ebiten/internal/graphicscommand/image_test.go
2018-12-17 21:46:53 +09:00

88 lines
2.4 KiB
Go

// Copyright 2018 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package graphicscommand_test
import (
"errors"
"image/color"
"os"
"testing"
"github.com/hajimehoshi/ebiten"
"github.com/hajimehoshi/ebiten/internal/graphics"
. "github.com/hajimehoshi/ebiten/internal/graphicscommand"
"github.com/hajimehoshi/ebiten/internal/testflock"
)
func TestMain(m *testing.M) {
testflock.Lock()
defer testflock.Unlock()
code := 0
regularTermination := errors.New("regular termination")
f := func(screen *ebiten.Image) error {
code = m.Run()
return regularTermination
}
if err := ebiten.Run(f, 320, 240, 1, "Test"); err != nil && err != regularTermination {
panic(err)
}
os.Exit(code)
}
func TestClear(t *testing.T) {
const w, h = 1024, 1024
src := NewImage(w/2, h/2)
dst := NewImage(w, h)
pix := dst.Pixels()
for j := 0; j < h/2; j++ {
for i := 0; i < w/2; i++ {
idx := 4 * (i + w*j)
got := color.RGBA{pix[idx], pix[idx+1], pix[idx+2], pix[idx+3]}
want := color.RGBA{}
if got != want {
t.Errorf("dst.At(%d, %d): got %v, want: %v", i, j, got, want)
}
}
}
pix = src.Pixels()
for j := 0; j < h/2; j++ {
for i := 0; i < w/2; i++ {
idx := 4 * (i + (w/2)*j)
got := color.RGBA{pix[idx], pix[idx+1], pix[idx+2], pix[idx+3]}
want := color.RGBA{}
if got != want {
t.Errorf("src.At(%d, %d): got %v, want: %v", i, j, got, want)
}
}
}
vs := graphics.QuadVertices(w/2, h/2, 0, 0, w/2, h/2, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1)
is := graphics.QuadIndices()
dst.DrawImage(src, vs, is, nil, graphics.CompositeModeClear, graphics.FilterNearest)
pix = dst.Pixels()
for j := 0; j < h/2; j++ {
for i := 0; i < w/2; i++ {
idx := 4 * (i + w*j)
got := color.RGBA{pix[idx], pix[idx+1], pix[idx+2], pix[idx+3]}
want := color.RGBA{}
if got != want {
t.Errorf("dst.At(%d, %d) after DrawImage: got %v, want: %v", i, j, got, want)
}
}
}
}