Function tmpDirEntries

cmd/cache-proxy/cache_test.go:204–211

tmpDirEntries counts the files left behind in the cache's .tmp subdir, so tests can assert PutStream never leaks a temp file.

(t *testing.T, c *DiskCache)

	if _, err := c.PutStream(bad, bytes.NewReader([]byte("x"))); err == nil {
		t.Error("PutStream should reject invalid key")
	}
}

// TestDiskCacheEviction exercises LRU eviction when the cache fills up.
// We set maxBytes tiny by construction: NewDiskCache uses statfs * percent,
// so we directly mutate the cache after construction for a predictable test.
func TestDiskCacheEviction(t *testing.T) {
	c := newTestCache(t)
	// Force the eviction threshold low so we trigger it quickly.
	c.maxBytes = 100