diff --git a/__tests__/lhisp-oauth-client.test.ts b/__tests__/lhisp-oauth-client.test.ts
index 4a1434b..487fbce 100644
--- a/__tests__/lhisp-oauth-client.test.ts
+++ b/__tests__/lhisp-oauth-client.test.ts
@@ -13,7 +13,8 @@ const clientSecret = "testClientSecret";
 const baseClientParams = { apiUrl, authUrl, clientId, clientSecret };
 const basicAuth = `Basic ${Buffer.from(`${clientId}:${clientSecret}`).toString('base64')}`;
 const contentTypeApplicationJson = "application/json";
-const defaultGrantType='{"grant_type":"client_credentials"}';
+const defaultGrantValue='client_credentials';
+const defaultGrantType=`{"grant_type":"${defaultGrantValue}"}`;
 
 describe("lhisp-oauth-client", ()=>{
     it("Shoud Get Access Token with Standard Config", async ()=>{
@@ -99,6 +100,35 @@ describe("lhisp-oauth-client", ()=>{
             data: '{"grant_type":"PermissaoCustom"}',
         }));
     });
+
+    it("Shoud Get Access Token with Auth Scope", async ()=>{
+        const cli = getOauthClient({
+            ...baseClientParams,
+            authScope: 'EscopoCustom',
+        });
+        mockedAxios.request.mockReset();
+        mockedAxios.request.mockResolvedValueOnce({
+            data: mockedAccessToken
+        });
+
+        const now = Date.now();
+        const accessToken = await cli.getAccessToken();
+        expect(accessToken).toBeDefined();
+        expect(accessToken.token_type).toBe(mockedAccessToken.token_type);
+        expect(accessToken.access_token).toBe(mockedAccessToken.access_token);
+        expect(accessToken.expires_in).toBe(mockedAccessToken.expires_in);
+        expect(accessToken.scope).toBe(mockedAccessToken.scope);
+        expect(accessToken.created_at).toBeGreaterThanOrEqual(now);
+        expect(mockedAxios.request).toBeCalledWith(expect.objectContaining({
+            url: authUrl,
+            method: "POST",
+            headers: {
+                Authorization: basicAuth,
+                'Content-Type': contentTypeApplicationJson,
+            },
+            data: `{"grant_type":"${defaultGrantValue}","scope":"EscopoCustom"}`,
+        }));
+    });
 });
 
 function getOauthClient(opt:LhispOauthClientConstructorParams=baseClientParams){