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|
package tblfmt
import (
"encoding/json"
"reflect"
"regexp"
"slices"
"strconv"
"strings"
"testing"
runewidth "github.com/mattn/go-runewidth"
)
func TestTabwidthCalc(t *testing.T) {
tests := []struct {
s string
offset int
tab int
exp int
}{
{"", 0, 8, 0},
{" ", 0, 8, 1},
{" ", 0, 8, 4},
{"\u8888", 0, 8, 2},
{"\t", 0, 8, 8},
{"\t\t", 0, 8, 16}, // 5
{"\t\t ", 0, 8, 17},
{" \t\t ", 0, 8, 17},
{" \t\t\t ", 0, 8, 25},
{"foo\tbar\t", 0, 8, 16},
{"\t\t\u8888", 0, 8, 18}, // 10
{"\u8888\t\u8888", 0, 8, 10},
{"\u8888\t\u8888\t", 0, 8, 16},
{"", 1, 8, 0}, // 13
{"\t", 1, 4, 3},
{" \t", 1, 4, 3},
{" \t ", 1, 4, 4},
{"\u8888\t\u8888\t", 1, 4, 7},
/*
---xxxxxxxxx (width == 9)
| 袈 袈 |
*/
{"\u8888\t\t\u8888\t", 3, 2, 9}, // 18
/*
--------------xxxxxxxxxxxxxxxxxxxxxxxxxxxx (width == 28)
| 袈 袈 袈|
*/
{"\u8888\t\u8888\t\t\u8888", 14, 8, 28}, // 19
{"袈 袈 袈", 14, 8, 28},
}
for i, test := range tests {
tabs, w := tabpositions(test.s)
w += tabwidth(tabs, test.offset, test.tab)
if test.exp != w {
t.Errorf("test %d %q expected tabwidth(%v, %d, %d) = %d, got: %d", i, test.s, tabs, test.offset, test.tab, test.exp, w)
}
}
}
var tabRE = regexp.MustCompile("\t")
// tabpositions returns a list of tab positions in s.
func tabpositions(s string) ([][2]int, int) {
var tabs [][2]int
var last int
for _, m := range tabRE.FindAllStringIndex(s, -1) {
tabs = append(tabs, [2]int{m[0], runewidth.StringWidth(s[last:m[0]])})
last = m[0] + 1
}
return tabs, runewidth.StringWidth(s[last:])
}
func TestFormatBytesTabs(t *testing.T) {
tests := []escTest{
v("", 0),
v("\u8888\t\u8888", 4),
v(" \u8888 \t \u8888 ", 8),
}
for i, test := range tests {
v := FormatBytes([]byte(test.s), nil, 0, false, false, 0, 0)
if !reflect.DeepEqual(v, test.exp) {
t.Errorf("test %d %q expected %v, got: %v", i, test.s, test.exp, v)
width := runewidth.StringWidth(string(v.Buf))
if v.Width != width {
t.Errorf("test %d %q expected width %d, got: %d", i, test.s, width, v.Width)
}
if width != test.check {
t.Errorf("test %d %q expected check width %d, got: %d", i, test.s, test.check, width)
}
}
}
}
func TestFormatBytesComplex(t *testing.T) {
s := `{
"2011": "Team Garmin - Cervelo",
"2012": "AA Drink - Leontien.nl",
"2013": "Boels-Dolmans Cycling Team",
"2015": "Boels-Dolmans"
}`
v := FormatBytes([]byte(s), nil, 0, false, false, 0, 0)
if w := v.MaxWidth(0, 8); w != 39 {
t.Errorf("expected width of 39, got: %d", w)
}
}
func TestFormatJSON(t *testing.T) {
s := strings.Join(
[]string{
"\a",
"\b",
"\f",
"\n",
"\r",
"\t",
"\x1a",
"\x2b",
"\x3f",
"\\",
" ",
"\x9f",
"\xaf",
"\xff",
"\u1998",
"👀",
"🤰",
"foo",
"15\u00f8C",
},
";",
)
exp, err := json.Marshal(s)
if err != nil {
t.Fatalf("expected no error, got: %v", err)
}
exp = exp[1 : len(exp)-1]
t.Logf("exp: %q", string(exp))
v := FormatBytes([]byte(s), nil, 0, true, false, 0, 0)
t.Logf("v : %q", v)
if b := []byte(v.String()); !slices.Equal(b, exp) {
t.Errorf("\nexpected:\n%q\ngot:\n%q", string(exp), string(b))
}
}
func TestFormatBytesRaw(t *testing.T) {
tests := []struct {
s string
exp string
}{
{"", ""},
{"a", "a"},
{" ", `" "`},
{" ", `" "`},
{" ", `" "`},
{"\n", "\"\n\""},
{"\t", "\"\t\""},
{",", "\",\""},
{",\t", "\",\t\""},
{",\t\"", "\",\t\"\"\""},
}
for i, test := range tests {
v := FormatBytes([]byte(test.s), nil, 0, false, true, ',', '"')
buf := v.Buf
if v.Quoted {
buf = append([]byte{'"'}, append(buf, '"')...)
}
if string(buf) != test.exp {
t.Errorf("test %d %q expected %q == %q", i, test.s, string(buf), test.exp)
}
}
}
type escTest struct {
s string
exp *Value
check int
}
func quote(s string) string {
s = strconv.Quote(s)
s = s[1 : len(s)-1]
s = strings.Replace(s, `\t`, "\t", -1)
s = strings.Replace(s, `\n`, "\n", -1)
return s
}
func v(s string, check int) escTest {
c := quote(s)
tabs, width := tabpositions(c)
var buf []byte
if len(c) != 0 {
buf = []byte(c)
}
v := &Value{
Buf: buf,
Tabs: [][][2]int{tabs},
Width: width,
}
return escTest{s, v, check}
}
|
