Testando envio de credenciais no corpo da request

__tests__/lhisp-oauth-client.test.ts

@@ -129,6 +129,35 @@ describe("lhisp-oauth-client", ()=>{
             data: `{"grant_type":"${defaultGrantValue}","scope":"EscopoCustom"}`,
         }));
     });
+
+    it("Shoud Get Access Token with Credentials on Request body", async ()=>{
+        const cli = getOauthClient({
+            ...baseClientParams,
+            sendAuthCredentialsOnRequestBody: true,
+        });
+        mockedAxios.request.mockReset();
+        mockedAxios.request.mockResolvedValueOnce({
+            data: mockedAccessToken
+        });
+
+        const now = Date.now();
+        const accessToken = await cli.getAccessToken();
+        expect(accessToken).toBeDefined();
+        expect(accessToken.token_type).toBe(mockedAccessToken.token_type);
+        expect(accessToken.access_token).toBe(mockedAccessToken.access_token);
+        expect(accessToken.expires_in).toBe(mockedAccessToken.expires_in);
+        expect(accessToken.scope).toBe(mockedAccessToken.scope);
+        expect(accessToken.created_at).toBeGreaterThanOrEqual(now);
+        expect(mockedAxios.request).toBeCalledWith(expect.objectContaining({
+            url: authUrl,
+            method: "POST",
+            headers: {
+                Authorization: basicAuth,
+                'Content-Type': contentTypeApplicationJson,
+            },
+            data: `{"grant_type":"${defaultGrantValue}","client_id":"${clientId}","client_secret":"${clientSecret}"}`,
+        }));
+    });
 });
 
 function getOauthClient(opt:LhispOauthClientConstructorParams=baseClientParams){