nushell/crates/nu-command/tests/commands/sort_by.rs

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2019-12-17 19:54:39 +01:00
use nu_test_support::{nu, pipeline};
#[test]
fn by_column() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open cargo_sample.toml --raw
| lines
| skip 1
| first 4
2020-05-24 08:41:30 +02:00
| split column "="
| sort-by column1
| skip 1
| first
| get column1
| str trim
"#
));
assert_eq!(actual.out, "description");
}
#[test]
fn by_invalid_column() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open cargo_sample.toml --raw
| lines
| skip 1
| first 4
| split column "="
| sort-by ColumnThatDoesNotExist
| skip 1
| first
| get column1
| str trim
"#
));
2022-02-22 17:32:29 +01:00
assert!(actual.err.contains("Cannot find column"));
assert!(actual.err.contains("value originates here"));
}
Support passing an empty list to sort, uniq, sort-by, and uniq-by (issue #5957) (#8669) # Description Currently, all four of these commands return a (rather-confusing) spanless error when passed an empty list: ``` > [] | sort Error: × no values to work with help: no values to work with ``` This PR changes these commands to always output `[]` if the input is `[]`. ``` > [] | sort ╭────────────╮ │ empty list │ ╰────────────╯ > [] | uniq-by foo ╭────────────╮ │ empty list │ ╰────────────╯ ``` I'm not sure what the original logic was here, but in the case of `sort` and `uniq`, I think the current behavior is straightforwardly wrong. `sort-by` and `uniq-by` are a bit more complicated, since they currently try to perform some validation that the specified column name is present in the input (see #8667 for problems with this validation, where a possible outcome is removing the validation entirely). When passed `[]`, it's not possible to do any validation because there are no records. This opens up the possibility for situations like the following: ``` > [[foo]; [5] [6]] | where foo < 3 | sort-by bar ╭────────────╮ │ empty list │ ╰────────────╯ ``` I think there's a strong argument that `[]` is the best output for these commands as well, since it makes pipelines like `$table | filter $condition | sort-by $column` more predictable. Currently, this pipeline will throw an error if `filter` evaluates to `[]`, but work fine otherwise. This makes it difficult to write reliable code, especially since users are not likely to encounter the `filter -> []` case in testing (issue #5957). The only workaround is to insert manual checks for an empty result. IMO, this is significantly worse than the "you can typo a column name without getting an error" problem shown above. Other commands that take column arguments (`get`, `select`, `rename`, etc) already have `[] -> []`, so there's existing precedent for this behavior. The core question here is "what columns does `[]` have"? The current behavior of `sort-by` is "no columns", while the current behavior of `select` is "all possible columns". Both answers lead to accepting some likely-buggy code without throwing on error, but in order to do better here we would need something like `Value::Table` that tracks columns on empty tables. If other people disagree with this logic, I'm happy to split out the `sort-by` and `uniq-by` changes into another PR. # User-Facing Changes `sort`, `uniq`, `sort-by`, and `uniq-by` now return `[]` instead of throwing an error when input is `[]`. # 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. The existing behavior was not documented, and the new behavior is what you would expect by default, so I don't think we need to update documentation. --------- Co-authored-by: Reilly Wood <reilly.wood@icloud.com>
2023-03-30 04:55:38 +02:00
#[test]
fn sort_by_empty() {
let actual = nu!("[] | sort-by foo | to nuon");
assert_eq!(actual.out, "[]");
}
#[test]
fn ls_sort_by_name_sensitive() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
open sample-ls-output.json
| sort-by name
| select name
| to json --raw
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
));
let json_output = r#"[{"name": "B.txt"},{"name": "C"},{"name": "a.txt"}]"#;
assert_eq!(actual.out, json_output);
}
#[test]
fn ls_sort_by_name_insensitive() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
open sample-ls-output.json
| sort-by -i name
| select name
| to json --raw
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
));
let json_output = r#"[{"name": "a.txt"},{"name": "B.txt"},{"name": "C"}]"#;
assert_eq!(actual.out, json_output);
}
#[test]
fn ls_sort_by_type_name_sensitive() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
open sample-ls-output.json
| sort-by type name
| select name type
| to json --raw
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
));
let json_output = r#"[{"name": "C","type": "Dir"},{"name": "B.txt","type": "File"},{"name": "a.txt","type": "File"}]"#;
assert_eq!(actual.out, json_output);
}
#[test]
fn ls_sort_by_type_name_insensitive() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
open sample-ls-output.json
| sort-by -i type name
| select name type
| to json --raw
Fix: remove unnecessary `r#"..."#` (#8670) (#9764) <!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR is related to **Tests: clean up unnecessary use of cwd, pipeline(), etc. [#8670](https://github.com/nushell/nushell/issues/8670)** - Removed the `r#"..."#` raw string literal syntax, which is unnecessary when there are no special characters that need quoting from the tests that use the `nu!` macro. - `cwd:` and `pipeline()` has not changed # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-21 17:32:37 +02:00
"
));
let json_output = r#"[{"name": "C","type": "Dir"},{"name": "a.txt","type": "File"},{"name": "B.txt","type": "File"}]"#;
assert_eq!(actual.out, json_output);
}
#[test]
fn no_column_specified_fails() {
let actual = nu!("[2 0 1] | sort-by");
assert!(actual.err.contains("missing parameter"));
}
#[test]
fn fail_on_non_iterator() {
let actual = nu!("1 | sort-by");
Input output checking (#9680) # Description This PR tights input/output type-checking a bit more. There are a lot of commands that don't have correct input/output types, so part of the effort is updating them. This PR now contains updates to commands that had wrong input/output signatures. It doesn't add examples for these new signatures, but that can be follow-up work. # User-Facing Changes BREAKING CHANGE BREAKING CHANGE This work enforces many more checks on pipeline type correctness than previous nushell versions. This strictness may uncover incompatibilities in existing scripts or shortcomings in the type information for internal commands. # 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 -A clippy::result_large_err` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # 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. -->
2023-07-14 05:20:35 +02:00
assert!(actual.err.contains("command doesn't support"));
}