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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package strs
import (
"strconv"
"testing"
)
func TestGoCamelCase(t *testing.T) {
tests := []struct {
in, want string
}{
{"", ""},
{"one", "One"},
{"one_two", "OneTwo"},
{"_my_field_name_2", "XMyFieldName_2"},
{"Something_Capped", "Something_Capped"},
{"my_Name", "My_Name"},
{"OneTwo", "OneTwo"},
{"_", "X"},
{"_a_", "XA_"},
{"one.two", "OneTwo"},
{"one.Two", "One_Two"},
{"one_two.three_four", "OneTwoThreeFour"},
{"one_two.Three_four", "OneTwo_ThreeFour"},
{"_one._two", "XOne_XTwo"},
{"SCREAMING_SNAKE_CASE", "SCREAMING_SNAKE_CASE"},
{"double__underscore", "Double_Underscore"},
{"camelCase", "CamelCase"},
{"go2proto", "Go2Proto"},
{"世界", "世界"},
{"x世界", "X世界"},
{"foo_bar世界", "FooBar世界"},
}
for _, tc := range tests {
if got := GoCamelCase(tc.in); got != tc.want {
t.Errorf("GoCamelCase(%q) = %q, want %q", tc.in, got, tc.want)
}
}
}
func TestGoSanitized(t *testing.T) {
tests := []struct {
in, want string
}{
{"", "_"},
{"boo", "boo"},
{"Boo", "Boo"},
{"ßoo", "ßoo"},
{"default", "_default"},
{"hello", "hello"},
{"hello-world!!", "hello_world__"},
{"hello-\xde\xad\xbe\xef\x00", "hello_____"},
{"hello 世界", "hello_世界"},
{"世界", "世界"},
}
for _, tc := range tests {
if got := GoSanitized(tc.in); got != tc.want {
t.Errorf("GoSanitized(%q) = %q, want %q", tc.in, got, tc.want)
}
}
}
func TestName(t *testing.T) {
tests := []struct {
in string
inEnumPrefix string
wantMapEntry string
wantEnumValue string
wantTrimValue string
wantJSONCamelCase string
wantJSONSnakeCase string
}{{
in: "abc",
inEnumPrefix: "",
wantMapEntry: "AbcEntry",
wantEnumValue: "Abc",
wantTrimValue: "abc",
wantJSONCamelCase: "abc",
wantJSONSnakeCase: "abc",
}, {
in: "foo_baR_",
inEnumPrefix: "foo_bar",
wantMapEntry: "FooBaREntry",
wantEnumValue: "FooBar",
wantTrimValue: "foo_baR_",
wantJSONCamelCase: "fooBaR",
wantJSONSnakeCase: "foo_ba_r_",
}, {
in: "snake_caseCamelCase",
inEnumPrefix: "snakecasecamel",
wantMapEntry: "SnakeCaseCamelCaseEntry",
wantEnumValue: "SnakeCasecamelcase",
wantTrimValue: "Case",
wantJSONCamelCase: "snakeCaseCamelCase",
wantJSONSnakeCase: "snake_case_camel_case",
}, {
in: "FiZz_BuZz",
inEnumPrefix: "fizz",
wantMapEntry: "FiZzBuZzEntry",
wantEnumValue: "FizzBuzz",
wantTrimValue: "BuZz",
wantJSONCamelCase: "FiZzBuZz",
wantJSONSnakeCase: "_fi_zz__bu_zz",
}}
for _, tt := range tests {
if got := MapEntryName(tt.in); got != tt.wantMapEntry {
t.Errorf("MapEntryName(%q) = %q, want %q", tt.in, got, tt.wantMapEntry)
}
if got := EnumValueName(tt.in); got != tt.wantEnumValue {
t.Errorf("EnumValueName(%q) = %q, want %q", tt.in, got, tt.wantEnumValue)
}
if got := TrimEnumPrefix(tt.in, tt.inEnumPrefix); got != tt.wantTrimValue {
t.Errorf("ErimEnumPrefix(%q, %q) = %q, want %q", tt.in, tt.inEnumPrefix, got, tt.wantTrimValue)
}
if got := JSONCamelCase(tt.in); got != tt.wantJSONCamelCase {
t.Errorf("JSONCamelCase(%q) = %q, want %q", tt.in, got, tt.wantJSONCamelCase)
}
if got := JSONSnakeCase(tt.in); got != tt.wantJSONSnakeCase {
t.Errorf("JSONSnakeCase(%q) = %q, want %q", tt.in, got, tt.wantJSONSnakeCase)
}
}
}
var (
srcString = "1234"
srcBytes = []byte(srcString)
dst uint64
)
func BenchmarkCast(b *testing.B) {
b.Run("Ideal", func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
dst, _ = strconv.ParseUint(srcString, 0, 64)
}
if dst != 1234 {
b.Errorf("got %d, want %s", dst, srcString)
}
})
b.Run("Copy", func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
dst, _ = strconv.ParseUint(string(srcBytes), 0, 64)
}
if dst != 1234 {
b.Errorf("got %d, want %s", dst, srcString)
}
})
b.Run("Cast", func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
dst, _ = strconv.ParseUint(UnsafeString(srcBytes), 0, 64)
}
if dst != 1234 {
b.Errorf("got %d, want %s", dst, srcString)
}
})
}
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