Test: balancer / auth / controller in pkg

pkg/balancer/roundrobin_test.go

@@ -0,0 +1,42 @@
+package balancer
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestRoundRobin_NextIndex(t *testing.T) {
+	a := assert.New(t)
+	r := &RoundRobin{}
+	total := 5
+	for i := 1; i < total; i++ {
+		a.Equal(i, r.NextIndex(total))
+	}
+	for i := 0; i < total; i++ {
+		a.Equal(i, r.NextIndex(total))
+	}
+}
+
+func TestRoundRobin_NextPeer(t *testing.T) {
+	a := assert.New(t)
+	r := &RoundRobin{}
+
+	// not slice
+	{
+		err, _ := r.NextPeer("s")
+		a.Equal(ErrInputNotSlice, err)
+	}
+
+	// no nodes
+	{
+		err, _ := r.NextPeer([]string{})
+		a.Equal(ErrNoAvaliableNode, err)
+	}
+
+	// pass
+	{
+		err, res := r.NextPeer([]string{"a"})
+		a.NoError(err)
+		a.Equal("a", res.(string))
+	}
+}