PrismaP
Prisma•2y ago
Mirfayz

How to test a prisma call that uses `connectOrCreate`? (using vitest ideally)

Hey all!
I'm trying to write a unit test for the following prisma call in my Next.js app:
export async function createInterview(data: {
  participantIdentifier?: string;
  protocolId: string;
}) {
  const { participantIdentifier, protocolId } = data;

  const createdInterview = await prisma.interview.create({
    select: {
      participant: true,
      id: true,
    },
    data: {
      network: Prisma.JsonNull,
      participant: {
        connectOrCreate: {
          create: {
            identifier: participantIdentifier!,
          },
          where: {
            identifier: participantIdentifier,
          },
        },
      },
      protocol: {
        connect: {
          id: protocolId,
        },
      },
    },
  });

  return {
    error: null,
    createdInterviewId: createdInterview.id,
    errorType: null,
  };
}


Basically, I want to test this case: "It should connect a participant if an existing identifier is provided or create a participant if an identifier doesn't exist in the db'"

Is there any way of testing this? Maybe, mocking a DB state and using it to provide state or smt?

Would appreciate your help, thank you in advance!
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