feat: 扩大体量参数范围

src/mosaic.test.ts

@@ -74,6 +74,22 @@ describe('generateMosaic', () => {
     expect(ratio).toBeLessThanOrEqual(1.03)
   })
 
+  it('支持将体量压缩到 10% 或膨胀到 1000%', () => {
+    const compressed = generateMosaic(SOURCE, [], {
+      volume: 10,
+      disorder: 0,
+      seed: 42,
+    })
+    const expanded = generateMosaic(SOURCE, [], {
+      volume: 1000,
+      disorder: 0,
+      seed: 42,
+    })
+
+    expect(compressed.outputLength).toBe(Math.round(compressed.inputLength * 0.1))
+    expect(expanded.outputLength).toBe(expanded.inputLength * 10)
+  })
+
   it('相同种子可复现，不同种子会重新侵蚀', () => {
     const candidates = selectKeywords(SOURCE, 14, 1)
     const first = generateMosaic(SOURCE, candidates, {