|
|
package stringx
|
|
|
|
|
|
import (
|
|
|
"path"
|
|
|
"testing"
|
|
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
|
)
|
|
|
|
|
|
func TestNotEmpty(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
args []string
|
|
|
expect bool
|
|
|
}{
|
|
|
{
|
|
|
args: []string{"a", "b", "c"},
|
|
|
expect: true,
|
|
|
},
|
|
|
{
|
|
|
args: []string{"a", "", "c"},
|
|
|
expect: false,
|
|
|
},
|
|
|
{
|
|
|
args: []string{"a"},
|
|
|
expect: true,
|
|
|
},
|
|
|
{
|
|
|
args: []string{""},
|
|
|
expect: false,
|
|
|
},
|
|
|
{
|
|
|
args: []string{},
|
|
|
expect: true,
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(path.Join(each.args...), func(t *testing.T) {
|
|
|
assert.Equal(t, each.expect, NotEmpty(each.args...))
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestContainsString(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
slice []string
|
|
|
value string
|
|
|
expect bool
|
|
|
}{
|
|
|
{[]string{"1"}, "1", true},
|
|
|
{[]string{"1"}, "2", false},
|
|
|
{[]string{"1", "2"}, "1", true},
|
|
|
{[]string{"1", "2"}, "3", false},
|
|
|
{nil, "3", false},
|
|
|
{nil, "", false},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(path.Join(each.slice...), func(t *testing.T) {
|
|
|
actual := Contains(each.slice, each.value)
|
|
|
assert.Equal(t, each.expect, actual)
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestFilter(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
input string
|
|
|
ignores []rune
|
|
|
expect string
|
|
|
}{
|
|
|
{``, nil, ``},
|
|
|
{`abcd`, nil, `abcd`},
|
|
|
{`ab,cd,ef`, []rune{','}, `abcdef`},
|
|
|
{`ab, cd,ef`, []rune{',', ' '}, `abcdef`},
|
|
|
{`ab, cd, ef`, []rune{',', ' '}, `abcdef`},
|
|
|
{`ab, cd, ef, `, []rune{',', ' '}, `abcdef`},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(each.input, func(t *testing.T) {
|
|
|
actual := Filter(each.input, func(r rune) bool {
|
|
|
for _, x := range each.ignores {
|
|
|
if x == r {
|
|
|
return true
|
|
|
}
|
|
|
}
|
|
|
return false
|
|
|
})
|
|
|
assert.Equal(t, each.expect, actual)
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestFirstN(t *testing.T) {
|
|
|
tests := []struct {
|
|
|
name string
|
|
|
input string
|
|
|
n int
|
|
|
ellipsis string
|
|
|
expect string
|
|
|
}{
|
|
|
{
|
|
|
name: "english string",
|
|
|
input: "anything that we use",
|
|
|
n: 8,
|
|
|
expect: "anything",
|
|
|
},
|
|
|
{
|
|
|
name: "english string with ellipsis",
|
|
|
input: "anything that we use",
|
|
|
n: 8,
|
|
|
ellipsis: "...",
|
|
|
expect: "anything...",
|
|
|
},
|
|
|
{
|
|
|
name: "english string more",
|
|
|
input: "anything that we use",
|
|
|
n: 80,
|
|
|
expect: "anything that we use",
|
|
|
},
|
|
|
{
|
|
|
name: "chinese string",
|
|
|
input: "我是中国人",
|
|
|
n: 2,
|
|
|
expect: "我是",
|
|
|
},
|
|
|
{
|
|
|
name: "chinese string with ellipsis",
|
|
|
input: "我是中国人",
|
|
|
n: 2,
|
|
|
ellipsis: "...",
|
|
|
expect: "我是...",
|
|
|
},
|
|
|
{
|
|
|
name: "chinese string",
|
|
|
input: "我是中国人",
|
|
|
n: 10,
|
|
|
expect: "我是中国人",
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, test := range tests {
|
|
|
t.Run(test.name, func(t *testing.T) {
|
|
|
assert.Equal(t, test.expect, FirstN(test.input, test.n, test.ellipsis))
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestJoin(t *testing.T) {
|
|
|
tests := []struct {
|
|
|
name string
|
|
|
input []string
|
|
|
expect string
|
|
|
}{
|
|
|
{
|
|
|
name: "all blanks",
|
|
|
input: []string{"", ""},
|
|
|
expect: "",
|
|
|
},
|
|
|
{
|
|
|
name: "two values",
|
|
|
input: []string{"012", "abc"},
|
|
|
expect: "012.abc",
|
|
|
},
|
|
|
{
|
|
|
name: "last blank",
|
|
|
input: []string{"abc", ""},
|
|
|
expect: "abc",
|
|
|
},
|
|
|
{
|
|
|
name: "first blank",
|
|
|
input: []string{"", "abc"},
|
|
|
expect: "abc",
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, test := range tests {
|
|
|
test := test
|
|
|
t.Run(test.name, func(t *testing.T) {
|
|
|
assert.Equal(t, test.expect, Join('.', test.input...))
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestRemove(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
input []string
|
|
|
remove []string
|
|
|
expect []string
|
|
|
}{
|
|
|
{
|
|
|
input: []string{"a", "b", "a", "c"},
|
|
|
remove: []string{"a", "b"},
|
|
|
expect: []string{"c"},
|
|
|
},
|
|
|
{
|
|
|
input: []string{"b", "c"},
|
|
|
remove: []string{"a"},
|
|
|
expect: []string{"b", "c"},
|
|
|
},
|
|
|
{
|
|
|
input: []string{"b", "a", "c"},
|
|
|
remove: []string{"a"},
|
|
|
expect: []string{"b", "c"},
|
|
|
},
|
|
|
{
|
|
|
input: []string{},
|
|
|
remove: []string{"a"},
|
|
|
expect: []string{},
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(path.Join(each.input...), func(t *testing.T) {
|
|
|
assert.ElementsMatch(t, each.expect, Remove(each.input, each.remove...))
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestReverse(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
input string
|
|
|
expect string
|
|
|
}{
|
|
|
{
|
|
|
input: "abcd",
|
|
|
expect: "dcba",
|
|
|
},
|
|
|
{
|
|
|
input: "",
|
|
|
expect: "",
|
|
|
},
|
|
|
{
|
|
|
input: "我爱中国",
|
|
|
expect: "国中爱我",
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(each.input, func(t *testing.T) {
|
|
|
assert.Equal(t, each.expect, Reverse(each.input))
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestSubstr(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
input string
|
|
|
start int
|
|
|
stop int
|
|
|
err error
|
|
|
expect string
|
|
|
}{
|
|
|
{
|
|
|
input: "abcdefg",
|
|
|
start: 1,
|
|
|
stop: 4,
|
|
|
expect: "bcd",
|
|
|
},
|
|
|
{
|
|
|
input: "我爱中国3000遍，even more",
|
|
|
start: 1,
|
|
|
stop: 9,
|
|
|
expect: "爱中国3000遍",
|
|
|
},
|
|
|
{
|
|
|
input: "abcdefg",
|
|
|
start: -1,
|
|
|
stop: 4,
|
|
|
err: ErrInvalidStartPosition,
|
|
|
expect: "",
|
|
|
},
|
|
|
{
|
|
|
input: "abcdefg",
|
|
|
start: 100,
|
|
|
stop: 4,
|
|
|
err: ErrInvalidStartPosition,
|
|
|
expect: "",
|
|
|
},
|
|
|
{
|
|
|
input: "abcdefg",
|
|
|
start: 1,
|
|
|
stop: -1,
|
|
|
err: ErrInvalidStopPosition,
|
|
|
expect: "",
|
|
|
},
|
|
|
{
|
|
|
input: "abcdefg",
|
|
|
start: 1,
|
|
|
stop: 100,
|
|
|
err: ErrInvalidStopPosition,
|
|
|
expect: "",
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(each.input, func(t *testing.T) {
|
|
|
val, err := Substr(each.input, each.start, each.stop)
|
|
|
assert.Equal(t, each.err, err)
|
|
|
if err == nil {
|
|
|
assert.Equal(t, each.expect, val)
|
|
|
}
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestTakeOne(t *testing.T) {
|
|
|
cases := []struct {
|
|
|
valid string
|
|
|
or string
|
|
|
expect string
|
|
|
}{
|
|
|
{"", "", ""},
|
|
|
{"", "1", "1"},
|
|
|
{"1", "", "1"},
|
|
|
{"1", "2", "1"},
|
|
|
}
|
|
|
|
|
|
for _, each := range cases {
|
|
|
t.Run(each.valid, func(t *testing.T) {
|
|
|
actual := TakeOne(each.valid, each.or)
|
|
|
assert.Equal(t, each.expect, actual)
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestTakeWithPriority(t *testing.T) {
|
|
|
tests := []struct {
|
|
|
fns []func() string
|
|
|
expect string
|
|
|
}{
|
|
|
{
|
|
|
fns: []func() string{
|
|
|
func() string {
|
|
|
return "first"
|
|
|
},
|
|
|
func() string {
|
|
|
return "second"
|
|
|
},
|
|
|
func() string {
|
|
|
return "third"
|
|
|
},
|
|
|
},
|
|
|
expect: "first",
|
|
|
},
|
|
|
{
|
|
|
fns: []func() string{
|
|
|
func() string {
|
|
|
return ""
|
|
|
},
|
|
|
func() string {
|
|
|
return "second"
|
|
|
},
|
|
|
func() string {
|
|
|
return "third"
|
|
|
},
|
|
|
},
|
|
|
expect: "second",
|
|
|
},
|
|
|
{
|
|
|
fns: []func() string{
|
|
|
func() string {
|
|
|
return ""
|
|
|
},
|
|
|
func() string {
|
|
|
return ""
|
|
|
},
|
|
|
func() string {
|
|
|
return "third"
|
|
|
},
|
|
|
},
|
|
|
expect: "third",
|
|
|
},
|
|
|
{
|
|
|
fns: []func() string{
|
|
|
func() string {
|
|
|
return ""
|
|
|
},
|
|
|
func() string {
|
|
|
return ""
|
|
|
},
|
|
|
func() string {
|
|
|
return ""
|
|
|
},
|
|
|
},
|
|
|
expect: "",
|
|
|
},
|
|
|
}
|
|
|
|
|
|
for _, test := range tests {
|
|
|
t.Run(RandId(), func(t *testing.T) {
|
|
|
val := TakeWithPriority(test.fns...)
|
|
|
assert.Equal(t, test.expect, val)
|
|
|
})
|
|
|
}
|
|
|
}
|
|
|
|
|
|
func TestUnion(t *testing.T) {
|
|
|
first := []string{
|
|
|
"one",
|
|
|
"two",
|
|
|
"three",
|
|
|
}
|
|
|
second := []string{
|
|
|
"zero",
|
|
|
"two",
|
|
|
"three",
|
|
|
"four",
|
|
|
}
|
|
|
union := Union(first, second)
|
|
|
contains := func(v string) bool {
|
|
|
for _, each := range union {
|
|
|
if v == each {
|
|
|
return true
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return false
|
|
|
}
|
|
|
assert.Equal(t, 5, len(union))
|
|
|
assert.True(t, contains("zero"))
|
|
|
assert.True(t, contains("one"))
|
|
|
assert.True(t, contains("two"))
|
|
|
assert.True(t, contains("three"))
|
|
|
assert.True(t, contains("four"))
|
|
|
}
|