diff --git a/server/notification-providers/slack.js b/server/notification-providers/slack.js
index b4dad6f..d7ef721 100644
--- a/server/notification-providers/slack.js
+++ b/server/notification-providers/slack.js
@@ -25,7 +25,6 @@ class Slack extends NotificationProvider {
     }
 
     async send(notification, msg, monitorJSON = null, heartbeatJSON = null) {
-        let okMsg = "Sent Successfully.";
         try {
             if (heartbeatJSON == null) {
                 let data = {
@@ -35,7 +34,7 @@ class Slack extends NotificationProvider {
                     "icon_emoji": notification.slackiconemo,
                 };
                 await axios.post(notification.slackwebhookURL, data);
-                return okMsg;
+                return this.sendSuccess;
             }
 
             const time = heartbeatJSON["time"];
@@ -88,7 +87,7 @@ class Slack extends NotificationProvider {
             }
 
             await axios.post(notification.slackwebhookURL, data);
-            return okMsg;
+            return this.sendSuccess;
         } catch (error) {
             this.throwGeneralAxiosError(error);
         }
diff --git a/server/notification-providers/slack.spec.js b/server/notification-providers/slack.spec.js
index f025654..a360704 100644
--- a/server/notification-providers/slack.spec.js
+++ b/server/notification-providers/slack.spec.js
@@ -1,14 +1,19 @@
-// jest.mock("nodemailer", () => ({
-//     createTransport: jest.fn(),
-// }));
+jest.mock("axios", () => ({
+    post: jest.fn(),
+}));
 
-// const mockNodeMailer = require("nodemailer");
+jest.mock("../util-server");
+const { setting } = require("../util-server");
 
-const Slack = require("./slack");
+const axios = require("axios");
+const { UP, DOWN } = require("../../src/util");
+const NotificationSend = require("../notification");
 
 beforeEach(() => {
-    // mockNodeMailer.createTransport.mockReset();
+    setting.mockReset();
+    axios.post.mockReset();
 });
+const Slack = require("./slack");
 
 describe("notification default information", () => {
     it("should have the correct name", () => {
@@ -16,3 +21,232 @@ describe("notification default information", () => {
         expect(notification.name).toBe("slack");
     });
 });
+
+describe("notification to act properly on send", () => {
+    it("should call axios with the proper default data", async () => {
+
+        let response = {
+            data: {
+                Message: "OK"
+            }
+        };
+        axios.post.mockResolvedValueOnce(response);
+        setting.mockResolvedValueOnce("base.com");
+
+        let notif = new Slack();
+
+        let notificationConf = {
+            type: "slack",
+            slackchannel: "chan",
+            slackusername: "name",
+            slackiconemo: "😀",
+            slackwebhookURL: "www.slack.com/webhook"
+        };
+        let monitorConf = {
+            name: "testing monitor",
+            id: "123",
+        };
+        let heartbeatConf = {
+            time: "test time"
+        };
+        let msg = "PassedInMessage😀";
+        let res = await notif.send(notificationConf, msg, monitorConf, heartbeatConf);
+
+        expect(axios.post).toHaveBeenCalledWith("www.slack.com/webhook", {
+
+            "blocks": [
+                {
+                    "text": {
+                        "text": "Uptime Kuma Alert",
+                        "type": "plain_text",
+                    },
+                    "type": "header",
+                },
+                {
+                    "fields": [
+                        {
+                            "text": "*Message*\nPassedInMessage😀",
+                            "type": "mrkdwn",
+                        },
+                        {
+                            "text": "*Time (UTC)*\ntest time",
+                            "type": "mrkdwn",
+                        },
+                    ],
+                    "type": "section",
+                },
+                {
+                    "elements": [
+                        {
+                            "text": {
+                                "text": "Visit Uptime Kuma",
+                                "type": "plain_text",
+                            },
+                            "type": "button",
+                            "url": "base.com/dashboard/123",
+                            "value": "Uptime-Kuma",
+                        },
+                    ],
+                    "type": "actions",
+                },
+            ],
+            "channel": "chan",
+            "icon_emoji": "😀",
+            "text": "Uptime Kuma Alert: testing monitor",
+            "username": "name",
+        });
+        expect(res).toBe("Sent Successfully.");
+    });
+
+    it("should call axios with the proper data when monitor nil", async () => {
+        let response = {
+            data: {
+                Message: "OK"
+            }
+        };
+        axios.post.mockResolvedValueOnce(response);
+        setting.mockResolvedValueOnce("base.com");
+
+        let notif = new Slack();
+
+        let notificationConf = {
+            type: "slack",
+            slackchannel: "chan",
+            slackusername: "name",
+            slackiconemo: "😀",
+            slackwebhookURL: "www.slack.com/webhook"
+        };
+        let msg = "PassedInMessage😀";
+
+        let res = await notif.send(notificationConf, msg, null, null);
+
+        expect(axios.post).toHaveBeenCalledWith("www.slack.com/webhook", {
+
+            "channel": "chan",
+            "icon_emoji": "😀",
+            "text": "PassedInMessage😀",
+            "username": "name",
+        });
+        expect(res).toBe("Sent Successfully.");
+    });
+
+});
+
+describe("notification to act properly on error", () => {
+    it("should respond with an axios error on error", async () => {
+
+        setting.mockResolvedValueOnce("base.com");
+        axios.post.mockImplementation(() => {
+            throw new Error("Test Error");
+        });
+        let notif = new Slack();
+
+        let notificationConf = {
+            type: "slack",
+            slackchannel: "chan",
+            slackusername: "name",
+            slackiconemo: "😀",
+            slackwebhookURL: "www.slack.com/webhook"
+        };
+        let monitorConf = {
+            name: "testing monitor",
+            id: "123",
+        };
+        let heartbeatConf = {
+            time: "test time"
+        };
+        let msg = "PassedInMessage😀";
+
+        try {
+            await notif.send(notificationConf, msg, null, null);
+            expect("Error thrown").toBe(false);
+        } catch (e) {
+            expect(e.message).toBe("Error: Error: Test Error ");
+        }
+
+        expect(axios.post).toHaveBeenCalledWith("www.slack.com/webhook", {
+
+            "channel": "chan",
+            "icon_emoji": "😀",
+            "text": "PassedInMessage😀",
+            "username": "name",
+        });
+    });
+
+});
+
+describe("notification to get proper data from Notification.send", () => {
+    it("should call axios with proper data", async () => {
+        let response = {
+            data: {
+                Message: "OK"
+            }
+        };
+        axios.post.mockResolvedValueOnce(response);
+        setting.mockResolvedValueOnce("base.com");
+
+        let notificationConf = {
+            type: "slack",
+            slackchannel: "chan",
+            slackusername: "name",
+            slackiconemo: "😀",
+            slackwebhookURL: "www.slack.com/webhook"
+        };
+        let monitorConf = {
+            name: "testing monitor",
+            id: "123",
+        };
+        let heartbeatConf = {
+            time: "test time"
+        };
+        let msg = "PassedInMessage😀";
+
+        NotificationSend.Notification.init();
+        let res = await NotificationSend.Notification.send(notificationConf, msg, monitorConf, heartbeatConf);
+        expect(axios.post).toHaveBeenCalledWith("www.slack.com/webhook", {
+
+            "blocks": [
+                {
+                    "text": {
+                        "text": "Uptime Kuma Alert",
+                        "type": "plain_text",
+                    },
+                    "type": "header",
+                },
+                {
+                    "fields": [
+                        {
+                            "text": "*Message*\nPassedInMessage😀",
+                            "type": "mrkdwn",
+                        },
+                        {
+                            "text": "*Time (UTC)*\ntest time",
+                            "type": "mrkdwn",
+                        },
+                    ],
+                    "type": "section",
+                },
+                {
+                    "elements": [
+                        {
+                            "text": {
+                                "text": "Visit Uptime Kuma",
+                                "type": "plain_text",
+                            },
+                            "type": "button",
+                            "url": "base.com/dashboard/123",
+                            "value": "Uptime-Kuma",
+                        },
+                    ],
+                    "type": "actions",
+                },
+            ],
+            "channel": "chan",
+            "icon_emoji": "😀",
+            "text": "Uptime Kuma Alert: testing monitor",
+            "username": "name",
+        });
+        expect(res).toBe("Sent Successfully.");
+    });
+
+});