1 files changed, 27 insertions, 0 deletions
diff --git a/src/lib/logic/csv.test.js b/src/lib/logic/csv.test.js
new file mode 100644
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+++ b/src/lib/logic/csv.test.js
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+import { describe, it, expect } from "vitest";
+import { parseLineToPlayer, parseCsv } from "./csv.js";
+
+describe("parseLineToPlayer", () => {
+  it("parses id, name, and level columns", () => {
+    const player = parseLineToPlayer("3, Jane, Doe, 7");
+    expect(player.id).toBe(3);
+    expect(player.firstName).toBe("Jane");
+    expect(player.lastName).toBe("Doe");
+    expect(player.level).toBe(7);
+    expect(player.games).toBe(0);
+  });
+});
+
+describe("parseCsv", () => {
+  it("skips the header row and blank lines", () => {
+    const csv = "id,firstName,lastName,level\n0, Jane, Doe, 7\n\n1, John, Smith, 3\n";
+    const players = parseCsv(csv);
+    expect(players).toHaveLength(2);
+    expect(players[0].firstName).toBe("Jane");
+    expect(players[1].firstName).toBe("John");
+  });
+
+  it("returns an empty array when there's only a header", () => {
+    expect(parseCsv("id,firstName,lastName,level")).toEqual([]);
+  });
+});