| // +build ignore,OMIT |
| |
| package string_test |
| |
| import ( |
| "fmt" |
| "strings" |
| "testing" |
| ) |
| |
| func TestIndex(t *testing.T) { |
| var tests = []struct { |
| s string |
| sep string |
| out int |
| }{ |
| {"", "", 0}, |
| {"", "a", -1}, |
| {"fo", "foo", -1}, |
| {"foo", "foo", 0}, |
| {"oofofoofooo", "f", 2}, |
| // etc |
| } |
| for _, test := range tests { |
| actual := strings.Index(test.s, test.sep) |
| if actual != test.out { |
| t.Errorf("Index(%q,%q) = %v; want %v", test.s, test.sep, actual, test.out) |
| } |
| } |
| } |
| |
| func BenchmarkIndex(b *testing.B) { |
| const s = "some_text=some☺value" |
| for i := 0; i < b.N; i++ { |
| strings.Index(s, "v") |
| } |
| } |
| |
| func ExampleIndex() { |
| fmt.Println(strings.Index("chicken", "ken")) |
| fmt.Println(strings.Index("chicken", "dmr")) |
| // Output: |
| // 4 |
| // -1 |
| } |