weichenandCursor
6fd1d441a9
Why: Old tool results were filling the window, compaction could split a tool group or commit a stale summary, and reminders arrived as extra user messages. Evidence: Compaction retries a conflict and opens the circuit after three failures; clearing keeps the last five tool results; a stale file write is rejected; RPC reports started, queued, or handled. Impact: Requests over the context window replace older tool results with a placeholder. Rewriting an existing file now requires a read in the same run. Subagent text over 32000 characters is capped. Refs: feature/context-engineering Co-authored-by: Cursor <cursoragent@cursor.com>
41 lines
984 B
Go
41 lines
984 B
Go
package filestate
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import (
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"os"
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"path/filepath"
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"strings"
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"testing"
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"time"
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)
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func TestCheckWriteRejectsStaleFile(t *testing.T) {
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dir := t.TempDir()
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path := filepath.Join(dir, "note.txt")
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if err := os.WriteFile(path, []byte("v1"), 0o644); err != nil {
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t.Fatal(err)
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}
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tr := New()
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if err := tr.CheckWrite(path); err == nil || !strings.Contains(err.Error(), "请先读取") {
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t.Fatalf("unread write: %v", err)
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}
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if err := tr.NoteRead(path); err != nil {
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t.Fatal(err)
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}
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if err := tr.CheckWrite(path); err != nil {
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t.Fatal(err)
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}
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// 改大小，并尽量推开修改时间。
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time.Sleep(20 * time.Millisecond)
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if err := os.WriteFile(path, []byte("v1-changed"), 0o644); err != nil {
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t.Fatal(err)
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}
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err := tr.CheckWrite(path)
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if err == nil || !strings.Contains(err.Error(), "请重新读取") {
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t.Fatalf("stale write: %v", err)
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}
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missing := filepath.Join(dir, "new.txt")
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if err := tr.CheckWrite(missing); err != nil {
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t.Fatalf("create: %v", err)
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}
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}
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