Adding bucket encryption test (#1687)

Makefile

@@ -72,7 +72,7 @@ test-integration:
 	@(docker network create --subnet=173.18.0.0/29 mynet123)
 	@echo "docker run with MinIO Version below:"
 	@echo $(MINIO_VERSION)
-	@(docker run -v /data1 -v /data2 -v /data3 -v /data4 --net=mynet123 -d --name minio --rm -p 9000:9000 $(MINIO_VERSION) server /data{1...4} && sleep 5)
+	@(docker run -v /data1 -v /data2 -v /data3 -v /data4 --net=mynet123 -d --name minio --rm -p 9000:9000 -e MINIO_KMS_SECRET_KEY=my-minio-key:OSMM+vkKUTCvQs9YL/CVMIMt43HFhkUpqJxTmGl6rYw= $(MINIO_VERSION) server /data{1...4} && sleep 5)
 	@(docker run --net=mynet123 --ip=173.18.0.3 --name pgsqlcontainer --rm -p 5432:5432 -e POSTGRES_PASSWORD=password -d postgres && sleep 5)
 	@echo "execute test and get coverage"
 	@(cd integration && go test -coverpkg=../restapi -c -tags testrunmain . && mkdir -p coverage && ./integration.test -test.run "^Test*" -test.coverprofile=coverage/system.out)

integration/user_api_bucket_test.go

@@ -2941,3 +2941,65 @@ func TestSetBucketVersioning(t *testing.T) {
 	}
 	assert.Equal(false, result.IsVersioned, result)
 }
+
+func EnableBucketEncryption(bucketName string, encType string, kmsKeyID string) (*http.Response, error) {
+	/*
+		Helper function to enable bucket encryption
+		HTTP Verb: POST
+		URL: /buckets/{bucket_name}/encryption/enable
+		Body:
+		{
+			"encType":"sse-s3",
+			"kmsKeyID":""
+		}
+	*/
+	requestDataAdd := map[string]interface{}{
+		"encType":  encType,
+		"kmsKeyID": kmsKeyID,
+	}
+	requestDataJSON, _ := json.Marshal(requestDataAdd)
+	requestDataBody := bytes.NewReader(requestDataJSON)
+	request, err := http.NewRequest(
+		"POST", "http://localhost:9090/api/v1/buckets/"+bucketName+"/encryption/enable", requestDataBody)
+	if err != nil {
+		log.Println(err)
+	}
+	request.Header.Add("Cookie", fmt.Sprintf("token=%s", token))
+	request.Header.Add("Content-Type", "application/json")
+
+	// Performing the call
+	client := &http.Client{
+		Timeout: 2 * time.Second,
+	}
+	response, err := client.Do(request)
+	return response, err
+}
+
+func TestEnableBucketEncryption(t *testing.T) {
+
+	// Variables
+	assert := assert.New(t)
+	bucketName := "test-enable-bucket-encryption"
+	locking := false
+	versioning := false
+	encType := "sse-s3"
+	kmsKeyID := ""
+
+	// 1. Add bucket
+	if !BucketGotAdded(bucketName, locking, versioning, nil, nil, assert, 201) {
+		return
+	}
+
+	// 2. Enable Bucket's Encryption
+	resp, err := EnableBucketEncryption(bucketName, encType, kmsKeyID)
+	assert.Nil(err)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	if resp != nil {
+		assert.Equal(
+			200, resp.StatusCode, "Status Code is incorrect")
+	}
+
+}