feat(coding-agent): improve session picker search (#731)

packages/coding-agent/test/session-selector-search.test.ts

@@ -0,0 +1,127 @@
+import { describe, expect, it } from "vitest";
+import type { SessionInfo } from "../src/core/session-manager.js";
+import { filterAndSortSessions } from "../src/modes/interactive/components/session-selector-search.js";
+
+function makeSession(
+	overrides: Partial<SessionInfo> & { id: string; modified: Date; allMessagesText: string },
+): SessionInfo {
+	return {
+		path: `/tmp/${overrides.id}.jsonl`,
+		id: overrides.id,
+		cwd: overrides.cwd ?? "",
+		name: overrides.name,
+		created: overrides.created ?? new Date(0),
+		modified: overrides.modified,
+		messageCount: overrides.messageCount ?? 1,
+		firstMessage: overrides.firstMessage ?? "(no messages)",
+		allMessagesText: overrides.allMessagesText,
+	};
+}
+
+describe("session selector search", () => {
+	it("filters by quoted phrase with whitespace normalization", () => {
+		const sessions: SessionInfo[] = [
+			makeSession({
+				id: "a",
+				modified: new Date("2026-01-01T00:00:00.000Z"),
+				allMessagesText: "node\n\n   cve was discussed",
+			}),
+			makeSession({
+				id: "b",
+				modified: new Date("2026-01-02T00:00:00.000Z"),
+				allMessagesText: "node something else",
+			}),
+		];
+
+		const result = filterAndSortSessions(sessions, '"node cve"', "recent");
+		expect(result.map((s) => s.id)).toEqual(["a"]);
+	});
+
+	it("filters by regex (re:) and is case-insensitive", () => {
+		const sessions: SessionInfo[] = [
+			makeSession({
+				id: "a",
+				modified: new Date("2026-01-02T00:00:00.000Z"),
+				allMessagesText: "Brave is great",
+			}),
+			makeSession({
+				id: "b",
+				modified: new Date("2026-01-03T00:00:00.000Z"),
+				allMessagesText: "bravery is not the same",
+			}),
+		];
+
+		const result = filterAndSortSessions(sessions, "re:\\bbrave\\b", "recent");
+		expect(result.map((s) => s.id)).toEqual(["a"]);
+	});
+
+	it("recent sort preserves input order", () => {
+		const sessions: SessionInfo[] = [
+			makeSession({
+				id: "newer",
+				modified: new Date("2026-01-03T00:00:00.000Z"),
+				allMessagesText: "brave",
+			}),
+			makeSession({
+				id: "older",
+				modified: new Date("2026-01-01T00:00:00.000Z"),
+				allMessagesText: "brave",
+			}),
+			makeSession({
+				id: "nomatch",
+				modified: new Date("2026-01-04T00:00:00.000Z"),
+				allMessagesText: "something else",
+			}),
+		];
+
+		const result = filterAndSortSessions(sessions, '"brave"', "recent");
+		expect(result.map((s) => s.id)).toEqual(["newer", "older"]);
+	});
+
+	it("relevance sort orders by score and tie-breaks by modified desc", () => {
+		const sessions: SessionInfo[] = [
+			makeSession({
+				id: "late",
+				modified: new Date("2026-01-03T00:00:00.000Z"),
+				allMessagesText: "xxxx brave",
+			}),
+			makeSession({
+				id: "early",
+				modified: new Date("2026-01-01T00:00:00.000Z"),
+				allMessagesText: "brave xxxx",
+			}),
+		];
+
+		const result1 = filterAndSortSessions(sessions, '"brave"', "relevance");
+		expect(result1.map((s) => s.id)).toEqual(["early", "late"]);
+
+		const tieSessions: SessionInfo[] = [
+			makeSession({
+				id: "newer",
+				modified: new Date("2026-01-03T00:00:00.000Z"),
+				allMessagesText: "brave",
+			}),
+			makeSession({
+				id: "older",
+				modified: new Date("2026-01-01T00:00:00.000Z"),
+				allMessagesText: "brave",
+			}),
+		];
+
+		const result2 = filterAndSortSessions(tieSessions, '"brave"', "relevance");
+		expect(result2.map((s) => s.id)).toEqual(["newer", "older"]);
+	});
+
+	it("returns empty list for invalid regex", () => {
+		const sessions: SessionInfo[] = [
+			makeSession({
+				id: "a",
+				modified: new Date("2026-01-01T00:00:00.000Z"),
+				allMessagesText: "brave",
+			}),
+		];
+
+		const result = filterAndSortSessions(sessions, "re:(", "recent");
+		expect(result).toEqual([]);
+	});
+});