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expr: add basic tests

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This commit is contained in:
Michael Gehring 2015-12-22 14:10:43 +01:00
parent 519802bdf9
commit d4e0ee0cde
2 changed files with 55 additions and 0 deletions
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1
Makefile
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@ -125,6 +125,7 @@ TEST_PROGS := \
dirname \
echo \
env \
expr \
factor \
false \
fold \

54
tests/expr.rs Normal file
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@ -0,0 +1,54 @@
#[macro_use]
mod common;
use common::util::*;
static UTIL_NAME: &'static str = "expr";
#[test]
fn test_simple_arithmetic() {
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["1", "+", "1"]).run().stdout;
assert_eq!(out, "2\n");
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["1", "-", "1"]).run().stdout;
assert_eq!(out, "0\n");
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["3", "*", "2"]).run().stdout;
assert_eq!(out, "6\n");
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["4", "/", "2"]).run().stdout;
assert_eq!(out, "2\n");
}
#[test]
fn test_parenthesis() {
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["(", "1", "+", "1", ")", "*", "2"]).run().stdout;
assert_eq!(out, "4\n");
}
#[test]
fn test_or() {
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["0", "|", "foo"]).run().stdout;
assert_eq!(out, "foo\n");
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["foo", "|", "bar"]).run().stdout;
assert_eq!(out, "foo\n");
}
#[test]
fn test_and() {
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["foo", "&", "1"]).run().stdout;
assert_eq!(out, "foo\n");
let (_, mut ucmd) = testing(UTIL_NAME);
let out = ucmd.args(&["", "&", "1"]).run().stdout;
assert_eq!(out, "0\n");
}