package textutil

import "testing"

func TestClip(t *testing.T) {
	if got := Clip("abcdef", 4); got != "abc…" {
		t.Fatalf("clip: %q", got)
	}
	if got := Clip("ab", 4); got != "ab" {
		t.Fatalf("short: %q", got)
	}
	if got := Clip("a\nb", 5); got != "a b" {
		t.Fatalf("newline: %q", got)
	}
}

func TestWrap(t *testing.T) {
	got := Wrap("one two three", 7)
	want := []string{"one two", "three"}
	if len(got) != len(want) {
		t.Fatalf("wrap %#v", got)
	}
	for i := range want {
		if got[i] != want[i] {
			t.Fatalf("line %d: %q", i, got[i])
		}
	}
	blank := Wrap("a\n\nb", 10)
	if len(blank) != 3 || blank[1] != "" {
		t.Fatalf("blank lines: %#v", blank)
	}
}