public void Setting_IsModified_false_reverts_changes_to_join_table_FKs()
{
using var context = new ExplicitFreezerContext();
var cherry1 = new Cherry {
Id = 1
};
var cherry2 = new Cherry {
Id = 2
};
var chunky1 = new Chunky {
Id = 1
};
var chunky2 = new Chunky {
Id = 2
};
AttachGraph(context, cherry1, cherry2, chunky1, chunky2);
var relatedToCherry1 = context.Entry(cherry1).Collection(e => e.Chunkies);
var relatedToCherry2 = context.Entry(cherry2).Collection(e => e.Chunkies);
var relatedToChunky1 = context.Entry(chunky1).Collection(e => e.Cherries);
var relatedToChunky2 = context.Entry(chunky2).Collection(e => e.Cherries);
var joinEntity = context.ChangeTracker.Entries <Dictionary <string, object> >()
.Single(e => e.Property <int>("CherryId").CurrentValue == 1 && e.Property <int>("ChunkyId").CurrentValue == 2)
.Entity;
joinEntity["CherryId"] = 2;
context.ChangeTracker.DetectChanges();
Assert.False(relatedToCherry1.IsModified);
Assert.True(relatedToCherry2.IsModified);
Assert.False(relatedToChunky1.IsModified);
Assert.True(relatedToChunky2.IsModified);
relatedToCherry2.IsModified = false;
Assert.False(relatedToCherry1.IsModified);
Assert.False(relatedToCherry2.IsModified);
Assert.False(relatedToChunky1.IsModified);
Assert.False(relatedToChunky2.IsModified);
foreach (var joinEntry in context.ChangeTracker.Entries <Dictionary <string, object> >())
{
Assert.Equal(EntityState.Unchanged, joinEntry.State);
}
}
public void Setting_IsModified_true_marks_all_join_table_FK_modified()
{
using var context = new ExplicitFreezerContext();
var cherry1 = new Cherry {
Id = 1
};
var cherry2 = new Cherry {
Id = 2
};
var chunky1 = new Chunky {
Id = 1
};
var chunky2 = new Chunky {
Id = 2
};
AttachGraph(context, cherry1, cherry2, chunky1, chunky2);
var relatedToCherry1 = context.Entry(cherry1).Collection(e => e.Chunkies);
var relatedToCherry2 = context.Entry(cherry2).Collection(e => e.Chunkies);
var relatedToChunky1 = context.Entry(chunky1).Collection(e => e.Cherries);
var relatedToChunky2 = context.Entry(chunky2).Collection(e => e.Cherries);
Assert.False(relatedToCherry1.IsModified);
Assert.False(relatedToCherry2.IsModified);
Assert.False(relatedToChunky1.IsModified);
Assert.False(relatedToChunky2.IsModified);
foreach (var joinEntry in context.ChangeTracker.Entries <Dictionary <string, object> >())
{
Assert.Equal(EntityState.Unchanged, joinEntry.State);
}
relatedToCherry1.IsModified = true;
Assert.True(relatedToCherry1.IsModified);
Assert.False(relatedToCherry2.IsModified);
Assert.True(relatedToChunky1.IsModified);
Assert.True(relatedToChunky2.IsModified);
foreach (var joinEntry in context.ChangeTracker.Entries <Dictionary <string, object> >())
{
Assert.Equal(EntityState.Modified, joinEntry.State);
}
}
public void IsModified_tracks_mutation_of_join_fks()
{
using var context = new ExplicitFreezerContext();
var cherry1 = new Cherry {
Id = 1
};
var cherry2 = new Cherry {
Id = 2
};
var chunky1 = new Chunky {
Id = 1
};
var chunky2 = new Chunky {
Id = 2
};
AttachGraph(context, cherry1, cherry2, chunky1, chunky2);
var relatedToCherry1 = context.Entry(cherry1).Collection(e => e.Chunkies);
var relatedToCherry2 = context.Entry(cherry2).Collection(e => e.Chunkies);
var relatedToChunky1 = context.Entry(chunky1).Collection(e => e.Cherries);
var relatedToChunky2 = context.Entry(chunky2).Collection(e => e.Cherries);
var joinEntity = context.ChangeTracker.Entries <Dictionary <string, object> >()
.Single(e => e.Property <int>("CherryId").CurrentValue == 1 && e.Property <int>("ChunkyId").CurrentValue == 2)
.Entity;
joinEntity["CherryId"] = 2;
context.ChangeTracker.DetectChanges();
Assert.False(relatedToCherry1.IsModified);
Assert.True(relatedToCherry2.IsModified);
Assert.False(relatedToChunky1.IsModified);
Assert.True(relatedToChunky2.IsModified);
joinEntity["CherryId"] = 1;
context.ChangeTracker.DetectChanges();
Assert.True(relatedToCherry1.IsModified);
Assert.False(relatedToCherry2.IsModified);
Assert.False(relatedToChunky1.IsModified);
Assert.True(relatedToChunky2.IsModified);
}
