fix: do not allow decreasing depth in getExtensionCost (#1115)

Cafe137 · github-actions[bot] · web-flow · commit 7a22194f1483 · 2025-12-15T22:52:35.000+01:00
* fix: do not allow decreasing depth in getExtensionCost

* test: update test coverage

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Co-authored-by: github-actions[bot] &lt;41898282+github-actions[bot]@users.noreply.github.com&gt;
diff --git a/src/bee.ts b/src/bee.ts
@@ -2196,7 +2196,7 @@ export class Bee {
 
     const currentAmount = getAmountForDuration(batch.duration, chainState.currentPrice, blockTime)
     const currentCost = getStampCost(batch.depth, currentAmount)
-    const newCost = getStampCost(depth, currentAmount + amount)
+    const newCost = getStampCost(Math.max(batch.depth, depth), currentAmount + amount)
 
     return newCost.minus(currentCost)
   }

Original file line number	Diff line number	Diff line change
`@@ -2196,7 +2196,7 @@ export class Bee {`
`2196`	`2196`
`2197`	`2197`	`const currentAmount = getAmountForDuration(batch.duration, chainState.currentPrice, blockTime)`
`2198`	`2198`	`const currentCost = getStampCost(batch.depth, currentAmount)`
`2199`		`- const newCost = getStampCost(depth, currentAmount + amount)`
	`2199`	`+ const newCost = getStampCost(Math.max(batch.depth, depth), currentAmount + amount)`
`2200`	`2200`
`2201`	`2201`	`return newCost.minus(currentCost)`
`2202`	`2202`	`}`