diff --git a/jest.config.js b/jest.config.js
index 1afd1b6..58bf891 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -3,5 +3,9 @@ module.exports = {
     moduleFileExtensions: ["js", "ts"],
     testMatch: ["**/*.test.ts"],
     transform: { ".(t|j)s$": "babel-jest" },
+    transformIgnorePatterns: ["/node_modules/(?!node-fetch|fetch-blob).+\\.js$"],
+    moduleNameMapper: {
+        "formdata-node/file-from-path": "<rootDir>node_modules/formdata-node/lib/cjs/fileFromPath"
+    },
     verbose: true
 };
diff --git a/test/curseforge-utils.test.ts b/test/curseforge-utils.test.ts
new file mode 100644
index 0000000..06eccdd
--- /dev/null
+++ b/test/curseforge-utils.test.ts
@@ -0,0 +1,98 @@
+import process from "process";
+import { describe, test, expect } from "@jest/globals";
+import { unifyGameVersion, unifyJava, convertToCurseForgeVersions } from "../src/utils/curseforge-utils";
+
+describe("unifyGameVersion", () => {
+    test("versions in the unified format are not changed", async () => {
+        const validVersions = ["1.7.10", "1.12", "1.17-Snapshot", "1.17"];
+        for (const version of validVersions) {
+            expect(await unifyGameVersion(version)).toStrictEqual(version);
+        }
+    });
+
+    test("snapshot versions are converted to the unified format (\\d+\\.\\d+(\\.\\d+)?-Snapshot)", async () => {
+        expect(await unifyGameVersion("21w37a")).toStrictEqual("1.18-Snapshot");
+        expect(await unifyGameVersion("1.17.1-pre1")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1.17.1-pre2")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1.17.1-pre3")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1.17.1-rc1")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1.17.1-rc2")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1.17-rc2")).toStrictEqual("1.17-Snapshot");
+        expect(await unifyGameVersion("1.16-snapshot")).toStrictEqual("1.16-Snapshot");
+    });
+
+    test("unnecessary punctuation marks and whitespace symbols do not break the function", async () => {
+        expect(await unifyGameVersion(" 21w37a ")).toStrictEqual("1.18-Snapshot");
+        expect(await unifyGameVersion("1.17.1  pre1")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion(" 1.17.1-pre2 ")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion(" 1.17.1_pre2 ")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion(" 1 17 1 pre3 ")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1-17-1-rc1")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1.17.1.rc2")).toStrictEqual("1.17.1-Snapshot");
+        expect(await unifyGameVersion("1..17--rc2")).toStrictEqual("1.17-Snapshot");
+        expect(await unifyGameVersion("\t1-16.snapshot\t")).toStrictEqual("1.16-Snapshot");
+    });
+});
+
+describe("unifyJava", () => {
+    test("versions in the unified format are not changed", () => {
+        const validVersions = ["Java 8", "Java 9", "Java 10", "Java 11", "Java 1234"];
+        for (const version of validVersions) {
+            expect(unifyJava(version)).toStrictEqual(version);
+        }
+    });
+
+    test("java versions are converted to the unified format (Java \\d+)", () => {
+        expect(unifyJava("Java 1.8")).toStrictEqual("Java 8");
+        expect(unifyJava("Java 1.9")).toStrictEqual("Java 9");
+        expect(unifyJava("Java 1.10")).toStrictEqual("Java 10");
+        expect(unifyJava("Java 1.11")).toStrictEqual("Java 11");
+        expect(unifyJava("1.1234")).toStrictEqual("Java 1234");
+    });
+
+    test("unnecessary punctuation marks and whitespace symbols do not break the function", () => {
+        expect(unifyJava("1.8")).toStrictEqual("Java 8");
+        expect(unifyJava("9")).toStrictEqual("Java 9");
+        expect(unifyJava(" Java 10 ")).toStrictEqual("Java 10");
+        expect(unifyJava(" Java 1.11 ")).toStrictEqual("Java 11");
+        expect(unifyJava("\t\t\tjava 1 12\n")).toStrictEqual("Java 12");
+        expect(unifyJava(" 1.1234 ")).toStrictEqual("Java 1234");
+    });
+});
+
+describe("convertToCurseForgeVersions", () => {
+    test("versions are converted to CurseForge ids", async () => {
+        const versions = {
+            gameVersions: {
+                "1.18-Snapshot": 8633,
+                "21w37a": 8633,
+                "1.18 (snapshot)": 8633,
+                "1.18-rc1": 8633,
+                "1.17-pre3": 73242,
+                "1.17.1": 8516,
+            },
+            loaders: {
+                fabric: 7499,
+                forge: 7498,
+                rift: 7500
+            },
+            java: {
+                "Java 8": 4458,
+                "Java 1.8": 4458,
+                "1.8": 4458,
+                "8": 4458,
+                "Java 1.7": 4457,
+                "java 1.16": 8325,
+                "17": 8326,
+            }
+        };
+
+        const curseForgeVersions = await convertToCurseForgeVersions(Object.keys(versions.gameVersions), Object.keys(versions.loaders), Object.keys(versions.java), process.env.CURSEFORGE_TOKEN);
+        const expectedIds = new Set([...Object.values<number>(versions.gameVersions), ...Object.values(versions.loaders), ...Object.values(versions.java)]);
+
+        expect(curseForgeVersions).toHaveLength(expectedIds.size);
+        for (const expectedId of expectedIds) {
+            expect(curseForgeVersions).toContain(expectedId);
+        }
+    });
+});