{"id":45451,"date":"2024-01-08T16:24:43","date_gmt":"2024-02-03T19:32:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45451-2\/"},"modified":"2024-05-04T17:24:58","modified_gmt":"2024-05-04T09:24:58","slug":"45451-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45451-2\/","title":{"rendered":""},"content":{"rendered":"<p>\u4ee5\u4e0b\u30da\u30fc\u30b8\u306e\u8ee2\u8f09\u306b\u306a\u308a\u307e\u3059\u3002\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>Rust\u30920\u304b\u3089\u5b66\u3093\u3067\u307f\u305f\u301cPart.1\u301c struct, impl, \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u57fa\u790e\u7de8\uff08TDD Boot Camp \u8ab2\u984c1\u300c\u9589\u533a\u9593\u300d\uff09<\/p>\n<hr \/>\n<p>TDDBC\u306e\u8ab2\u984c\u3092Rust\u3067\u5b9f\u65bd\u3057\u3001\u8a00\u8a9e\u4ed5\u69d8\u3092\u5b66\u3093\u3067\u3044\u3053\u3046\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">TDD Boot Camp(TDDBC) &#8211; TDDBC\u4ed9\u53f003\/\u8ab2\u984c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">TDD Boot Camp(TDDBC) &#8211; TDDBC\u4ed9\u53f003\/\u8ab2\u984c\u7528\u8a9e\u96c6<\/ul>\n<hr \/>\n<p>[\u3072\u3068\u3053\u3068\u3067\u8a00\u3046\u3068\u3053\u3093\u306a\u8a18\u4e8b]<\/p>\n<p>\u4ee5\u4e0b2\u70b9\u3092\u5b66\u3076\u4e8b\u304c\u3067\u304d\u307e\u3059<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4ed6\u306e\u8a00\u8a9e\u3067\u3044\u3046Class\u7684\u306a\u3082\u306e\u3092\u5b9f\u73fe\u3059\u308b\u65b9\u6cd5\uff08struct, impl\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Rust\u3067\u306eTest Code\u30fbUnit Test\u306e\u57fa\u790e<\/ul>\n<hr \/>\n<p>[\u3053\u3093\u306a\u3072\u3068\u306b\u304a\u3059\u3059\u3081]<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u300c\u3053\u308c\u304b\u3089Rust\u3092\u52c9\u5f37\u3057\u3066\u3044\u304d\u307e\u3059\uff01\u300d\u3068\u3044\u3046\u65b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u300cRust\u3063\u3066class\u306a\u3044\u306e\uff1f\uff01\u300d\u3068\u9a5a\u3044\u3066\u3044\u308b\u65b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u521d\u6b69\u7684\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u3068\u305d\u308c\u306b\u5bfe\u3059\u308b\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u3092\u77e5\u308a\u305f\u3044\u65b9<\/ul>\n<hr \/>\n<p>[\u76ee\u6b21]<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6e96\u5099\uff1acargo new \u30b3\u30de\u30f3\u30c9\u306e\u307f<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8ab2\u984c\uff1a\u6574\u6570\u306e\u9589\u533a\u9593\uff08Closed Range\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5b66\u3093\u3060\u3053\u30680\uff1a\u524d\u63d0<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5b66\u3093\u3060\u3053\u30681\uff1aRust\u3067\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8868\u73fe \u301c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u30c7\u30fc\u30bf\u3068\u632f\u308b\u821e\u3044\u3092\u542b\u3080\u301c<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5b66\u3093\u3060\u3053\u30682\uff1aRust\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u57fa\u790e<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4eca\u56de\u306e\u5b9f\u88c5\u306e Pull Request<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u6b21\u56de\uff1aTDDBC\u300c\u8ab2\u984c\uff12\uff1a\u958b\u533a\u9593\u300d \u5b9f\u65bd\u4e88\u5b9a<\/ul>\n<hr \/>\n<h2>\u6e96\u5099\uff1acargo new \u30b3\u30de\u30f3\u30c9\u306e\u307f<\/h2>\n<p>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u7b49\u306e\u8a18\u4e8b\u306f\u3001\u4ee5\u4e0b\u8a18\u4e8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5ef137434c4406cf6922\/18-0.png%3Fw%3D720%26q%3D20\" alt=\" learn-rust-part0-introduction-and-setup-thumb\" \/><\/div>\n<p>\u6e96\u5099<\/p>\n<pre class=\"post-pre\"><code>cargo new tddbc-rust-practice <span class=\"nt\">--bin<\/span>\r\n<\/code><\/pre>\n<h2>\u8ab2\u984c\uff1a \u6574\u6570\u306e\u9589\u533a\u9593\uff08Closed Range\uff09<\/h2>\n<p>\u4eca\u56de\u3054\u7d39\u4ecb\u3059\u308b\u8ab2\u984c\u306e\u5185\u5bb9\u3067\u3059\u3002<\/p>\n<h3>\u8ab2\u984c1-1<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4e0b\u7aef\u70b9\u3068\u4e0a\u7aef\u70b9\u3092\u4e0e\u3048\u3066\u9589\u533a\u9593\u3092\u751f\u6210<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u9589\u533a\u9593\u304b\u3089\u4e0b\u7aef\u3001\u4e0a\u7aef\u306e\u53d6\u5f97<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u9589\u533a\u9593\u304b\u3089\u6587\u5b57\u5217\u306e\u53d6\u5f97<\/ul>\n<h3>\u8ab2\u984c1-2<\/h3>\n<ul class=\"post-ul\">\u9589\u533a\u9593\u304c\u6307\u5b9a\u3057\u305f\u6574\u6570\u3092\u542b\u3080\u304b(contains)\u5224\u5b9a<\/ul>\n<h3>\u8ab2\u984c1-3<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u9589\u533a\u9593\u304c\u5225\u306e\u9589\u533a\u9593\u3068\u7b49\u3057\u3044\u304b(equals)\u5224\u5b9a<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u9589\u533a\u9593\u304c\u5225\u306e\u9589\u533a\u9593\u3068\u63a5\u7d9a\u3057\u3066\u3044\u308b\u304b(isConnectedTo)\u5224\u5b9a<\/ul>\n<h2>\u5b66\u3093\u3060\u3053\u30680\uff1a\u524d\u63d0<\/h2>\n<h3>mod\uff08\u30e2\u30b8\u30e5\u30fc\u30eb\uff09\u306e\u6e96\u5099\u65b9\u6cd5<\/h3>\n<p>push\u3057\u305f\u79c1\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306etree\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">.\r\n<\/span><span class=\"go\">\u251c\u2500\u2500 Cargo.toml\r\n\u251c\u2500\u2500 README.md\r\n\u251c\u2500\u2500 src\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 lib.rs       \u2190\u30b3\u30ec\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 main.rs\r\n\u2514\u2500\u2500 tests\r\n    \u2514\u2500\u2500 lib.rs\r\n<\/span><\/code><\/pre>\n<p>src\/lib.rs\u306b\u6e96\u5099\u3059\u308b\u3053\u3068\u3067\u3044\u3044\u611f\u3058\u306b\u306a\u308b\u305d\u3046\u3067\u3059\u3002<\/p>\n<h3>\u57fa\u672c Private \uff08\u4f8b\u5916\u30a2\u30ea\uff09<\/h3>\n<blockquote><p>By default, everything in Rust is private, with two exceptions: Associated items in a pub Trait are public by default; Enum variants in a pub enum are also public by default. When an item is declared as pub, it can be thought of as being accessible to the outside world. For example:<\/p>\n<p>\/\/ Declare a private struct<br \/>\nstruct Foo;<\/p>\n<p>\/\/ Declare a public struct with a private field<br \/>\npub struct Bar {<br \/>\nfield: i32,<br \/>\n}<\/p>\n<p>\/\/ Declare a public enum with two public variants<br \/>\npub enum State {<br \/>\nPubliclyAccessibleState,<br \/>\nPubliclyAccessibleState2,<br \/>\n}<\/p>\n<p>\u5f15\u7528\uff1aVisibility and Privacy &#8211; The Rust Reference<\/p><\/blockquote>\n<p>trait\u3068enum\u306b\u95a2\u3057\u3066\u306f\u4f8b\u5916\u7684\u306bpublic\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3060\u305d\u3046\u3067\u3059\u3002<\/p>\n<h2>\u5b66\u3093\u3060\u3053\u30681\uff1aRust\u3067\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8868\u73fe\u301c\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u30c7\u30fc\u30bf\u3068\u632f\u308b\u821e\u3044\u3092\u542b\u3080\u301c<\/h2>\n<p>Rust\u3067\u3082\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<blockquote><p>\u53c2\u8003\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a00\u8a9e\u306e\u7279\u5fb4 &#8211; The Rust Programming Language<\/p><\/blockquote>\n<p>\u5b9f\u969b\u306b\u66f8\u3044\u3066\u307f\u305f\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u3053\u3061\u3089\u306b\u306a\u308a\u307e\u3059\u3002\uff08GitHub\u306e\u30da\u30fc\u30b8\u3078\u98db\u3073\u307e\u3059\uff09<\/p>\n<p>GitHub &#8211; h0ng0yut0 tddbc-rust-practice\/lib.rs<\/p>\n<h3>struct\uff08\u69cb\u9020\u4f53\uff09<\/h3>\n<p>\u30e1\u30f3\u30d0\u5909\u6570\u5b9a\u7fa9\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u306d\u3002\u300c\u9589\u533a\u9593\u306f\u4e0b\u9650\u3068\u4e0a\u9650\u3092\u6301\u3064\u300d\u3068\u3044\u3046\u4f8b\u304c\u4ee5\u4e0b\u3067\u3059<br \/>\n\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ lib.rs<\/span>\r\n\r\n  <span class=\"nd\">#[derive(Clone)]<\/span>\r\n  <span class=\"k\">pub<\/span> <span class=\"k\">struct<\/span> <span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">lower<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"n\">upper<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u300c\u57fa\u672c Private \uff08\u4f8b\u5916\u30a2\u30ea\uff09\u300d\u3067 Private Public \u306e\u8a71\u3092\u3057\u307e\u3057\u305f\u304c\u3001 struct\u306e\u30e1\u30f3\u30d0\u3082\u30c7\u30d5\u30a9\u30eb\u30c8public\u3067\u3088\u304f\u306d\uff1f \u3068\u304b\u601d\u3046\u3093\u3060\u3051\u3069\u3069\u3046\u306a\u3093\u3060\u308d\u3046\u3002\u3002\u3002<\/p>\n<p>\u307e\u305f\u3001#[derive(Clone)]\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u540c\u3058\u5024\u3092\u6301\u3063\u305f\u69cb\u9020\u4f53\u3092clone\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\uff08clone\u3057\u306a\u3044\u3067\u666e\u901a\u306b\u4ee3\u5165\u3059\u308b\u3068\u3001Rust\u306e\u30e1\u30e2\u30ea\u7ba1\u7406\u65b9\u6cd5\u306b\u3088\u308a\u30b9\u30b3\u30fc\u30d7\u5916\u3068\u307f\u306a\u3055\u308c\u307e\u3059\u304b\u3089\u306d\u301c\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ main.rs<\/span>\r\n<span class=\"k\">let<\/span> <span class=\"n\">sample_closed_range<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">closed_range<\/span><span class=\"p\">::<\/span><span class=\"nn\">ClosedRange<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"mi\">5<\/span><span class=\"p\">);<\/span>\r\n<span class=\"k\">let<\/span> <span class=\"n\">sample_closed_range_same<\/span> <span class=\"o\">=<\/span> <span class=\"n\">sample_closed_range<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">();<\/span>\r\n<\/code><\/pre>\n<h3>impl\uff08\u5b9f\u88c5\uff09<\/h3>\n<p>struct\u306e\u6301\u3064\u632f\u308b\u821e\u3044\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">#[derive(Clone)]<\/span>\r\n<span class=\"k\">pub<\/span> <span class=\"k\">struct<\/span> <span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">pub<\/span> <span class=\"n\">lower<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"k\">pub<\/span> <span class=\"n\">upper<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">impl<\/span> <span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span>\r\n\r\n  <span class=\"k\">pub<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">match<\/span> <span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">)<\/span> <span class=\"k\">if<\/span> <span class=\"n\">lower<\/span> <span class=\"o\">&gt;<\/span> <span class=\"n\">upper<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\u4e0b\u9650\u3068\u4e0a\u9650\u306e\u5024\u304c\u4e0d\u6b63\u3067\u3059\"<\/span><span class=\"nf\">.to_owned<\/span><span class=\"p\">()),<\/span>\r\n      <span class=\"mi\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span> <span class=\"n\">lower<\/span><span class=\"p\">:<\/span> <span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">:<\/span> <span class=\"n\">upper<\/span> <span class=\"p\">}),<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"nf\">.unwrap<\/span><span class=\"p\">()<\/span> <span class=\"c\">\/\/ \u751f\u6210\u6642\u306bErr\u306e\u5834\u5408panic!\u3055\u305b\u3061\u3083\u3046<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"k\">pub<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">to_string<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"k\">self<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"nb\">String<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nd\">format!<\/span><span class=\"p\">(<\/span><span class=\"s\">\"[{},{}]\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">self<\/span><span class=\"py\">.lower<\/span><span class=\"p\">,<\/span> <span class=\"k\">self<\/span><span class=\"py\">.upper<\/span><span class=\"p\">)<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4eca\u56de new \u3068 to_string \u3092\u5b9a\u7fa9\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002impl\u81ea\u4f53\u306bpub\u3092\u66f8\u304b\u305a\u306b\u3001fn\u306b\u3064\u3051\u308b\u3089\u3057\u3044\u3067\u3059\u3002<\/p>\n<h2>\u5b66\u3093\u3060\u3053\u30682\uff1aRust\u306e\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u57fa\u790e<\/h2>\n<p>\u5b9f\u969b\u306b\u3053\u306e\u8ab2\u984c\u3067\u66f8\u3044\u3066\u307f\u305f\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>GitHub &#8211; h0ng0yut0 tddbc-rust-practice\/lib.rs<\/p>\n<h3>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u8a18\u8ff0&#8221;\u5834\u6240&#8221; 2\u7a2e\u985e<\/h3>\n<h4>1. \u540c\u3058\u30d5\u30a1\u30a4\u30eb\u5185\u306b\u30c6\u30b9\u30c8\u3092\u8a18\u8ff0\u3059\u308b<\/h4>\n<pre class=\"post-pre\"><code><span class=\"c\">.\r\n<\/span><span class=\"go\">\u251c\u2500\u2500 Cargo.toml\r\n\u251c\u2500\u2500 README.md\r\n\u2514\u2500\u2500 src\r\n\u3000\u00a0\u00a0 \u251c\u2500\u2500 lib.rs       \u2190\u30b3\u30b3\uff08\u672c\u6a5f\u80fd\u3068\u540c\u3058\u5834\u6240\uff09\r\n\u3000\u00a0\u00a0 \u2514\u2500\u2500 main.rs\r\n<\/span><\/code><\/pre>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">pub<\/span> <span class=\"k\">mod<\/span> <span class=\"n\">closed_range<\/span> <span class=\"p\">{<\/span>\r\n\r\n  <span class=\"c\">\/\/ \u5b9f\u969b\u306b\u5b9a\u7fa9\u3057\u305fstruct\u3084impl\u3092\u5b9f\u88c5<\/span>\r\n\r\n  <span class=\"nd\">#[cfg(test)]<\/span> <span class=\"c\">\/\/ \u30101\u3011\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u8a18\u8f09\u5834\u6240\u3092\u793a\u3059<\/span>\r\n  <span class=\"k\">mod<\/span> <span class=\"n\">tests<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">use<\/span> <span class=\"nn\">super<\/span><span class=\"p\">::<\/span><span class=\"o\">*<\/span><span class=\"p\">;<\/span> <span class=\"c\">\/\/ \u30102\u3011\u5916\u90e8\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u5b9a\u7fa9\u3057\u305f\u3082\u306e\u3092\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b<\/span>\r\n\r\n    <span class=\"nd\">#[test]<\/span> <span class=\"c\">\/\/ \u30103\u3011\u30c6\u30b9\u30c8\u3092fn\u3067\u8a18\u8ff0\u3057\u3066\u3044\u304f<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">test1<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"nd\">#[test]<\/span> <span class=\"c\">\/\/ \u30103\u3011\u30c6\u30b9\u30c8\u3092fn\u3067\u8a18\u8ff0\u3057\u3066\u3044\u304f<\/span>\r\n    <span class=\"k\">fn<\/span> <span class=\"nf\">test2<\/span> <span class=\"p\">(){<\/span>\r\n\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5229\u70b9\u3068\u3057\u3066\u306f\u3001 \u5b9f\u88c5\u7b87\u6240\u3068\u540c\u3058\u5834\u6240\u306b\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067\u3001\u5c0f\u3055\u3044\u30b5\u30a4\u30ba\u306e\u5b9f\u88c5\u3067\u3042\u308c\u3070\u898b\u901a\u3057\u304c\u826f\u3044 \u3068\u3044\u3046\u3068\u3053\u308d\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u306f\u3058\u3081\u3053\u3061\u3089\u306e\u5834\u6240\u3067\u5b9f\u88c5\u3057\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u672c\u6a5f\u80fd\u306e\u5b9f\u88c5\u3092\u898b\u901a\u3057\u3088\u304f\u3059\u308b\u305f\u3081\u306b\u3001\u5225\u306e\u5834\u6240\u3067\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u7ba1\u7406\u3059\u308b\u3053\u3068\u3068\u3057\u307e\u3057\u305f\u3002<\/p>\n<h4>2. tests \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306b\u8a18\u8ff0\u3059\u308b<\/h4>\n<pre class=\"post-pre\"><code><span class=\"c\">.\r\n<\/span><span class=\"go\">\u251c\u2500\u2500 Cargo.toml\r\n\u251c\u2500\u2500 README.md\r\n\u251c\u2500\u2500 src\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 lib.rs \r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 main.rs\r\n\u2514\u2500\u2500 tests\r\n    \u2514\u2500\u2500 lib.rs \u2190 \u30b3\u30ec\r\n<\/span><\/code><\/pre>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ \u30101\u3011\u5404\u3005\u30e9\u30a4\u30d6\u30e9\u30ea\u7b49\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/span>\r\n<span class=\"k\">extern<\/span> <span class=\"n\">crate<\/span> <span class=\"n\">tddbc_rust_practice<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">use<\/span> <span class=\"nn\">tddbc_rust_practice<\/span><span class=\"p\">::<\/span><span class=\"nn\">closed_range<\/span><span class=\"p\">::<\/span><span class=\"n\">ClosedRange<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"nd\">#[test]<\/span> <span class=\"c\">\/\/\u30102\u3011\u30c6\u30b9\u30c8\u3092fn\u3067\u8a18\u8ff0\u3057\u3066\u3044\u304f<\/span>\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">test1<\/span><span class=\"p\">(){<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"nd\">#[test]<\/span> <span class=\"c\">\/\/\u30102\u3011\u30c6\u30b9\u30c8\u3092fn\u3067\u8a18\u8ff0\u3057\u3066\u3044\u304f<\/span>\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">test2<\/span><span class=\"p\">(){<\/span>\r\n\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>1\u500b\u76ee\u3068\u306e\u9055\u3044\u306f\u4ee5\u4e0b\u306e\u70b9\u3067\u3059\u3002<\/p>\n<p>\u5fc5\u8981\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b \uff08\u30101\u3011\uff09<br \/>\ntests\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306b\u3042\u308b\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u3059\u3079\u3066\u30c6\u30b9\u30c8\u306e\u305f\u3081\u306b\u3042\u308b\u3068\u8a8d\u8b58\u3055\u308c\u308b\u306e\u3067\u3001#[cfg(test)] \u306e\u8a18\u8f09\u306f\u4e0d\u8981<\/p>\n<p>\u5229\u70b9\u3068\u3057\u3066\u306f\u3001\u540c\u3058\u5834\u6240\u306b\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u3092\u66f8\u304b\u306a\u3044\u306e\u3067 \u672c\u5b9f\u88c5\u306e\u898b\u901a\u3057\u304c\u826f\u3044\u3053\u3068 \u3067\u3057\u3087\u3046\u304b\uff1f\uff1f<\/p>\n<h3>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306e\u30a2\u30b5\u30fc\u30b7\u30e7\u30f3\u3068\u66f8\u304d\u65b9<\/h3>\n<h4>assert_eq!(left, right)<\/h4>\n<p>left == right \u306b\u306a\u308b\u3002\u4ee5\u4e0a\u3002\uff08equal\uff09<\/p>\n<h4>assert_ne!(left, right)<\/h4>\n<p>left != right \u306b\u306a\u308b\u3002\u4ee5\u4e0a\u3002\uff08not equal\uff09<\/p>\n<h4>assert!(hoge)<\/h4>\n<p>hoge\u306ftrue\u306b\u306a\u308b\u3002\u4ee5\u4e0a\u3002<\/p>\n<h4>#[should_panic] \u3067\u30a8\u30e9\u30fc\u78ba\u8a8d<\/h4>\n<p>\u4eca\u56de\u306e\u4f8b\u3067\u3044\u3046\u3068\u3001\u4e0b\u9650\u3068\u4e0a\u9650\u306e\u5165\u529b\u5024\u304c\u304a\u304b\u3057\u3044\u5834\u5408\u306b\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3059\u3088\u3046\u306b\u8a2d\u8a08\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u88c5<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"k\">impl<\/span> <span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">pub<\/span> <span class=\"k\">fn<\/span> <span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">:<\/span> <span class=\"nb\">i8<\/span><span class=\"p\">)<\/span> <span class=\"k\">-&gt;<\/span> <span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">match<\/span> <span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">)<\/span> <span class=\"k\">if<\/span> <span class=\"n\">lower<\/span> <span class=\"o\">&gt;<\/span> <span class=\"n\">upper<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nf\">Err<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\u4e0b\u9650\u3068\u4e0a\u9650\u306e\u5024\u304c\u4e0d\u6b63\u3067\u3059\"<\/span><span class=\"nf\">.to_owned<\/span><span class=\"p\">()),<\/span>\r\n        <span class=\"mi\">_<\/span> <span class=\"k\">=&gt;<\/span> <span class=\"nf\">Ok<\/span><span class=\"p\">(<\/span><span class=\"n\">ClosedRange<\/span> <span class=\"p\">{<\/span> <span class=\"n\">lower<\/span><span class=\"p\">:<\/span> <span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">:<\/span> <span class=\"n\">upper<\/span> <span class=\"p\">}),<\/span>\r\n      <span class=\"p\">}<\/span>\r\n      <span class=\"nf\">.unwrap<\/span><span class=\"p\">()<\/span> <span class=\"c\">\/\/ \u751f\u6210\u6642\u306bErr\u306e\u5834\u5408panic!\u3055\u305b\u3061\u3083\u3046<\/span>\r\n    <span class=\"p\">}<\/span>\r\n <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9<\/p>\n<pre class=\"post-pre\"><code><span class=\"nd\">#[test]<\/span>\r\n<span class=\"nd\">#[should_panic(expected<\/span> <span class=\"nd\">=<\/span> <span class=\"s\">\"\u4e0b\u9650\u3068\u4e0a\u9650\u306e\u5024\u304c\u4e0d\u6b63\u3067\u3059\"<\/span><span class=\"nd\">)]<\/span>\r\n<span class=\"k\">fn<\/span> <span class=\"nf\">new_error<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"c\">\/\/ \u4e0b\u9650\u3001\u4e0a\u9650\u306e\u5165\u529b\u304c\u4e0d\u6b63\u306a\u5834\u5408<\/span>\r\n  <span class=\"k\">let<\/span> <span class=\"n\">lower<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">5<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">let<\/span> <span class=\"n\">upper<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nn\">ClosedRange<\/span><span class=\"p\">::<\/span><span class=\"nf\">new<\/span><span class=\"p\">(<\/span><span class=\"n\">lower<\/span><span class=\"p\">,<\/span> <span class=\"n\">upper<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u66f8\u3051\u3070\u3001\u3069\u3093\u306a\u5185\u5bb9\u306epanic!\u304b\u3082\u30c6\u30b9\u30c8\u3067\u304d\u307e\u3059\u306d\u3002<\/p>\n<h2>\u4eca\u56de\u306e\u5b9f\u88c5\u306e Pull Request<\/h2>\n<p>\u8ab2\u984c1:\u9589\u533a\u9593 by h0ng0yut0 \u00b7 Pull Request #1 \u00b7 h0ng0yut0\/tddbc-rust-practice<\/p>\n<hr \/>\n<p>[\u3053\u308c\u304b\u3089\u8aad\u3093\u3067\u307f\u305f\u3044\u672c]<br \/>\nhttps:\/\/amzn.to\/34pexMw<\/p>\n<hr \/>\n<p>\u6700\u5f8c\u307e\u3067\u304a\u8aad\u307f\u3044\u305f\u3060\u304d\u3001\u8aa0\u306b\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002\u69d8\u3005\u306a\u3053\u3068\u3092\u5b66\u3093\u3067\u3044\u304d\u305f\u3044\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u5185\u5bb9\u3084\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u7b49\u306e\u30a2\u30c9\u30d0\u30a4\u30b9\u3044\u305f\u3060\u3051\u308b\u3068\u5e78\u3044\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ee5\u4e0b\u30da\u30fc\u30b8\u306e\u8ee2\u8f09\u306b\u306a\u308a\u307e\u3059\u3002\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002 Rust\u30920\u304b\u3089\u5b66\u3093\u3067\u307f\u305f\u301cPart.1\u301c struct, im [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45451","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/45451-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" 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