Golang测试func TestXX(t *testing.T)的使用详解

package tests
import "strings"
func Split(s, sep string) (res []string) {
	i := strings.Index(s, sep)
	for i > -1 {
		res = append(res, s[:i])
		s = s[i+len(sep):]
		i = strings.Index(s, sep)
	}
	res = append(res, s)
	return
}

func TestSplit(t *testing.T) {
	inputs := Split("a:b:c", ":")
	want := []string{"a", "b", "c"}
	if !reflect.DeepEqual(inputs, want) {
		t.Errorf("inputs:%v, want:%v", inputs, want)
	}
}

func TestSplit(t *testing.T) {
	testCases := []struct {
		input string
		sep   string
		want  []string
	}{
		{input: "a:b:c", sep: ":", want: []string{"a", "b", "c"}},
		{input: "a:b:c", sep: ",", want: []string{"a:b:c"}},
		{input: "abcd", sep: "bc", want: []string{"a", "d"}},
	}
	for _, tc := range testCases {
		got := Split(tc.input, tc.sep)
		if !reflect.DeepEqual(got, tc.want) {
			t.Errorf("期望值：%v，实际值：%v\n", tc.want, got)
		}
	}
}

func TestSplit(t *testing.T) {
	testCases := map[string]struct {
		input string
		sep   string
		want  []string
	}{
		"one":   {input: "a:b:c", sep: ":", want: []string{"a", "b", "c"}},
		"two":   {input: "a:b:c", sep: ":", want: []string{"a", "b", "c"}},
		"three": {input: "a:b:c", sep: ":", want: []string{"a", "b", "c"}},
		"four":  {input: "a:b:c", sep: ":", want: []string{"a", "b", "c"}},
		"five":  {input: "a:b:c", sep: ":", want: []string{"b", "b", "c"}},
	}
	for name, tc := range testCases {
		t.Run(name, func(t *testing.T) {
			got := Split(tc.input, tc.sep)
			if !reflect.DeepEqual(got, tc.want) {
				t.Errorf("期望值：%v，实际值：%v", tc.want, got)
			}
		})
	}
}