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list_test.go
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list_test.go
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package tui
import (
"testing"
"github.com/kr/pretty"
)
func TestList_Draw(t *testing.T) {
surface := newTestSurface(10, 5)
painter := NewPainter(surface, NewTheme())
l := NewList()
l.AddItems("foo", "bar")
painter.Repaint(l)
want := `
foo
bar
..........
..........
..........
`
if surface.String() != want {
t.Errorf("got = \n%s\n\nwant = \n%s", surface.String(), want)
}
}
func TestList_RemoveItem(t *testing.T) {
surface := newTestSurface(5, 3)
painter := NewPainter(surface, NewTheme())
l := NewList()
l.AddItems("one", "two", "three", "four", "five")
l.SetSelected(1)
painter.Repaint(l)
want := `
one
two
three
`
// Make sure okay before removing any items.
if surface.String() != want {
t.Errorf("got = \n%s\n\nwant = \n%s", surface.String(), want)
}
// Remove a visible item.
l.RemoveItem(2)
painter.Repaint(l)
want = `
one
two
four
`
if surface.String() != want {
t.Error(pretty.Diff(surface.String(), want))
return
}
// Remove an item not visible.
l.RemoveItem(3)
painter.Repaint(l)
if surface.String() != want {
t.Errorf("got = \n%s\n\nwant = \n%s", surface.String(), want)
}
// Selected item should not have changed.
if l.Selected() != 1 {
t.Error(pretty.Diff(l.Selected, 1))
}
}