1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 use std::str::from_str;
14 fn test_bool_from_str() {
15 assert_eq!(from_str::<bool>("true"), Some(true));
16 assert_eq!(from_str::<bool>("false"), Some(false));
17 assert_eq!(from_str::<bool>("not even a boolean"), None);
20 fn check_contains_all_substrings(s: &str) {
21 assert!(s.contains(""));
22 for i in range(0, s.len()) {
23 for j in range(i+1, s.len() + 1) {
24 assert!(s.contains(s.slice(i, j)));
30 fn strslice_issue_16589() {
31 assert!("bananas".contains("nana"));
33 // prior to the fix for #16589, x.contains("abcdabcd") returned false
34 // test all substrings for good measure
35 check_contains_all_substrings("012345678901234567890123456789bcdabcdabcd");
39 fn strslice_issue_16878() {
40 assert!(!"1234567ah012345678901ah".contains("hah"));
41 assert!(!"00abc01234567890123456789abc".contains("bcabc"));
46 fn test_strslice_contains() {
47 let x = "There are moments, Jeeves, when one asks oneself, 'Do trousers matter?'";
48 check_contains_all_substrings(x);
52 fn test_rsplitn_char_iterator() {
53 let data = "\nMäry häd ä little lämb\nLittle lämb\n";
55 let mut split: Vec<&str> = data.rsplitn(3, ' ').collect();
57 assert_eq!(split, vec!["\nMäry häd ä", "little", "lämb\nLittle", "lämb\n"]);
59 let mut split: Vec<&str> = data.rsplitn(3, |&: c: char| c == ' ').collect();
61 assert_eq!(split, vec!["\nMäry häd ä", "little", "lämb\nLittle", "lämb\n"]);
64 let mut split: Vec<&str> = data.rsplitn(3, 'ä').collect();
66 assert_eq!(split, vec!["\nMäry häd ", " little l", "mb\nLittle l", "mb\n"]);
68 let mut split: Vec<&str> = data.rsplitn(3, |&: c: char| c == 'ä').collect();
70 assert_eq!(split, vec!["\nMäry häd ", " little l", "mb\nLittle l", "mb\n"]);
74 fn test_split_char_iterator() {
75 let data = "\nMäry häd ä little lämb\nLittle lämb\n";
77 let split: Vec<&str> = data.split(' ').collect();
78 assert_eq!( split, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
80 let mut rsplit: Vec<&str> = data.split(' ').rev().collect();
82 assert_eq!(rsplit, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
84 let split: Vec<&str> = data.split(|&: c: char| c == ' ').collect();
85 assert_eq!( split, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
87 let mut rsplit: Vec<&str> = data.split(|&: c: char| c == ' ').rev().collect();
89 assert_eq!(rsplit, vec!["\nMäry", "häd", "ä", "little", "lämb\nLittle", "lämb\n"]);
92 let split: Vec<&str> = data.split('ä').collect();
93 assert_eq!( split, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
95 let mut rsplit: Vec<&str> = data.split('ä').rev().collect();
97 assert_eq!(rsplit, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
99 let split: Vec<&str> = data.split(|&: c: char| c == 'ä').collect();
100 assert_eq!( split, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
102 let mut rsplit: Vec<&str> = data.split(|&: c: char| c == 'ä').rev().collect();
104 assert_eq!(rsplit, vec!["\nM", "ry h", "d ", " little l", "mb\nLittle l", "mb\n"]);
108 fn test_rev_split_char_iterator_no_trailing() {
109 let data = "\nMäry häd ä little lämb\nLittle lämb\n";
111 let mut split: Vec<&str> = data.split('\n').rev().collect();
113 assert_eq!(split, vec!["", "Märy häd ä little lämb", "Little lämb", ""]);
115 let mut split: Vec<&str> = data.split_terminator('\n').rev().collect();
117 assert_eq!(split, vec!["", "Märy häd ä little lämb", "Little lämb"]);
121 fn test_utf16_code_units() {
122 use unicode::str::Utf16Encoder;
123 assert_eq!(Utf16Encoder::new(vec!['é', '\U0001F4A9'].into_iter()).collect::<Vec<u16>>(),
124 vec![0xE9, 0xD83D, 0xDCA9])