25 lines
1.2 KiB
Markdown
25 lines
1.2 KiB
Markdown
## ADDED Requirements
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### Requirement: Device Batch Series Binding Range Allocation Hint
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The device batch series binding dialog SHALL provide a derived allocation-count hint for device-number range selection.
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The hint MUST appear immediately below the `virtual_no_start` and `virtual_no_end` inputs.
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The count MUST be computed as `结束设备号 - 起始设备号 + 1` using the same numeric range values accepted by the dialog.
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#### Scenario: Show allocation count for a valid device-number range
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- **GIVEN** 用户打开“批量设置设备套餐系列绑定”弹窗
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- **AND** 用户选择 `selection_type="range"`
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- **WHEN** 用户输入 `virtual_no_start` 和 `virtual_no_end`，且计算结果为正整数
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- **THEN** 弹窗 MUST 显示 `共分配xxx台设备`
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- **AND** `xxx` MUST 等于 `结束设备号 - 起始设备号 + 1`
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- **AND** 当任一端点变化时，提示 MUST 立即更新
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#### Scenario: Hide count hint for incomplete or invalid device-number ranges
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- **GIVEN** 用户选择 `selection_type="range"`
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- **WHEN** 任一起止设备号为空、无法按有效数值范围计算，或计算结果小于 `1`
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- **THEN** 弹窗 MUST NOT 显示误导性的分配数量提示
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