package area

import "testing"

func TestValidateGeometry(t *testing.T) {
	tests := []struct {
		name, kind, direction string
		points                []Point
		valid                 bool
	}{{"polygon", KindPolygon, "", []Point{{.1, .1}, {.9, .1}, {.5, .8}}, true}, {"self intersection", KindPolygon, "", []Point{{.1, .1}, {.9, .9}, {.9, .1}, {.1, .9}}, false}, {"outside", KindPolygon, "", []Point{{-.1, .1}, {.9, .1}, {.5, .8}}, false}, {"line", KindLine, DirectionAToB, []Point{{.1, .1}, {.9, .9}}, true}, {"line direction", KindLine, "", []Point{{.1, .1}, {.9, .9}}, false}, {"line degenerate", KindLine, DirectionBoth, []Point{{.1, .1}, {.1, .1}}, false}}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			err := ValidateGeometry(test.kind, test.direction, test.points)
			if (err == nil) != test.valid {
				t.Fatalf("err=%v valid=%v", err, test.valid)
			}
		})
	}
}