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package pool
import (
"github.com/stretchr/testify/assert"
"testing"
)
func TestPool_Add(t *testing.T) {
p := &Pool{
Max: 10,
Value: 3,
}
p.Add(4)
}
func TestPool_Add_Overflows(t *testing.T) {
shad := &Pool{
Max: 5,
Value: 0,
}
dist := &Pool{
OverflowsTo: shad,
Max: 5,
Value: 0,
}
dist.Add(8)
assert.Equal(t, shad.Value, 3)
}
func TestPool_Subtract(t *testing.T) {
p := &Pool{
Max: 10,
Value: 8,
}
p.Subtract(6)
assert.Equal(t, 2, p.Value)
}
func TestPool_Subtract_Empties(t *testing.T) {
p := &Pool{
Max: 10,
Value: 4,
}
p.Subtract(8)
assert.Equal(t, 0, p.Value)
}
func TestPool_Subtract_Flows(t *testing.T) {
dest := &Pool{
Value: 0,
Max: Infinite,
}
p := &Pool{
SubtractsTo: dest,
Max: Infinite,
Value: 10,
}
p.Subtract(8)
assert.Equal(t, 8, dest.Value)
assert.Equal(t, 2, p.Value)
}
func TestPool_Subtract_Flows_Empties(t *testing.T) {
dest := &Pool{
Value: 0,
Max: Infinite,
}
p := &Pool{
SubtractsTo: dest,
Max: Infinite,
Value: 5,
}
p.Subtract(8)
assert.Equal(t, 5, dest.Value)
assert.Equal(t, 0, p.Value)
}
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