diff --git a/services/loopback/common/methods/client/specs/getAverageInvoiced.spec.js b/services/loopback/common/methods/client/specs/getAverageInvoiced.spec.js
index 0775423e0..2493c17b0 100644
--- a/services/loopback/common/methods/client/specs/getAverageInvoiced.spec.js
+++ b/services/loopback/common/methods/client/specs/getAverageInvoiced.spec.js
@@ -1,10 +1,11 @@
 const getAverageInvoiced = require('../getAverageInvoiced');
-const {rawSql} = require('../../../test-helpers/rawSql');
 const model = {
     remoteMethod: () => {}
 };
+let Loopback = require('../../../test-helpers/loopback');
+Loopback.init(model);
 
-rawSql(model);
+Loopback.rawSql(model);
 getAverageInvoiced(model);
 
 describe('client getAverageInvoiced()', () => {
diff --git a/services/loopback/common/methods/client/specs/getMana.spec.js b/services/loopback/common/methods/client/specs/getMana.spec.js
index 942eaaca0..940930eb5 100644
--- a/services/loopback/common/methods/client/specs/getMana.spec.js
+++ b/services/loopback/common/methods/client/specs/getMana.spec.js
@@ -1,10 +1,11 @@
 const getMana = require('../getMana');
-const {rawSql} = require('../../../test-helpers/rawSql');
 const model = {
     remoteMethod: () => {}
 };
+let Loopback = require('../../../test-helpers/loopback');
+Loopback.init(model);
 
-rawSql(model);
+Loopback.rawSql(model);
 getMana(model);
 
 describe('client getMana()', () => {
diff --git a/services/loopback/common/methods/item/clone.js b/services/loopback/common/methods/item/clone.js
index a3e9e38fc..f0a66d0d9 100644
--- a/services/loopback/common/methods/item/clone.js
+++ b/services/loopback/common/methods/item/clone.js
@@ -1,4 +1,4 @@
-var UserError = require('../../helpers').UserError;
+let UserError = require('../../helpers').UserError;
 
 module.exports = Self => {
     Self.remoteMethod('clone', {
diff --git a/services/loopback/common/methods/item/specs/clone.spec.js b/services/loopback/common/methods/item/specs/clone.spec.js
new file mode 100644
index 000000000..345b7f7e5
--- /dev/null
+++ b/services/loopback/common/methods/item/specs/clone.spec.js
@@ -0,0 +1,20 @@
+const clone = require('../clone');
+const model = {
+    remoteMethod: () => {}
+};
+let Loopback = require('../../../test-helpers/loopback');
+Loopback.init(model);
+
+Loopback.rawSql(model);
+clone(model);
+
+describe('item clone()', () => {
+    it('should', () => {
+        let itemFk = 1;
+        model.clone(itemFk)
+            .then(response => {
+                expect(response).toEqual('whatever');
+                done();
+            });
+    });
+});
diff --git a/services/loopback/common/methods/item/updateTaxes.js b/services/loopback/common/methods/item/updateTaxes.js
index 70a2511bc..e70af8ca2 100644
--- a/services/loopback/common/methods/item/updateTaxes.js
+++ b/services/loopback/common/methods/item/updateTaxes.js
@@ -25,7 +25,7 @@ module.exports = Self => {
         }
     });
 
-    Self.updateTaxes = async (id, taxes) => {
+    Self.updateTaxes = async(id, taxes) => {
         let promises = [];
         for (let tax of taxes) {
             if (!tax.taxClassFk)
diff --git a/services/loopback/common/methods/ticket/specs/get-taxes.spec.js b/services/loopback/common/methods/ticket/specs/get-taxes.spec.js
index f7a4fbb70..179b8907c 100644
--- a/services/loopback/common/methods/ticket/specs/get-taxes.spec.js
+++ b/services/loopback/common/methods/ticket/specs/get-taxes.spec.js
@@ -1,10 +1,11 @@
 const getTaxes = require('../get-taxes');
-const {rawSql} = require('../../../test-helpers/rawSql');
 const model = {
     remoteMethod: () => {}
 };
+let Loopback = require('../../../test-helpers/loopback');
+Loopback.init(model);
 
-rawSql(model);
+Loopback.rawSql(model);
 getTaxes(model);
 
 describe('ticket getTaxes()', () => {
diff --git a/services/loopback/common/methods/ticket/specs/get-total.spec.js b/services/loopback/common/methods/ticket/specs/get-total.spec.js
index 73adcb87e..a42234194 100644
--- a/services/loopback/common/methods/ticket/specs/get-total.spec.js
+++ b/services/loopback/common/methods/ticket/specs/get-total.spec.js
@@ -1,10 +1,11 @@
 const getTotal = require('../get-total');
-const {rawSql} = require('../../../test-helpers/rawSql');
 const model = {
     remoteMethod: () => {}
 };
+let Loopback = require('../../../test-helpers/loopback');
+Loopback.init(model);
 
-rawSql(model);
+Loopback.rawSql(model);
 getTotal(model);
 
 describe('ticket getTotal()', () => {
diff --git a/services/loopback/common/methods/ticket/specs/get-volume.spec.js b/services/loopback/common/methods/ticket/specs/get-volume.spec.js
index dcb01ac7f..99e1d4a63 100644
--- a/services/loopback/common/methods/ticket/specs/get-volume.spec.js
+++ b/services/loopback/common/methods/ticket/specs/get-volume.spec.js
@@ -1,10 +1,11 @@
 const getVolume = require('../get-volume');
-const {rawSql} = require('../../../test-helpers/rawSql');
 const model = {
     remoteMethod: () => {}
 };
+let Loopback = require('../../../test-helpers/loopback');
+Loopback.init(model);
 
-rawSql(model);
+Loopback.rawSql(model);
 getVolume(model);
 
 describe('ticket getVolume()', () => {
@@ -16,4 +17,4 @@ describe('ticket getVolume()', () => {
                 done();
             });
     });
-});
\ No newline at end of file
+});
diff --git a/services/loopback/common/test-helpers/loopback.js b/services/loopback/common/test-helpers/loopback.js
new file mode 100644
index 000000000..c6a11cb6d
--- /dev/null
+++ b/services/loopback/common/test-helpers/loopback.js
@@ -0,0 +1,39 @@
+module.exports = {
+    importLoopbackModules: function() {
+        this.rawSqlModule = require('../methods/vnModel/rawSql.js');
+        this.findOneModule = require('../methods/vnModel/rawSql.js');
+    },
+
+    /**
+     * Initializes DataSource once
+     * @param {Object} Self - Model
+     */
+    init: function(Self) {
+        if (!this.dataSource)
+            this.connect();
+
+        Self.dataSource = this.dataSource;
+
+        this.importLoopbackModules();
+    },
+
+    /**
+     * Instantiate Loopback DataSource
+     */
+    connect: function() {
+        let DataSource = require('loopback-datasource-juggler').DataSource;
+        let dataSourceConfig = {
+            connector: 'mysql',
+            host: 'localhost',
+            user: 'root',
+            password: 'root',
+            database: 'salix'
+        };
+
+        this.dataSource = new DataSource(dataSourceConfig);
+    },
+
+    rawSql: function(Self) {
+        this.rawSqlModule(Self);
+    }
+};
diff --git a/services/loopback/common/test-helpers/rawSql.js b/services/loopback/common/test-helpers/rawSql.js
deleted file mode 100644
index 880520321..000000000
--- a/services/loopback/common/test-helpers/rawSql.js
+++ /dev/null
@@ -1,14 +0,0 @@
-module.exports.rawSql = Self => {
-    const DataSource = require('loopback-datasource-juggler').DataSource;
-    const rawSql = require('../methods/vnModel/rawSql.js');
-    const dataSourceConfig = {
-        connector: 'mysql',
-        host: 'localhost',
-        user: 'root',
-        password: 'root',
-        database: 'salix'
-    };
-    const dataSource = new DataSource(dataSourceConfig);
-    Self.dataSource = dataSource;
-    rawSql(Self);
-};