public void ToProperty_NameOf_ValidValuesProduced(string[] testWords, string[] first3Letters, string[] last3Letters)
{
var fixture = new RxphNameOfTestFixture();
fixture.ObservableForProperty(x => x.FirstThreeLettersOfOneWord, beforeChange: true).ToObservableChangeSet(ImmediateScheduler.Instance).Bind(out var firstThreeChanging).Subscribe();
fixture.ObservableForProperty(x => x.LastThreeLettersOfOneWord, beforeChange: true).ToObservableChangeSet(ImmediateScheduler.Instance).Bind(out var lastThreeChanging).Subscribe();
var changing = new[] { firstThreeChanging, lastThreeChanging };
fixture.ObservableForProperty(x => x.FirstThreeLettersOfOneWord, beforeChange: false).ToObservableChangeSet(ImmediateScheduler.Instance).Bind(out var firstThreeChanged).Subscribe();
fixture.ObservableForProperty(x => x.LastThreeLettersOfOneWord, beforeChange: false).ToObservableChangeSet(ImmediateScheduler.Instance).Bind(out var lastThreeChanged).Subscribe();
var changed = new[] { firstThreeChanged, lastThreeChanged };
Assert.True(changed.All(x => x.Count == 0));
Assert.True(changing.All(x => x.Count == 0));
for (var i = 0; i < testWords.Length; ++i)
{
fixture.IsOnlyOneWord = testWords[i];
Assert.True(changed.All(x => x.Count == i + 1));
Assert.True(changing.All(x => x.Count == i + 1));
Assert.Equal(first3Letters[i], firstThreeChanged[i].Value);
Assert.Equal(last3Letters[i], lastThreeChanged[i].Value);
var firstChanging = i - 1 < 0 ? string.Empty : first3Letters[i - 1];
var lastChanging = i - 1 < 0 ? string.Empty : last3Letters[i - i];
Assert.Equal(firstChanging, firstThreeChanging[i].Value);
Assert.Equal(lastChanging, lastThreeChanging[i].Value);
}
}
public void ToProperty_NameOf_ShouldFireBothChangingAndChanged()
{
var fixture = new RxphNameOfTestFixture();
var changing = false;
var changed = false;
fixture.PropertyChanging += (sender, e) => changing = true;
fixture.PropertyChanged += (sender, e) => changed = true;
Assert.False(changing);
Assert.False(changed);
fixture.IsOnlyOneWord = "baz";
Assert.True(changing);
Assert.True(changed);
}
