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use nu_test_support::nu;
#[test]
fn flatten_nested_tables_with_columns() {
let actual = nu!("
[
[[origin, people]; [Ecuador, ('Andres' | wrap name)]]
[[origin, people]; [Nu, ('nuno' | wrap name)]]
]
| flatten --all
| flatten --all
| get name
| str join ','
");
assert_eq!(actual.out, "Andres,nuno");
}
#[test]
fn flatten_nested_tables_that_have_many_columns() {
let actual = nu!("
(
echo [
[origin, people];
[
Ecuador,
(echo [
[name, meal];
['Andres', 'arepa']
])
]
]
[
[origin, people];
[
USA,
(echo [
[name, meal];
['Katz', 'nurepa']
])
]
]
)
| flatten --all
| flatten --all
| get meal
| str join ','
");
assert_eq!(actual.out, "arepa,nurepa");
}
#[test]
fn flatten_nested_tables() {
let actual = nu!("echo [[Andrés, Nicolás, Robalino]] | flatten | get 1");
assert_eq!(actual.out, "Nicolás");
}
#[test]
fn flatten_row_column_explicitly() {
let sample = r#"
[
{
"people": {
"name": "Andres",
"meal": "arepa"
}
},
{
"people": {
"name": "Katz",
"meal": "nurepa"
}
}
]
"#;
let actual = nu!(format!(
"{sample} | flatten people --all | where name == Andres | length"
));
assert_eq!(actual.out, "1");
}
#[test]
fn flatten_row_columns_having_same_column_names_flats_separately() {
let sample = r#"
[
{
"people": {
"name": "Andres",
"meal": "arepa"
},
"city": [{"name": "Guayaquil"}, {"name": "Samborondón"}]
},
{
"people": {
"name": "Katz",
"meal": "nurepa"
},
"city": [{"name": "Oregon"}, {"name": "Brooklin"}]
}
]
"#;
let actual = nu!(format!(
"{sample} | flatten --all | flatten people city | get city_name | length"
));
assert_eq!(actual.out, "4");
}
#[test]
fn flatten_table_columns_explicitly() {
let sample = r#"
[
{
"people": {
"name": "Andres",
"meal": "arepa"
},
"city": ["Guayaquil", "Samborondón"]
},
{
"people": {
"name": "Katz",
"meal": "nurepa"
},
"city": ["Oregon", "Brooklin"]
}
]
"#;
let actual = nu!(format!(
"{sample} | flatten city --all | where people.name == Katz | length",
));
assert_eq!(actual.out, "2");
}
#[test]
fn flatten_more_than_one_column_that_are_subtables_not_supported() {
let sample = r#"
[
{
"people": {
"name": "Andres",
"meal": "arepa"
}
"tags": ["carbohydrate", "corn", "maiz"],
"city": ["Guayaquil", "Samborondón"]
},
{
"people": {
"name": "Katz",
"meal": "nurepa"
},
"tags": ["carbohydrate", "shell food", "amigos flavor"],
"city": ["Oregon", "Brooklin"]
}
]
"#;
let actual = nu!(format!("{sample} | flatten tags city --all"));
assert!(actual.err.contains("tried flattening"));
assert!(actual.err.contains("but is flattened already"));
}