rect/rectangle_test.go
Derek McQuay fc4c1c820b determine size of rectangle
To determine the size of rectangle, it was required to be able to
determine who would be the neighboring points.  A neighbor is a point
that would make the exterior of the rectangle, not the cross-section.
Finding the neighbors allows for a simple l*w to calculate size.
2016-08-26 11:37:55 -07:00

55 lines
1.8 KiB
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,
)
}
}
}