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calc_test.go
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calc_test.go
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package maprobe
import (
"fmt"
"testing"
)
type calcTest struct {
values []float64
sum float64
min float64
max float64
avg float64
median float64
count float64
}
var calcTests = []calcTest{
{
values: []float64{},
sum: 0,
min: 0,
max: 0,
avg: 0,
median: 0,
count: 0,
},
{
values: []float64{3.3},
sum: 3.3,
min: 3.3,
max: 3.3,
avg: 3.3,
median: 3.3,
count: 1,
},
{
values: []float64{1, 3, 2},
sum: 6,
min: 1,
max: 3,
avg: 2,
median: 2,
count: 3,
},
{
values: []float64{1, 3, 2, 4},
sum: 10,
min: 1,
max: 4,
avg: 2.5,
median: 2.5,
count: 4,
},
{
values: []float64{8, 7.4, 2.2, 3.9, 0, 9.1, 6.2},
sum: 36.800000000000004,
min: 0,
max: 9.1,
avg: 5.257142857142858,
median: 6.2,
count: 7,
},
}
func f2s(f float64) string {
return fmt.Sprintf("%.6f", f)
}
func TestCalc(t *testing.T) {
for _, ts := range calcTests {
v := ts.values
if r := sum(v); f2s(r) != f2s(ts.sum) {
t.Errorf("failed to calc sum(%v)=%f != %f", r, v, ts.sum)
}
if r := min(v); f2s(r) != f2s(ts.min) {
t.Errorf("failed to calc min(%v)=%f != %f", r, v, ts.min)
}
if r := max(v); f2s(r) != f2s(ts.max) {
t.Errorf("failed to calc max(%v)=%f != %f", r, v, ts.max)
}
if r := avg(v); f2s(r) != f2s(ts.avg) {
t.Errorf("failed to calc avg(%v)=%f != %f", r, v, ts.avg)
}
if r := median(v); f2s(r) != f2s(ts.median) {
t.Errorf("failed to calc median(%v)=%f != %f", r, v, ts.median)
}
if r := count(v); f2s(r) != f2s(ts.count) {
t.Errorf("failed to calc count(%v)=%f != %f", r, v, ts.count)
}
}
}