public void Clone_replicates_instance_and_adds_column_clones_to_cache()
{
var column0 = new Column("C0", typeof(int));
var column1 = new Column("C1", typeof(int));
var referencedColumn0 = new Column("RC0", typeof(int));
var referencedColumn1 = new Column("RC1", typeof(int));
var foreignKey
= new ForeignKey(
"FK",
new[] { column0, column1 },
new[] { referencedColumn0, referencedColumn1 },
cascadeDelete: true);
var cloneContext = new CloneContext();
var clone = foreignKey.Clone(cloneContext);
Assert.NotSame(foreignKey, clone);
Assert.Equal("FK", clone.Name);
Assert.Equal(2, clone.Columns.Count);
Assert.NotSame(column0, clone.Columns[0]);
Assert.NotSame(column1, clone.Columns[1]);
Assert.Equal("C0", clone.Columns[0].Name);
Assert.Equal("C1", clone.Columns[1].Name);
Assert.Equal(2, clone.ReferencedColumns.Count);
Assert.NotSame(referencedColumn0, clone.ReferencedColumns[0]);
Assert.NotSame(referencedColumn1, clone.ReferencedColumns[1]);
Assert.Equal("RC0", clone.ReferencedColumns[0].Name);
Assert.Equal("RC1", clone.ReferencedColumns[1].Name);
Assert.True(clone.CascadeDelete);
Assert.Same(clone.Columns[0], cloneContext.GetOrAdd(column0, () => null));
Assert.Same(clone.Columns[1], cloneContext.GetOrAdd(column1, () => null));
Assert.Same(clone.ReferencedColumns[0], cloneContext.GetOrAdd(referencedColumn0, () => null));
Assert.Same(clone.ReferencedColumns[1], cloneContext.GetOrAdd(referencedColumn1, () => null));
}
public void Clone_gets_column_clones_from_cache()
{
var column0 = new Column("C0", typeof(int));
var column1 = new Column("C1", typeof(int));
var referencedColumn0 = new Column("RC0", typeof(int));
var referencedColumn1 = new Column("RC1", typeof(int));
var foreignKey
= new ForeignKey(
"FK",
new[] { column0, column1 },
new[] { referencedColumn0, referencedColumn1 },
cascadeDelete: true);
var cloneContext = new CloneContext();
var columnClone0 = column0.Clone(cloneContext);
var columnClone1 = column1.Clone(cloneContext);
var referencedColumnClone0 = referencedColumn0.Clone(cloneContext);
var referencedColumnClone1 = referencedColumn1.Clone(cloneContext);
var clone = foreignKey.Clone(cloneContext);
Assert.NotSame(foreignKey, clone);
Assert.Equal(2, clone.Columns.Count);
Assert.Same(columnClone0, clone.Columns[0]);
Assert.Same(columnClone1, clone.Columns[1]);
Assert.Equal(2, clone.ReferencedColumns.Count);
Assert.Same(referencedColumnClone0, clone.ReferencedColumns[0]);
Assert.Same(referencedColumnClone1, clone.ReferencedColumns[1]);
}
/// <inheritdoc />
public override IMigrationExpression Reverse()
{
return(new DeleteForeignKeyExpression {
ForeignKey = ForeignKey.Clone() as ForeignKeyDefinition
});
}