test: expand bridge unit coverage for payloads and errors

tests/unit/keepass.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, mock, test } from "bun:test";
-import { KeePassDatabase } from "../../src/keepass";
+import { KeePassDatabase, openKeePassDatabase } from "../../src/keepass";
 
 const spawnMock = mock(() => {
 	throw new Error("spawn should be mocked per test");
@@ -51,6 +51,57 @@ describe("KeePassDatabase", () => {
 		await expect(db.listEntries()).rejects.toThrow("boom");
 	});
 
+	test("throws on empty bridge output", async () => {
+		spawnMock.mockImplementation(() => {
+			const child = {
+				stdin: { write: () => undefined, end: () => undefined },
+				stdout: { on: (_event: string, cb: (chunk: Buffer | string) => void) => cb("   ") },
+				stderr: { on: (_event: string, cb: (chunk: Buffer | string) => void) => cb("bridge failed") },
+				on: (event: string, cb: (code?: number | null) => void) => {
+					if (event === "close") queueMicrotask(() => cb(1));
+				},
+			};
+			return child as never;
+		});
+
+		const db = new KeePassDatabase("db.kdbx", { password: "secret" }, "python3", new URL("file:///tmp/bridge.py"));
+		await expect(db.listEntries()).rejects.toThrow("bridge failed");
+	});
+
+	test("throws on invalid JSON output", async () => {
+		spawnMock.mockImplementation(() => {
+			const child = {
+				stdin: { write: () => undefined, end: () => undefined },
+				stdout: { on: (_event: string, cb: (chunk: Buffer | string) => void) => cb("not json") },
+				stderr: { on: () => undefined },
+				on: (event: string, cb: (code?: number | null) => void) => {
+					if (event === "close") queueMicrotask(() => cb(0));
+				},
+			};
+			return child as never;
+		});
+
+		const db = new KeePassDatabase("db.kdbx", { password: "secret" }, "python3", new URL("file:///tmp/bridge.py"));
+		await expect(db.listEntries()).rejects.toThrow("Invalid JSON from Python bridge");
+	});
+
+	test("throws on spawn error", async () => {
+		spawnMock.mockImplementation(() => {
+			const child = {
+				stdin: { write: () => undefined, end: () => undefined },
+				stdout: { on: () => undefined },
+				stderr: { on: () => undefined },
+				on: (event: string, cb: (error: Error) => void) => {
+					if (event === "error") queueMicrotask(() => cb(new Error("spawn failed")));
+				},
+			};
+			return child as never;
+		});
+
+		const db = new KeePassDatabase("db.kdbx", { password: "secret" }, "python3", new URL("file:///tmp/bridge.py"));
+		await expect(db.listEntries()).rejects.toThrow("spawn failed");
+	});
+
 	test("createEntry forwards the create-entry command", async () => {
 		mockSuccessfulBridgeResponse({ title: "New" });
 
@@ -78,4 +129,98 @@ describe("KeePassDatabase", () => {
 		await expect(db.save()).resolves.toBeUndefined();
 		expect(spawnMock).toHaveBeenCalled();
 	});
+
+	test("findEntries forwards the query payload", async () => {
+		let payload = "";
+		spawnMock.mockImplementation(() => {
+			const child = {
+				stdin: {
+					write: (chunk: string) => {
+						payload += chunk;
+					},
+					end: () => undefined,
+				},
+				stdout: { on: (_event: string, cb: (chunk: Buffer | string) => void) => cb(JSON.stringify({ ok: true, data: [] })) },
+				stderr: { on: () => undefined },
+				on: (event: string, cb: (code?: number | null) => void) => {
+					if (event === "close") queueMicrotask(() => cb(0));
+				},
+			};
+			return child as never;
+		});
+
+		const db = new KeePassDatabase("db.kdbx", { password: "secret" }, "python3", new URL("file:///tmp/bridge.py"));
+		await db.findEntries({ title: "abc", username: "u", url: "https://x", groupPath: "Folder" });
+
+		expect(JSON.parse(payload)).toMatchObject({
+			command: "find-entries",
+			path: "db.kdbx",
+			password: "secret",
+			query: { title: "abc", username: "u", url: "https://x", groupPath: "Folder" },
+		});
+	});
+
+	test("listGroups forwards the list-groups command", async () => {
+		let payload = "";
+		spawnMock.mockImplementation(() => {
+			const child = {
+				stdin: {
+					write: (chunk: string) => {
+						payload += chunk;
+					},
+					end: () => undefined,
+				},
+				stdout: { on: (_event: string, cb: (chunk: Buffer | string) => void) => cb(JSON.stringify({ ok: true, data: [] })) },
+				stderr: { on: () => undefined },
+				on: (event: string, cb: (code?: number | null) => void) => {
+					if (event === "close") queueMicrotask(() => cb(0));
+				},
+			};
+			return child as never;
+		});
+
+		const db = new KeePassDatabase("db.kdbx", { password: "secret" }, "python3", new URL("file:///tmp/bridge.py"));
+		await db.listGroups();
+
+		expect(JSON.parse(payload)).toMatchObject({
+			command: "list-groups",
+			path: "db.kdbx",
+			password: "secret",
+		});
+	});
+
+	test("passes keyFile in the bridge payload", async () => {
+		let payload = "";
+		spawnMock.mockImplementation(() => {
+			const child = {
+				stdin: {
+					write: (chunk: string) => {
+						payload += chunk;
+					},
+					end: () => undefined,
+				},
+				stdout: { on: (_event: string, cb: (chunk: Buffer | string) => void) => cb(JSON.stringify({ ok: true, data: [] })) },
+				stderr: { on: () => undefined },
+				on: (event: string, cb: (code?: number | null) => void) => {
+					if (event === "close") queueMicrotask(() => cb(0));
+				},
+			};
+			return child as never;
+		});
+
+		const db = new KeePassDatabase("db.kdbx", { password: "secret", keyFile: "keyfile.key" }, "python3", new URL("file:///tmp/bridge.py"));
+		await db.listEntries();
+
+		expect(JSON.parse(payload)).toMatchObject({
+			path: "db.kdbx",
+			password: "secret",
+			keyFile: "keyfile.key",
+			command: "list-entries",
+		});
+	});
+
+	test("openKeePassDatabase returns a KeePassDatabase instance", () => {
+		const db = openKeePassDatabase("db.kdbx", { password: "secret" });
+		expect(db).toBeInstanceOf(KeePassDatabase);
+	});
 });