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package tk
import (
"testing"
"src.elv.sh/pkg/cli/term"
"src.elv.sh/pkg/tt"
"src.elv.sh/pkg/ui"
)
var colViewRenderTests = []renderTest{
{
Name: "colview no column",
Given: NewColView(ColViewSpec{}),
Width: 10, Height: 24,
Want: &term.Buffer{Width: 10},
},
{
Name: "colview width < number of columns",
Given: NewColView(ColViewSpec{State: ColViewState{
Columns: []Widget{
makeListbox("x", 2, 0), makeListbox("y", 1, 0),
makeListbox("z", 3, 0), makeListbox("w", 1, 0),
},
}}),
Width: 3, Height: 24,
Want: &term.Buffer{Width: 3},
},
{
Name: "colview normal",
Given: NewColView(ColViewSpec{State: ColViewState{
Columns: []Widget{
makeListbox("x", 2, 1),
makeListbox("y", 1, 0),
makeListbox("z", 3, -1),
},
}}),
Width: 11, Height: 24,
Want: term.NewBufferBuilder(11).
// first line
Write("x0 ").
Write("y0 ", ui.Inverse).
Write(" z0").
// second line
Newline().Write("x1 ", ui.Inverse).
Write(" z1").
// third line
Newline().Write(" z2"),
},
}
func makeListbox(prefix string, n, selected int) Widget {
return NewListBox(ListBoxSpec{
State: ListBoxState{
Items: TestItems{Prefix: prefix, NItems: n},
Selected: selected,
}})
}
func TestColView_Render(t *testing.T) {
testRender(t, colViewRenderTests)
}
func TestColView_Handle(t *testing.T) {
// Channel for recording the place an event was handled. -1 for the widget
// itself, column index for column.
handledBy := make(chan int, 10)
w := NewColView(ColViewSpec{
Bindings: MapBindings{
term.K('a'): func(Widget) { handledBy <- -1 },
},
State: ColViewState{
Columns: []Widget{
NewListBox(ListBoxSpec{
Bindings: MapBindings{
term.K('a'): func(Widget) { handledBy <- 0 },
term.K('b'): func(Widget) { handledBy <- 0 },
}}),
NewListBox(ListBoxSpec{
Bindings: MapBindings{
term.K('a'): func(Widget) { handledBy <- 1 },
term.K('b'): func(Widget) { handledBy <- 1 },
}}),
},
FocusColumn: 1,
},
OnLeft: func(ColView) { handledBy <- 100 },
OnRight: func(ColView) { handledBy <- 101 },
})
expectHandled := func(event term.Event, wantBy int) {
t.Helper()
handled := w.Handle(event)
if !handled {
t.Errorf("Handle -> false, want true")
}
if by := <-handledBy; by != wantBy {
t.Errorf("Handled by %d, want %d", by, wantBy)
}
}
expectUnhandled := func(event term.Event) {
t.Helper()
handled := w.Handle(event)
if handled {
t.Errorf("Handle -> true, want false")
}
}
// Event handled by widget's overlay handler.
expectHandled(term.K('a'), -1)
// Event handled by the focused column.
expectHandled(term.K('b'), 1)
// Fallback handler for Left
expectHandled(term.K(ui.Left), 100)
// Fallback handler for Left
expectHandled(term.K(ui.Right), 101)
// No one to handle the event.
expectUnhandled(term.K('c'))
// No focused column: event unhandled
w.MutateState(func(s *ColViewState) { s.FocusColumn = -1 })
expectUnhandled(term.K('b'))
}
func TestDistribute(t *testing.T) {
tt.Test(t, distribute,
// Nice integer distributions.
Args(10, []int{1, 1}).Rets([]int{5, 5}),
Args(10, []int{2, 3}).Rets([]int{4, 6}),
Args(10, []int{1, 2, 2}).Rets([]int{2, 4, 4}),
// Approximate integer distributions.
Args(10, []int{1, 1, 1}).Rets([]int{3, 3, 4}),
Args(5, []int{1, 1, 1}).Rets([]int{1, 2, 2}),
)
}
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