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coreutils/tests/by-util/test_expr.rs

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use crate::common::util::*;
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#[test]
fn test_simple_arithmetic() {
new_ucmd!()
.args(&["1", "+", "1"])
.succeeds()
.stdout_only("2\n");
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new_ucmd!()
.args(&["1", "-", "1"])
.fails()
.status_code(1)
.stdout_only("0\n");
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new_ucmd!()
.args(&["3", "*", "2"])
.succeeds()
.stdout_only("6\n");
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new_ucmd!()
.args(&["4", "/", "2"])
.succeeds()
.stdout_only("2\n");
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}
#[test]
fn test_complex_arithmetic() {
new_ucmd!()
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.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");
}
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#[test]
fn test_parenthesis() {
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new_ucmd!()
.args(&["(", "1", "+", "1", ")", "*", "2"])
.succeeds()
.stdout_only("4\n");
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}
#[test]
fn test_or() {
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new_ucmd!()
.args(&["0", "|", "foo"])
.succeeds()
.stdout_only("foo\n");
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new_ucmd!()
.args(&["foo", "|", "bar"])
.succeeds()
.stdout_only("foo\n");
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}
#[test]
fn test_and() {
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new_ucmd!()
.args(&["foo", "&", "1"])
.succeeds()
.stdout_only("foo\n");
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new_ucmd!().args(&["", "&", "1"]).run().stdout_is("0\n");
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}
#[test]
fn test_substr() {
new_ucmd!()
.args(&["substr", "abc", "1", "1"])
.succeeds()
.stdout_only("a\n");
}
#[test]
fn test_invalid_substr() {
new_ucmd!()
.args(&["substr", "abc", "0", "1"])
.fails()
.status_code(1)
.stdout_only("\n");
new_ucmd!()
.args(&["substr", "abc", &(std::usize::MAX.to_string() + "0"), "1"])
.fails()
.status_code(1)
.stdout_only("\n");
new_ucmd!()
.args(&["substr", "abc", "0", &(std::usize::MAX.to_string() + "0")])
.fails()
.status_code(1)
.stdout_only("\n");
}