gitech

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// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package util
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import (
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	"testing"
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	"github.com/stretchr/testify/assert"
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)
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func TestToSnakeCase(t *testing.T) {
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	cases := map[string]string{
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		// all old cases from the legacy package
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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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		// new cases
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		" ":        "_",
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		"A":        "a",
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		"A0":       "a0",
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		"a0":       "a0",
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		"Aa0":      "aa0",
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		"啊":        "啊",
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		"A啊":       "a啊",
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		"Aa啊b":     "aa啊b",
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		"A啊B":      "a啊_b",
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		"Aa啊B":     "aa啊_b",
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		"TheCase2": "the_case2",
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		"ObjIDs":   "obj_i_ds", // the strange database column name which already exists
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	}
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	for input, expected := range cases {
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		assert.Equal(t, expected, ToSnakeCase(input))
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	}
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}
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