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where_.rs
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where_.rs
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use nu_test_support::nu;
#[cfg(feature = "sqlite")]
use nu_test_support::pipeline;
#[test]
fn filters_by_unit_size_comparison() {
let actual = nu!(
cwd: "tests/fixtures/formats",
"ls | where size > 1kib | sort-by size | get name | first | str trim"
);
assert_eq!(actual.out, "cargo_sample.toml");
}
#[test]
fn filters_with_nothing_comparison() {
let actual = nu!(
r#"'[{"foo": 3}, {"foo": null}, {"foo": 4}]' | from json | get foo | compact | where $it > 1 | math sum"#
);
assert_eq!(actual.out, "7");
}
#[test]
fn where_inside_block_works() {
let actual = nu!("{|x| ls | where $it =~ 'foo' } | describe");
assert_eq!(actual.out, "closure");
}
#[test]
fn filters_with_0_arity_block() {
let actual = nu!("[1 2 3 4] | where {|| $in < 3 } | to nuon");
assert_eq!(actual.out, "[1, 2]");
}
#[test]
fn filters_with_1_arity_block() {
let actual = nu!("[1 2 3 6 7 8] | where {|e| $e < 5 } | to nuon");
assert_eq!(actual.out, "[1, 2, 3]");
}
#[test]
fn unique_env_each_iteration() {
let actual = nu!(
cwd: "tests/fixtures/formats",
"[1 2] | where {|| print ($env.PWD | str ends-with 'formats') | cd '/' | true } | to nuon"
);
assert_eq!(actual.out, "truetrue[1, 2]");
}
#[test]
fn where_in_table() {
let actual = nu!(
r#"'[{"name": "foo", "size": 3}, {"name": "foo", "size": 2}, {"name": "bar", "size": 4}]' | from json | where name in ["foo"] | get size | math sum"#
);
assert_eq!(actual.out, "5");
}
#[test]
fn where_not_in_table() {
let actual = nu!(
r#"'[{"name": "foo", "size": 3}, {"name": "foo", "size": 2}, {"name": "bar", "size": 4}]' | from json | where name not-in ["foo"] | get size | math sum"#
);
assert_eq!(actual.out, "4");
}
#[test]
fn where_uses_enumerate_index() {
let actual = nu!("[7 8 9 10] | enumerate | where {|el| $el.index < 2 } | to nuon");
assert_eq!(actual.out, "[[index, item]; [0, 7], [1, 8]]");
}
#[cfg(feature = "sqlite")]
#[test]
fn binary_operator_comparisons() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get ints
| first 4
| where z > 4200
| get z.0
"
));
assert_eq!(actual.out, "4253");
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get ints
| first 4
| where z >= 4253
| get z.0
"
));
assert_eq!(actual.out, "4253");
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get ints
| first 4
| where z < 10
| get z.0
"
));
assert_eq!(actual.out, "1");
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get ints
| first 4
| where z <= 1
| get z.0
"
));
assert_eq!(actual.out, "1");
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get ints
| where z != 1
| first
| get z
"
));
assert_eq!(actual.out, "42");
}
#[cfg(feature = "sqlite")]
#[test]
fn contains_operator() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get strings
| where x =~ ell
| length
"
));
assert_eq!(actual.out, "4");
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
"
open sample.db
| get strings
| where x !~ ell
| length
"
));
assert_eq!(actual.out, "2");
}
#[test]
fn fail_on_non_iterator() {
let actual = nu!(r#"{"name": "foo", "size": 3} | where name == "foo""#);
assert!(actual.err.contains("command doesn't support"));
}
// Test that filtering on columns that might be missing/null works
#[test]
fn where_gt_null() {
let actual = nu!("[{foo: 123} {}] | where foo? > 10 | to nuon");
assert_eq!(actual.out, "[[foo]; [123]]");
}