do not backfill selected wells in edge cases

Opentrons · Oct 9, 2024 · a7a5977 · a7a5977
1 parent b363e78
commit a7a5977
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Showing 2 changed files with 3 additions and 14 deletions.
diff --git a/shared-data/js/helpers/__tests__/wellSets.test.ts b/shared-data/js/helpers/__tests__/wellSets.test.ts
@@ -441,7 +441,7 @@ describe('getWellSetForMultichannel with pipetteNozzleDetails', () => {
         activeNozzleCount: 4,
       },
     })
-    expect(bottomEdgeResult).toEqual(['E1', 'F1', 'G1', 'H1'])
+    expect(bottomEdgeResult).toEqual(['G1', 'H1'])
   })
 
   it('returns full plate for 96-channel pipette with no config', () => {

diff --git a/shared-data/js/helpers/wellSets.ts b/shared-data/js/helpers/wellSets.ts
@@ -140,20 +140,9 @@ export const makeWellSetHelpers = (): WellSetHelpers => {
       }
 
       const wellIndex = targetColumn.indexOf(wellName)
-      const totalWells = targetColumn.length
 
-      if (activeNozzleCount >= totalWells) {
-        return targetColumn
-      }
-
-      // Calculate how many wells we can include below the selected well, handling edge cases.
-      const wellsBelow = totalWells - wellIndex - 1
-      const wellsNeededAbove = Math.max(0, activeNozzleCount - wellsBelow - 1)
-
-      const startIndex = Math.max(0, wellIndex - wellsNeededAbove)
-      const endIndex = Math.min(totalWells, startIndex + activeNozzleCount)
-
-      return targetColumn.slice(startIndex, endIndex)
+      // If there are fewer wells than active nozzles, only select as many wells as there are nozzles.
+      return targetColumn.slice(wellIndex, wellIndex + activeNozzleCount)
     }
 
     if (channels === 8) {