nushell/crates/nu-command/tests/format_conversions/nuon.rs
Antoine Stevan 758351c732
FEATURE: add --raw. --tabs and --indent to to nuon as in to json (#8366)
Should close #7255.

# Description
**TL;DR**: this PR adds `--indent <int>`, `--tabs <int>` and `--raw` to
control a bit more the `string` output of `to nuon`, as done in `to
json` already, the goal being to promote the `NUON` format through easy
to read and formatted output `.nuon` files 😋

### outside of `crates/nu-command/src/formats/to/nuon.rs`
as the signature of `value_to_string` has changed, the single call to it
outside of its module definition has been changed to use default values
=> `value_to_string(&value, Span::unknown(), 0, &None)` in
`crates/nu-command/src/filters/uniq.rs`

### changes to `ToNuon` in `crates/nu-command/src/formats/to/nuon.rs`
- the signature now features `--raw`, `--indent <int>` and `--tabs
<int>`
- the structure of the `run` method is inspired from the one in `to
json`
  - we get the values of the arguments
  - we convert the input to a usable `Value`
- depending on whether the user raised `--raw`, `--indent` or `--tabs`,
we call the conversion to `string` with different values of the
indentation, starting at depth 0
- finally, we return `Ok` or a `ShellError::CantConvert` depending on
the conversion result
- some tool functions
- `get_true_indentation` gives the full indentation => `indent` repeated
`depth` times
- `get_true_separators` gives the line and field separators => a `("\n",
"")` when using some formatting or `("", " ")` when converting as pure
string on a single line

the meat of `nuon.rs` is now the `value_to_string` recursive function:
- takes the depth and the indent string
- adds correct newlines, space separators and indentation to the output
- calls itself with the same indent string but `depth + 1` to increase
the indentation by one level
- i used the `nl`, `idt`, `idt_po` (**i**n**d**en**t** **p**lus **o**ne)
and `idt_pt` (**i**n**d**en**t** **p**lus **t**wo) to make the
`format!`s easier to read

# User-Facing Changes
users can now
- control the amount and nature of NUON string output indentation with
  - `--indent <number of " " per level>`
  - `--tabs <number of "\t" per level>` 
- use the previous behaviour of `to nuon` with the `--raw` option
- have new examples with `help to nuon`

> **Note**
> the priority order of the options is the following
> 1. `--raw`
> 2. `--tabs`
> 3. `--indent`
>
> the default is `--indent 2`

# Tests + Formatting
### new tests
- tests involving the string output of `to nuon`, i.e. tests not of the
form `... | to nuon | from nuon ...`, now use the `to nuon --raw`
command => this is the smallest change to have the tests pass, as the
new `to nuon --raw` is equivalent to the old `to nuon`
- in `crates/nu-command/src/formats/to/nuon.rs`, the previous example
has been replaced with three examples
  - `[1 2 3] | to nuon` to show the default behaviour
  - `[1 2 3] | to nuon --raw` to show the not-formatted output
- a more complex example with `{date: 2000-01-01, data: [1 [2 3] 4.56]}
| to nuon`
  - the result values have been defined and the `examples` tests pass
 
### dev
- 🟢 `cargo fmt --all`
- 🟢 `cargo clippy --workspace -- -D warnings -D
clippy::unwrap_used -A clippy::needless_collect`
- 🟢 `cargo test --workspace` ~~passes but without
`to_nuon_errs_on_closure`~~ fixed in
0b4fad7eff

# After Submitting
the `to nuon` page would have to be regenerated at some point due to the
new tests
2023-03-20 15:47:18 -05:00

542 lines
12 KiB
Rust

use nu_test_support::{nu, pipeline};
use proptest::prelude::*;
#[test]
fn to_nuon_correct_compaction() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open appveyor.yml
| to nuon
| str length
| $in > 500
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_list_of_numbers() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
[1, 2, 3, 4]
| to nuon
| from nuon
| $in == [1, 2, 3, 4]
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_list_of_strings() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
[abc, xyz, def]
| to nuon
| from nuon
| $in == [abc, xyz, def]
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_table() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
[[my, columns]; [abc, xyz], [def, ijk]]
| to nuon
| from nuon
| $in == [[my, columns]; [abc, xyz], [def, ijk]]
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_bool() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
false
| to nuon
| from nuon
"#
));
assert_eq!(actual.out, "false");
}
#[test]
fn to_nuon_escaping() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"hello\"world"
| to nuon
| from nuon
"#
));
assert_eq!(actual.out, "hello\"world");
}
#[test]
fn to_nuon_escaping2() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"hello\\world"
| to nuon
| from nuon
"#
));
assert_eq!(actual.out, "hello\\world");
}
#[test]
fn to_nuon_escaping3() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
["hello\\world"]
| to nuon
| from nuon
| $in == [hello\world]
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_escaping4() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
["hello\"world"]
| to nuon
| from nuon
| $in == ["hello\"world"]
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_escaping5() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
{s: "hello\"world"}
| to nuon
| from nuon
| $in == {s: "hello\"world"}
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_negative_int() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
-1
| to nuon
| from nuon
"#
));
assert_eq!(actual.out, "-1");
}
#[test]
fn to_nuon_records() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
{name: "foo bar", age: 100, height: 10}
| to nuon
| from nuon
| $in == {name: "foo bar", age: 100, height: 10}
"#
));
assert_eq!(actual.out, "true");
}
#[test]
fn to_nuon_range() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
1..42
| to nuon
"#
));
assert_eq!(actual.out, "1..42");
}
#[test]
fn from_nuon_range() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"1..42"
| from nuon
| describe
"#
));
assert_eq!(actual.out, "range");
}
#[test]
fn to_nuon_filesize() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
1kib
| to nuon
"#
));
assert_eq!(actual.out, "1024b");
}
#[test]
fn from_nuon_filesize() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"1024b"
| from nuon
| describe
"#
));
assert_eq!(actual.out, "filesize");
}
#[test]
fn to_nuon_duration() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
1min
| to nuon
"#
));
assert_eq!(actual.out, "60000000000ns");
}
#[test]
fn from_nuon_duration() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"60000000000ns"
| from nuon
| describe
"#
));
assert_eq!(actual.out, "duration");
}
#[test]
fn to_nuon_datetime() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
2019-05-10
| to nuon
"#
));
assert_eq!(actual.out, "2019-05-10T00:00:00+00:00");
}
#[test]
fn from_nuon_datetime() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"2019-05-10T00:00:00+00:00"
| from nuon
| describe
"#
));
assert_eq!(actual.out, "date");
}
#[test]
fn to_nuon_errs_on_closure() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
{|| to nuon}
| to nuon
"#
));
assert!(actual.err.contains("can't convert closure to NUON"));
}
#[test]
fn binary_to() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
0x[ab cd ef] | to nuon
"#
));
assert_eq!(actual.out, "0x[ABCDEF]");
}
#[test]
fn binary_roundtrip() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
"0x[1f ff]" | from nuon | to nuon
"#
));
assert_eq!(actual.out, "0x[1FFF]");
}
#[test]
fn read_binary_data() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open sample.nuon | get 5.3
"#
));
assert_eq!(actual.out, "31")
}
#[test]
fn read_record() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open sample.nuon | get 4.name
"#
));
assert_eq!(actual.out, "Bobby")
}
#[test]
fn read_bool() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
open sample.nuon | get 3 | $in == true
"#
));
assert_eq!(actual.out, "true")
}
#[test]
fn float_doesnt_become_int() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
1.0 | to nuon
"#
));
assert_eq!(actual.out, "1.0")
}
#[test]
fn float_inf_parsed_properly() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
inf | to nuon
"#
));
assert_eq!(actual.out, "inf")
}
#[test]
fn float_neg_inf_parsed_properly() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
-inf | to nuon
"#
));
assert_eq!(actual.out, "-inf")
}
#[test]
fn float_nan_parsed_properly() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
NaN | to nuon
"#
));
assert_eq!(actual.out, "NaN")
}
#[test]
fn to_nuon_converts_columns_with_spaces() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
let test = [[a, b, "c d"]; [1 2 3] [4 5 6]]; $test | to nuon | from nuon
"#
));
assert!(actual.err.is_empty());
}
#[test]
fn to_nuon_quotes_empty_string() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
let test = ""; $test | to nuon
"#
));
assert!(actual.err.is_empty());
assert_eq!(actual.out, r#""""#)
}
#[test]
fn to_nuon_quotes_empty_string_in_list() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
let test = [""]; $test | to nuon | from nuon | $in == [""]
"#
));
assert!(actual.err.is_empty());
assert_eq!(actual.out, "true")
}
#[test]
fn to_nuon_quotes_empty_string_in_table() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
let test = [[a, b]; ['', la] [le lu]]; $test | to nuon | from nuon
"#
));
assert!(actual.err.is_empty());
}
#[test]
fn does_not_quote_strings_unnecessarily() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
let test = [["a", "b", "c d"]; [1 2 3] [4 5 6]]; $test | to nuon
"#
));
assert_eq!(actual.out, "[[a, b, \"c d\"]; [1, 2, 3], [4, 5, 6]]");
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
let a = {"ro name": "sam" rank: 10}; $a | to nuon
"#
));
assert_eq!(actual.out, "{\"ro name\": sam, rank: 10}");
}
#[test]
fn quotes_some_strings_necessarily() {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
r#"
['true','false','null',
'NaN','NAN','nan','+nan','-nan',
'inf','+inf','-inf','INF',
'Infinity','+Infinity','-Infinity','INFINITY',
'+19.99','-19.99', '19.99b',
'19.99kb','19.99mb','19.99gb','19.99tb','19.99pb','19.99eb','19.99zb',
'19.99kib','19.99mib','19.99gib','19.99tib','19.99pib','19.99eib','19.99zib',
'19ns', '19us', '19ms', '19sec', '19min', '19hr', '19day', '19wk',
'-11.0..-15.0', '11.0..-15.0', '-11.0..15.0',
'-11.0..<-15.0', '11.0..<-15.0', '-11.0..<15.0',
'-11.0..', '11.0..', '..15.0', '..-15.0', '..<15.0', '..<-15.0',
'2000-01-01', '2022-02-02T14:30:00', '2022-02-02T14:30:00+05:00',
',',''
'&&'
] | to nuon | from nuon | describe
"#
));
assert_eq!(actual.out, "list<string>");
}
#[test]
fn read_code_should_fail_rather_than_panic() {
let actual = nu!(cwd: "tests/fixtures/formats", pipeline(
r#"open code.nu | from nuon"#
));
assert!(actual.err.contains("error when parsing"))
}
proptest! {
#[test]
fn to_nuon_from_nuon(c: char) {
if c != '\0' && c!='\r' {
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
format!(r#"
{{"prop{c}test": "sam"}} | to nuon | from nuon;
[ [ "prop{c}test" ]; [ 'test' ] ] | to nuon | from nuon;
[ [ "{c}" ]; [ 'test' ] ] | to nuon | from nuon;
{{"{c}": "sam"}} | to nuon | from nuon;
"#).as_ref()
));
assert!(actual.err.is_empty() || actual.err.contains("Unexpected end of code") || actual.err.contains("only strings can be keys") || actual.err.contains("unbalanced { and }"));
// The second is for weird escapes due to backslashes
// The third is for chars like '0'
}
}
#[test]
fn to_nuon_from_nuon_string(s: String) {
if s != "\\0" && !s.is_empty() && !s.contains('\\') && !s.contains('"'){
let actual = nu!(
cwd: "tests/fixtures/formats", pipeline(
format!(r#"
{{"prop{s}test": "sam"}} | to nuon | from nuon;
[ [ "prop{s}test" ]; [ 'test' ] ] | to nuon | from nuon;
[ [ "{s}" ]; [ 'test' ] ] | to nuon | from nuon;
{{"{s}": "sam"}} | to nuon | from nuon;
"#).as_ref()
));
assert!(actual.err.is_empty() || actual.err.contains("only strings can be keys") || actual.err.contains("unknown command"));
// TODO: fix parser error for "unknown command" when '=$' is the name
}
}
}