164 lines
4.0 KiB
Go
164 lines
4.0 KiB
Go
// Copyright 2015 Huan Du. All rights reserved.
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// Licensed under the MIT license that can be found in the LICENSE file.
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package xstrings
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import (
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"sort"
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"strings"
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"testing"
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)
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func TestToSnakeCase(t *testing.T) {
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runTestCases(t, ToSnakeCase, _M{
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"HTTPServer": "http_server",
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"_camelCase": "_camel_case",
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"NoHTTPS": "no_https",
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"Wi_thF": "wi_th_f",
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"_AnotherTES_TCaseP": "_another_tes_t_case_p",
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"ALL": "all",
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"_HELLO_WORLD_": "_hello_world_",
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"HELLO_WORLD": "hello_world",
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"HELLO____WORLD": "hello____world",
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"TW": "tw",
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"_C": "_c",
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" sentence case ": "__sentence_case__",
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" Mixed-hyphen case _and SENTENCE_case and UPPER-case": "_mixed_hyphen_case__and_sentence_case_and_upper_case",
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})
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}
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func TestToCamelCase(t *testing.T) {
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runTestCases(t, ToCamelCase, _M{
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"http_server": "HttpServer",
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"_camel_case": "_CamelCase",
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"no_https": "NoHttps",
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"_complex__case_": "_Complex_Case_",
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"all": "All",
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})
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}
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func TestSwapCase(t *testing.T) {
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runTestCases(t, SwapCase, _M{
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"swapCase": "SWAPcASE",
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"Θ~λa云Ξπ": "θ~ΛA云ξΠ",
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})
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}
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func TestFirstRuneToUpper(t *testing.T) {
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runTestCases(t, FirstRuneToUpper, _M{
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"hello, world!": "Hello, world!",
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"Hello, world!": "Hello, world!",
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"你好，世界！": "你好，世界！",
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})
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}
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func TestFirstRuneToLower(t *testing.T) {
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runTestCases(t, FirstRuneToLower, _M{
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"hello, world!": "hello, world!",
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"Hello, world!": "hello, world!",
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"你好，世界！": "你好，世界！",
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})
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}
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func TestShuffle(t *testing.T) {
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// It seems there is no reliable way to test shuffled string.
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// Runner just make sure shuffled string has the same runes as origin string.
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runner := func(str string) string {
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s := Shuffle(str)
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slice := sort.StringSlice(strings.Split(s, ""))
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slice.Sort()
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return strings.Join(slice, "")
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}
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runTestCases(t, runner, _M{
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"": "",
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"facgbheidjk": "abcdefghijk",
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"尝试中文": "中尝文试",
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"zh英文hun排": "hhnuz排文英",
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})
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}
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type testShuffleSource int
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// A generated random number sequance just for testing.
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var testShuffleTable = []int64{
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1874068156324778273,
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3328451335138149956,
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5263531936693774911,
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7955079406183515637,
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2703501726821866378,
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2740103009342231109,
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6941261091797652072,
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1905388747193831650,
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7981306761429961588,
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6426100070888298971,
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4831389563158288344,
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261049867304784443,
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1460320609597786623,
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5600924393587988459,
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8995016276575641803,
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732830328053361739,
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5486140987150761883,
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545291762129038907,
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6382800227808658932,
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2781055864473387780,
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1598098976185383115,
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4990765271833742716,
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5018949295715050020,
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2568779411109623071,
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3902890183311134652,
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4893789450120281907,
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2338498362660772719,
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2601737961087659062,
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7273596521315663110,
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3337066551442961397,
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8121576815539813105,
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2740376916591569721,
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8249030965139585917,
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898860202204764712,
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9010467728050264449,
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685213522303989579,
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2050257992909156333,
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6281838661429879825,
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2227583514184312746,
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2873287401706343734,
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}
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func (src testShuffleSource) Int63() int64 {
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n := testShuffleTable[int(src)%len(testShuffleTable)]
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src++
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return n
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}
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func (src testShuffleSource) Seed(int64) {}
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func TestShuffleSource(t *testing.T) {
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var src testShuffleSource
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runner := func(str string) string {
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return ShuffleSource(str, src)
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}
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runTestCases(t, runner, _M{
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"": "",
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"facgbheidjk": "bakefjgichd",
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"尝试中文怎么样": "怎试中样尝么文",
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"zh英文hun排": "hh英nzu文排",
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})
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}
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func TestSuccessor(t *testing.T) {
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runTestCases(t, Successor, _M{
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"": "",
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"abcd": "abce",
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"THX1138": "THX1139",
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"<<koala>>": "<<koalb>>",
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"1999zzz": "2000aaa",
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"ZZZ9999": "AAAA0000",
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"***": "**+",
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"来点中文试试": "来点中文试诖",
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"中cZ英ZZ文zZ混9zZ9杂99进z位": "中dA英AA文aA混0aA0杂00进a位",
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})
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}
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