// Select Applies a Select transform.
func (t *Transformer) Select(filter func(optimus.Row) (bool, error)) *Transformer {
return t.Apply(transforms.Select(filter))
}
out <- optimus.Row{}
out <- optimus.Row{}
out <- optimus.Row{}
return nil
},
},
{
Name: "Select",
Source: defaultSource,
Actual: func(source optimus.Table, arg interface{}) optimus.Table {
filter := arg.(func(optimus.Row) (bool, error))
return New(source).Select(filter).Table()
},
Expected: func(source optimus.Table, arg interface{}) optimus.Table {
filter := arg.(func(optimus.Row) (bool, error))
return optimus.Transform(source, transforms.Select(filter))
},
Arg: func(row optimus.Row) (bool, error) {
return row["header1"] == "value1", nil
},
},
{
Name: "Valuemap",
Source: defaultSource,
Actual: func(source optimus.Table, arg interface{}) optimus.Table {
mapping := arg.(map[string]map[interface{}]interface{})
return New(source).Valuemap(mapping).Table()
},
Expected: func(source optimus.Table, arg interface{}) optimus.Table {
mapping := arg.(map[string]map[interface{}]interface{})
return optimus.Transform(source, transforms.Valuemap(mapping))