| package drawer | |
| import ( | |
| "math" | |
| "testing" | |
| ) | |
| type TestFunc func(float64) float64 | |
| func (f TestFunc) Eval(x float64) float64 { return f(x) } | |
| var ( | |
| ident = TestFunc(func(x float64) float64 { return x }) | |
| sin = TestFunc(math.Sin) | |
| ) | |
| func TestDraw_Ident(t *testing.T) { | |
| m := Draw(ident) | |
| // Verify obtained image. | |
| // END OMIT | |
| t.Error(m.ColorModel()) | |
| } |