146 lines
3.6 KiB
Go
146 lines
3.6 KiB
Go
package chart
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import (
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"math"
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"testing"
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"github.com/blendlabs/go-assert"
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)
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func TestBoxClone(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 5, Left: 5, Right: 15, Bottom: 15}
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b := a.Clone()
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assert.True(a.Equals(b))
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assert.True(b.Equals(a))
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}
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func TestBoxEquals(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 5, Left: 5, Right: 15, Bottom: 15}
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b := Box{Top: 10, Left: 10, Right: 30, Bottom: 30}
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c := Box{Top: 5, Left: 5, Right: 15, Bottom: 15}
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assert.True(a.Equals(a))
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assert.True(a.Equals(c))
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assert.True(c.Equals(a))
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assert.False(a.Equals(b))
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assert.False(c.Equals(b))
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assert.False(b.Equals(a))
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assert.False(b.Equals(c))
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}
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func TestBoxIsBiggerThan(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 5, Left: 5, Right: 25, Bottom: 25}
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b := Box{Top: 10, Left: 10, Right: 20, Bottom: 20} // only half bigger
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c := Box{Top: 1, Left: 1, Right: 30, Bottom: 30} //bigger
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assert.True(a.IsBiggerThan(b))
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assert.False(a.IsBiggerThan(c))
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assert.True(c.IsBiggerThan(a))
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}
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func TestBoxIsSmallerThan(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 5, Left: 5, Right: 25, Bottom: 25}
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b := Box{Top: 10, Left: 10, Right: 20, Bottom: 20} // only half bigger
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c := Box{Top: 1, Left: 1, Right: 30, Bottom: 30} //bigger
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assert.False(a.IsSmallerThan(b))
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assert.True(a.IsSmallerThan(c))
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assert.False(c.IsSmallerThan(a))
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}
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func TestBoxGrow(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 1, Left: 2, Right: 15, Bottom: 15}
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b := Box{Top: 4, Left: 5, Right: 30, Bottom: 35}
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c := a.Grow(b)
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assert.False(c.Equals(b))
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assert.False(c.Equals(a))
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assert.Equal(1, c.Top)
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assert.Equal(2, c.Left)
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assert.Equal(30, c.Right)
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assert.Equal(35, c.Bottom)
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}
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func TestBoxFit(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 64, Left: 64, Right: 192, Bottom: 192}
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b := Box{Top: 16, Left: 16, Right: 256, Bottom: 170}
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c := Box{Top: 16, Left: 16, Right: 170, Bottom: 256}
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fab := a.Fit(b)
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assert.Equal(a.Left, fab.Left)
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assert.Equal(a.Right, fab.Right)
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assert.True(fab.Top < fab.Bottom)
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assert.True(fab.Left < fab.Right)
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assert.True(math.Abs(b.Aspect()-fab.Aspect()) < 0.02)
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fac := a.Fit(c)
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assert.Equal(a.Top, fac.Top)
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assert.Equal(a.Bottom, fac.Bottom)
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assert.True(math.Abs(c.Aspect()-fac.Aspect()) < 0.02)
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}
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func TestBoxConstrain(t *testing.T) {
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assert := assert.New(t)
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a := Box{Top: 64, Left: 64, Right: 192, Bottom: 192}
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b := Box{Top: 16, Left: 16, Right: 256, Bottom: 170}
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c := Box{Top: 16, Left: 16, Right: 170, Bottom: 256}
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cab := a.Constrain(b)
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assert.Equal(64, cab.Top)
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assert.Equal(64, cab.Left)
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assert.Equal(192, cab.Right)
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assert.Equal(170, cab.Bottom)
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cac := a.Constrain(c)
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assert.Equal(64, cac.Top)
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assert.Equal(64, cac.Left)
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assert.Equal(170, cac.Right)
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assert.Equal(192, cac.Bottom)
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}
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func TestBoxOuterConstrain(t *testing.T) {
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assert := assert.New(t)
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box := Box{0, 0, 100, 100}
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canvas := Box{5, 5, 95, 95}
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taller := Box{-10, 5, 50, 50}
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c := canvas.OuterConstrain(box, taller)
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assert.Equal(15, c.Top, c.String())
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assert.Equal(5, c.Left, c.String())
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assert.Equal(95, c.Right, c.String())
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assert.Equal(95, c.Bottom, c.String())
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wider := Box{5, 5, 110, 50}
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d := canvas.OuterConstrain(box, wider)
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assert.Equal(5, d.Top, d.String())
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assert.Equal(5, d.Left, d.String())
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assert.Equal(85, d.Right, d.String())
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assert.Equal(95, d.Bottom, d.String())
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}
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func TestBoxShift(t *testing.T) {
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assert := assert.New(t)
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b := Box{
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Top: 5,
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Left: 5,
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Right: 10,
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Bottom: 10,
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}
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shifted := b.Shift(1, 2)
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assert.Equal(7, shifted.Top)
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assert.Equal(6, shifted.Left)
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assert.Equal(11, shifted.Right)
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assert.Equal(12, shifted.Bottom)
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}
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