Create UTs to cover DB calls

This change pretends to increase the code coverage creating Unit
Tests for the interactions with the Databases.

Change-Id: I3b78ebe8ddb131e3c06bcee0065ad5eabeed5677
Signed-off-by: Victor Morales <victor.morales@intel.com>
Issue-ID: MULTICLOUD-301

1 files changed, 65 insertions, 0 deletions

diff --git a/src/k8splugin/db/testing.go b/src/k8splugin/db/testing.go
new file mode 100644
index 00000000..672fcbfb
--- /dev/null
+++ b/src/k8splugin/db/testing.go
@@ -0,0 +1,65 @@
+// +build unit
+
+/*
+Copyright 2018 Intel Corporation.
+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 db
+
+import (
+	"github.com/hashicorp/consul/api"
+)
+
+//Creating an embedded interface via anonymous variable
+//This allows us to make mockDB satisfy the DatabaseConnection
+//interface even if we are not implementing all the methods in it
+type MockDB struct {
+	Store
+	Items api.KVPairs
+	Err   error
+}
+
+func (m *MockDB) Create(key string, value string) error {
+	return m.Err
+}
+
+func (m *MockDB) Read(key string) (string, error) {
+	if m.Err != nil {
+		return "", m.Err
+	}
+
+	for _, kvpair := range m.Items {
+		if kvpair.Key == key {
+			return string(kvpair.Value), nil
+		}
+	}
+
+	return "", nil
+}
+
+func (m *MockDB) Delete(key string) error {
+	return m.Err
+}
+
+func (m *MockDB) ReadAll(prefix string) ([]string, error) {
+	if m.Err != nil {
+		return []string{}, m.Err
+	}
+
+	var res []string
+
+	for _, keypair := range m.Items {
+		res = append(res, keypair.Key)
+	}
+
+	return res, nil
+}