59 lines
2.7 KiB
TypeScript
59 lines
2.7 KiB
TypeScript
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import { afterEach, describe, expect, test } from 'bun:test';
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import { useTerminalStore } from './useTerminalStore';
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const setup = () => {
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useTerminalStore.getState().clearAll();
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useTerminalStore.getState().ensureDirectory('/repo');
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return useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0].id;
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};
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describe('terminal state reconciliation', () => {
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afterEach(() => useTerminalStore.getState().clearAll());
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test('applies snapshots atomically and deduplicates output by sequence', () => {
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const tabId = setup();
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useTerminalStore.getState().replaceBuffer('/repo', tabId, 'prompt', 4);
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useTerminalStore.getState().appendToBuffer('/repo', tabId, ' output', 5);
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useTerminalStore.getState().appendToBuffer('/repo', tabId, ' duplicate', 5);
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const tab = useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0];
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expect(tab.bufferChunks.map((chunk) => chunk.data).join('')).toBe('prompt output');
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expect(tab.lastSequence).toBe(5);
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});
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test('keeps raw live bytes separate from replay-safe bytes', () => {
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const tabId = setup();
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useTerminalStore.getState().appendToBuffer('/repo', tabId, 'prompt\u001b[6n', 1, 'prompt');
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const chunk = useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0].bufferChunks[0];
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expect(chunk.data).toBe('prompt\u001b[6n');
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expect(chunk.replayData).toBe('prompt');
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});
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test('uses collision-resistant tab identities', () => {
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const tabId = setup();
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expect(/^tab-\d+$/.test(tabId)).toBe(false);
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});
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test('does not let stale snapshots replace newer output', () => {
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const tabId = setup();
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useTerminalStore.getState().replaceBuffer('/repo', tabId, 'new', 8);
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useTerminalStore.getState().replaceBuffer('/repo', tabId, 'stale', 7);
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expect(useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0].bufferChunks[0].data).toBe('new');
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});
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test('preserves buffer identity for an identical snapshot', () => {
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const tabId = setup();
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useTerminalStore.getState().replaceBuffer('/repo', tabId, 'prompt', 8);
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const previous = useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0].bufferChunks;
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useTerminalStore.getState().replaceBuffer('/repo', tabId, 'prompt', 8);
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expect(useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0].bufferChunks).toBe(previous);
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});
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test('caps multibyte scrollback by UTF-8 bytes', () => {
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const tabId = setup();
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useTerminalStore.getState().appendToBuffer('/repo', tabId, '界'.repeat(200_000), 1);
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const tab = useTerminalStore.getState().getDirectoryState('/repo')!.tabs[0];
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expect(tab.bufferLength <= 512 * 1024).toBe(true);
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expect(new TextEncoder().encode(tab.bufferChunks[0].data).byteLength).toBe(tab.bufferLength);
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});
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});
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