public void HasChanges_TrueAfterCurrentValueSet()
{
var subject = new ChangeContainerValue("Initial Value");
subject.CurrentValue = "FirstValue";
Assert.True(subject.HasChanges);
}
public void GetChangeSet_ThrowWhenPathNull()
{
var subject = new ChangeContainerValue("Initial Value");
subject.CurrentValue = "new value";
Assert.Throws <ArgumentNullException>(() => subject.GetChangeSet(null));
}
public void CurrentValue_EqualsInitialValueAtCreation()
{
var expectedValue = "Initial Value";
var subject = new ChangeContainerValue(expectedValue);
Assert.Equal(expectedValue, subject.CurrentValue);
}
public void HasChanges_Int_FalseWhenSameValueSet()
{
var expected = 123;
var subject = new ChangeContainerValue(expected);
subject.CurrentValue = expected;
Assert.False(subject.HasChanges);
}
public void HasChanges_String_FalseWhenSameValueSet()
{
var expected = "Initial Value";
var subject = new ChangeContainerValue(expected);
subject.CurrentValue = expected;
Assert.False(subject.HasChanges);
}
public void Reset_CurrentValueBackToOldAfterReset()
{
var expectedValue = "Initial Value";
var subject = new ChangeContainerValue(expectedValue);
subject.CurrentValue = "FirstValue";
subject.Reset();
Assert.Equal(expectedValue, subject.CurrentValue);
}
public void Reset_HasChangesFalseAfterReset()
{
var subject = new ChangeContainerValue("Initial Value");
subject.CurrentValue = "FirstValue";
Assert.True(subject.HasChanges);
subject.Reset();
Assert.False(subject.HasChanges);
}
public void GetChangeSet_NullWhenNoChanges()
{
var subject = new ChangeContainerValue("Initial Value");
Assert.False(subject.HasChanges);
var changes = subject.GetChangeSet(ChangePath.Empty, commit: true);
Assert.Null(changes);
}
public void GetChangeSet_CommitFalseKeepsChanges()
{
var subject = new ChangeContainerValue("Initial Value");
subject.CurrentValue = "New Value";
Assert.True(subject.HasChanges);
var changes = subject.GetChangeSet(ChangePath.Empty);
Assert.True(subject.HasChanges);
}
public void GetChangeSet_CommitTrueCommitsChanges()
{
var expectedNewValue = "New Value";
var subject = new ChangeContainerValue("Initial Value");
subject.CurrentValue = expectedNewValue;
Assert.True(subject.HasChanges);
var changes = subject.GetChangeSet(ChangePath.Empty, commit: true);
Assert.False(subject.HasChanges);
Assert.Equal(expectedNewValue, subject.CurrentValue);
}
public void GetChangeSet_GeneratesCorrectChangeSetForITracksChanges()
{
var path = ChangePath.Create("Key");
var expectedPath = path.AppendProperty(nameof(NestedObject.StringValue));
var nested = ChangeTrackingObject.CreateTrackable <NestedObject>();
var subject = new ChangeContainerValue(nested);
nested.StringValue = "My new value;";
var changes = subject.GetChangeSet(path);
Assert.Single(changes);
Assert.True(changes.ContainsKey(expectedPath));
}
public void GetChangeSet_GeneratesCorrectChangeSet()
{
var expectedOldValue = "Initial Value";
var expectedNewValue = "New Value";
var expectedPath = ChangePath.Create("Key");
var subject = new ChangeContainerValue(expectedOldValue);
subject.CurrentValue = expectedNewValue;
var changes = subject.GetChangeSet(expectedPath);
Assert.Single(changes);
Assert.True(changes.ContainsKey(expectedPath));
Assert.Single(changes[expectedPath]);
Assert.Equal(ChangeAction.Update, changes[expectedPath][0].Action);
Assert.Equal(expectedOldValue, changes[expectedPath][0].OldValue);
Assert.Equal(expectedNewValue, changes[expectedPath][0].NewValue);
}
public void HasChanges_FalseOnInitialize()
{
var subject = new ChangeContainerValue("Initial Value");
Assert.False(subject.HasChanges);
}
