Add tests.

packages/server/src/api/routes/tests/row.spec.ts

@@ -2135,5 +2135,48 @@ describe.each([
         }
       )
     })
+
+    it("should not carry over context between formulas", async () => {
+      const js = Buffer.from(`return $("[text]");`).toString("base64")
+      const table = await config.createTable({
+        name: "table",
+        type: "table",
+        schema: {
+          text: {
+            name: "text",
+            type: FieldType.STRING,
+          },
+          formula: {
+            name: "formula",
+            type: FieldType.FORMULA,
+            formula: `{{ js "${js}"}}`,
+            formulaType: FormulaType.DYNAMIC,
+          },
+        },
+      })
+
+      for (let i = 0; i < 10; i++) {
+        await config.api.row.save(table._id!, { text: `foo${i}` })
+      }
+
+      const { rows } = await config.api.row.search(table._id!)
+      expect(rows).toHaveLength(10)
+
+      const formulaValues = rows.map(r => r.formula)
+      expect(formulaValues).toEqual(
+        expect.arrayContaining([
+          "foo0",
+          "foo1",
+          "foo2",
+          "foo3",
+          "foo4",
+          "foo5",
+          "foo6",
+          "foo7",
+          "foo8",
+          "foo9",
+        ])
+      )
+    })
   })
 })

packages/server/src/jsRunner/index.ts

@@ -24,13 +24,11 @@ export function init() {
         const bbCtx = context.getCurrentContext()!
 
         if (!bbCtx.vm) {
-          const vm = new IsolatedVM({
+          bbCtx.vm = new IsolatedVM({
             memoryLimit: env.JS_RUNNER_MEMORY_LIMIT,
             invocationTimeout: env.JS_PER_INVOCATION_TIMEOUT_MS,
             isolateAccumulatedTimeout: env.JS_PER_REQUEST_TIMEOUT_MS,
           }).withHelpers()
-
-          bbCtx.vm = vm
         }
         const { helpers, ...rest } = ctx
         return bbCtx.vm.withContext(rest, () => bbCtx.vm!.execute(js))