diff --git a/test/managers/MessagePollManager.js b/test/managers/MessagePollManager.js
new file mode 100644
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--- /dev/null
+++ b/test/managers/MessagePollManager.js
@@ -0,0 +1,151 @@
+import { expect } from "chai";
+import MessagePollManager from "../../src/managers/MessagePollManager.js";
+import { TEST_CLIENTS } from "../../src/testData.js";
+import { TO_JSON_TYPES_ENUM } from "../../src/constants.js";
+
+describe("MessagePollManager", function () {
+  context("check import", function () {
+    it("should be a function", function () {
+      expect(MessagePollManager).to.be.a("function");
+    });
+  });
+
+  context("check structure", function () {
+    it("should create a new instance of MessagePollManager with the correct options", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client, {});
+      expect(messagePollManager).to.be.an.instanceOf(MessagePollManager);
+      expect(messagePollManager).to.have.property("_addVote");
+    });
+  });
+
+  context("check input of constructor", function () {
+    it("should throw an error if client is not a Client instance", function () {
+      expect(() => new MessagePollManager()).to.throw(
+        TypeError,
+        "GLUON: Client must be an instance of Client.",
+      );
+    });
+    it("should throw an error if existingResponses is not an object", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      expect(() => new MessagePollManager(client, 123456)).to.throw(
+        TypeError,
+        "GLUON: Existing responses must be an object.",
+      );
+    });
+    it("should input the correct data into the cache", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client, {
+        1: [123456],
+      });
+      messagePollManager._addVote("123457", 1);
+      expect(
+        messagePollManager.toJSON(TO_JSON_TYPES_ENUM.CACHE_FORMAT),
+      ).to.deep.equal({
+        1: [String(123456), String(123457)],
+      });
+    });
+  });
+
+  context("check addVote method", function () {
+    it("should throw an error if user_id is not a string", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client);
+      expect(() => messagePollManager._addVote(123456, 1)).to.throw(
+        TypeError,
+        "GLUON: User ID must be a string.",
+      );
+    });
+    it("should throw an error if answer_id is not a number", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client);
+      expect(() => messagePollManager._addVote("123456", "1")).to.throw(
+        TypeError,
+        "GLUON: Answer ID must be a number.",
+      );
+    });
+    it("should add the vote to the cache", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client);
+      messagePollManager._addVote("123456", 1);
+      expect(
+        messagePollManager.toJSON(TO_JSON_TYPES_ENUM.CACHE_FORMAT),
+      ).to.deep.equal({
+        1: [String(123456)],
+      });
+    });
+  });
+
+  context("check removeVote method", function () {
+    it("should throw an error if user_id is not a string", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client);
+      expect(() => messagePollManager._removeVote(123456, 1)).to.throw(
+        TypeError,
+        "GLUON: User ID must be a string.",
+      );
+    });
+    it("should throw an error if answer_id is not a number", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client);
+      expect(() => messagePollManager._removeVote("123456", "1")).to.throw(
+        TypeError,
+        "GLUON: Answer ID must be a number.",
+      );
+    });
+    it("should remove the vote from the cache", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client, {
+        1: [123456],
+      });
+      messagePollManager._removeVote("123456", 1);
+      expect(
+        messagePollManager.toJSON(TO_JSON_TYPES_ENUM.CACHE_FORMAT),
+      ).to.deep.equal({
+        1: [],
+      });
+    });
+  });
+
+  context("check toJSON method", function () {
+    it("should return the correct cache format", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client, {
+        1: [123456],
+      });
+      expect(
+        messagePollManager.toJSON(TO_JSON_TYPES_ENUM.CACHE_FORMAT),
+      ).to.deep.equal({
+        1: [String(123456)],
+      });
+    });
+    it("should return the correct storage format", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client, {
+        1: [123456],
+      });
+      expect(
+        messagePollManager.toJSON(TO_JSON_TYPES_ENUM.STORAGE_FORMAT),
+      ).to.deep.equal({
+        1: [String(123456)],
+      });
+    });
+    it("should return the correct discord format", function () {
+      const client = TEST_CLIENTS.ALL_CACHES_ENABLED();
+      const messagePollManager = new MessagePollManager(client, {
+        1: [123456],
+      });
+      expect(
+        messagePollManager.toJSON(TO_JSON_TYPES_ENUM.DISCORD_FORMAT),
+      ).to.deep.equal({
+        answer_counts: [
+          {
+            count: 1,
+            id: 1,
+            me_voted: false,
+          },
+        ],
+      });
+    });
+  });
+});