Invalid constraints for non-nullable array

[rwysocki-equinix]

When array elements are not nullable, the array validation constraints are applied not to array, but each element
I've modified an existing zod testcase which now fails to visualize this problem:

  it('list field non-null', async () => {
    const schema = buildSchema(/* GraphQL */ `
      input UserCreateInput {
        profile: [String!]! @constraint(minLength: 1, maxLength: 5000)
      }

      directive @constraint(minLength: Int!, maxLength: Int!) on INPUT_FIELD_DEFINITION
    `);
    const result = await plugin(
        schema,
        [],
        {
          schema: 'zod',
          directives: {
            constraint: {
              minLength: ['min', '$1', 'Please input more than $1'],
              maxLength: ['max', '$1', 'Please input less than $1'],
            },
          },
        },
        {}
    );
    const wantContains = [
      'export function UserCreateInputSchema(): z.ZodObject<Properties<UserCreateInput>>',
      'profile: z.array(z.string()).min(1, "Please input more than 1").max(5000, "Please input less than 5000")',
    ];
    for (const wantContain of wantContains) {
      expect(result.content).toContain(wantContain);
    }
  });

[Code-Hex]

@rwysocki-equinix Could you send me PR for this fix?

[ashar-nadeem-lumi]

Bumping this, is there any workaround? Or a way to enforce a min length on the zod array ?

[llwire]

Bumping this again.

There is actually no scenario produces a near-desired outcome.

[String!]! @constraint(min: 5) produces z.array(z.string().min(5))

[String]! @constraint(min: 5) produces z.array(z.string().nullable())

[String!] @constraint(min: 5) produces z.array(z.string().min(1).max(5)).min(1).max(5).nullish()

[String] @constraint(min: 5) produces z.array(z.string().nullable()).min(1).max(5).nullish()

The last one might be the closest but making the array entries nullable isn't great when you generate a client-side schema.