public void NotifyPropertyChanged_OwnerAndExpression_ObservesIntegerAndBoolean_Test()
{
var actionIntegerRaised = false;
var actionBooleanRaised = false;
var notifyPropertyChangedTestObject =
new NotifyPropertyChangedTestObject {
IntProperty = 1, BoolProperty = false
};
using var integerObserver = PropertyObserver.Observes(
notifyPropertyChangedTestObject,
o => o.IntProperty,
() => actionIntegerRaised = true);
using var booleanObserver = PropertyObserver.Observes(
notifyPropertyChangedTestObject,
o => o.BoolProperty,
() => actionBooleanRaised = true);
Assert.False(actionIntegerRaised);
Assert.False(actionBooleanRaised);
notifyPropertyChangedTestObject.BoolProperty = true;
Assert.True(actionBooleanRaised);
Assert.False(actionIntegerRaised);
notifyPropertyChangedTestObject.IntProperty = 2;
Assert.True(actionBooleanRaised);
Assert.True(actionIntegerRaised);
}
public void NotifyPropertyChanged_Integer_Subscribe()
{
var actionRaisedCount = 0;
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject {
IntProperty = 1
};
using var observer = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => actionRaisedCount++,
false);
Assert.AreEqual(0, actionRaisedCount);
notifyPropertyChangedTestObject.IntProperty = 2;
Assert.AreEqual(0, actionRaisedCount);
observer.Subscribe();
notifyPropertyChangedTestObject.IntProperty = 3;
Assert.AreEqual(1, actionRaisedCount);
notifyPropertyChangedTestObject.IntProperty = 4;
Assert.AreEqual(2, actionRaisedCount);
observer.Unsubscribe();
notifyPropertyChangedTestObject.IntProperty = 5;
Assert.AreEqual(2, actionRaisedCount);
}
public void NotifyPropertyChanged_SameAre_NotEqualOperator_Test()
{
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject();
using var observer1 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => { });
using var observer2 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => { });
Assert.False(observer1 != observer2);
}
public void NotifyPropertyChanged_Equal_1_Test()
{
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject();
using var observer1 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => { });
using var observer2 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => { });
Assert.True(observer1.Equals(observer2));
}
public void NotifyPropertyChanged_Integer_AutoActivate_False()
{
var actionRaised = false;
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject();
using var observer = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => actionRaised = true, false);
Assert.False(actionRaised);
notifyPropertyChangedTestObject.IntProperty = 2;
Assert.False(actionRaised);
}
public void NotifyPropertyChanged_Different_NotEqualOperator_Test()
{
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject();
using var observer1 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.BoolPropertyExpression,
() => { });
using var observer2 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.IntPropertyExpression,
() => { });
Assert.True((object)observer1 != observer2);
}
public void NotifyPropertyChanged_Equal_2_Test()
{
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject();
using var observer1 = PropertyObserver.Observes(
notifyPropertyChangedTestObject.ComplexPropertyIntPropertyExpression,
() => { });
using var observer2 = PropertyObserver.Observes(
notifyPropertyChangedTestObject,
o => o.ComplexProperty.IntProperty,
() => { });
Assert.True(observer1 == observer2);
}
public void NotifyPropertyChanged_OwnerAndExpressions_ComplexType_Test()
{
var canExecuteChangedRaiseCount = 0;
var notifyPropertyChangedTestObject = new NotifyPropertyChangedTestObject
{
ComplexProperty = new ComplexType
{
IntProperty = 1,
InnerComplexProperty =
new ComplexType
{
IntProperty = 1,
InnerComplexProperty =
new ComplexType
{
IntProperty
= 1
}
}
}
};
using var observer1 = PropertyObserver.Observes(
notifyPropertyChangedTestObject,
o => o.ComplexProperty.IntProperty,
() => canExecuteChangedRaiseCount++);
using var observer2 = PropertyObserver.Observes(
notifyPropertyChangedTestObject,
o => o.ComplexProperty.InnerComplexProperty.IntProperty,
() => canExecuteChangedRaiseCount++);
using var observer3 = PropertyObserver.Observes(
notifyPropertyChangedTestObject,
o => o.ComplexProperty.InnerComplexProperty.InnerComplexProperty.IntProperty,
() => canExecuteChangedRaiseCount++);
Assert.AreEqual(0, canExecuteChangedRaiseCount);
notifyPropertyChangedTestObject.ComplexProperty.IntProperty = 2;
Assert.AreEqual(1, canExecuteChangedRaiseCount);
notifyPropertyChangedTestObject.ComplexProperty.InnerComplexProperty.IntProperty = 2;
Assert.AreEqual(2, canExecuteChangedRaiseCount);
notifyPropertyChangedTestObject.ComplexProperty.InnerComplexProperty.InnerComplexProperty.IntProperty = 2;
Assert.AreEqual(3, canExecuteChangedRaiseCount);
var innerInnerComplexProp = notifyPropertyChangedTestObject.ComplexProperty.InnerComplexProperty
.InnerComplexProperty;
var innerComplexProp = notifyPropertyChangedTestObject.ComplexProperty.InnerComplexProperty;
var complexProp = notifyPropertyChangedTestObject.ComplexProperty;
Assert.AreEqual(1, innerInnerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(2, innerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(3, complexProp.GetPropertyChangedSubscribedLength());
notifyPropertyChangedTestObject.ComplexProperty = new ComplexType
{
InnerComplexProperty = new ComplexType
{
InnerComplexProperty =
new ComplexType()
}
};
Assert.AreEqual(6, canExecuteChangedRaiseCount);
Assert.AreEqual(0, innerInnerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(0, innerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(0, complexProp.GetPropertyChangedSubscribedLength());
innerInnerComplexProp = notifyPropertyChangedTestObject.ComplexProperty.InnerComplexProperty
.InnerComplexProperty;
innerComplexProp = notifyPropertyChangedTestObject.ComplexProperty.InnerComplexProperty;
complexProp = notifyPropertyChangedTestObject.ComplexProperty;
Assert.AreEqual(1, innerInnerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(2, innerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(3, complexProp.GetPropertyChangedSubscribedLength());
notifyPropertyChangedTestObject.ComplexProperty = null;
Assert.AreEqual(9, canExecuteChangedRaiseCount);
Assert.AreEqual(0, innerInnerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(0, innerComplexProp.GetPropertyChangedSubscribedLength());
Assert.AreEqual(0, complexProp.GetPropertyChangedSubscribedLength());
}
