67 lines
1.4 KiB
Go
67 lines
1.4 KiB
Go
|
package chart
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"testing"
|
||
|
|
|
||
|
|
assert "github.com/blendlabs/go-assert"
|
||
|
|
)
|
||
|
|
|
||
|
|
func TestBox2dCenter(t *testing.T) {
|
||
|
|
assert := assert.New(t)
|
||
|
|
|
||
|
|
bc := Box2d{
|
||
|
|
TopLeft: Point{5, 5},
|
||
|
|
TopRight: Point{15, 5},
|
||
|
|
BottomRight: Point{15, 15},
|
||
|
|
BottomLeft: Point{5, 15},
|
||
|
|
}
|
||
|
|
|
||
|
|
cx, cy := bc.Center()
|
||
|
|
assert.Equal(10, cx)
|
||
|
|
assert.Equal(10, cy)
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestBox2dRotate(t *testing.T) {
|
||
|
|
assert := assert.New(t)
|
||
|
|
|
||
|
|
bc := Box2d{
|
||
|
|
TopLeft: Point{5, 5},
|
||
|
|
TopRight: Point{15, 5},
|
||
|
|
BottomRight: Point{15, 15},
|
||
|
|
BottomLeft: Point{5, 15},
|
||
|
|
}
|
||
|
|
|
||
|
|
rotated := bc.Rotate(45)
|
||
|
|
assert.True(rotated.TopLeft.Equals(Point{10, 3}), rotated.String())
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestBox2dOverlaps(t *testing.T) {
|
||
|
|
assert := assert.New(t)
|
||
|
|
|
||
|
|
bc := Box2d{
|
||
|
|
TopLeft: Point{5, 5},
|
||
|
|
TopRight: Point{15, 5},
|
||
|
|
BottomRight: Point{15, 15},
|
||
|
|
BottomLeft: Point{5, 15},
|
||
|
|
}
|
||
|
|
|
||
|
|
// shift meaningfully the full width of bc right.
|
||
|
|
bc2 := bc.Shift(bc.Width()+1, 0)
|
||
|
|
assert.False(bc.Overlaps(bc2), fmt.Sprintf("%v\n\t\tshould not overlap\n\t%v", bc, bc2))
|
||
|
|
|
||
|
|
// shift meaningfully the full height of bc down.
|
||
|
|
bc3 := bc.Shift(0, bc.Height()+1)
|
||
|
|
assert.False(bc.Overlaps(bc3), fmt.Sprintf("%v\n\t\tshould not overlap\n\t%v", bc, bc3))
|
||
|
|
|
||
|
|
bc4 := bc.Shift(5, 0)
|
||
|
|
assert.True(bc.Overlaps(bc4))
|
||
|
|
|
||
|
|
bc5 := bc.Shift(0, 5)
|
||
|
|
assert.True(bc.Overlaps(bc5))
|
||
|
|
|
||
|
|
bcr := bc.Rotate(45)
|
||
|
|
bcr2 := bc.Rotate(45).Shift(bc.Height(), 0)
|
||
|
|
assert.False(bcr.Overlaps(bcr2), fmt.Sprintf("%v\n\t\tshould not overlap\n\t%v", bcr, bcr2))
|
||
|
|
}
|