionOptions options)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
var dynamicExpression = new DynamicExpression(
expression,
ExpressionLanguage.Csharp
);
var actual = dynamicExpression.Invoke(
expressionContext ?? new ExpressionContext(),
options
);
Assert.Equal(expected, actual);
}
public static bool Evaluate(string questionCode, string displayLogic, string response)
{
var isInverse = displayLogic.Contains("!=");
displayLogic = displayLogic.Replace(questionCode, "a");
if (isInverse)
{
displayLogic = displayLogic.Replace("!=", "==");
}
var expression = new DynamicExpression(displayLogic, ExpressionLanguage.Csharp);
var context = new ExpressionContext();
context.Variables.Add("a", response);
var result = (bool)expression.Invoke(context);
return(isInverse ? !result : result);
}
public static bool EvaluateArgs(string args, Player player,
ExpressionLanguage language = ExpressionLanguage.Csharp)
{
var expression = new DynamicExpression(args, language);
// Only create context once
if (player.Context == null)
{
player.Context = new ExpressionContext(null, player, true);
player.Context.Variables.Add("Player", player);
foreach (var spell in player.Spells.DistinctBy(s => s.Name))
{
player.Context.Variables.Add(spell.Name, spell);
}
}
var res = expression.Invoke(player.Context);
return((bool)res);
}
public void TestGenericEvaluate()
{
ExpressionContext context = default(ExpressionContext);
context = new ExpressionContext();
var e1 = new DynamicExpression<int>("1000", ExpressionLanguage.Flee);
Assert.AreEqual(1000, e1.Invoke(context));
var e2 = new DynamicExpression<double>("1000.25", ExpressionLanguage.Flee);
Assert.AreEqual(1000.25, e2.Invoke(context));
var e3 = new DynamicExpression<double>("1000", ExpressionLanguage.Flee);
Assert.AreEqual(1000.0, e3.Invoke(context));
var e4 = new DynamicExpression<ValueType>("1000", ExpressionLanguage.Flee);
ValueType vt = e4.Invoke(context);
Assert.AreEqual(1000, vt);
var e5 = new DynamicExpression<object>("1000 + 2.5", ExpressionLanguage.Flee);
object o = e5.Invoke(context);
Assert.AreEqual(1000 + 2.5, o);
}
private void TestReferenceTypeVariables()
{
ExpressionContext context = new ExpressionContext();
VariableCollection variables = context.Variables;
variables.Add("a", "string");
variables.Add("b", 100);
var e = new DynamicExpression<string>("a + b + a.tostring()", ExpressionLanguage.Flee);
string result = e.Invoke(context);
Assert.AreEqual("string" + 100 + "string", result);
variables["a"].Value = "test";
variables["b"].Value = 1;
result = e.Invoke(context);
Assert.AreEqual("test" + 1 + "test", result);
// Test null value
variables.Add("nullvar", null);
var e2 = new DynamicExpression<bool>("nullvar = null", ExpressionLanguage.Flee);
Assert.IsTrue(e2.Invoke(context));
}
private void TestValueTypeVariables()
{
ExpressionContext context = new ExpressionContext();
VariableCollection variables = context.Variables;
variables.Add("a", 100);
variables.Add("b", -100);
variables.Add("c", DateTime.Now);
var e1 = new DynamicExpression<int>("a+b", ExpressionLanguage.Flee);
int result = e1.Invoke(context);
Assert.AreEqual(100 + -100, result);
variables["B"].Value = 1000;
result = e1.Invoke(context);
Assert.AreEqual(100 + 1000, result);
var e2 = new DynamicExpression<string>("c.tolongdatestring() + c.Year.tostring()", ExpressionLanguage.Flee);
Assert.AreEqual(DateTime.Now.ToLongDateString() + DateTime.Now.Year, e2.Invoke(context));
// Test null value
//variables["a"].Value = null;
//e1 = new DynamicExpression<int>("a", ExpressionLanguage.Flee);
//Assert.AreEqual(0, e1.Invoke(context));
}
public void TestLongBranchLogical1()
{
string expressionText = this.GetIndividualTest("LongBranch1");
ExpressionContext context = new ExpressionContext();
VariableCollection vc = context.Variables;
vc.Add("M0100_ASSMT_REASON", "0");
vc.Add("M0220_PRIOR_NOCHG_14D", "1");
vc.Add("M0220_PRIOR_UNKNOWN", "1");
vc.Add("M0220_PRIOR_UR_INCON", "1");
vc.Add("M0220_PRIOR_CATH", "1");
vc.Add("M0220_PRIOR_INTRACT_PAIN", "1");
vc.Add("M0220_PRIOR_IMPR_DECSN", "1");
vc.Add("M0220_PRIOR_DISRUPTIVE", "1");
vc.Add("M0220_PRIOR_MEM_LOSS", "1");
vc.Add("M0220_PRIOR_NONE", "1");
vc.Add("M0220_PRIOR_UR_INCON_bool", true);
vc.Add("M0220_PRIOR_CATH_bool", true);
vc.Add("M0220_PRIOR_INTRACT_PAIN_bool", true);
vc.Add("M0220_PRIOR_IMPR_DECSN_bool", true);
vc.Add("M0220_PRIOR_DISRUPTIVE_bool", true);
vc.Add("M0220_PRIOR_MEM_LOSS_bool", true);
vc.Add("M0220_PRIOR_NONE_bool", true);
vc.Add("M0220_PRIOR_NOCHG_14D_bool", true);
vc.Add("M0220_PRIOR_UNKNOWN_bool", true);
var e = new DynamicExpression(expressionText, ExpressionLanguage.Flee);
// We only care that the expression is valid and can be evaluated
object result = e.Invoke(context);
}
public void TestOnDemandVariables()
{
var e = new DynamicExpression("a + b", ExpressionLanguage.Flee);
Assert.AreEqual(100 + 100, (int)e.Invoke(new TestExpressionContext()));
}
public void TestStringNewlineEscape()
{
var e = new DynamicExpression<string>("\"a\\r\\nb\"", ExpressionLanguage.Flee);
string s = e.Invoke();
string expected = string.Format("a{0}b", ControlChars.CrLf);
Assert.AreEqual(expected, s);
}
public void TestValueTypeOwner()
{
TestStruct owner = new TestStruct(100);
ExpressionContext context = this.CreateGenericContext(owner);
var options = new BoundExpressionOptions
{
AllowPrivateAccess = true
};
var e = new DynamicExpression<int>("mya.compareto(100)", ExpressionLanguage.Flee);
int result = e.Invoke(context, options);
Assert.AreEqual(0, result);
e = new DynamicExpression<int>("myA", ExpressionLanguage.Flee);
result = e.Invoke(context, options);
Assert.AreEqual(100, result);
e = new DynamicExpression<int>("DoStuff()", ExpressionLanguage.Flee);
result = e.Invoke(context);
Assert.AreEqual(100, result);
DateTime dt = DateTime.Now;
context = this.CreateGenericContext(dt);
e = new DynamicExpression<int>("Month", ExpressionLanguage.Flee);
result = e.Invoke(context);
Assert.AreEqual(dt.Month, result);
var e2 = new DynamicExpression<string>("tolongdatestring()", ExpressionLanguage.Flee);
Assert.AreEqual(dt.ToLongDateString(), e2.Invoke(context));
}
public void TestNonPublicImports()
{
// ...until we set an owner that is in the same module
var context = new ExpressionContext(null, new OverloadTestExpressionOwner());
context.Imports.Add(new Import(typeof(TestImport)));
var e = new DynamicExpression("DoStuff()", ExpressionLanguage.Flee);
Assert.AreEqual(100, (int)e.Invoke(context));
}
public void TestOnDemandVariables()
{
var e = new DynamicExpression("a + b", ExpressionLanguage.Flee);
Assert.AreEqual(100 + 100, (int)e.Invoke(new TestExpressionContext()));
}
public void TestNestedTypeImport()
{
ExpressionContext context = new ExpressionContext();
// Should be able to import public nested type
context.Imports.Add(new Import(typeof(NestedA.NestedPublicB)));
var e = new DynamicExpression("DoStuff()", ExpressionLanguage.Flee);
Assert.AreEqual(100, (int)e.Invoke(context));
// Should be able to import nested internal type now
context = new ExpressionContext(null, new OverloadTestExpressionOwner());
context.Imports.Add(new Import(typeof(NestedA.NestedInternalB)));
e = new DynamicExpression("DoStuff()", ExpressionLanguage.Flee);
Assert.AreEqual(100, (int)e.Invoke(context));
}
public void TestImports()
{
ExpressionContext context;
context = new ExpressionContext();
// Import math type directly
context.Imports.Add(new Import(typeof(Math)));
// Should be able to see PI without qualification
var e = new DynamicExpression<double>("pi", ExpressionLanguage.Flee);
Assert.AreEqual(Math.PI, e.Invoke(context));
context = new ExpressionContext(null, MyValidExpressionsOwner);
// Import math type with prefix
context.Imports.Add(new Import("math", typeof(Math)));
// Should be able to see pi by qualifying with Math
e = new DynamicExpression<double>("math.pi", ExpressionLanguage.Flee);
Assert.AreEqual(Math.PI, e.Invoke(context));
// Import nothing
context = new ExpressionContext();
// Should not be able to see PI
this.AssertCompileException("pi");
this.AssertCompileException("math.pi");
// Test importing of builtin types
new DynamicExpression<double>("double.maxvalue", ExpressionLanguage.Flee).Bind(null);
new DynamicExpression<string>("string.concat(\"a\", \"b\")", ExpressionLanguage.Flee).Bind(null);
new DynamicExpression<long>("long.maxvalue * 2", ExpressionLanguage.Flee).Bind(null);
}
public void TestLongBranchLogical2()
{
string expressionText = this.GetIndividualTest("LongBranch2");
ExpressionContext context = new ExpressionContext();
var e = new DynamicExpression<bool>(expressionText, ExpressionLanguage.Flee);
Assert.IsFalse(e.Invoke(context));
}
private void DoTestCheckedExpressions(string[] arr)
{
string expression = arr[0];
bool @checked = bool.Parse(arr[1]);
bool shouldOverflow = bool.Parse(arr[2]);
var imports = new[]
{
new Import(typeof(Math))
};
ExpressionContext context = new ExpressionContext(imports, MyValidExpressionsOwner);
try
{
var e = new DynamicExpression(expression, Language);
e.Invoke(context, new BoundExpressionOptions
{
Checked = @checked
});
Assert.IsFalse(shouldOverflow);
}
catch (OverflowException)
{
Assert.IsTrue(shouldOverflow);
}
}
private void DoTestOverloadResolution(string expression, ExpressionContext context, int expectedResult)
{
try
{
var e = new DynamicExpression<int>(expression, ExpressionLanguage.Flee);
int result = e.Invoke(context);
Assert.AreEqual(expectedResult, result);
}
catch (Exception)
{
Assert.AreEqual(-1, expectedResult);
}
}
protected void DoTest(DynamicExpression expression, ExpressionContext expressionContext, string result, Type resultType, CultureInfo testCulture)
{
if (ReferenceEquals(resultType, typeof(object)))
{
Type expectedType = Type.GetType(result, false, true);
if (expectedType == null)
{
// Try to get the type from the Tests assembly
result = string.Format("{0}.{1}", typeof(ExpressionTests).Namespace, result);
expectedType = this.GetType().Assembly.GetType(result, true, true);
}
object expressionResult = expression.Invoke(expressionContext, new BoundExpressionOptions
{
AllowPrivateAccess = true,
ResultType = resultType
});
if (object.ReferenceEquals(expectedType, typeof(void)))
{
Assert.IsNull(expressionResult);
}
else
{
Assert.That(expressionResult, Is.InstanceOf(expectedType));
}
}
else
{
TypeConverter tc = TypeDescriptor.GetConverter(resultType);
object expectedResult = tc.ConvertFromString(null, CultureInfo.CurrentCulture, result);
object actualResult = expression.Invoke(expressionContext, new BoundExpressionOptions
{
AllowPrivateAccess = true,
ResultType = resultType
});
expectedResult = RoundIfReal(expectedResult);
actualResult = RoundIfReal(actualResult);
Assert.AreEqual(expectedResult, actualResult);
}
}
public void TestImportsNamespaces()
{
ExpressionContext context = new ExpressionContext();
context.Imports.Add(new Import("ns1", typeof(Math)));
context.Imports.Add(new Import("ns1", typeof(string)));
var e = new DynamicExpression("ns1.cos(100)", ExpressionLanguage.Flee);
Assert.AreEqual(Math.Cos(100), (double)e.Invoke(context));
e = new DynamicExpression("ns1.concat(\"a\", \"b\")", ExpressionLanguage.Flee);
Assert.AreEqual(string.Concat("a", "b"), e.Invoke(context));
}
