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restic/internal/ui/format_test.go
Florian Thoma e9de9684f4
Use character display width for table padding
Using len(...) for table cell padding produced wrong results for unicode
chracters leading to misaligned tables. Implementation changed to take
the actual terminal display width into consideration.
2024-06-05 09:33:15 +02:00

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package ui
import (
"testing"
"github.com/restic/restic/internal/test"
)
func TestFormatBytes(t *testing.T) {
for _, c := range []struct {
size uint64
want string
}{
{0, "0 B"},
{1023, "1023 B"},
{1024, "1.000 KiB"},
{5<<20 + 1<<19, "5.500 MiB"},
{1 << 30, "1.000 GiB"},
{2 << 30, "2.000 GiB"},
{1<<40 - 1<<36, "960.000 GiB"},
{1 << 40, "1.000 TiB"},
} {
if got := FormatBytes(c.size); got != c.want {
t.Errorf("want %q, got %q", c.want, got)
}
}
}
func TestFormatPercent(t *testing.T) {
for _, c := range []struct {
num, denom uint64
want string
}{
{0, 5, "0.00%"},
{3, 7, "42.86%"},
{99, 99, "100.00%"},
} {
if got := FormatPercent(c.num, c.denom); got != c.want {
t.Errorf("want %q, got %q", c.want, got)
}
}
}
func TestParseBytes(t *testing.T) {
for _, tt := range []struct {
in string
expected int64
}{
{"1024", 1024},
{"1024b", 1024},
{"1024B", 1024},
{"1k", 1024},
{"100k", 102400},
{"100K", 102400},
{"10M", 10485760},
{"100m", 104857600},
{"20G", 21474836480},
{"10g", 10737418240},
{"2T", 2199023255552},
{"2t", 2199023255552},
{"9223372036854775807", 1<<63 - 1},
} {
actual, err := ParseBytes(tt.in)
test.OK(t, err)
test.Equals(t, tt.expected, actual)
}
}
func TestParseBytesInvalid(t *testing.T) {
for _, s := range []string{
"",
" ",
"foobar",
"zzz",
"18446744073709551615", // 1<<64-1.
"9223372036854775807k", // 1<<63-1 kiB.
"9999999999999M",
"99999999999999999999",
} {
v, err := ParseBytes(s)
if err == nil {
t.Errorf("wanted error for invalid value %q, got nil", s)
}
test.Equals(t, int64(0), v)
}
}
func TestTerminalDisplayWidth(t *testing.T) {
for _, c := range []struct {
input string
want int
}{
{"foo", 3},
{"aéb", 3},
{"ab", 3},
{"ab", 3},
{"aあb", 4},
} {
if got := TerminalDisplayWidth(c.input); got != c.want {
t.Errorf("wrong display width for '%s', want %d, got %d", c.input, c.want, got)
}
}
}