Add feature to hold configs in filesystem

This patch adds feature to hold config files
on filesystem and adds all unit tests to have
enough coverage for milestones.

Change-Id: Icd6f3dc93e0f419500f82f0a6ccd62e500dfc918
Issue-ID: MUSIC-42
Signed-off-by: Shashank Kumar Shankar <shashank.kumar.shankar@intel.com>

1 files changed, 234 insertions, 0 deletions

diff --git a/src/dkv/api/configHandlers_test.go b/src/dkv/api/configHandlers_test.go
new file mode 100644
index 0000000..e2f796a
--- /dev/null
+++ b/src/dkv/api/configHandlers_test.go
@@ -0,0 +1,234 @@
+/*
+ * Copyright 2018 Intel Corporation, Inc
+ *
+ * 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 api
+
+import (
+	"bytes"
+	"encoding/json"
+	"github.com/gorilla/mux"
+	"github.com/stretchr/testify/assert"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func RouterConfig() *mux.Router {
+	router := mux.NewRouter()
+	router.HandleFunc("/v1/config", HandleConfigUpload).Methods("POST")
+	router.HandleFunc("/v1/config/{token}/{filename}", HandleConfigGet).Methods("GET")
+	router.HandleFunc("/v1/config/{token}/{filename}", HandleConfigDelete).Methods("DELETE")
+	router.HandleFunc("/v1/config/load", HandleConfigLoad).Methods("POST")
+	router.HandleFunc("/v1/config/load-default", HandleDefaultConfigLoad).Methods("GET")
+	return router
+}
+
+func TestHandleConfigGet(t *testing.T) {
+	oldDirectory := Directory
+	Directory = &FakeDirectory{}
+
+	defer func() { Directory = oldDirectory }()
+
+	request, _ := http.NewRequest("GET", "/v1/config/token1/filename1", nil)
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 200, response.Code, "200 response is expected")
+}
+func TestHandleConfigDelete(t *testing.T) {
+	oldDirectory := Directory
+	Directory = &FakeDirectory{}
+
+	defer func() { Directory = oldDirectory }()
+
+	request, _ := http.NewRequest("DELETE", "/v1/config/token1/filename1", nil)
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 200, response.Code, "200 response is expected")
+}
+
+func TestHandleConfigDelete_err(t *testing.T) {
+	oldDirectory := Directory
+	Directory = &FakeDirectoryErr{}
+
+	defer func() { Directory = oldDirectory }()
+
+	request, _ := http.NewRequest("DELETE", "/v1/config/token1/filename1", nil)
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 500, response.Code, "500 response is expected")
+}
+
+func TestHandleConfigPOST(t *testing.T) {
+	oldConsul := Consul
+	oldKeyValues := KeyValues
+
+	Consul = &FakeConsul{}
+	KeyValues = &FakeKeyValues{}
+
+	defer func() {
+		Consul = oldConsul
+		KeyValues = oldKeyValues
+	}()
+
+	body := &LoadConfigBody{
+		Token:     "test",
+		Filename:  "test",
+		Subdomain: "test",
+	}
+
+	b, _ := json.Marshal(body)
+
+	// json Marshal converts struct to json in Bytes. But bytes doesn't have
+	// io reader needed. So the byte is passed to NewBuffer.
+	request, _ := http.NewRequest("POST", "/v1/config/load", bytes.NewBuffer(b))
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 200, response.Code, "200 response is expected")
+}
+
+func TestHandleConfigPOST_only_token(t *testing.T) {
+	oldConsul := Consul
+	oldKeyValues := KeyValues
+
+	Consul = &FakeConsul{}
+	KeyValues = &FakeKeyValues{}
+
+	defer func() {
+		Consul = oldConsul
+		KeyValues = oldKeyValues
+	}()
+
+	body := &LoadConfigBody{
+		Token:     "test",
+		Filename:  "",
+		Subdomain: "",
+	}
+
+	b, _ := json.Marshal(body)
+
+	// json Marshal converts struct to json in Bytes. But bytes doesn't have
+	// io reader needed. So the byte is passed to NewBuffer.
+	request, _ := http.NewRequest("POST", "/v1/config/load", bytes.NewBuffer(b))
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 200, response.Code, "200 response is expected")
+}
+
+func TestHandleConfigPOST_no_body(t *testing.T) {
+	oldConsul := Consul
+	oldKeyValues := KeyValues
+
+	Consul = &FakeConsul{}
+	KeyValues = &FakeKeyValues{}
+
+	defer func() {
+		Consul = oldConsul
+		KeyValues = oldKeyValues
+	}()
+
+	body := &LoadConfigBody{}
+
+	b, _ := json.Marshal(body)
+
+	request, _ := http.NewRequest("POST", "/v1/config/load", bytes.NewBuffer(b))
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 400, response.Code, "400 response is expected")
+}
+
+func TestHandleConfigPOST_ConsulError(t *testing.T) {
+	oldConsul := Consul
+	oldKeyValues := KeyValues
+
+	Consul = &FakeConsulErr{}
+	KeyValues = &FakeKeyValuesErr{}
+
+	defer func() {
+		Consul = oldConsul
+		KeyValues = oldKeyValues
+	}()
+
+	body := &LoadConfigBody{
+		Token:     "test",
+		Filename:  "test",
+		Subdomain: "test",
+	}
+
+	b, _ := json.Marshal(body)
+
+	request, _ := http.NewRequest("POST", "/v1/config/load", bytes.NewBuffer(b))
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 500, response.Code, "500 response is expected")
+}
+
+func TestHandleConfigUpload_err(t *testing.T) {
+	oldDirectory := Directory
+	Directory = &FakeDirectory{}
+
+	defer func() { Directory = oldDirectory }()
+
+	request, _ := http.NewRequest("POST", "/v1/config", nil)
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 500, response.Code, "500 response is expected")
+}
+
+func TestHandleDefaultConfigLoad(t *testing.T) {
+	oldConsul := Consul
+	oldKeyValues := KeyValues
+
+	Consul = &FakeConsul{}
+	KeyValues = &FakeKeyValues{}
+
+	defer func() {
+		Consul = oldConsul
+		KeyValues = oldKeyValues
+	}()
+
+	request, _ := http.NewRequest("GET", "/v1/config/load-default", nil)
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 200, response.Code, "200 response is expected")
+}
+
+func TestHandleDefaultConfigLoad_err(t *testing.T) {
+	oldConsul := Consul
+	oldKeyValues := KeyValues
+
+	Consul = &FakeConsul{}
+	KeyValues = &FakeKeyValuesErr{}
+
+	defer func() {
+		Consul = oldConsul
+		KeyValues = oldKeyValues
+	}()
+
+	request, _ := http.NewRequest("GET", "/v1/config/load-default", nil)
+	response := httptest.NewRecorder()
+	RouterConfig().ServeHTTP(response, request)
+
+	assert.Equal(t, 500, response.Code, "500 response is expected")
+}