Release Mail Tools 0.2.0

tests/core/mbox.test.ts

@@ -0,0 +1,47 @@
+import { describe, expect, it } from "vitest";
+import { parseMbox, searchMailbox } from "../../src/core/mbox";
+
+describe("mbox import and threading", () => {
+  it("splits mboxrd messages, unescapes body From lines, and threads replies", () => {
+    const source = `From sender@example.test Tue Sep  1 10:00:00 2026
+From: Sender <sender@example.test>
+Date: Tue, 01 Sep 2026 10:00:00 +0000
+Message-ID: <root@example.test>
+Subject: Root
+
+First body
+>From escaped body line
+From reply@example.test Tue Sep  1 10:01:00 2026
+From: Reply <reply@example.test>
+Date: Tue, 01 Sep 2026 10:01:00 +0000
+Message-ID: <reply@example.test>
+In-Reply-To: <root@example.test>
+References: <root@example.test>
+Subject: Re: Root
+
+Reply body
+`;
+    const mailbox = parseMbox(new TextEncoder().encode(source));
+    expect(mailbox.entries).toHaveLength(2);
+    expect(mailbox.entries[0]?.message.bodySource).toContain(
+      "From escaped body line",
+    );
+    expect(mailbox.entries[1]).toMatchObject({
+      parentIndex: 0,
+      depth: 1,
+      subject: "Re: Root",
+    });
+    expect(
+      searchMailbox(mailbox, "escaped body").map((entry) => entry.index),
+    ).toEqual([0]);
+    expect(
+      searchMailbox(mailbox, "reply root", { includeBodies: false }),
+    ).toHaveLength(1);
+  });
+
+  it("requires an envelope separator", () => {
+    expect(() =>
+      parseMbox(new TextEncoder().encode("From: a@example.test\n\nbody")),
+    ).toThrow(/envelope separator/iu);
+  });
+});