diff --git a/server/@types/tap/index.d.ts b/server/@types/tap/index.d.ts
deleted file mode 100644
index 88fb9ff62..000000000
--- a/server/@types/tap/index.d.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-/* eslint-disable @typescript-eslint/no-explicit-any */
-
-declare module "tap" {
-    export function rejects(
-        promiseOrFn: Promise<any> | ((...args: any[]) => Promise<any>),
-        expectedError: any,
-        message?: string,
-        extra?: any
-    ): Promise<void>;
-}
diff --git a/server/src/lib/score-import/import-types/api/arc-ddr/converter.test.ts b/server/src/lib/score-import/import-types/api/arc-ddr/converter.test.ts
new file mode 100644
index 000000000..e7ae4cdde
--- /dev/null
+++ b/server/src/lib/score-import/import-types/api/arc-ddr/converter.test.ts
@@ -0,0 +1,66 @@
+import t from "tap";
+import { CloseAllConnections } from "../../../../../test-utils/close-connections";
+import ResetDBState from "../../../../../test-utils/reset-db-state";
+import { GetKTDataJSON } from "../../../../../test-utils/test-data";
+import CreateLogCtx from "../../../../logger/logger";
+import { ConvertAPIArcDDR } from "./converter";
+import { ARCDDRScore } from "./types";
+import deepmerge from "deepmerge";
+
+const logger = CreateLogCtx(__filename);
+
+const arcScore = GetKTDataJSON("./api-arc/ddr-score.json") as ARCDDRScore;
+
+t.test("#ConvertAPIArcDDR", (t) => {
+    t.beforeEach(ResetDBState);
+
+    t.test("Should convert a valid score", async (t) => {
+        const res = await ConvertAPIArcDDR(arcScore, {}, "api/arc-ddr", logger);
+
+        t.strictSame(res, {
+            song: {},
+            chart: {},
+            dryScore: {},
+        });
+
+        t.end();
+    });
+
+    t.test("Should throw on an invalid score", (t) => {
+        t.rejects(
+            () =>
+                ConvertAPIArcDDR(
+                    deepmerge(arcScore, { ex_score: "foo" }),
+                    {},
+                    "api/arc-ddr",
+                    logger
+                ),
+            {
+                message: /Invalid ARC Score:/iu,
+            } as any
+        );
+
+        t.end();
+    });
+
+    t.test("Should throw on no chart", (t) => {
+        t.rejects(
+            () =>
+                ConvertAPIArcDDR(
+                    deepmerge(arcScore, { chart_id: "foo" }),
+                    {},
+                    "api/arc-ddr",
+                    logger
+                ),
+            {
+                message: /Could not find chart/iu,
+            } as any
+        );
+
+        t.end();
+    });
+
+    t.end();
+});
+
+t.teardown(CloseAllConnections);