diff --git a/__tests__/functions/databases/postgresql/verify.js b/__tests__/functions/databases/postgresql/verify.js
index 1b0cb05..a90a4cf 100644
--- a/__tests__/functions/databases/postgresql/verify.js
+++ b/__tests__/functions/databases/postgresql/verify.js
@@ -1,3 +1,62 @@
-describe('', () => {
-    
-}
\ No newline at end of file
+const verify = require("../../../../functions/databases/postgres/verify");
+
+describe("test for postgres", () => {
+  class FakeClient {
+    constructor() {
+      this.pgConnect = function() {
+        return new Promise((resolve, reject) => {
+          resolve({
+            database: {
+              query: function(query, values, callback) {
+                return new Promise((resolve, reject) => {
+                  resolve({
+                    rows: [
+                      {
+                        sid: "fakesid",
+                        phone: "1234"
+                      }
+                    ]
+                  });
+                });
+              }
+            },
+            done: function() {
+              return null;
+            }
+          });
+        });
+      };
+      this.client = {
+        verify: {
+          services: function(sid) {
+            return {
+              verificationChecks: {
+                create: function({ code }) {
+                  return new Promise((resolve, reject) => {
+                    if (code === "123456") resolve({ status: "approved" });
+                    else resolve({ status: "rejected" });
+                  });
+                }
+              }
+            };
+          }
+        }
+      };
+      this.verify = verify;
+    }
+  }
+
+  it("is false if the verification is wrong", () => {
+    const client = new FakeClient();
+    client.verify("zep", "123400").then(result => {
+      expect(result).toBe(false);
+    });
+  });
+
+  it("return true from the promise ", () => {
+    const client = new FakeClient();
+    client.verify("zep", "123456").then(result => {
+      expect(result).toBe(true);
+    });
+  });
+});