rect/rectangle_test.go

package rect

import "testing"

func TestIsRect(t *testing.T) {
	var isRectTests = []struct {
		r        Rectangle
		expected bool
	}{
		{Rectangle{P1: Point{1, 1}, P2: Point{1, 2}, P3: Point{2, 1}, P4: Point{2, 2}}, true},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 1}, P3: Point{1, 0}, P4: Point{1, 1}}, true},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, -1}, P3: Point{-1, 0}, P4: Point{-1, -1}}, true},
		{Rectangle{P1: Point{1.5, 1.5}, P2: Point{1.5, 3.5}, P3: Point{3.5, 1.5}, P4: Point{3.5, 3.5}}, true},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 3}, P3: Point{2, 0}, P4: Point{2, 3}}, true},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 100}, P3: Point{-1, 0}, P4: Point{0, 23}}, false},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 0}, P3: Point{0, 0}, P4: Point{0, 0}}, false},
	}
	for _, rt := range isRectTests {
		actual := rt.r.IsRect()
		if actual != rt.expected {
			t.Errorf(
				"failed spiral:\n\texpected: %d\n\t  actual: %d",
				rt.expected,
				actual,
			)
		}

	}
}

func TestSize(t *testing.T) {
	var isRectTests = []struct {
		r        Rectangle
		expected float64
	}{
		{Rectangle{P1: Point{1, 1}, P2: Point{1, 2}, P3: Point{2, 1}, P4: Point{2, 2}}, 1},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 1}, P3: Point{1, 0}, P4: Point{1, 1}}, 1},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, -1}, P3: Point{-1, 0}, P4: Point{-1, -1}}, 1},
		{Rectangle{P1: Point{1.5, 1.5}, P2: Point{1.5, 3.5}, P3: Point{3.5, 1.5}, P4: Point{3.5, 3.5}}, 4},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 3}, P3: Point{2, 0}, P4: Point{2, 3}}, 6},
		{Rectangle{P1: Point{0, 0}, P2: Point{0, 100}, P3: Point{100, 0}, P4: Point{100, 100}}, 10000},
	}
	for _, rt := range isRectTests {
		actual := rt.r.Size()
		if actual != rt.expected {
			t.Errorf(
				"failed spiral:\n\texpected: %d\n\t  actual: %d",
				rt.expected,
				actual,
			)
		}

	}
}

func TestContainment(t *testing.T) {
	var containmentTest = []struct {
		r        []Rectangle
		expected bool
	}{
		{
			[]Rectangle{
				Rectangle{Point{0, 0}, Point{0, 3}, Point{3, 0}, Point{3, 3}},
				Rectangle{Point{1, 1}, Point{1, 2}, Point{2, 1}, Point{2, 2}}},
			true,
		},
		{
			[]Rectangle{
				Rectangle{Point{0, 0}, Point{0, 3}, Point{3, 0}, Point{3, 3}},
				Rectangle{Point{1, 1}, Point{1, 2}, Point{2, 1}, Point{2, 2}}},
			true,
		},
		{
			[]Rectangle{
				Rectangle{Point{0, 0}, Point{0, 3}, Point{3, 0}, Point{3, 3}},
				Rectangle{Point{0, 0}, Point{0, 3}, Point{3, 0}, Point{3, 3}}},
			false,
		},
		{
			[]Rectangle{
				Rectangle{Point{0, 0}, Point{0, 3}, Point{3, 0}, Point{3, 3}},
				Rectangle{Point{3, 3}, Point{3, 4}, Point{4, 3}, Point{4, 4}}},
			false,
		},
	}
	for _, rt := range containmentTest {
		actual := Containment(rt.r[0], rt.r[1])
		if actual != rt.expected {
			t.Errorf(
				"failed spiral:\n\texpected: %d\n\t  actual: %d",
				rt.expected,
				actual,
			)
		}

	}
}