private List <WeakReference> GetLambdasWeakRefs(CompileTimesMockInterpreterParser compileTimesParser, int expectedLambdasCount)
{
Assert.AreEqual(expectedLambdasCount, compileTimesParser.CreatedLambdas.Count);
return(compileTimesParser
.CreatedLambdas
.Select(l => new WeakReference(l))
.ToList());
}
public void BindingCompileTimesShouldBeOneTest()
{
var interpreterMock = new CompileTimesMockInterpreterParser();
var converter = CreateConverter(interpreterMock);
converter.Convert("15", typeof(string), "{0}+\"5\"", CultureInfo.CurrentCulture);
Assert.AreEqual(1, interpreterMock.ParseCallsByExpressions.Count);
Assert.AreEqual(1, interpreterMock.ParseCallsByExpressions.First().Value);
}
public void BindingBackCompileTimesShouldBeTwoTest()
{
var interpreterMock = new CompileTimesMockInterpreterParser();
var converter = CreateConverter(interpreterMock);
converter.ConvertBack("15", typeof(int), "{0}+5", CultureInfo.CurrentCulture);
Assert.AreEqual(2, interpreterMock.ParseCallsByExpressions.Count);
Assert.AreEqual(1, interpreterMock.ParseCallsByExpressions.First().Value);
Assert.AreEqual(1, interpreterMock.ParseCallsByExpressions.Skip(1).First().Value);
}
public void OneExpressionCompilesOneTimeTest()
{
var compileTimesParser = new CompileTimesMockInterpreterParser();
try
{
CalcBinding.Binding.ReplaceExpressionParser(CreateParser(compileTimesParser));
var test = new ExampleViewModel();
Assert.AreEqual(0, compileTimesParser.GlobalCalls);
for (var i = 0; i < 10; i++)
{
StringAndObjectBindingAssert("A-B", test,
() => { test.A = 20; test.B = 10; }, "10", (double)10,
() => { test.A = 20.34; test.B = 15; }, "5.34", 5.34
);
}
Assert.AreEqual(1, compileTimesParser.GlobalCalls);
StringAndObjectBindingAssert("A-C", test,
() => { test.A = 10; test.C = -2; }, "12", (double)12,
() => { test.A = 20.34; test.C = 12; }, "8.34", 8.34
);
Assert.AreEqual(1, compileTimesParser.GlobalCalls);
StringAndObjectBindingAssert("C-A", test,
() => { test.A = 10; test.C = -2; }, "-12", (double)-12,
() => { test.A = 20.34; test.C = 52; }, "31.66", 31.66
);
Assert.AreEqual(2, compileTimesParser.GlobalCalls);
}
finally
{
CalcBinding.Binding.ReplaceExpressionParser(CreateParser());
}
}
public void OneBackExpressionCompilesOneTimeTest()
{
var compileTimesParser = new CompileTimesMockInterpreterParser();
try
{
CalcBinding.Binding.ReplaceExpressionParser(CreateParser(compileTimesParser));
var test = new ExampleViewModel();
Assert.AreEqual(0, compileTimesParser.GlobalCalls);
for (var i = 0; i < 10; i++)
{
StringAndObjectBindingBackAssert("B+5", test, () => test.B,
"10", "-5", 10, -5,
5, -10);
}
Assert.AreEqual(2, compileTimesParser.GlobalCalls);
StringAndObjectBindingBackAssert("C+5", test, () => test.C,
"100", "-50", 100, -50,
95, -55);
Assert.AreEqual(2, compileTimesParser.GlobalCalls);
StringAndObjectBindingBackAssert("C+6", test, () => test.C,
"100", "-50", 100, -50,
94, -56);
Assert.AreEqual(4, compileTimesParser.GlobalCalls);
}
finally
{
CalcBinding.Binding.ReplaceExpressionParser(CreateParser());
}
}
public void NotUsedExpressionsMustBeCollected()
{
var compileTimesParser = new CompileTimesMockInterpreterParser();
try
{
CalcBinding.Binding.ReplaceExpressionParser(CreateParser(compileTimesParser));
var test = new ExampleViewModel();
Assert.AreEqual(0, compileTimesParser.GlobalCalls);
StringAndObjectBindingBackAssert("C+5", test, () => test.C,
"100", "-50", 100, -50,
95, -55);
Assert.AreEqual(2, compileTimesParser.GlobalCalls);
var lambdasWeakRefs = GetLambdasWeakRefs(compileTimesParser, 2);
compileTimesParser.CreatedLambdas.Clear();
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
Assert.IsTrue(lambdasWeakRefs.All(r => !r.IsAlive), "cached lambdas should be collected");
StringAndObjectBindingBackAssert("C+5", test, () => test.C,
"100", "-50", 100, -50,
95, -55);
Assert.AreEqual(4, compileTimesParser.GlobalCalls);
}
finally
{
CalcBinding.Binding.ReplaceExpressionParser(CreateParser());
}
}
