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expr: add tests for precise error messages

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ALXD 2023-11-20 14:29:06 +01:00 • committed by Sylvestre Ledru
parent d2ede92736
commit 8b650a7a9b
1 changed files with 14 additions and 0 deletions
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14
tests/by-util/test_expr.rs
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@ -6,6 +6,14 @@
use crate::common::util::TestScenario;
#[test]
fn test_no_arguments() {
new_ucmd!()
.fails()
.code_is(2)
.stderr_only("expr: missing operand\n");
}
#[test]
fn test_simple_values() {
// null or 0 => EXIT_VALUE == 1
@ -275,6 +283,12 @@ fn test_substr() {
#[test]
fn test_invalid_substr() {
new_ucmd!()
.args(&["56", "substr"])
.fails()
.code_is(2)
.stderr_only("expr: syntax error: unexpected argument 'substr'\n");
new_ucmd!()
.args(&["substr", "abc", "0", "1"])
.fails()