initial import

core/mathx/proba_test.go

@@ -0,0 +1,24 @@
+package mathx
+
+import (
+	"math"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTrueOnProba(t *testing.T) {
+	const proba = math.Pi / 10
+	const total = 100000
+	const epsilon = 0.05
+	var count int
+	p := NewProba()
+	for i := 0; i < total; i++ {
+		if p.TrueOnProba(proba) {
+			count++
+		}
+	}
+
+	ratio := float64(count) / float64(total)
+	assert.InEpsilon(t, proba, ratio, epsilon)
+}