test: 🚨 add regression test for #83

tests/api/src/tests/v1/rest/grades.ts

@@ -0,0 +1,21 @@
+import { assert, describe, expect, it } from "vitest";
+
+describe("/v1/rest/grades tests", () => {
+  it("returns zeros for nonexistent aggregate", async () => {
+    const res = await get("/v1/rest/grades/aggregate?year=2013");
+    assert("payload" in res);
+    expect(res.payload).toHaveProperty("sectionList", []);
+    assert(typeof res.payload === "object");
+    assert(res.payload !== null);
+    assert("gradeDistribution" in res.payload);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeACount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeBCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeCCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeDCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeFCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradePCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeNPCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("gradeWCount", 0);
+    expect(res.payload.gradeDistribution).toHaveProperty("averageGPA", 0);
+  });
+});