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package runewidth
import (
"testing"
)
var runewidthtests = []struct {
in rune
out int
}{
{'世', 2},
{'界', 2},
{'ｾ', 1},
{'ｶ', 1},
{'ｲ', 1},
{'☆', 2}, // double width in ambiguous
{'\x00', 0},
{'\x01', 1},
{'\u0300', 0},
}
func TestRuneWidth(t *testing.T) {
c := NewCondition()
c.EastAsianWidth = true
for _, tt := range runewidthtests {
if out := c.RuneWidth(tt.in); out != tt.out {
t.Errorf("Width(%q) = %v, want %v", tt.in, out, tt.out)
}
}
}
var isambiguouswidthtests = []struct {
in rune
out bool
}{
{'世', false},
{'■', true},
{'界', false},
{'○', true},
{'㈱', false},
{'①', true},
{'②', true},
{'③', true},
{'④', true},
{'⑤', true},
{'⑥', true},
{'⑦', true},
{'⑧', true},
{'⑨', true},
{'⑩', true},
{'⑪', true},
{'⑫', true},
{'⑬', true},
{'⑭', true},
{'⑮', true},
{'⑯', true},
{'⑰', true},
{'⑱', true},
{'⑲', true},
{'⑳', true},
{'☆', true},
}
func TestIsAmbiguousWidth(t *testing.T) {
for _, tt := range isambiguouswidthtests {
if out := IsAmbiguousWidth(tt.in); out != tt.out {
t.Errorf("IsAmbiguousWidth(%q) = %v, want %v", tt.in, out, tt.out)
}
}
}
var stringwidthtests = []struct {
in string
out int
}{
{"■㈱の世界①", 12},
{"スター☆", 8},
}
func TestStringWidth(t *testing.T) {
c := NewCondition()
c.EastAsianWidth = true
for _, tt := range stringwidthtests {
if out := c.StringWidth(tt.in); out != tt.out {
t.Errorf("StringWidth(%q) = %v, want %v", tt.in, out, tt.out)
}
}
}
func TestStringWidthInvalid(t *testing.T) {
s := "こんにちわ\x00世界"
if out := StringWidth(s); out != 14 {
t.Errorf("StringWidth(%q) = %v, want %v", s, out, 14)
}
}
func TestTruncate(t *testing.T) {
s := "あいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおおおおお"
expected := "あいうえおあいうえおえおおおおおおおおおおおおおおおおおおおおおおおおおおお..."
if out := Truncate(s, 80, "..."); out != expected {
t.Errorf("Truncate(%q) = %v, want %v", s, out, expected)
}
}
func TestTruncateNoNeeded(t *testing.T) {
s := "あいうえおあい"
expected := "あいうえおあい"
if out := Truncate(s, 80, "..."); out != expected {
t.Errorf("Truncate(%q) = %v, want %v", s, out, expected)
}
}
var isneutralwidthtests = []struct {
in rune
out bool
}{
{'→', false},
{'┊', false},
{'┈', false},
{'～', false},
{'└', false},
{'⣀', true},
{'⣀', true},
}
func TestIsNeutralWidth(t *testing.T) {
for _, tt := range isneutralwidthtests {
if out := IsNeutralWidth(tt.in); out != tt.out {
t.Errorf("IsNeutralWidth(%q) = %v, want %v", tt.in, out, tt.out)
}
}
}