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package color
import (
"strings"
"testing"
)
func TestWrapANSIDisabled(t *testing.T) {
s := "this is a very long line that would normally be wrapped if enabled"
if got := WrapANSI(s, 0); got != s {
t.Errorf("WrapANSI(_, 0) = %q, want unchanged", got)
}
}
func TestWrapANSIShortLineUntouched(t *testing.T) {
s := " indented menu item"
if got := WrapANSI(s, 80); got != s {
t.Errorf("short line was modified: got %q, want %q", got, s)
}
}
func TestWrapANSIWrapsLongLine(t *testing.T) {
s := "alpha bravo charlie delta echo foxtrot golf hotel india juliet"
got := WrapANSI(s, 20)
lines := strings.Split(got, "\r\n")
if len(lines) < 2 {
t.Fatalf("expected multiple lines, got %d: %q", len(lines), got)
}
for _, l := range lines {
if VisibleLen(l) > 20 {
t.Errorf("line exceeds width: %q (%d)", l, VisibleLen(l))
}
}
if strings.Join(strings.Fields(got), " ") != s {
t.Errorf("words not preserved: %q", got)
}
}
func TestWrapANSIIgnoresColorCodes(t *testing.T) {
colored := FgCode("xterm256", 182) + "hello world" + Reset
if VisibleLen(colored) > 80 {
t.Fatalf("test setup wrong, visible len = %d", VisibleLen(colored))
}
if got := WrapANSI(colored, 80); got != colored {
t.Errorf("colored line within width was wrapped: %q", got)
}
}
func TestWrapANSISplitsOnNewlines(t *testing.T) {
got := WrapANSI("first line\nsecond line", 80)
want := "first line\r\nsecond line"
if got != want {
t.Errorf("WrapANSI newline handling = %q, want %q", got, want)
}
}
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