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package ui
import (
"strings"
"testing"
)
func assertSplitPoints(t *testing.T, body string, expected []point) {
l := Line{Body: PlainString(body)}
l.computeSplitPoints()
if len(l.splitPoints) != len(expected) {
t.Errorf("%q: expected %d split points got %d", body, len(expected), len(l.splitPoints))
return
}
for i := 0; i < len(expected); i++ {
e := expected[i]
a := l.splitPoints[i]
if e.X != a.X {
t.Errorf("%q, point #%d: expected X=%d got %d", body, i, e.X, a.X)
}
if e.I != a.I {
t.Errorf("%q, point #%d: expected I=%d got %d", body, i, e.I, a.I)
}
if e.Split != a.Split {
t.Errorf("%q, point #%d: expected Split=%t got %t", body, i, e.Split, a.Split)
}
}
}
func TestLineSplitPoints(t *testing.T) {
assertSplitPoints(t, "hello", []point{
{X: 0, I: 0, Split: false},
{X: 5, I: 5, Split: true},
})
assertSplitPoints(t, "hello world", []point{
{X: 0, I: 0, Split: false},
{X: 5, I: 5, Split: true},
{X: 6, I: 6, Split: false},
{X: 11, I: 11, Split: true},
})
assertSplitPoints(t, "lorem ipsum dolor shit amet", []point{
{X: 0, I: 0, Split: false},
{X: 5, I: 5, Split: true},
{X: 6, I: 6, Split: false},
{X: 11, I: 11, Split: true},
{X: 12, I: 12, Split: false},
{X: 17, I: 17, Split: true},
{X: 18, I: 18, Split: false},
{X: 22, I: 22, Split: true},
{X: 23, I: 23, Split: false},
{X: 27, I: 27, Split: true},
})
}
func showSplit(s string, nls []int) string {
var sb strings.Builder
sb.Grow(len(s) + len(nls))
for i, r := range s {
if 0 < len(nls) && i == nls[0] {
sb.WriteRune('|')
nls = nls[1:]
}
sb.WriteRune(r)
}
return sb.String()
}
func assertNewLines(t *testing.T, body string, width int, expected int) {
l := Line{Body: PlainString(body)}
l.computeSplitPoints()
actual := l.NewLines(width)
if len(actual)+1 != expected {
s := showSplit(body, actual)
t.Errorf("%q with width=%d expected to take %d lines, takes %d: '%s' (%v)", body, width, expected, len(actual)+1, s, actual)
return
}
}
func TestRenderedHeight(t *testing.T) {
assertNewLines(t, "0123456789", 1, 10)
assertNewLines(t, "0123456789", 2, 5)
assertNewLines(t, "0123456789", 3, 4)
assertNewLines(t, "0123456789", 4, 3)
assertNewLines(t, "0123456789", 5, 2)
assertNewLines(t, "0123456789", 6, 2)
assertNewLines(t, "0123456789", 7, 2)
assertNewLines(t, "0123456789", 8, 2)
assertNewLines(t, "0123456789", 9, 2)
assertNewLines(t, "0123456789", 10, 1)
assertNewLines(t, "0123456789", 11, 1)
// LEN=9, WIDTH=9
assertNewLines(t, "take care", 1, 8) // |t|a|k|e|c|a|r|e|
assertNewLines(t, "take care", 2, 4) // |ta|ke|ca|re|
assertNewLines(t, "take care", 3, 3) // |tak|e c|are|
assertNewLines(t, "take care", 4, 2) // |take|care|
assertNewLines(t, "take care", 5, 2) // |take |care |
assertNewLines(t, "take care", 6, 2) // |take |care |
assertNewLines(t, "take care", 7, 2) // |take |care |
assertNewLines(t, "take care", 8, 2) // |take |care |
assertNewLines(t, "take care", 9, 1) // |take care|
assertNewLines(t, "take care", 10, 1) // |take care |
// LEN=10, WIDTH=10
assertNewLines(t, "take care", 1, 8) // |t|a|k|e|c|a|r|e|
assertNewLines(t, "take care", 2, 4) // |ta|ke|ca|re|
assertNewLines(t, "take care", 3, 4) // |tak|e |car|e |
assertNewLines(t, "take care", 4, 2) // |take|care|
assertNewLines(t, "take care", 5, 2) // |take |care |
assertNewLines(t, "take care", 6, 2) // |take |care |
assertNewLines(t, "take care", 7, 2) // |take |care |
assertNewLines(t, "take care", 8, 2) // |take |care |
assertNewLines(t, "take care", 9, 2) // |take |care |
assertNewLines(t, "take care", 10, 1) // |take care|
assertNewLines(t, "take care", 11, 1) // |take care |
// LEN=16, WIDTH=16
assertNewLines(t, "have a good day!", 1, 13) // |h|a|v|e|a|g|o|o|d|d|a|y|!|
assertNewLines(t, "have a good day!", 2, 7) // |ha|ve|a |go|od|da|y!|
assertNewLines(t, "have a good day!", 3, 5) // |hav|e a|goo|d d|ay!|
assertNewLines(t, "have a good day!", 4, 4) // |have|a |good|day!|
assertNewLines(t, "have a good day!", 5, 4) // |have |a |good |day! |
assertNewLines(t, "have a good day!", 6, 3) // |have a|good |day! |
assertNewLines(t, "have a good day!", 7, 3) // |have a |good |day! |
assertNewLines(t, "have a good day!", 8, 3) // |have a |good |day! |
assertNewLines(t, "have a good day!", 9, 2) // |have a |good day!|
assertNewLines(t, "have a good day!", 10, 2) // |have a |good day! |
assertNewLines(t, "have a good day!", 11, 2) // |have a good|day! |
assertNewLines(t, "have a good day!", 12, 2) // |have a good |day! |
assertNewLines(t, "have a good day!", 13, 2) // |have a good |day! |
assertNewLines(t, "have a good day!", 14, 2) // |have a good |day! |
assertNewLines(t, "have a good day!", 15, 2) // |have a good |day! |
assertNewLines(t, "have a good day!", 16, 1) // |have a good day!|
assertNewLines(t, "have a good day!", 17, 1) // |have a good day! |
assertNewLines(t, "cc en direct du word wrapping des familles le tests ça v a va va v a va", 46, 2)
}
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