| // Copyright 2022 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 scan |
| |
| import ( |
| "testing" |
| ) |
| |
| func TestWrap(t *testing.T) { |
| const width = 10 |
| for _, test := range []struct { |
| in, want string |
| }{ |
| {"", ""}, |
| {"foo", "foo"}, |
| {"omnivorous", "omnivorous"}, // equals width |
| {"carnivorous", "carnivorous"}, // exceeds width |
| { |
| "A carnivorous beast.", |
| "A\ncarnivorous\nbeast.", |
| }, |
| { |
| "An omnivorous beast.", |
| "An\nomnivorous\nbeast.", |
| }, |
| { |
| "A nivorous beast.", |
| "A nivorous\nbeast.", |
| }, |
| { |
| "Carnivorous beasts of the forest primeval.", |
| "Carnivorous\nbeasts of\nthe forest\nprimeval.", |
| }, |
| { |
| "Able was I ere I saw Elba.", |
| "Able was I\nere I saw\nElba.", |
| }, |
| } { |
| got := wrap(test.in, width) |
| if got != test.want { |
| t.Errorf("\ngot:\n%s\n\nwant:\n%s", got, test.want) |
| } |
| } |
| } |