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Fix TS narrowing errors in Chat.test.tsx

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TypeScript control flow analysis can't track reassignment inside vi.mock
callbacks, causing lastSendChatArgs to narrow to never. Use non-null
assertions after the explicit toBeNull() guard.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Dave
2026-03-17 16:13:29 +00:00
parent 6d87e64859
commit 3ce7276e89
1 changed files with 6 additions and 5 deletions
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11
frontend/src/components/Chat.test.tsx
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@@ -625,16 +625,17 @@ describe("Chat localStorage persistence (Story 145)", () => {
// Verify sendChat was called with ALL prior messages + the new one
expect(lastSendChatArgs).not.toBeNull();
expect(lastSendChatArgs?.messages).toHaveLength(3);
expect(lastSendChatArgs?.messages[0]).toEqual({
const args = lastSendChatArgs!;
expect(args.messages).toHaveLength(3);
expect(args.messages[0]).toEqual({
role: "user",
content: "What is Rust?",
});
expect(lastSendChatArgs?.messages[1]).toEqual({
expect(args.messages[1]).toEqual({
role: "assistant",
content: "Rust is a systems programming language.",
});
expect(lastSendChatArgs?.messages[2]).toEqual({
expect(args.messages[2]).toEqual({
role: "user",
content: "Tell me more",
});
@@ -1343,7 +1344,7 @@ describe("Bug 264: Claude Code session ID persisted across browser refresh", ()
expect(lastSendChatArgs).not.toBeNull();
expect(
(lastSendChatArgs?.config as Record<string, unknown>).session_id,
(lastSendChatArgs!.config as Record<string, unknown>).session_id,
).toBe("persisted-session-xyz");
});