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mirror of https://github.com/casey/just.git synced 2024-11-22 18:34:06 +03:00
just/tests/logical_operators.rs
2024-11-01 00:54:46 +00:00

84 lines
1.9 KiB
Rust

use super::*;
#[track_caller]
fn evaluate(expression: &str, expected: &str) {
Test::new()
.justfile(format!("x := {expression}"))
.env("JUST_UNSTABLE", "1")
.args(["--evaluate", "x"])
.stdout(expected)
.run();
}
#[test]
fn logical_operators_are_unstable() {
Test::new()
.justfile("x := 'foo' && 'bar'")
.args(["--evaluate", "x"])
.stderr_regex(r"error: The logical operators `&&` and `\|\|` are currently unstable. .*")
.status(EXIT_FAILURE)
.run();
Test::new()
.justfile("x := 'foo' || 'bar'")
.args(["--evaluate", "x"])
.stderr_regex(r"error: The logical operators `&&` and `\|\|` are currently unstable. .*")
.status(EXIT_FAILURE)
.run();
}
#[test]
fn and_returns_empty_string_if_lhs_is_empty() {
evaluate("'' && 'hello'", "");
}
#[test]
fn and_returns_rhs_if_lhs_is_non_empty() {
evaluate("'hello' && 'goodbye'", "goodbye");
}
#[test]
fn and_has_lower_precedence_than_plus() {
evaluate("'' && 'goodbye' + 'foo'", "");
evaluate("'foo' + 'hello' && 'goodbye'", "goodbye");
evaluate("'foo' + '' && 'goodbye'", "goodbye");
evaluate("'foo' + 'hello' && 'goodbye' + 'bar'", "goodbyebar");
}
#[test]
fn or_returns_rhs_if_lhs_is_empty() {
evaluate("'' || 'hello'", "hello");
}
#[test]
fn or_returns_lhs_if_lhs_is_non_empty() {
evaluate("'hello' || 'goodbye'", "hello");
}
#[test]
fn or_has_lower_precedence_than_plus() {
evaluate("'' || 'goodbye' + 'foo'", "goodbyefoo");
evaluate("'foo' + 'hello' || 'goodbye'", "foohello");
evaluate("'foo' + '' || 'goodbye'", "foo");
evaluate("'foo' + 'hello' || 'goodbye' + 'bar'", "foohello");
}
#[test]
fn and_has_higher_precedence_than_or() {
evaluate("('' && 'foo') || 'bar'", "bar");
evaluate("'' && 'foo' || 'bar'", "bar");
evaluate("'a' && 'b' || 'c'", "b");
}
#[test]
fn nesting() {
evaluate("'' || '' || '' || '' || 'foo'", "foo");
evaluate("'foo' && 'foo' && 'foo' && 'foo' && 'bar'", "bar");
}