test: fix TestIsNegative (#8783)
test: fix TestIsNegative (#8783)

Signed-off-by: He Weiwei <c834efa4898f8bf976e231f3903babf913725c68@vmware.com>
wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor,reasonerjt/harbor,wy65701436/harbor,reasonerjt/harbor