nushell/crates/nu-command/tests/commands/reduce.rs
Leon 9945241b77
Remove deprecated --numbered flag from four commands (#7777)
# Description

Remove `--numbered` from ~~`for`~~, `each`, `par-each`, `reduce` and
`each while`. These all provide indexes (numbering) via the optional
second param to their closures.

EDIT: Closes #6986.

# User-Facing Changes

Every command that had `--numbered` listed as "deprecated" in their help
docs is affected.

# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

---------

Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
2023-02-02 16:59:58 -06:00

136 lines
2.8 KiB
Rust

use nu_test_support::{nu, pipeline};
#[test]
fn reduce_table_column() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo "[{month:2,total:30}, {month:3,total:10}, {month:4,total:3}, {month:5,total:60}]"
| from json
| get total
| reduce -f 20 { |it, acc| $it + $acc ** 1.05}
| into string -d 1
"#
)
);
assert_eq!(actual.out, "180.6");
}
#[test]
fn reduce_table_column_with_path() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[{month:2,total:30}, {month:3,total:10}, {month:4,total:3}, {month:5,total:60}]
| reduce -f 20 { |it, acc| $it.total + $acc ** 1.05}
| into string -d 1
"#
)
);
assert_eq!(actual.out, "180.6");
}
#[test]
fn reduce_rows_example() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[[a,b]; [1,2] [3,4]]
| reduce -f 1.6 { |it, acc| $acc * ($it.a | into int) + ($it.b | into int) }
"#
)
);
assert_eq!(actual.out, "14.8");
}
#[test]
fn reduce_enumerate_example() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo one longest three bar | enumerate
| reduce { |it, acc| if ($it.item | str length) > ($acc.item | str length) {echo $it} else {echo $acc}}
| get index
"#
)
);
assert_eq!(actual.out, "1");
}
#[test]
fn reduce_enumerate_integer_addition_example() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [1 2 3 4]
| enumerate
| reduce { |it, acc| { index: ($it.index) item: ($acc.item + $it.item)} }
| get item
"#
)
);
assert_eq!(actual.out, "10");
}
#[test]
fn folding_with_tables() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo [10 20 30 40]
| reduce -f [] { |it, acc|
with-env [value $it] {
echo $acc | append (10 * ($env.value | into int))
}
}
| math sum
"#
)
);
assert_eq!(actual.out, "1000");
}
#[test]
fn error_reduce_fold_type_mismatch() {
let actual = nu!(
cwd: ".", pipeline(
r#"
echo a b c | reduce -f 0 { |it, acc| $acc + $it }
"#
)
);
assert!(actual.err.contains("mismatch"));
}
#[test]
fn error_reduce_empty() {
let actual = nu!(
cwd: ".", pipeline(
r#"
reduce { |it, acc| $acc + $it }
"#
)
);
assert!(actual.err.contains("needs input"));
}
#[test]
fn enumerate_reduce_example() {
let actual = nu!(
cwd: ".", pipeline(
r#"
[one longest three bar] | enumerate | reduce {|it, acc| if ($it.item | str length) > ($acc.item | str length) { $it } else { $acc }} | get index
"#
)
);
assert_eq!(actual.out, "1");
}