pkg: hide it by moving to _pkg.dev

The idea here is to preserve the history of `dev` branch development and its
code when merging with the `master`. Later this code could be moved into the
masters code where appropriate.

_pkg.dev/wire/util/fixed8/fixed8_test.go

@@ -0,0 +1,85 @@
+package fixed8
+
+import (
+	"strconv"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFixed8Value(t *testing.T) {
+
+	input := int64(12)
+	assert.Equal(t, float64(input), FromInt(input).Value())
+
+}
+func TestFixed8Add(t *testing.T) {
+
+	a := FromInt(1)
+	b := FromInt(2)
+
+	c := a.Add(b)
+	expected := float64(3)
+	assert.Equal(t, expected, c.Value())
+
+}
+func TestFixed8AddRecursive(t *testing.T) {
+
+	a := FromInt(1)
+	sum := int64(1)
+
+	for i := int64(2); i <= 10; i++ {
+
+		sum += i
+		b := FromInt(i)
+		c := a.Add(b)
+		a = c // 1 + 2 + 3 ... + 10
+	}
+	assert.Equal(t, float64(sum), a.Value())
+
+}
+
+func TestFromInt(t *testing.T) {
+
+	inputs := []int64{12, 23, 100, 456789}
+
+	for _, val := range inputs {
+		assert.Equal(t, Fixed8(val*decimals), FromInt(val))
+		assert.Equal(t, float64(val), FromInt(val).Value())
+	}
+
+	for _, val := range inputs {
+		valString := strconv.FormatInt(val, 10)
+		assert.Equal(t, valString, FromInt(val).String())
+	}
+
+}
+func TestFromFloat(t *testing.T) {
+	inputs := []float64{12.98, 23.87654333, 100.654322, 456789.12345665}
+
+	for _, val := range inputs {
+		assert.Equal(t, Fixed8(val*decimals), FromFloat(val))
+		assert.Equal(t, float64(val), FromFloat(val).Value())
+	}
+}
+func TestFromString(t *testing.T) {
+	inputs := []string{"9000", "100000000", "5", "10945", "20.45", "0.00000001"}
+
+	for _, val := range inputs {
+
+		n, err := FromString(val)
+		assert.Nil(t, err)
+		assert.Equal(t, val, n.String())
+
+	}
+
+	val := "123456789.12345678"
+	n, err := FromString(val)
+	assert.Nil(t, err)
+	assert.Equal(t, Fixed8(12345678912345678), n)
+
+	val = "901.2341"
+	n, err = FromString(val)
+	assert.Nil(t, err)
+	assert.Equal(t, Fixed8(90123410000), n)
+}