{"id":44683,"date":"2023-08-27T04:14:32","date_gmt":"2023-02-14T07:05:23","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44683-2\/"},"modified":"2024-04-30T20:16:27","modified_gmt":"2024-04-30T12:16:27","slug":"44683-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44683-2\/","title":{"rendered":""},"content":{"rendered":"<p>Go\u3067\u30c6\u30b9\u30c8\u3092\u66f8\u304f\u304a\u8a71\u3067\u3059\u3002<\/p>\n<p>\u57fa\u672c\u7684\u306a\u3068\u3053\u308d\u304b\u3089\u3001\u5fdc\u7528\u7684\u306a\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\uff08\u30d1\u30bf\u30fc\u30f3\uff1f\uff09\u3092\u307e\u3068\u3081\u3066\u304a\u304f\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u30dd\u30a4\u30f3\u30c8\u3092\u5148\u306b\u5217\u6319\u3057\u307e\u3059:<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30c6\u30b9\u30c8\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u4e01\u5be7\u306b\u66f8\u3053\u3046<\/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\">\u30c6\u30fc\u30d6\u30eb\u30c6\u30b9\u30c8\u3092\u6d3b\u7528\u3057\u3066\u30d1\u30bf\u30fc\u30f3\u3092\u6574\u7406\u3057\u306a\u304c\u3089\u7db2\u7f85\u3057\u3088\u3046<\/ul>\n<\/li>\n<\/ul>\n<p>\uff54\uff0eRun\u3092\u3064\u304b\u3063\u3066\u5927\u304d\u306a\u30c6\u30b9\u30c8\u3092\u5206\u5272\u3057\u3088\u3046<\/p>\n<p>t.Helper\u3092\u3064\u304b\u3063\u3066\u30c6\u30b9\u30c8\u30a8\u30e9\u30fc\u306e\u7b87\u6240\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3057\u3088\u3046<br \/>\n\u30c6\u30b9\u30c8\u7528\u306e\u30c7\u30fc\u30bf\u306f testdata \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u7f6e\u3053\u3046<br \/>\nSetup\/Teardown\u3092\u3046\u307e\u304f\u66f8\u3044\u3066\u30c6\u30b9\u30c8\u306e\u898b\u901a\u3057\u3092\u3088\u304f\u3057\u3088\u3046<br \/>\n\u7b49<\/p>\n<p>\u3067\u306f\u3001\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h1>\u5b9f\u88c5<\/h1>\n<p>tenntenn\u3055\u3093\u306e \u3082\u3063\u3068\u697d\u3057\u3066\u5f0f\u306e\u8a55\u4fa1\u5668\u3092\u4f5c\u308b \u3092\u53c2\u8003\u306b\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u8a08\u7b97\u6a5f\u80fd\u3092\u6301\u3064\u95a2\u6570(Compute)\u3092\u66f8\u3044\u3066\u3001\u305d\u308c\u3092\u30c6\u30b9\u30c8\u3057\u3066\u307f\u307e\u3059\uff08\u307f\u3093\u306a\u306f\u30c6\u30b9\u30c8\u304b\u3089\u66f8\u3053\u3046\uff09\u3002<\/p>\n<p>\u5b9f\u88c5\u30b3\u30fc\u30c9:<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">calc<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"go\/token\"<\/span>\r\n    <span class=\"s\">\"go\/types\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"n\">expr<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">tv<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">Eval<\/span><span class=\"p\">(<\/span><span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">NewFileSet<\/span><span class=\"p\">(),<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NewPackage<\/span><span class=\"p\">(<\/span><span class=\"s\">\"main\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"main\"<\/span><span class=\"p\">),<\/span> <span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">NoPos<\/span><span class=\"p\">,<\/span> <span class=\"n\">expr<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">tv<\/span><span class=\"o\">.<\/span><span class=\"n\">Value<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span><span class=\"p\">(),<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u30c6\u30b9\u30c8\u3092\u66f8\u3044\u3066\u307f\u3088\u3046<\/h1>\n<h2>\u30b7\u30f3\u30d7\u30eb\u306a\u30c6\u30b9\u30c8<\/h2>\n<p>\u307e\u305a\u306f\u30b7\u30f3\u30d7\u30eb\u306b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"s\">\"1+1\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">s<\/span> <span class=\"o\">!=<\/span> <span class=\"s\">\"2\"<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Compute(1+1) = %s, want 2\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">s<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>1+1=2\u3001\u7c21\u5358\u3067\u3059\u306d\u3002<\/p>\n<p>\u30c6\u30b9\u30c8\u7d50\u679c\u3092assert\u3059\u308b\u3088\u3046\u306a\u30c6\u30b9\u30c8\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u306f\u3001\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9069\u5207\u306b\u66f8\u304f\u7fd2\u6163\u304c\u3064\u304b\u306a\u3044\u306e\u3067\u3001\u500b\u4eba\u7684\u306b\u306f\u3042\u307e\u308a\u304a\u3059\u3059\u3081\u3057\u307e\u305b\u3093\u3002\u3053\u306e\u3042\u305f\u308a\u306f\u4ee5\u4e0b\u306eFAQ\u3092\u8aad\u3080\u3068\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">http:\/\/golang.org\/doc\/faq#assertions<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">http:\/\/golang.org\/doc\/faq#testing_framework<\/ul>\n<p>\u3069\u3046\u3057\u3066\u3082\u4f7f\u3044\u305f\u3044\u5834\u5408\u306f<\/p>\n<ul class=\"post-ul\">https:\/\/godoc.org\/github.com\/stretchr\/testify\/assert<\/ul>\n<p>\u304c\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u305f\u30c6\u30b9\u30c8<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">computeTests<\/span> <span class=\"o\">:=<\/span> <span class=\"p\">[]<\/span><span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">in<\/span>  <span class=\"kt\">string<\/span>\r\n        <span class=\"n\">out<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"p\">}{<\/span>\r\n        <span class=\"p\">{<\/span><span class=\"s\">\"1+1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"2\"<\/span><span class=\"p\">},<\/span>\r\n        <span class=\"p\">{<\/span><span class=\"s\">\"1.0\/2.0\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"0.5\"<\/span><span class=\"p\">},<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">test<\/span> <span class=\"o\">:=<\/span> <span class=\"k\">range<\/span> <span class=\"n\">computeTests<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"n\">test<\/span><span class=\"o\">.<\/span><span class=\"n\">in<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">s<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">test<\/span><span class=\"o\">.<\/span><span class=\"n\">out<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Compute(%s) = %s, want %s\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">test<\/span><span class=\"o\">.<\/span><span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">test<\/span><span class=\"o\">.<\/span><span class=\"n\">out<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30d1\u30bf\u30fc\u30f3\u3092\u7db2\u7f85\u3057\u305f\u3044\u5834\u5408\u306b\u3068\u3066\u3082\u4fbf\u5229\u3067\u3059\u3002\u3053\u3053\u3082\u30c6\u30b9\u30c8\u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u8a18\u8ff0\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u53c2\u8003:<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/github.com\/golang\/go\/wiki\/TableDrivenTests<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">https:\/\/golang.org\/doc\/code.html#Testing<\/ul>\n<h2>QuickCheck(testing\/quick)\u3067\u30d6\u30e9\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u30c6\u30b9\u30c8\u3092\u3059\u308b<\/h2>\n<p>testing\/quick\u3092\u4f7f\u3063\u3066\u3001\u30d6\u30e9\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u7684\u306a\u30c6\u30b9\u30c8\u3092\u66f8\u304d\u307e\u3059\u3002quick.Check\u306b\u6e21\u3057\u305f\u95a2\u6570\u306e\u5f15\u6570\u306b\u4e71\u6570\u304c\u5165\u308b\u306e\u3067\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u30c6\u30b9\u30c8\u3092\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">add<\/span> <span class=\"o\">:=<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"p\">,<\/span> <span class=\"n\">b<\/span> <span class=\"kt\">int16<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Sprintf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%d+%d\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">a<\/span><span class=\"p\">,<\/span> <span class=\"n\">b<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">expected<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strconv<\/span><span class=\"o\">.<\/span><span class=\"n\">Itoa<\/span><span class=\"p\">(<\/span><span class=\"kt\">int<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"p\">)<\/span> <span class=\"o\">+<\/span> <span class=\"kt\">int<\/span><span class=\"p\">(<\/span><span class=\"n\">b<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">s<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">expected<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Logf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Compute(%d+%d) = %s, want %s\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">a<\/span><span class=\"p\">,<\/span> <span class=\"n\">b<\/span><span class=\"p\">,<\/span> <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span><span class=\"p\">)<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"no\">false<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"no\">true<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">quick<\/span><span class=\"o\">.<\/span><span class=\"n\">Check<\/span><span class=\"p\">(<\/span><span class=\"n\">add<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span><span class=\"p\">);<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u3044\u6240\u304c\u96e3\u3057\u3044\u3067\u3059\u304c\u3001\u4e71\u6570\u3092\u4e0e\u3048\u3066\u30c6\u30b9\u30c8\u3059\u308b\u3053\u3068\u3067\u30d0\u30b0\u3092\u898b\u3064\u3051\u3089\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u53c2\u8003:<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/golang.org\/pkg\/testing\/quick\/<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">http:\/\/ymotongpoo.hatenablog.com\/entry\/2012\/11\/30\/155846<\/ul>\n<h2>t.Run\u3092\u4f7f\u3063\u3066\u30c6\u30b9\u30c8\u3092\u5206\u5272\u3059\u308b\uff08\u30b5\u30d6\u30c6\u30b9\u30c8\uff09<\/h2>\n<p>t.Run\u3092\u30c6\u30b9\u30c8\u3092\u5206\u3051\u308b\u305f\u3081\u306b\u4f7f\u3046\u3068\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Run<\/span><span class=\"p\">(<\/span><span class=\"s\">\"add sub\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"1+1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"2\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"-2+1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"-1\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">})<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Run<\/span><span class=\"p\">(<\/span><span class=\"s\">\"div\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"1.0\/2.0\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"0.5\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"2.0\/1.0\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"2\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">})<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"n\">in<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">s<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">expected<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Compute(%s) = %s, want %s\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u3053\u3067\u306f\u3001\u8db3\u3057\u7b97\u5f15\u304d\u7b97\u3068\u5272\u308a\u7b97\u3001\u306e\u30c6\u30b9\u30c8\u3092\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u30c6\u30b9\u30c8\u3092\u5225\u306e\u95a2\u6570\uff08testCompute\uff09\u306b\u8a18\u8ff0\u3057\u3001\u30c6\u30b9\u30c8\u306e\u5185\u5bb9\u306e\u898b\u901a\u3057\u3092\u826f\u304f\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u53c2\u8003:<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/golang.org\/pkg\/testing\/#hdr-Subtests_and_Sub_benchmarks<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">https:\/\/golang.org\/pkg\/testing\/#T.Run<\/ul>\n<h2>t.Helper\u3092\u4f7f\u3046<\/h2>\n<p>Go1.9\u304b\u3089t.Hepler()\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3057\u305f\u306e\u3067\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5148\u7a0b\u306e testCompute\u3000\u3092\u3082\u3046\u4e00\u5ea6\u898b\u3066\u307f\u307e\u3059\u3002\u3053\u306e\u4e2d\u3067\u30c6\u30b9\u30c8\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u3001go test \u306e\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306f testCompute \u5185\u3067\u767a\u751f\u3057\u305f\u3053\u3068\u3092\u884c\u756a\u53f7\u3067\u6559\u3048\u3066\u304f\u308c\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u3069\u306e\u30c6\u30b9\u30c8\u3067\u5931\u6557\u3057\u305f\u306e\u304b\u306f\u3084\u3084\u308f\u304b\u308a\u306b\u304f\u3044\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"n\">in<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">s<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">expected<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Compute(%s) = %s, want %s\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ &lt;- \u3053\u3053\u3067\u30c6\u30b9\u30c8\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u3001\u306f\u3053\u3053\u306e\u884c\u756a\u53f7\u304c\u8868\u793a\u3055\u308c\u308b<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u3053\u3067\u3001testCompute\u306bt.Helper()\u306e\uff11\u884c\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u3059\u308b\u3068\u3001testCompute\u5185\u3067\u767a\u751f\u3057\u305f\u30a8\u30e9\u30fc\u306f\u547c\u3073\u5143\u306eTestCompute\u306e\u3069\u306e\u884c\u3067\u5931\u6557\u3057\u305f\u306e\u304b\u3092\u8868\u793a\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Run<\/span><span class=\"p\">(<\/span><span class=\"s\">\"add sub\"<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"1+1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"2\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"-2+1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"-1\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"1+1\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"\u4e8c\"<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3053\u3053\u306e\u884c\u756a\u53f7\u304c\u5931\u6557\u3057\u305f\u3053\u3068\u304c\u8868\u793a\u3055\u308c\u308b\uff01\uff01<\/span>\r\n    <span class=\"p\">})<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Helper<\/span><span class=\"p\">()<\/span> <span class=\"c\">\/\/ &lt;- \u3053\u308c\u3092\u8ffd\u52a0\u3059\u308b<\/span>\r\n    <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Compute<\/span><span class=\"p\">(<\/span><span class=\"n\">in<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">s<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">expected<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Compute(%s) = %s, want %s\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">s<\/span><span class=\"p\">,<\/span> <span class=\"n\">expected<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ &lt;- \u3053\u3053\u3067\u30c6\u30b9\u30c8\u304c\u5931\u6557\u3057\u305f\u5834\u5408\u3001\u547c\u3073\u5143\u3067\u5931\u6557\u3057\u305f\u3053\u3068\u304c\u30ec\u30dd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>t.Helper() \u306f\u30c6\u30b9\u30c8\u306e\u30b5\u30dd\u30fc\u30c8\u95a2\u6570\u3092\u8a18\u8ff0\u3057\u305f\u5834\u5408\u306f\u5fc5\u305a\u4ed8\u3051\u308b\u3068\u826f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u53c2\u8003:<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/golang.org\/pkg\/testing\/#T.Helper<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">https:\/\/golang.org\/doc\/go1.9#test-helper<\/ul>\n<h2>\u30c6\u30b9\u30c8\u3067Setup\/Teardown\u3092\u4f7f\u3046<\/h2>\n<p>\u30c6\u30b9\u30c8\u306e\u5185\u5bb9\u3092\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u306b\u7f6e\u304d\u3001\u305d\u308c\u3092\u8aad\u3093\u3067\u30c6\u30b9\u30c8\u3059\u308b\u3001\u3068\u3044\u3046\u5185\u5bb9\u306b\u7121\u7406\u77e2\u7406\u66f8\u304d\u63db\u3048\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">f<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">os<\/span><span class=\"o\">.<\/span><span class=\"n\">Open<\/span><span class=\"p\">(<\/span><span class=\"s\">\"testdata\/compute.txt\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">defer<\/span> <span class=\"n\">f<\/span><span class=\"o\">.<\/span><span class=\"n\">Close<\/span><span class=\"p\">()<\/span>\r\n\r\n    <span class=\"n\">r<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">bufio<\/span><span class=\"o\">.<\/span><span class=\"n\">NewReader<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">line<\/span><span class=\"p\">,<\/span> <span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">r<\/span><span class=\"o\">.<\/span><span class=\"n\">ReadLine<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">==<\/span> <span class=\"n\">io<\/span><span class=\"o\">.<\/span><span class=\"n\">EOF<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">break<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">test<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strings<\/span><span class=\"o\">.<\/span><span class=\"n\">Split<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">),<\/span> <span class=\"s\">\"=\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"nb\">len<\/span><span class=\"p\">(<\/span><span class=\"n\">test<\/span><span class=\"p\">)<\/span> <span class=\"o\">!=<\/span> <span class=\"m\">2<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"s\">\"invalid test data: %s\"<\/span><span class=\"p\">,<\/span> <span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"n\">test<\/span><span class=\"p\">[<\/span><span class=\"m\">0<\/span><span class=\"p\">],<\/span> <span class=\"n\">test<\/span><span class=\"p\">[<\/span><span class=\"m\">1<\/span><span class=\"p\">])<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f\u51e6\u7406\u3092Setup\/Teardown\u306b\u307e\u3068\u3081\u3066\u307f\u308b\u3068\u2193<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">SetupComputeTest<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">,<\/span> <span class=\"n\">fname<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">bufio<\/span><span class=\"o\">.<\/span><span class=\"n\">Reader<\/span><span class=\"p\">,<\/span> <span class=\"k\">func<\/span><span class=\"p\">())<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">f<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">os<\/span><span class=\"o\">.<\/span><span class=\"n\">Open<\/span><span class=\"p\">(<\/span><span class=\"n\">fname<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">bufio<\/span><span class=\"o\">.<\/span><span class=\"n\">NewReader<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span><span class=\"p\">),<\/span> <span class=\"k\">func<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">f<\/span><span class=\"o\">.<\/span><span class=\"n\">Close<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">r<\/span><span class=\"p\">,<\/span> <span class=\"n\">Teardown<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">SetupComputeTest<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"testdata\/compute.txt\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">defer<\/span> <span class=\"n\">Teardown<\/span><span class=\"p\">()<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">line<\/span><span class=\"p\">,<\/span> <span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">r<\/span><span class=\"o\">.<\/span><span class=\"n\">ReadLine<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">==<\/span> <span class=\"n\">io<\/span><span class=\"o\">.<\/span><span class=\"n\">EOF<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">break<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">test<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strings<\/span><span class=\"o\">.<\/span><span class=\"n\">Split<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">),<\/span> <span class=\"s\">\"=\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"nb\">len<\/span><span class=\"p\">(<\/span><span class=\"n\">test<\/span><span class=\"p\">)<\/span> <span class=\"o\">!=<\/span> <span class=\"m\">2<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"s\">\"invalid test data: %s\"<\/span><span class=\"p\">,<\/span> <span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"p\">}<\/span>\r\n\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"p\">,<\/span> <span class=\"n\">test<\/span><span class=\"p\">[<\/span><span class=\"m\">0<\/span><span class=\"p\">],<\/span> <span class=\"n\">test<\/span><span class=\"p\">[<\/span><span class=\"m\">1<\/span><span class=\"p\">])<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u30c6\u30b9\u30c8\u5bfe\u8c61\u304c\u8907\u96d1\u306a\u3082\u306e\u3067\u306f\u306a\u3044\u306e\u3067\u7121\u7406\u77e2\u7406\u611f\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4e8b\u524d\u6e96\u5099\u3068\u30c6\u30b9\u30c8\u5f8c\u306e\u51e6\u7406\u3092\u307e\u3068\u3081\u3066\u304a\u3051\u308b\u306e\u3067\u4fbf\u5229\u3067\u3059\u3002httptest\u3084\u30e2\u30c3\u30af\u306e\u53d6\u308a\u307e\u3068\u3081\u3084\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306a\u3069\u306e\u51e6\u7406\u306a\u3069\u3092\u66f8\u3044\u3066\u304a\u304f\u3068\u826f\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u30c6\u30b9\u30c8\u7528\u306e\u30c7\u30fc\u30bf\u306ftestdata\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u7f6e\u304f\u3068\u826f\u3044\u3067\u3059\u3002Go\u306f\u3053\u306etestdata\u3092\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u3057\u3066\u306f\u898b\u306a\u3055\u306a\u3044\u305f\u3081\u3001\u69d8\u3005\u306a\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u7f6e\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 https:\/\/golang.org\/cmd\/go\/#hdr-Test_packages<\/p>\n<h2>\u30c6\u30b9\u30c8\u3067Setup\/Teardown\u3092\u4f7f\u3046(struct\u306btesting\u3092\u7d44\u307f\u8fbc\u3080)<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">computeTest<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">TB<\/span>\r\n    <span class=\"n\">f<\/span> <span class=\"o\">*<\/span><span class=\"n\">os<\/span><span class=\"o\">.<\/span><span class=\"n\">File<\/span>\r\n    <span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">bufio<\/span><span class=\"o\">.<\/span><span class=\"n\">Reader<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">SetupComputeTest<\/span><span class=\"p\">(<\/span><span class=\"n\">tb<\/span> <span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">TB<\/span><span class=\"p\">,<\/span> <span class=\"n\">fname<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">computeTest<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">f<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">os<\/span><span class=\"o\">.<\/span><span class=\"n\">Open<\/span><span class=\"p\">(<\/span><span class=\"n\">fname<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">tb<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">return<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">computeTest<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">TB<\/span><span class=\"o\">:<\/span> <span class=\"n\">tb<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">f<\/span><span class=\"o\">:<\/span>  <span class=\"n\">f<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">r<\/span><span class=\"o\">:<\/span>  <span class=\"n\">bufio<\/span><span class=\"o\">.<\/span><span class=\"n\">NewReader<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">computeTest<\/span><span class=\"p\">)<\/span> <span class=\"n\">Teardown<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">f<\/span><span class=\"o\">.<\/span><span class=\"n\">Close<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">computeTest<\/span><span class=\"p\">)<\/span> <span class=\"n\">testData<\/span><span class=\"p\">()<\/span> <span class=\"p\">(<\/span><span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">out<\/span> <span class=\"kt\">string<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"kt\">bool<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">line<\/span><span class=\"p\">,<\/span> <span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">r<\/span><span class=\"o\">.<\/span><span class=\"n\">ReadLine<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">==<\/span> <span class=\"n\">io<\/span><span class=\"o\">.<\/span><span class=\"n\">EOF<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"s\">\"\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"\"<\/span><span class=\"p\">,<\/span> <span class=\"no\">false<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">test<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">strings<\/span><span class=\"o\">.<\/span><span class=\"n\">Split<\/span><span class=\"p\">(<\/span><span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">),<\/span> <span class=\"s\">\"=\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"nb\">len<\/span><span class=\"p\">(<\/span><span class=\"n\">test<\/span><span class=\"p\">)<\/span> <span class=\"o\">!=<\/span> <span class=\"m\">2<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatal<\/span><span class=\"p\">(<\/span><span class=\"s\">\"invalid test data: %s\"<\/span><span class=\"p\">,<\/span> <span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">))<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">test<\/span><span class=\"p\">[<\/span><span class=\"m\">0<\/span><span class=\"p\">],<\/span> <span class=\"n\">test<\/span><span class=\"p\">[<\/span><span class=\"m\">1<\/span><span class=\"p\">],<\/span> <span class=\"no\">true<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">TestCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">tt<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">T<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">SetupComputeTest<\/span><span class=\"p\">(<\/span><span class=\"n\">tt<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"testdata\/compute.txt\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">defer<\/span> <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Teardown<\/span><span class=\"p\">()<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">out<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">testData<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">!<\/span><span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">break<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">testCompute<\/span><span class=\"p\">(<\/span><span class=\"n\">tt<\/span><span class=\"p\">,<\/span> <span class=\"n\">in<\/span><span class=\"p\">,<\/span> <span class=\"n\">out<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u306e\u4f8b\u3082\u7121\u7406\u77e2\u7406\u611f\u3042\u308a\u307e\u3059\u304c\u3001\u4f8b\u3068\u3057\u3066\u3002<br \/>\n\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u69cb\u9020\u4f53\u306b testing\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6301\u3064\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3068\u3053\u308d\u3067\u3059\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u5404\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u767a\u751f\u3057\u305f\u30a8\u30e9\u30fc\u51e6\u7406\u3092\u96a0\u853d\u3067\u304d\u307e\u3059\u3002\u9069\u5207\u306b\u96a0\u853d\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u306e\u5185\u5bb9\u306e\u898b\u901a\u3057\u304c\u826f\u304f\u306a\u308a\u307e\u3059\u3002\uff08\u3053\u306e\u4f8b\u306e\u5834\u5408\u306f\u30a4\u30de\u30a4\u30c1\uff09\u3002<br \/>\n\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u3082\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3084\u95a2\u9023\u3059\u308b\u30e2\u30c3\u30af\u306a\u3069\u3092\u59cb\u3081\u3001\u30c6\u30b9\u30c8\u4e2d\u306b\u3088\u304f\u4f7f\u3046\u30c1\u30a7\u30c3\u30af\u306e\u305f\u3081\u306e\u51e6\u7406\u3092\u307e\u3068\u3081\u3066\u5b9f\u88c5\u3057\u3066\u304a\u304f\u3068\u826f\u3044\u3067\u3059\u3002<\/p>\n<h2>\u30d1\u30c3\u30b1\u30fc\u30b8\u5168\u4f53\u3067Setup\/Teardown\u3092\u4f7f\u3046<\/h2>\n<p>\u304a\u307e\u3051\u3067\u3059\u304c\u3002<\/p>\n<p>\u3053\u306e\u5834\u5408\u306f func TestMain(m *testing.M) \u304c\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TestMain<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span> <span class=\"o\">*<\/span><span class=\"n\">testing<\/span><span class=\"o\">.<\/span><span class=\"n\">M<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">setup<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">ret<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">m<\/span><span class=\"o\">.<\/span><span class=\"n\">Run<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">teardown<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">os<\/span><span class=\"o\">.<\/span><span class=\"n\">Exit<\/span><span class=\"p\">(<\/span><span class=\"n\">ret<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>m.Run\u3067\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u306e\u30c6\u30b9\u30c8\u304c\u3059\u3079\u3066\u5b9f\u884c\u3055\u308c\u308b\u305f\u3081\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u5168\u4f53\u306eSetup\u3068Teardown\u304c\u66f8\u3051\u307e\u3059\u3002<\/p>\n<p>\u53c2\u8003:<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/golang.org\/pkg\/testing\/#hdr-Main<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">http:\/\/atotto.hatenadiary.jp\/entry\/2014\/12\/19\/214357<\/ul>\n<h1>\u6700\u5f8c\u306b<\/h1>\n<p>Go\u3092\u958b\u767a\u3067\u4f7f\u3063\u3066\u304d\u305f\u4e2d\u3067\u4f7f\u3063\u3066\u304d\u305f\u30c6\u30b9\u30c8\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7c21\u5358\u306b\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u3069\u306e\u4f8b\u3082\u3084\u308a\u3059\u304e\u306a\u3044\u3053\u3068\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u904e\u5ea6\u306a\u62bd\u8c61\u5316\u3084\u30b5\u30dd\u30fc\u30c8\u95a2\u6570\u306f\u8aad\u307f\u624b\u306b\u6df7\u4e71\u3092\u4e0e\u3048\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u3068\u3001\u5049\u305d\u3046\u306b\u66f8\u3044\u3066\u307e\u3059\u304c\u3001\u3044\u3044\u5869\u6885\u306b\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308b\u306e\u306f\u6b63\u76f4\u96e3\u3057\u3044\u3067\u3059\u3002\u60a9\u307e\u3057\u3044\u2026\u3002<\/p>\n<p>gist\u306b\u7f6e\u3044\u3066\u304a\u304d\u307e\u3057\u305f https:\/\/gist.github.com\/atotto\/d753d91f5f3661b07a3391c0c9f6fb05<\/p>\n<h1>\u53c2\u8003<\/h1>\n<ul class=\"post-ul\">https:\/\/github.com\/golang\/go\/wiki\/LearnTesting<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Go\u3067\u30c6\u30b9\u30c8\u3092\u66f8\u304f\u304a\u8a71\u3067\u3059\u3002 \u57fa\u672c\u7684\u306a\u3068\u3053\u308d\u304b\u3089\u3001\u5fdc\u7528\u7684\u306a\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\uff08\u30d1\u30bf\u30fc\u30f3\uff1f\uff09\u3092\u307e\u3068\u3081\u3066\u304a\u304f\u3053\u3068\u306b\u3057\u307e [&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-44683","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) - 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