48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
/**
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* 测试BIN分布
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*/
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import pkg from './src/tools/card/CardGeneratorTool.js';
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const { CardGeneratorTool } = pkg;
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async function test() {
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console.log('生成1000张卡，分析BIN分布...\n');
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const cardGen = new CardGeneratorTool();
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await cardGen.initialize({});
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const cards = await cardGen.generateBatch(1000, 'unionpay');
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// 统计BIN分布
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const binCounts = {};
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cards.forEach(card => {
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const bin = card.number.slice(0, 13);
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binCounts[bin] = (binCounts[bin] || 0) + 1;
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});
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// 排序
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const sorted = Object.entries(binCounts)
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.sort((a, b) => b[1] - a[1]);
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console.log('=== BIN分布（前10个） ===\n');
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sorted.slice(0, 10).forEach(([bin, count], i) => {
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const percent = (count / 1000 * 100).toFixed(1);
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const isHot = ['6228367549131', '6228367544322', '6228367545864', '6228367546998', '6228367543917'].includes(bin);
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const mark = isHot ? '🔥' : ' ';
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console.log(`${i + 1}. ${mark} ${bin}: ${count}次 (${percent}%)`);
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});
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// 统计热门BIN的总占比
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const hotBins = ['6228367549131', '6228367544322', '6228367545864', '6228367546998', '6228367543917'];
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const hotCount = hotBins.reduce((sum, bin) => sum + (binCounts[bin] || 0), 0);
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const hotPercent = (hotCount / 1000 * 100).toFixed(1);
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console.log(`\n=== 热门BIN统计 ===`);
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console.log(`热门BIN总占比: ${hotCount}/1000 (${hotPercent}%)`);
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console.log(`期望占比: ~${(5 * 5 / (5 * 5 + 60 * 1) * 100).toFixed(1)}% (权重5 vs 权重1)`);
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}
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test().catch(err => {
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console.error('错误:', err.message);
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console.error(err.stack);
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});
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