public void ShouldPassWhenPropertyExpectedNotToChangeRemainsUnchanged()
{
// arrange
var assert = new Asserter();
var expected = "Bob";
var subject = new Person()
{
FirstName = expected
};
// act, assert
assert.PropertyNotChanged(subject, p => p.FirstName, expected);
}
public void PropertyNotChangedShouldAssertNullObject()
{
// arrange
var assert = new Asserter();
var subject = default(Person);
try
{
// act
assert.PropertyNotChanged(subject, p => p.FirstName, string.Empty);
}
catch (AssertFailedException ex)
{
// assert
Assert.AreEqual(GetExpectedMessage(nameof(subject)), ex.Message);
return;
}
Assert.Fail("An exception was expected, but not thrown.");
}
public void PropertyNotChangedShouldAssertNullPropertyExpression()
{
// arrange
var assert = new Asserter();
var subject = new Person();
var testProperty = default(Expression <Func <Person, string> >);
try
{
// act
assert.PropertyNotChanged(subject, testProperty, string.Empty);
}
catch (AssertFailedException ex)
{
// assert
Assert.AreEqual(GetExpectedMessage(nameof(testProperty)), ex.Message);
return;
}
Assert.Fail("An exception was expected, but not thrown.");
}
public void ShouldFailWhenPropertyExpectedNotToChangeHasChanged()
{
// arrange
var assert = new Asserter();
var subject = new Person()
{
FirstName = "Bob"
};
try
{
// act
assert.PropertyNotChanged(subject, p => p.FirstName, "John");
}
catch (AssertFailedException)
{
// assert
return;
}
Assert.Fail("An exception was expected, but not thrown.");
}