coreutils/tests/by-util/test_expr.rs
Coba Weel 7efe33108a Fix issue 5576 (regex matching bug in expr)
Issue 5576 reported a bug in expr, found by the fuzzer. The problem
turns out to be with the regex match operator `:`, which is defined in
POSIX and the GNU manual to match the pattern only when it occurs at
the beginning of the string, i.e., the regex has an implicit `^`
prepended to it. We hadn't been doing that.
2023-11-23 16:26:37 +01:00

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// This file is part of the uutils coreutils package.
//
// For the full copyright and license information, please view the LICENSE
// file that was distributed with this source code.
// spell-checker:ignore αbcdef ; (people) kkos
use crate::common::util::TestScenario;
#[test]
fn test_no_arguments() {
new_ucmd!()
.fails()
.code_is(2)
.usage_error("missing operand");
}
#[test]
fn test_simple_values() {
// null or 0 => EXIT_VALUE == 1
new_ucmd!().args(&[""]).fails().code_is(1).stdout_only("\n");
new_ucmd!()
.args(&["0"])
.fails()
.code_is(1)
.stdout_only("0\n");
new_ucmd!()
.args(&["00"])
.fails()
.code_is(1)
.stdout_only("00\n");
new_ucmd!()
.args(&["-0"])
.fails()
.code_is(1)
.stdout_only("-0\n");
// non-null and non-0 => EXIT_VALUE = 0
new_ucmd!().args(&["1"]).succeeds().stdout_only("1\n");
}
#[test]
fn test_simple_arithmetic() {
new_ucmd!()
.args(&["1", "+", "1"])
.succeeds()
.stdout_only("2\n");
new_ucmd!()
.args(&["1", "-", "1"])
.fails()
.code_is(1)
.stdout_only("0\n");
new_ucmd!()
.args(&["3", "*", "2"])
.succeeds()
.stdout_only("6\n");
new_ucmd!()
.args(&["4", "/", "2"])
.succeeds()
.stdout_only("2\n");
}
#[test]
fn test_complex_arithmetic() {
new_ucmd!()
.args(&["9223372036854775807", "+", "9223372036854775807"])
.succeeds()
.stdout_only("18446744073709551614\n");
new_ucmd!()
.args(&[
"92233720368547758076549841651981984981498415651",
"%",
"922337203685",
])
.succeeds()
.stdout_only("533691697086\n");
new_ucmd!()
.args(&[
"92233720368547758076549841651981984981498415651",
"*",
"922337203685",
])
.succeeds()
.stdout_only("85070591730190566808700855121818604965830915152801178873935\n");
new_ucmd!()
.args(&[
"92233720368547758076549841651981984981498415651",
"-",
"922337203685",
])
.succeeds()
.stdout_only("92233720368547758076549841651981984059161211966\n");
new_ucmd!()
.args(&["9", "/", "0"])
.fails()
.stderr_only("expr: division by zero\n");
}
#[test]
fn test_parenthesis() {
new_ucmd!()
.args(&["(", "1", "+", "1", ")", "*", "2"])
.succeeds()
.stdout_only("4\n");
new_ucmd!()
.args(&["1", "(", ")"])
.fails()
.code_is(2)
.stderr_only("expr: syntax error: unexpected argument '('\n");
}
#[test]
fn test_or() {
new_ucmd!()
.args(&["0", "|", "foo"])
.succeeds()
.stdout_only("foo\n");
new_ucmd!()
.args(&["foo", "|", "bar"])
.succeeds()
.stdout_only("foo\n");
new_ucmd!()
.args(&["14", "|", "1"])
.succeeds()
.stdout_only("14\n");
new_ucmd!()
.args(&["-14", "|", "1"])
.succeeds()
.stdout_only("-14\n");
new_ucmd!()
.args(&["1", "|", "a", "/", "5"])
.succeeds()
.stdout_only("1\n");
new_ucmd!()
.args(&["foo", "|", "a", "/", "5"])
.succeeds()
.stdout_only("foo\n");
new_ucmd!()
.args(&["0", "|", "10", "/", "5"])
.succeeds()
.stdout_only("2\n");
new_ucmd!()
.args(&["12", "|", "9a", "+", "1"])
.succeeds()
.stdout_only("12\n");
new_ucmd!().args(&["", "|", ""]).run().stdout_only("0\n");
new_ucmd!().args(&["", "|", "0"]).run().stdout_only("0\n");
new_ucmd!().args(&["", "|", "00"]).run().stdout_only("0\n");
new_ucmd!().args(&["", "|", "-0"]).run().stdout_only("0\n");
}
#[test]
fn test_and() {
new_ucmd!()
.args(&["foo", "&", "1"])
.succeeds()
.stdout_only("foo\n");
new_ucmd!()
.args(&["14", "&", "1"])
.succeeds()
.stdout_only("14\n");
new_ucmd!()
.args(&["-14", "&", "1"])
.succeeds()
.stdout_only("-14\n");
new_ucmd!()
.args(&["-1", "&", "10", "/", "5"])
.succeeds()
.stdout_only("-1\n");
new_ucmd!()
.args(&["0", "&", "a", "/", "5"])
.run()
.stdout_only("0\n");
new_ucmd!()
.args(&["", "&", "a", "/", "5"])
.run()
.stdout_only("0\n");
new_ucmd!().args(&["", "&", "1"]).run().stdout_only("0\n");
new_ucmd!().args(&["", "&", ""]).run().stdout_only("0\n");
}
#[test]
fn test_index() {
new_ucmd!()
.args(&["index", "αbcdef", "x"])
.fails()
.code_is(1)
.stdout_only("0\n");
new_ucmd!()
.args(&["index", "αbcdef", "α"])
.succeeds()
.stdout_only("1\n");
new_ucmd!()
.args(&["index", "αbc_δef", "δ"])
.succeeds()
.stdout_only("5\n");
new_ucmd!()
.args(&["index", "αbc_δef", "δf"])
.succeeds()
.stdout_only("5\n");
new_ucmd!()
.args(&["index", "αbcdef", "fb"])
.succeeds()
.stdout_only("2\n");
new_ucmd!()
.args(&["index", "αbcdef", "f"])
.succeeds()
.stdout_only("6\n");
new_ucmd!()
.args(&["index", "αbcdef_f", "f"])
.succeeds()
.stdout_only("6\n");
new_ucmd!()
.args(&["αbcdef", "index", "α"])
.fails()
.code_is(2)
.stderr_only("expr: syntax error: unexpected argument 'index'\n");
}
#[test]
fn test_length_fail() {
new_ucmd!().args(&["length", "αbcdef", "1"]).fails();
}
#[test]
fn test_length() {
new_ucmd!()
.args(&["length", "abcdef"])
.succeeds()
.stdout_only("6\n");
new_ucmd!()
.args(&["abcdef", "length"])
.fails()
.code_is(2)
.stderr_only("expr: syntax error: unexpected argument 'length'\n");
}
#[test]
fn test_length_mb() {
new_ucmd!()
.args(&["length", "αbcdef"])
.succeeds()
.stdout_only("6\n");
}
#[test]
fn test_regex() {
// FixME: [2022-12-19; rivy] test disabled as it currently fails due to 'oniguruma' bug (see GH:kkos/oniguruma/issues/279)
// new_ucmd!()
// .args(&["a^b", ":", "a^b"])
// .succeeds()
// .stdout_only("3\n");
new_ucmd!()
.args(&["a^b", ":", "a\\^b"])
.succeeds()
.stdout_only("3\n");
new_ucmd!()
.args(&["a$b", ":", "a\\$b"])
.succeeds()
.stdout_only("3\n");
new_ucmd!()
.args(&["-5", ":", "-\\{0,1\\}[0-9]*$"])
.succeeds()
.stdout_only("2\n");
new_ucmd!()
.args(&["abc", ":", "bc"])
.fails()
.stdout_only("0\n");
}
#[test]
fn test_substr() {
new_ucmd!()
.args(&["substr", "abc", "1", "1"])
.succeeds()
.stdout_only("a\n");
new_ucmd!()
.args(&["abc", "substr", "1", "1"])
.fails()
.code_is(2)
.stderr_only("expr: syntax error: unexpected argument 'substr'\n");
}
#[test]
fn test_invalid_substr() {
new_ucmd!()
.args(&["substr", "abc", "0", "1"])
.fails()
.code_is(1)
.stdout_only("\n");
new_ucmd!()
.args(&["substr", "abc", &(std::usize::MAX.to_string() + "0"), "1"])
.fails()
.code_is(1)
.stdout_only("\n");
new_ucmd!()
.args(&["substr", "abc", "0", &(std::usize::MAX.to_string() + "0")])
.fails()
.code_is(1)
.stdout_only("\n");
}
#[test]
fn test_escape() {
new_ucmd!().args(&["+", "1"]).succeeds().stdout_only("1\n");
new_ucmd!()
.args(&["1", "+", "+", "1"])
.succeeds()
.stdout_only("2\n");
new_ucmd!()
.args(&["2", "*", "+", "3"])
.succeeds()
.stdout_only("6\n");
new_ucmd!()
.args(&["(", "1", ")", "+", "1"])
.succeeds()
.stdout_only("2\n");
}
#[test]
fn test_invalid_syntax() {
let invalid_syntaxes = [["12", "12"], ["12", "|"], ["|", "12"]];
for invalid_syntax in invalid_syntaxes {
new_ucmd!()
.args(&invalid_syntax)
.fails()
.code_is(2)
.stderr_contains("syntax error");
}
}