Ilia Denisov
110 lines
2.3 KiB
Go
110 lines
2.3 KiB
Go
package client
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import (
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"testing"
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/test"
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"github.com/stretchr/testify/require"
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"github.com/iliadenisov/galaxy/client/world"
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)
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type fakeEditor struct {
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scale float32
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p world.RenderParams
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forced bool
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updates int
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refresh int
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}
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func (e *fakeEditor) CanvasScale() float32 { return e.scale }
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func (e *fakeEditor) UpdateParams(fn func(p *world.RenderParams)) {
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fn(&e.p)
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e.updates++
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}
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func (e *fakeEditor) RequestRefresh() { e.refresh++ }
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func (e *fakeEditor) ForceFullRedraw() { e.forced = true }
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func TestPanController_DraggedUpdatesCameraByDeltaPx(t *testing.T) {
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t.Parallel()
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fe := &fakeEditor{
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scale: 1.0, // 1 fyne unit == 1 px for the test
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p: world.RenderParams{
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CameraZoom: 1.0,
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CameraXWorldFp: 5 * world.SCALE,
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CameraYWorldFp: 5 * world.SCALE,
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},
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}
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pc := NewPanController(fe)
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// Drag right by +3 px and down by +2 px.
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pc.Dragged(&fyne.DragEvent{
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Dragged: fyne.Delta{DX: 3, DY: 2},
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})
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require.Equal(t, 1, fe.updates)
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// Map follows pointer => camera moves opposite to pointer delta.
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require.Equal(t, 5*world.SCALE-3*world.SCALE, fe.p.CameraXWorldFp)
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require.Equal(t, 5*world.SCALE-2*world.SCALE, fe.p.CameraYWorldFp)
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}
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func TestPanController_DraggedUsesCanvasScaleByMultiplying(t *testing.T) {
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t.Parallel()
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fe := &fakeEditor{
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scale: 2.0, // 2 px per fyne unit
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p: world.RenderParams{
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CameraZoom: 1.0,
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CameraXWorldFp: 0,
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CameraYWorldFp: 0,
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},
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}
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pc := NewPanController(fe)
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// Dragged.DX=1 fyne unit => 2 px after scaling.
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pc.Dragged(&fyne.DragEvent{
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Dragged: fyne.Delta{DX: 1, DY: 0},
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})
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require.Equal(t, -2*world.SCALE, fe.p.CameraXWorldFp)
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}
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func TestPanController_DragEndForcesFullRedrawAndRefresh(t *testing.T) {
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t.Parallel()
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fe := &fakeEditor{
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scale: 1.0,
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p: world.RenderParams{
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CameraZoom: 1.0,
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CameraXWorldFp: 0,
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CameraYWorldFp: 0,
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},
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}
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pc := NewPanController(fe)
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// Simulate a drag start.
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pc.Dragged(&fyne.DragEvent{PointEvent: fyne.PointEvent{Position: fyne.Position{X: 1, Y: 1}}})
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pc.DragEnd()
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require.True(t, fe.forced)
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require.Equal(t, 1, fe.refresh)
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}
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// Optional: demonstrate use of fyne/test package to ensure types are available.
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// (Not strictly needed, but keeps fyne dependency "active" in tests.)
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func TestFyneTestDriverIsUsable(t *testing.T) {
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t.Parallel()
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_ = test.NewApp()
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}
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