test(client): add regression test for #15204 (#15530)

packages/client/tests/functional/issues/15204-conversion-error/_matrix.ts

@@ -0,0 +1,17 @@
+import { defineMatrix } from '../../_utils/defineMatrix'
+
+export default defineMatrix(() => [
+  [
+    {
+      provider: 'sqlite',
+    },
+  ],
+  [
+    {
+      fieldType: 'Int',
+    },
+    {
+      fieldType: 'BigInt',
+    },
+  ],
+])

packages/client/tests/functional/issues/15204-conversion-error/prisma/_schema.ts

@@ -0,0 +1,20 @@
+import { idForProvider } from '../../../_utils/idForProvider'
+import testMatrix from '../_matrix'
+
+export default testMatrix.setupSchema(({ provider, fieldType }) => {
+  return /* Prisma */ `
+    generator client {
+      provider = "prisma-client-js"
+    }
+
+    datasource db {
+      provider = "${provider}"
+      url      = env("DATABASE_URI_${provider}")
+    }
+
+    model TestModel {
+      id    ${idForProvider(provider)}
+      field ${fieldType}
+    }
+  `
+})

packages/client/tests/functional/issues/15204-conversion-error/tests.ts

@@ -0,0 +1,29 @@
+import testMatrix from './_matrix'
+// @ts-ignore
+import type { PrismaClient } from './node_modules/@prisma/client'
+
+declare let prisma: PrismaClient
+
+// Regression test for https://github.com/prisma/prisma/issues/15204
+testMatrix.setupTestSuite(
+  () => {
+    test('should return a descriptive error', async () => {
+      await prisma.$executeRaw`INSERT INTO "TestModel" ("id", "field") VALUES ("1", 1.84467440724388e+19)`
+
+      await expect(prisma.testModel.findMany()).rejects.toThrowError(
+        expect.objectContaining({
+          code: 'P2020',
+          message: expect.stringContaining(
+            'Value out of range for the type. Unable to convert BigDecimal value "18446744072438800000" to type i64',
+          ),
+        }),
+      )
+    })
+  },
+  {
+    optOut: {
+      from: ['mysql', 'mongodb', 'sqlserver', 'postgresql', 'cockroachdb'],
+      reason: 'SQLite-specific test',
+    },
+  },
+)