added mock adapter for new VPP stats

Change-Id: I9d6cf28fcde79ba648321cbd92941ee7ef8e0812
Signed-off-by: Vladimir Lavor <vlavor@cisco.com>

3 files changed, 75 insertions, 0 deletions

diff --git a/adapter/mock/mock_stats_adapter.go b/adapter/mock/mock_stats_adapter.go
new file mode 100644
index 0000000..aba93a2
--- /dev/null
+++ b/adapter/mock/mock_stats_adapter.go
@@ -0,0 +1,61 @@
+// Copyright (c) 2019 Cisco and/or its affiliates.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at:
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package mock is an alternative VPP stats adapter aimed for unit/integration testing where the
+// actual communication with VPP is not demanded.
+
+package mock
+
+import (
+	"git.fd.io/govpp.git/adapter"
+)
+
+// StatsAdapter simulates VPP stats socket from which stats can be read
+type StatsAdapter struct {
+	entries []*adapter.StatEntry
+}
+
+// NewStatsAdapter returns a new mock stats adapter.
+func NewStatsAdapter() *StatsAdapter {
+	return &StatsAdapter{}
+}
+
+// Connect mocks client connection to the stats API.
+func (a *StatsAdapter) Connect() error {
+	return nil
+}
+
+// Disconnect mocks client connection termination.
+func (a *StatsAdapter) Disconnect() error {
+	return nil
+}
+
+// ListStats mocks name listing for all stats.
+func (a *StatsAdapter) ListStats(patterns ...string) ([]string, error) {
+	var statNames []string
+	for _, stat := range a.entries {
+		statNames = append(statNames, stat.Name)
+	}
+	return statNames, nil
+}
+
+// DumpStats mocks all stat entries dump.
+func (a *StatsAdapter)  DumpStats(patterns ...string) ([]*adapter.StatEntry, error) {
+	return a.entries, nil
+}
+
+// MockStats replaces current values of all supported stats by provided value
+func (a *StatsAdapter) MockStats(stats []*adapter.StatEntry) {
+	a.entries = stats
+}
\ No newline at end of file
diff --git a/adapter/mock/mock_adapter.go b/adapter/mock/mock_vpp_adapter.go
index 9783651..9783651 100644
--- a/adapter/mock/mock_adapter.go
+++ b/adapter/mock/mock_vpp_adapter.go
diff --git a/adapter/stats_api.go b/adapter/stats_api.go
index 8815aae..4a3f130 100644
--- a/adapter/stats_api.go
+++ b/adapter/stats_api.go
@@ -1,3 +1,17 @@
+// Copyright (c) 2019 Cisco and/or its affiliates.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at:
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package adapter
 
 // StatsAPI provides connection to VPP stats API.