use float64

pkg/generator/plotter/plotter_test.go

@@ -28,7 +28,7 @@ func TestNewPlotter(t *testing.T) {
 func TestAsPlotterSize(t *testing.T) {
 	for _, tc := range []struct {
 		w, h   uint32
-		f      float32
+		f      float64
 		ew, eh uint32
 	}{
 		{10, 10, 0, 10, 10},
@@ -46,7 +46,7 @@ func TestAsPlotterSize(t *testing.T) {
 }
 
 func TestRandomFreePoint(t *testing.T) {
-	var factor float32 = 0.25
+	var factor float64 = 0.25
 	var w, h uint32 = 20, 20
 	bm := plotter.NewBitmap(w, h, factor)
 	p, err := plotter.NewBitmapPlotter(bm, factor) // 80x80
@@ -58,7 +58,7 @@ func TestRandomFreePoint(t *testing.T) {
 	if err != nil {
 		t.Errorf("expect: no error getting random point, got: %s", err)
 	}
-	if x > float32(w) || y > float32(w) {
+	if x > float64(w) || y > float64(w) {
 		t.Errorf("expect: point coordinates within map size %dx%d, got: x=%f y=%f", w, h, x, y)
 	}
 
@@ -67,7 +67,7 @@ func TestRandomFreePoint(t *testing.T) {
 		t.Errorf("expect: no error when radius is zero, got: %s", err)
 	}
 
-	_, _, err = p.RandomFreePoint(float32(w + h)) // guaranteed to mark whole area dead zone
+	_, _, err = p.RandomFreePoint(float64(w + h)) // guaranteed to mark whole area dead zone
 	if err != nil {
 		t.Errorf("expect: no error getting random point, got: %s", err)
 	}