storage: add storage with static clients

storage/memory/static_clients_test.go

@@ -0,0 +1,48 @@
+package memory
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/coreos/poke/storage"
+)
+
+func TestStaticClients(t *testing.T) {
+	s := New()
+
+	c1 := storage.Client{ID: "foo", Secret: "foo_secret"}
+	c2 := storage.Client{ID: "bar", Secret: "bar_secret"}
+	s.CreateClient(c1)
+	s2 := storage.WithStaticClients(s, []storage.Client{c2})
+
+	tests := []struct {
+		id         string
+		s          storage.Storage
+		wantErr    bool
+		wantClient storage.Client
+	}{
+		{"foo", s, false, c1},
+		{"bar", s, true, storage.Client{}},
+		{"foo", s2, true, storage.Client{}},
+		{"bar", s2, false, c2},
+	}
+
+	for i, tc := range tests {
+		gotClient, err := tc.s.GetClient(tc.id)
+		if err != nil {
+			if !tc.wantErr {
+				t.Errorf("case %d: GetClient(%q) %v", i, tc.id, err)
+			}
+			continue
+		}
+
+		if tc.wantErr {
+			t.Errorf("case %d: GetClient(%q) expected error", i, tc.id)
+			continue
+		}
+
+		if !reflect.DeepEqual(tc.wantClient, gotClient) {
+			t.Errorf("case %d: expected=%#v got=%#v", i, tc.wantClient, gotClient)
+		}
+	}
+}