move selector

selector/strategy_test.go

@@ -0,0 +1,58 @@
+package selector
+
+import (
+	"os"
+	"testing"
+
+	"github.com/micro/go-micro/v2/registry"
+)
+
+func TestStrategies(t *testing.T) {
+	testData := []*registry.Service{
+		{
+			Name:    "test1",
+			Version: "latest",
+			Nodes: []*registry.Node{
+				{
+					Id:      "test1-1",
+					Address: "10.0.0.1:1001",
+				},
+				{
+					Id:      "test1-2",
+					Address: "10.0.0.2:1002",
+				},
+			},
+		},
+		{
+			Name:    "test1",
+			Version: "default",
+			Nodes: []*registry.Node{
+				{
+					Id:      "test1-3",
+					Address: "10.0.0.3:1003",
+				},
+				{
+					Id:      "test1-4",
+					Address: "10.0.0.4:1004",
+				},
+			},
+		},
+	}
+
+	for name, strategy := range map[string]Strategy{"random": Random, "roundrobin": RoundRobin} {
+		next := strategy(testData)
+		counts := make(map[string]int)
+
+		for i := 0; i < 100; i++ {
+			node, err := next()
+			if err != nil {
+				t.Fatal(err)
+			}
+			counts[node.Id]++
+		}
+
+		if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
+			t.Logf("%s: %+v\n", name, counts)
+		}
+	}
+}