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coreutils/tests/test_expr.rs

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use common::util::*;
#[test]
fn test_simple_arithmetic() {
new_ucmd!().args(&["1", "+", "1"]).run().stdout_is("2\n");
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new_ucmd!().args(&["1", "-", "1"]).run().stdout_is("0\n");
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new_ucmd!().args(&["3", "*", "2"]).run().stdout_is("6\n");
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new_ucmd!().args(&["4", "/", "2"]).run().stdout_is("2\n");
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}
#[test]
fn test_complex_arithmetic() {
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let run = new_ucmd!()
.args(&["9223372036854775807", "+", "9223372036854775807"])
.run();
run.stdout_is("");
run.stderr_is("expr: error: +: Numerical result out of range");
let run = new_ucmd!().args(&["9", "/", "0"]).run();
run.stdout_is("");
run.stderr_is("expr: error: division by zero");
}
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#[test]
fn test_parenthesis() {
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new_ucmd!()
.args(&["(", "1", "+", "1", ")", "*", "2"])
.run()
.stdout_is("4\n");
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}
#[test]
fn test_or() {
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new_ucmd!()
.args(&["0", "|", "foo"])
.run()
.stdout_is("foo\n");
new_ucmd!()
.args(&["foo", "|", "bar"])
.run()
.stdout_is("foo\n");
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}
#[test]
fn test_and() {
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new_ucmd!()
.args(&["foo", "&", "1"])
.run()
.stdout_is("foo\n");
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new_ucmd!().args(&["", "&", "1"]).run().stdout_is("0\n");
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}