ev/pkg/math/math_test.go
2022-08-10 10:09:58 -06:00

94 lines
1.7 KiB
Go

package math_test
import (
"log"
"testing"
"github.com/matryer/is"
"github.com/sour-is/ev/pkg/es"
"github.com/sour-is/ev/pkg/math"
)
func TestMath(t *testing.T) {
is := is.New(t)
is.Equal(5, math.Abs(-5))
is.Equal(math.Abs(5), math.Abs(-5))
is.Equal(10, math.Max(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
is.Equal(1, math.Min(1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
is.Equal(1, math.Min(89, 71, 54, 48, 49, 1, 72, 88, 25, 69))
is.Equal(89, math.Max(89, 71, 54, 48, 49, 1, 72, 88, 25, 69))
is.Equal(0.9348207729, math.Max(
0.3943310720,
0.1090868377,
0.9348207729,
0.3525527584,
0.4359833682,
0.7958538081,
0.1439352569,
0.1547311967,
0.6403818871,
0.8618832818,
))
is.Equal(0.1090868377, math.Min(
0.3943310720,
0.1090868377,
0.9348207729,
0.3525527584,
0.4359833682,
0.7958538081,
0.1439352569,
0.1547311967,
0.6403818871,
0.8618832818,
))
}
func TestPagerBox(t *testing.T) {
is := is.New(t)
tests := []struct {
first uint64
last uint64
pos int64
n int64
start uint64
count int64
}{
{1, 10, 0, 10, 1, 10},
{1, 10, 0, 11, 1, 10},
{1, 5, 0, 10, 1, 5},
{1, 10, 4, 10, 5, 6},
{1, 10, 5, 10, 6, 5},
{1, 10, 0, -10, 0, 0},
{1, 10, 1, -1, 2, -1},
{1, 10, 1, -10, 2, -1},
{1, 10, -1, 1, 10, 1},
{1, 10, -2, 10, 9, 2},
{1, 10, -1, -1, 10, -1},
{1, 10, -2, -10, 9, -9},
{1, 10, 0, -10, 0, 0},
{1, 10, 10, 10, 0, 0},
{1, 10, 0, es.AllEvents, 1, 10},
{1, 10, -1, -es.AllEvents, 10, -10},
}
for _, tt := range tests {
start, count := math.PagerBox(tt.first, tt.last, tt.pos, tt.n)
if count > 0 {
log.Print(tt, "|", start, count, int64(start)+count-1)
} else {
log.Print(tt, "|", start, count, int64(start)+count+1)
}
is.Equal(start, tt.start)
is.Equal(count, tt.count)
}
}