Function TestLineNormal

math_test.go:530–569

(t *testing.T)

}

func TestLineNormal(t *testing.T) {
	data := []struct {
		l   Line
		exp Point
	}{
		{
			l: Line{
				P1: Point{X: 0, Y: 0},
				P2: Point{X: 0, Y: 0},
			},
			exp: Point{X: 0, Y: 0},
		},
		{
			l: Line{
				P1: Point{X: 0, Y: 0},
				P2: Point{X: 0, Y: 8},
			},
			exp: Point{X: 1, Y: 0},
		},
		{
			l: Line{
				P1: Point{X: 0, Y: 0},
				P2: Point{X: 8, Y: 0},
			},
			exp: Point{X: 0, Y: -1},
		},
		{
			l: Line{
				P1: Point{X: 0, Y: 0},
				P2: Point{X: 8, Y: 8},
			},
			exp: Point{X: math.Sqrt(2) / 2, Y: -1 * math.Sqrt(2) / 2},
		},
	}
	for _, d := range data {
		if res := d.l.Normal(); !res.Equal(d.exp) {
			t.Errorf("Test Line.Normal failed. l: %v, wanted: %v, got: %v", d.l, d.exp, res)
		}
	}
}

func TestDotProduct(t *testing.T) {
	data := []struct {