forked from extern/nushell
fb72da0e82
# Description
this pr condenses `MutBuiltinVar`, `LetBuiltinVar` and `ConstBuiltinVar`
into one error:
```nu
Error: nu::parser::name_is_builtin_var
× `in` used as variable name.
╭─[entry #69:1:1]
1 │ let in = 420
· ─┬
· ╰── already a builtin variable
╰────
help: 'in' is the name of a builtin Nushell variable and cannot be used
as a variable name
```
it also fixes this case which was previously not handled
```nu
let $nu = 420 # this variable would have been 'lost'
```
174 lines
2.9 KiB
Rust
174 lines
2.9 KiB
Rust
use nu_test_support::{nu, pipeline};
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#[test]
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fn mut_variable() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut x = 3; $x = $x + 1; $x
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"#
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));
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assert_eq!(actual.out, "4");
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}
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#[test]
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fn mut_name_builtin_var() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut in = 3
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"#
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));
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assert!(actual
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.err
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.contains("'in' is the name of a builtin Nushell variable"));
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}
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#[test]
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fn mut_name_builtin_var_with_dollar() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut $env = 3
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"#
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));
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assert!(actual
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.err
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.contains("'env' is the name of a builtin Nushell variable"))
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}
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#[test]
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fn mut_variable_in_loop() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut x = 1; for i in 1..10 { $x = $x + $i}; $x
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"#
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));
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assert_eq!(actual.out, "56");
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}
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#[test]
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fn capture_of_mutable_var() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut x = 123; {|| $x }
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"#
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));
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assert!(actual.err.contains("capture of mutable variable"));
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}
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#[test]
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fn mut_add_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 3; $y += 2; $y
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"#
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));
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assert_eq!(actual.out, "5");
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}
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#[test]
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fn mut_minus_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 3; $y -= 2; $y
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"#
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));
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assert_eq!(actual.out, "1");
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}
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#[test]
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fn mut_multiply_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 3; $y *= 2; $y
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"#
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));
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assert_eq!(actual.out, "6");
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}
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#[test]
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fn mut_divide_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = 8; $y /= 2; $y
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"#
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));
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assert_eq!(actual.out, "4");
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}
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#[test]
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fn mut_path_insert() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut y = {abc: 123}; $y.abc = 456; $y.abc
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"#
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));
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assert_eq!(actual.out, "456");
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}
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#[test]
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fn mut_path_insert_list() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [0 1 2]; $a.3 = 3; $a | to nuon
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"#
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));
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assert_eq!(actual.out, "[0, 1, 2, 3]");
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}
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#[test]
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fn mut_path_upsert() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = {b:[{c:1}]}; $a.b.0.d = 11; $a.b.0.d
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"#
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));
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assert_eq!(actual.out, "11");
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}
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#[test]
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fn mut_path_upsert_list() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = [[[3] 2] 1]; $a.0.0.1 = 0; $a.0.2 = 0; $a.2 = 0; $a | to nuon
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"#
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));
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assert_eq!(actual.out, "[[[3, 0], 2, 0], 1, 0]");
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}
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#[test]
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fn mut_path_operator_assign() {
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let actual = nu!(
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cwd: ".", pipeline(
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r#"
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mut a = {b:1}; $a.b += 3; $a.b -= 2; $a.b *= 10; $a.b /= 4; $a.b
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"#
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));
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assert_eq!(actual.out, "5");
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}
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