consul: Adding tests for endpoint method

consul/kvs_endpoint.go

@@ -14,8 +14,8 @@ type KVS struct {
 
 // Apply is used to apply a KVS request to the data store. This should
 // only be used for operations that modify the data
-func (c *Catalog) Apply(args *structs.KVSRequest, reply *bool) error {
-	if done, err := c.srv.forward("KVS.Apply", args.Datacenter, args, reply); done {
+func (k *KVS) Apply(args *structs.KVSRequest, reply *bool) error {
+	if done, err := k.srv.forward("KVS.Apply", args.Datacenter, args, reply); done {
 		return err
 	}
 	defer metrics.MeasureSince([]string{"consul", "kvs", "apply"}, time.Now())
@@ -26,9 +26,9 @@ func (c *Catalog) Apply(args *structs.KVSRequest, reply *bool) error {
 	}
 
 	// Apply the update
-	resp, err := c.srv.raftApply(structs.KVSRequestType, args)
+	resp, err := k.srv.raftApply(structs.KVSRequestType, args)
 	if err != nil {
-		c.srv.logger.Printf("[ERR] consul.kvs: Apply failed: %v", err)
+		k.srv.logger.Printf("[ERR] consul.kvs: Apply failed: %v", err)
 		return err
 	}
 	if respErr, ok := resp.(error); ok {

consul/kvs_endpoint_test.go

@@ -0,0 +1,65 @@
+package consul
+
+import (
+	"github.com/hashicorp/consul/consul/structs"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestKVS_Apply(t *testing.T) {
+	dir1, s1 := testServer(t)
+	defer os.RemoveAll(dir1)
+	defer s1.Shutdown()
+	client := rpcClient(t, s1)
+	defer client.Close()
+
+	// Wait for leader
+	time.Sleep(100 * time.Millisecond)
+
+	arg := structs.KVSRequest{
+		Datacenter: "dc1",
+		Op:         structs.KVSSet,
+		DirEnt: structs.DirEntry{
+			Key:   "test",
+			Flags: 42,
+			Value: []byte("test"),
+		},
+	}
+	var out bool
+	if err := client.Call("KVS.Apply", &arg, &out); err != nil {
+		t.Fatalf("err: %v", err)
+	}
+
+	// Verify
+	state := s1.fsm.State()
+	_, d, err := state.KVSGet("test")
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	if d == nil {
+		t.Fatalf("should not be nil")
+	}
+
+	// Do a check and set
+	arg.Op = structs.KVSCAS
+	arg.DirEnt.ModifyIndex = d.ModifyIndex
+	arg.DirEnt.Flags = 43
+	if err := client.Call("KVS.Apply", &arg, &out); err != nil {
+		t.Fatalf("err: %v", err)
+	}
+
+	// Check this was applied
+	if out != true {
+		t.Fatalf("bad: %v", out)
+	}
+
+	// Verify
+	_, d, err = state.KVSGet("test")
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	if d.Flags != 43 {
+		t.Fatalf("bad: %v", d)
+	}
+}